Re: [SlimDevices: Audiophiles] Stereophile Article: MP3 vs AAC vs FLAC vs CD
smc2911;278662 Wrote: Good point. So I'd summarise in terms of three levels of redundancy: 1. You know it's there in principal, but it's not useful. 2. You use it to identify a problem (e.g. CRC) but you can't do anything about the problem. 3. You use it to correct errors (ECC). 2 and 3 come in degrees depending on how many errors they can deal with before they stop being useful. Exactly.. except I would say #1 is only valid for things like TCP/IP transport with wav files. You get the TCP checksums, but it's not inherent to the audio encoding like FLAC. So just to make the audiophile community twitch a bit. The 16bit checksum used by TCP is not exactly the best. It catches most errors, but I have personally seen corruption happen in live networks. Of course this was a network switch handling many many gigabits of traffic, and the error rates were so bad that it was causing 50% of packets to be dropped because the checksums didn't match.. but when you're doing gigabits of traffic and .0001% of the packets are corrupt in some way but still pass checksums get through to the application layer, you see strange things happen. Thankfully the likelyhood of this causing audible issues with the squeezebox are very very low. -- SuperQ SuperQ's Profile: http://forums.slimdevices.com/member.php?userid=2139 View this thread: http://forums.slimdevices.com/showthread.php?t=44532 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Who uses green marker pens on their CDs?
if you must use cd . I've used the original stop light and various incarnations of poster paint pens over the last 20years the effect can be heard just [on the cdp's I've used ] far more effective are cd flux cleaner by phonosophie this produces an effect that very obvious the down side is the cost but a bottle has treated 1000 cd's an still has some left. The other item that produces the archetypal night and day difference[on my cdp] is a Glasse Audio system lathe I have a number of duplicate discs and its clear from the first few notes the effect that this treatment has once you swap between disc. On this note a number of people have asked does the effect extend to flacs made from treated disc ...unfortunately not ime treated and untreated sound identical ...therefore the gains are only in the cdp replay mode. -- zanash Acoustician and builder of interesting cables zanash's Profile: http://forums.slimdevices.com/member.php?userid=12157 View this thread: http://forums.slimdevices.com/showthread.php?t=44567 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] ModWright Transporter experience: truth vs. beauty?
Lefatshe;278634 Wrote: the audiophile goal: faking-out your brain so you believe you're at the live concert. I really enjoy that description :-)) -- haraldo Suse Linux Enterprise Desktop / SC7 - SB3 - Benchmark DAC1 - Krell KAV400xi - Meadowlark Kestrel2 / Duntech PCL-15 Everything is difficult before it's easy haraldo's Profile: http://forums.slimdevices.com/member.php?userid=13472 View this thread: http://forums.slimdevices.com/showthread.php?t=43269 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Who uses green marker pens on their CDs?
zanash;278682 Wrote: On this note a number of people have asked does the effect extend to flacs made from treated disc ...unfortunately not ime treated and untreated sound identical ...therefore the gains are only in the cdp replay mode. Why do you consider that unfortunate? -- opaqueice opaqueice's Profile: http://forums.slimdevices.com/member.php?userid=4234 View this thread: http://forums.slimdevices.com/showthread.php?t=44567 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Stereophile Article: MP3 vs AAC vs FLAC vs CD
SuperQ;278680 Wrote: Exactly.. except I would say #1 is only valid for things like TCP/IP transport with wav files. You get the TCP checksums, but it's not inherent to the audio encoding like FLAC. So just to make the audiophile community twitch a bit. The 16bit checksum used by TCP is not exactly the best. It catches most errors, but I have personally seen corruption happen in live networks. Of course this was a network switch handling many many gigabits of traffic, and the error rates were so bad that it was causing 50% of packets to be dropped because the checksums didn't match.. but when you're doing gigabits of traffic and .0001% of the packets are corrupt in some way but still pass checksums get through to the application layer, you see strange things happen. Thankfully the likelyhood of this causing audible issues with the squeezebox are very very low. But what about the CRC in the Ethernet frame? -- Phil Leigh You want to see the signal path BEFORE it gets onto a CD/vinyl...it ain't what you'd call minimal...SB3+Stontronics PSU - Altmann JISCO/UPCI - TACT RCS 2.2X with Good Vibrations S/W - MF X-DAC V3/X-PSU/X-10 buffer (Audiocomm full mods)- Linn 5103 - Linn Aktiv 5.1 system (6x LK140's, ESPEK/TRIKAN/KATAN/SEIZMIK 10.5), Townsend Supertweeters, Kimber Chord cables Phil Leigh's Profile: http://forums.slimdevices.com/member.php?userid=85 View this thread: http://forums.slimdevices.com/showthread.php?t=44532 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Who uses green marker pens on their CDs?
I'd like to get to the bottom of the science behind this if there is any. If I'm following this correctly, the CD surface treatments improve CDP replay perceived sound quality. However, a rip from a treated disk sounds identical to one from an untreated disk? In which case, the following possibility spring to mind: The surface treatment makes no difference to the bits received, however a CDP has to work harder to track an untreated disk and so servo noise causes jitter or other artifacts which affect the real-time output of the CDP. However, a rip is never going to suffer like this in the first place since there is no real-time activity as such, we are just moving bits around from one storage media to another. Jitter, noise etc will only appear later when the rip is played - by which time the disk and its laser reader have already left the building. Since there is no reliable way of comparing the audio playback quality of the CD in a CDP versus a ripped file via a media player...not sure where that leaves us. For me this is part of the equation that renders CDP redundant, since they are inherently more flawed as a digital TRANSPORT mech than a hard drive. Bits are bits until they hit the DAC - then the fun begins. -- Phil Leigh You want to see the signal path BEFORE it gets onto a CD/vinyl...it ain't what you'd call minimal...SB3+Stontronics PSU - Altmann JISCO/UPCI - TACT RCS 2.2X with Good Vibrations S/W - MF X-DAC V3/X-PSU/X-10 buffer (Audiocomm full mods)- Linn 5103 - Linn Aktiv 5.1 system (6x LK140's, ESPEK/TRIKAN/KATAN/SEIZMIK 10.5), Townsend Supertweeters, Kimber Chord cables Phil Leigh's Profile: http://forums.slimdevices.com/member.php?userid=85 View this thread: http://forums.slimdevices.com/showthread.php?t=44567 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Who uses green marker pens on their CDs?
LPs are circular lumps of plastic, pressed out at speed, and subject to warps, air bubbles, non-concentricity, and sometimes not being circular. CDs are circular lumps of plastic... CD Players have to get the bits off, in a timely fashion, and the power demands of their servos can interfere with the player, and even other items in the replay chain. Ripping has to get the bits off - and that's it. Recent experience with ripping shows that getting the bits off is perhaps not as difficult as I previously thought. Most CDs in Accuraterip go through dBpoweramp on the first pass. I do notice that tracks near the end of a long CD tend to have more problems than others. As these tracks are on the outside of the CD, I assume that is due to warping. So items that I know to work, such as the Ringmat Statmat, or the CD Lathe are presumably more about reducing jitter and/or the work the servos have to do. The CD Lathe will make your CD perfectly circular, something that they are frequently not. That alone will reduce the load on the servos and motors. As always, the problem is identifying all the factors involved. For example, why does streaming wave sound different to streaming flac (wired) on a TP ? It ain't the quality of the bits. -- bigfool1956 David Ayers Music is what counts, hifi just helps us enjoy it more bigfool1956's Profile: http://forums.slimdevices.com/member.php?userid=13782 View this thread: http://forums.slimdevices.com/showthread.php?t=44567 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Who uses green marker pens on their CDs?
Do a blind listening test and see if you can tell the difference. If you can't why bother colouring your CDs in? -- probedb Paul. 'last.fm' (http://www.last.fm/user/probedb) probedb's Profile: http://forums.slimdevices.com/member.php?userid=7825 View this thread: http://forums.slimdevices.com/showthread.php?t=44567 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Who uses green marker pens on their CDs?
CD lathing is very problematic the CD manufacturing process results in extreme stress in the plastics the CD is made of , lathing , if it generates ANY heat adds to the stress.Any solvent in a marker will also promote tiny stress cracks, as will lathing. This is generally not a hassle in cd playback as it's slow. Spin these cd's in a fast drive for extraction and you can have the cd grenade in the drive. This has happened to me. Do not subject CD's to ANY heat or solvents. -- Rodney_Gold Sb3/Z-sys RDP1/meridian DSP5500's TP/X-cans v3/Senns 650's TP/TACT 2.0/SCM 50a's TP/Meridian DSP5000's The nicest thing about smacking your head against the wall is...the feeling you get when you stop Rodney_Gold's Profile: http://forums.slimdevices.com/member.php?userid=14618 View this thread: http://forums.slimdevices.com/showthread.php?t=44567 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Who uses green marker pens on their CDs?
bigfool1956;278768 Wrote: Completely OT, but when I was a kid, my Dad had a 78 which when played would give you a commentary of a horse race. The thing was that each time you played it a different horse would win It actually had 6 concentric grooves cut into it, and it was therefore random which groove the pickup would fall into when placed on the record. I loved that disc, but then I was only a kid. There's a famous Monty Python LP that has the trick (2 concentric grooves) -- Phil Leigh You want to see the signal path BEFORE it gets onto a CD/vinyl...it ain't what you'd call minimal...SB3+Stontronics PSU - Altmann JISCO/UPCI - TACT RCS 2.2X with Good Vibrations S/W - MF X-DAC V3/X-PSU/X-10 buffer (Audiocomm full mods)- Linn 5103 - Linn Aktiv 5.1 system (6x LK140's, ESPEK/TRIKAN/KATAN/SEIZMIK 10.5), Townsend Supertweeters, Kimber Chord cables Phil Leigh's Profile: http://forums.slimdevices.com/member.php?userid=85 View this thread: http://forums.slimdevices.com/showthread.php?t=44567 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Who uses green marker pens on their CDs?
Completely OT, but when I was a kid, my Dad had a 78 which when played would give you a commentary of a horse race. The thing was that each time you played it a different horse would win It actually had 6 concentric grooves cut into it, and it was therefore random which groove the pickup would fall into when placed on the record. I loved that disc, but then I was only a kid. -- bigfool1956 David Ayers Music is what counts, hifi just helps us enjoy it more bigfool1956's Profile: http://forums.slimdevices.com/member.php?userid=13782 View this thread: http://forums.slimdevices.com/showthread.php?t=44567 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Who uses green marker pens on their CDs?
bigfool1956;278752 Wrote: I do notice that tracks near the end of a long CD tend to have more problems than others. As these tracks are on the outside of the CD, I assume that is due to warping. Good observation, I've noticed this too. I had assumed it was due to a slightly off-balance CD that was wobbling. The wobble would be more pronounced at the outer edge. There was an early MythBusters episode where they spun a CD in a router - the high-speed camera showed that the wobble was so pronounced the CD was literally bending into a wave shape at the outer edge. This probably happens on all CDs to a much lesser degree. You can even hear an out-of-balance disc, it causes the drive to become noisier as it's working harder to spin it and trying harder to keep the speed constant. A bit of trivia, way back when I remember seeing the CD single for Green Day's -Brain Stew/Jaded-. It was shaped like a brain! Obviously out-of-balance, and there was a prominent warning that it may not play in all players. I should have gotten it just for collector's value... -- Mark Lanctot Mark Lanctot's Profile: http://forums.slimdevices.com/member.php?userid=2071 View this thread: http://forums.slimdevices.com/showthread.php?t=44567 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Who uses green marker pens on their CDs?
bigfool1956 wrote: LPs are circular lumps of plastic, pressed out at speed, and subject to warps, air bubbles, non-concentricity, and sometimes not being circular. CDs are circular lumps of plastic... pressed out at speed and subject to all the stuff of an LP. They are pressed from warm plastic. I'm having a really hard time seeing where there is any stress as mentioned up thread. I do notice that tracks near the end of a long CD tend to have more problems than others. As these tracks are on the outside of the CD, I assume that is due to warping. Could be do to many things. Sometimes they cheat on the spacing to squeeze more spiral turns in (there is only one spiral on a CD). -- Pat Farrell http://www.pfarrell.com/ ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Who uses green marker pens on their CDs?
Oh yes, so there is. I might even have it in my collection. Sadly one day I sat on my Dad's 78 :( -- bigfool1956 David Ayers Music is what counts, hifi just helps us enjoy it more bigfool1956's Profile: http://forums.slimdevices.com/member.php?userid=13782 View this thread: http://forums.slimdevices.com/showthread.php?t=44567 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Audiophile Fuses!
If I could return to the topic without being flamed as a pyromaniac ;o) I see no-one has ventured an opinion on why expensive and usually very heavy gauge plugs and cables are a good idea when one phase of the mains has to travel through a teeny tiny fuse...thus undoing all the good work of that chunky cable. -- Phil Leigh You want to see the signal path BEFORE it gets onto a CD/vinyl...it ain't what you'd call minimal...SB3+Stontronics PSU - Altmann JISCO/UPCI - TACT RCS 2.2X with Good Vibrations S/W - MF X-DAC V3/X-PSU/X-10 buffer (Audiocomm full mods)- Linn 5103 - Linn Aktiv 5.1 system (6x LK140's, ESPEK/TRIKAN/KATAN/SEIZMIK 10.5), Townsend Supertweeters, Kimber Chord cables Phil Leigh's Profile: http://forums.slimdevices.com/member.php?userid=85 View this thread: http://forums.slimdevices.com/showthread.php?t=44602 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Audiophile Fuses!
Phil Leigh;278772 Wrote:
I see no-one has ventured an opinion on why expensive and usually very
heavy gauge plugs and cables are a good idea ...
In the same vein, there are other 'weak' links in the chain. As I'm
currently putting together a DIY speaker kit, I couldn't help wondering
about the path through the crossover, for instance ('very' thin
component wires compared to the speaker cable), and the wires in the
drivers themselves ('fairly' thin in the bass driver, 'extremely' thin
in the tweeters). I know the fat speaker cables are needed to carry
the power for the bass drivers, but if they are advocated for good high
frequency response, for example, where does that leave the literally
hair-like wires that go from the tweeter terminals to the tweeter coil?
Are they just so short that they don't matter?
--
chill
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Re: [SlimDevices: Audiophiles] Audiophile Fuses!
chill;278782 Wrote: where does that leave the literally hair-like wires that go from the tweeter terminals to the tweeter coil? Negligible skin effect? . -- haunyack Transporter - BK 200.2 - Vandersteen 3A Signature C.G. Conn New York Wonder haunyack's Profile: http://forums.slimdevices.com/member.php?userid=9721 View this thread: http://forums.slimdevices.com/showthread.php?t=44602 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Beresford 7510 MK V and Sb2
Deaf Cat;220595 Wrote: So would one possibly consider this little dac a better performer than a dac in an Arcam AV reciever... Personal choice I know, but...any comments? This is an interesting question. I currently own an Arcam AVR300 surroundreceiver. One of the things about this is that when operating in Stereo Direct mode, every digital circuit is turned off, and it acts as a very good analog amplifier (or preamplifier as I have Midgard Audio Oberon ICEpower-based monoblock power amps to my front speakers). When using digital spdif input on the Arcam AVR300, I find the backdrop a little less black, which means slightly less depth and dynamics when running Stereo PCM compared to a good analog input and Stereo Direct. I have now ordered the Beresford 7510 mk6/3 (not much of a risk, given its price) and will test if this is good enough to be better than the Stereo PCM mode with digital input on the Arcam. We'll see... -- roffe roffe's Profile: http://forums.slimdevices.com/member.php?userid=15608 View this thread: http://forums.slimdevices.com/showthread.php?t=37568 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Who uses green marker pens on their CDs?
bigfool1956;278771 Wrote: Sadly one day I sat on my Dad's 78 :( I can remember as a child using my mother's vintage 78 collection as frisbees. Ooh, did that warm ny buns for awhile. . -- haunyack Transporter - BK 200.2 - Vandersteen 3A Signature C.G. Conn New York Wonder haunyack's Profile: http://forums.slimdevices.com/member.php?userid=9721 View this thread: http://forums.slimdevices.com/showthread.php?t=44567 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Audiophile Fuses!
pfarrell;278537 Wrote: Short circuiting fuses is not just insanely dangerous, it violates the law, common sense, and can burn down your house and your neighbors. There has to be another way. Its immoral to tell people to short out a fuse. Also just to point out if your house burns down and they discover the cause of the house burning down is due to YOU short-circuiting your equipment. Guess what, no money for you. Seriously though guys think about how much a fuse on the mains can affect sound quality. I know many of you have golden ears but really, if the fuse contacts are good then it should not be noticeable. Soldier the fuse in place if concern, that could help maybe. But do not short it. -- m1abrams m1abrams's Profile: http://forums.slimdevices.com/member.php?userid=850 View this thread: http://forums.slimdevices.com/showthread.php?t=44602 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Audiophile Fuses!
Phil Leigh;278772 Wrote: If I could return to the topic without being flamed as a pyromaniac ;o) I see no-one has ventured an opinion on why expensive and usually very heavy gauge plugs and cables are a good idea when one phase of the mains has to travel through a teeny tiny fuse...thus undoing all the good work of that chunky cable. Simple math really. (Note I am not saying highend cables are worth it). V=I/R. Bigger cable less resistance per DISTANCE. Fuse is very very short distance compared to the power cord. So the voltage drop cause by the fuse is going to be much less of a factor than the voltage drop caused by the power cord. Voltage drop is the biggest noticeable item people hear when the are power an unregulated amp (most highend amps). Volume always appears to sound better ;). -- m1abrams m1abrams's Profile: http://forums.slimdevices.com/member.php?userid=850 View this thread: http://forums.slimdevices.com/showthread.php?t=44602 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Audiophile Fuses!
Something doesn't add up that's for sure... maybe we should be using the thinnest cables we can find that can handle the current? -- Phil Leigh You want to see the signal path BEFORE it gets onto a CD/vinyl...it ain't what you'd call minimal...SB3+Stontronics PSU - Altmann JISCO/UPCI - TACT RCS 2.2X with Good Vibrations S/W - MF X-DAC V3/X-PSU/X-10 buffer (Audiocomm full mods)- Linn 5103 - Linn Aktiv 5.1 system (6x LK140's, ESPEK/TRIKAN/KATAN/SEIZMIK 10.5), Townsend Supertweeters, Kimber Chord cables Phil Leigh's Profile: http://forums.slimdevices.com/member.php?userid=85 View this thread: http://forums.slimdevices.com/showthread.php?t=44602 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Audiophile Fuses!
Phil Leigh;278772 Wrote: I see no-one has ventured an opinion on why expensive and usually very heavy gauge plugs and cables are a good idea when one phase of the mains has to travel through a teeny tiny fuse...thus undoing all the good work of that chunky cable. I did in http://forums.slimdevices.com/showpost.php?p=278614postcount=12 As others have pointed out, the fuse is short. One could argue that resistance is really measures in x milliohms per foot for any vaguely useful cable, so if the speaker cable is marginal and long, it might make a difference in voltage drop. The fuse element is typically short, fractions of an inch. But once the cable is long, its resistance is big enough then the resistance of the fuse drops out of the equation. In general, there is no point in an four-OUGHT cable when there is a 18 gauge fuse in line. -- pfarrell Pat http://www.pfarrell.com/music/slimserver/slimsoftware.html pfarrell's Profile: http://forums.slimdevices.com/member.php?userid=200 View this thread: http://forums.slimdevices.com/showthread.php?t=44602 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Audiophile Fuses!
m1abrams;278802 Wrote: ...unregulated amp (most highend amps)... Is that really true? Crikey. I would have thought good power regulation was a must. Shows what I know. So without a regulator, is there a direct relationship between the mains voltage and the output power? If so, then you could have a point about relative volume. PS V=IR -- chill chill's Profile: http://forums.slimdevices.com/member.php?userid=10839 View this thread: http://forums.slimdevices.com/showthread.php?t=44602 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Audiophile Fuses!
m1abrams;278802 Wrote: Simple math really. (Note I am not saying highend cables are worth it). V=I/R. Bigger cable less resistance per DISTANCE. Fuse is very very short distance compared to the power cord. So the voltage drop cause by the fuse is going to be much less of a factor than the voltage drop caused by the power cord. Voltage drop is the biggest noticeable item people hear when the are power an unregulated amp (most highend amps). Volume always appears to sound better ;). I'm familiar with Mr. Ohm Then shorter ordinary cables should outperform longer more exotic cables? Sounds like a cheap upgrade to me! But, which is best? short mains cables and longer speaker cables? Also, it isn't going to be a straight DC equation since the mains is feeding a transformer primary with AC and thus has some reactance to deal with... -- Phil Leigh You want to see the signal path BEFORE it gets onto a CD/vinyl...it ain't what you'd call minimal...SB3+Stontronics PSU - Altmann JISCO/UPCI - TACT RCS 2.2X with Good Vibrations S/W - MF X-DAC V3/X-PSU/X-10 buffer (Audiocomm full mods)- Linn 5103 - Linn Aktiv 5.1 system (6x LK140's, ESPEK/TRIKAN/KATAN/SEIZMIK 10.5), Townsend Supertweeters, Kimber Chord cables Phil Leigh's Profile: http://forums.slimdevices.com/member.php?userid=85 View this thread: http://forums.slimdevices.com/showthread.php?t=44602 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Who uses green marker pens on their CDs?
I manufacture plastic asnd perspex products , any HEAT processing or thermoforming induces incredible stresses in certain plastics , notably those with short polymer chains (read cheaper materials) like polyprop , extruded pex and polycarbonates. Its pretty easy to see under polarised light. Vinyl is not as affected The only way to reduce these is by annealing, and that is to heat up the materials to temps below their thermosplatic points for quite long times and allow to air cool. You could put your cds in a thermofan oven at 70 degrees c for an hour or so and let em cool if you really wanted to. I also laser cut and engrave plastics , you should see what THAT does to em in regards to stress!! -- Rodney_Gold Sb3/Z-sys RDP1/meridian DSP5500's TP/X-cans v3/Senns 650's TP/TACT 2.0/SCM 50a's TP/Meridian DSP5000's The nicest thing about smacking your head against the wall is...the feeling you get when you stop Rodney_Gold's Profile: http://forums.slimdevices.com/member.php?userid=14618 View this thread: http://forums.slimdevices.com/showthread.php?t=44567 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Audiophile Fuses!
Phil Leigh;278812 Wrote: I'm familiar with Mr. Ohm Then shorter ordinary cables should outperform longer more exotic cables? Sounds like a cheap upgrade to me! But, which is best? short mains cables and longer speaker cables? Also, it isn't going to be a straight DC equation since the mains is feeding a transformer primary with AC and thus has some reactance to deal with... Of course it is not a straight DC equation, DC is just simpler because you do not need to involve Mr. Calculus. And the AC parts are affected by things like capacitance and inductance. Inductance in a 2 inch fuse is for the most part nil. Capacitance could be an issue because of the contacts, however cleanly solder the fuse in place and that solves much of that issue. People who like simple audio amp designs like unregulated amps, however they need to also invest in decent line conditioning (here it actually does make a difference). In the car stereo arena this is pretty much the norm for any high end car amp, and is why they put a lot of effort into upgrading the power source on the car (alternator not the battery). -- m1abrams m1abrams's Profile: http://forums.slimdevices.com/member.php?userid=850 View this thread: http://forums.slimdevices.com/showthread.php?t=44602 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Audiophile Fuses!
m1abrams;278832 Wrote: DC is just simpler because you do not need to involve Mr. Calculus. Gee, I always thought it was Sir Issac. A lot of this makes zero sense to me. Way back when dinosaurs roamed, I had a Dynaco ST120. It has two beer can sized caps in the power supply so that the power rails could keep making music without worrying about the draw from the wall plate. Even the digital cannons on the 1812 demo CD don't have a long continuous draw. Even at 11. And if they did, it would blow the fuse. Wrist sized power cords just seem like boa constrictors to me. YMMV -- pfarrell Pat http://www.pfarrell.com/music/slimserver/slimsoftware.html pfarrell's Profile: http://forums.slimdevices.com/member.php?userid=200 View this thread: http://forums.slimdevices.com/showthread.php?t=44602 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Stereophile Article: MP3 vs AAC vs FLAC vs CD
Phil Leigh;278731 Wrote: But what about the CRC in the Ethernet frame? If I remember correctly, this failure was caused by switch packet buffer memory corruption. Switch would get a packet, check the CRC, store it in memory sans CRC, the bad ram in the switch would corrupt the packets, and then send the packet out with a new CRC. I think the CRC removal from the packet was due to the packets coming in with 802.1q vlan tags that needed to be removed, so the CRC had to be re-calculated anyway. -- SuperQ SuperQ's Profile: http://forums.slimdevices.com/member.php?userid=2139 View this thread: http://forums.slimdevices.com/showthread.php?t=44532 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Audiophile Fuses!
pfarrell;278811 Wrote: I did in http://forums.slimdevices.com/showpost.php?p=278614postcount=12 As others have pointed out, the fuse is short. One could argue that resistance is really measures in x milliohms per foot for any vaguely useful cable, so if the speaker cable is marginal and long, it might make a difference in voltage drop. The fuse element is typically short, fractions of an inch. But once the cable is long, its resistance is big enough then the resistance of the fuse drops out of the equation. In general, there is no point in an four-OUGHT cable when there is a 18 gauge fuse in line. Sorry Pat - I missed that bit! That's kind of what I was getting at. Why do we bother with massive cables over short (like say 3 feet) distances? The resistance is going to be lower than I can measure on my Fluke. -- Phil Leigh You want to see the signal path BEFORE it gets onto a CD/vinyl...it ain't what you'd call minimal...SB3+Stontronics PSU - Altmann JISCO/UPCI - TACT RCS 2.2X with Good Vibrations S/W - MF X-DAC V3/X-PSU/X-10 buffer (Audiocomm full mods)- Linn 5103 - Linn Aktiv 5.1 system (6x LK140's, ESPEK/TRIKAN/KATAN/SEIZMIK 10.5), Townsend Supertweeters, Kimber Chord cables Phil Leigh's Profile: http://forums.slimdevices.com/member.php?userid=85 View this thread: http://forums.slimdevices.com/showthread.php?t=44602 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Stereophile Article: MP3 vs AAC vs FLAC vs CD
SuperQ;278862 Wrote: If I remember correctly, this failure was caused by switch packet buffer memory corruption. Switch would get a packet, check the CRC, store it in memory sans CRC, the bad ram in the switch would corrupt the packets, and then send the packet out with a new CRC. I think the CRC removal from the packet was due to the packets coming in with 802.1q vlan tags that needed to be removed, so the CRC had to be re-calculated anyway. OK - but I refuse to become paranoid over the possibility that once every ten years I might get a corrupt TCP packet to my SB :o). I worry more about being hit by gamma rays or meteors (or bits of old spacehips...actually that is a real possibility) -- Phil Leigh You want to see the signal path BEFORE it gets onto a CD/vinyl...it ain't what you'd call minimal...SB3+Stontronics PSU - Altmann JISCO/UPCI - TACT RCS 2.2X with Good Vibrations S/W - MF X-DAC V3/X-PSU/X-10 buffer (Audiocomm full mods)- Linn 5103 - Linn Aktiv 5.1 system (6x LK140's, ESPEK/TRIKAN/KATAN/SEIZMIK 10.5), Townsend Supertweeters, Kimber Chord cables Phil Leigh's Profile: http://forums.slimdevices.com/member.php?userid=85 View this thread: http://forums.slimdevices.com/showthread.php?t=44532 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Audiophile Fuses!
Phil Leigh;278864 Wrote: Sorry Pat - I missed that bit! That's kind of what I was getting at. Why do we bother with massive cables over short (like say 3 feet) distances? The resistance is going to be lower than I can measure on my Fluke. And I will not argue on that one with you! I was just stating that a fuse can be much smaller gauge and not effect the larger conductor because it only effects a short distance. The size of cable needed is dependent on the distance of the cable. However splicing in a smaller piece for a short distance does not cause a bottleneck it just increase the total Resistance a bit of the line which would increase the heat. However that section still needs to be able to physically handle the heat caused by I^2/R which if I is large small conductors can not dissipate the heat as well as large conductors. -- m1abrams m1abrams's Profile: http://forums.slimdevices.com/member.php?userid=850 View this thread: http://forums.slimdevices.com/showthread.php?t=44602 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Audiophile Fuses!
OK that all makes sense. Now back to fuses... Have you ever noticed how the end caps of many fuses look quite corroded over time? As suggested we could solder them in...or we could clean them every 6 months with a suitable abrasive (and then treat with De-Oxit or whatever) for a better connection... -- Phil Leigh You want to see the signal path BEFORE it gets onto a CD/vinyl...it ain't what you'd call minimal...SB3+Stontronics PSU - Altmann JISCO/UPCI - TACT RCS 2.2X with Good Vibrations S/W - MF X-DAC V3/X-PSU/X-10 buffer (Audiocomm full mods)- Linn 5103 - Linn Aktiv 5.1 system (6x LK140's, ESPEK/TRIKAN/KATAN/SEIZMIK 10.5), Townsend Supertweeters, Kimber Chord cables Phil Leigh's Profile: http://forums.slimdevices.com/member.php?userid=85 View this thread: http://forums.slimdevices.com/showthread.php?t=44602 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Stereophile Article: MP3 vs AAC vs FLAC vs CD
opaqueice;278296 Wrote: Where in the world did that come from? is misleading to the point of being just wrong. MP3 files play at exactly the same rate as CDs - for example you could simply decode one into a 16/44.1 WAV file and then play it, and that's actually what at least some (if not all) decoders/players do. That semantic quibble aside, the underlying logic is more seriously wrong, because by precisely the same reasoning you could say a FLAC file plays at less than half the rate of a CD..., and yet FLAC and WAV playback are identical. Actually that is not wrong, you are confusing data rate with sample rate and bit depth. Data rate is how much data per second is moved which for uncompressed is exactly 16bits * 2 * 44100. He was referring to the mp3 data rate, not the audio signal it is converted to. Yes a FLAC file has a data rate of about half of pcm. -- m1abrams m1abrams's Profile: http://forums.slimdevices.com/member.php?userid=850 View this thread: http://forums.slimdevices.com/showthread.php?t=44532 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Audiophile Fuses!
Phil Leigh;278886 Wrote: OK that all makes sense. Now back to fuses... Have you ever noticed how the end caps of many fuses look quite corroded over time? As suggested we could solder them in...or we could clean them every 6 months with a suitable abrasive (and then treat with De-Oxit or whatever) for a better connection... Maybe even use a little non-corrosive lacquer over the cap AND clip to seal them yet still be removable, although with a bit more force. Not sure if something like nail polish would be damaging to either the metal or circuit board. -- m1abrams m1abrams's Profile: http://forums.slimdevices.com/member.php?userid=850 View this thread: http://forums.slimdevices.com/showthread.php?t=44602 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Audiophile Fuses!
As suggested we could solder them in...or we could clean them every 6 months with a suitable abrasive (and then treat with De-Oxit or whatever) for a better connection... Maybe even use a little non-corrosive lacquer over the cap AND clip to seal them yet still be removable, although with a bit more force. I would think that soldering them in is more trouble than its worth. But then again, this is audiophiles. Rather than lacquer, how about some spray on conformal coating. Of course, they we'd have to do blind testing of conformal coatings. ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Audiophile Deathmatch: Monster Cables vs. A Coat Hanger!
Pale Blue Ego;274919 Wrote: Coat hanger? Try these: www.anticables.com never mind the hype and resentment around cable questions, I did replace all my cabling and interconnects, gradually, with paul speltz anticables, and yes, they are better than the name-brand stuff they displaced: and by better I mean they brought improved sound to my ears. oh, and before I forget: they are also cheaper ;-) -- melomaniac melomaniac's Profile: http://forums.slimdevices.com/member.php?userid=12140 View this thread: http://forums.slimdevices.com/showthread.php?t=44124 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Audiophile Fuses!
Pat Farrell;278904 Wrote: As suggested we could solder them in...or we could clean them every 6 months with a suitable abrasive (and then treat with De-Oxit or whatever) for a better connection... Maybe even use a little non-corrosive lacquer over the cap AND clip to seal them yet still be removable, although with a bit more force. I would think that soldering them in is more trouble than its worth. But then again, this is audiophiles. Rather than lacquer, how about some spray on conformal coating. Of course, they we'd have to do blind testing of conformal coatings. Actually you know what would be super simple that I did not think of, http://www.tessco.com/products/displayProductInfo.do?sku=437469eventPage=1 It is made for this purpose! Just be careful not to short nearby contacts with it. -- m1abrams m1abrams's Profile: http://forums.slimdevices.com/member.php?userid=850 View this thread: http://forums.slimdevices.com/showthread.php?t=44602 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Beresford 7510 MK V and Sb2
Just a quick note to say - several months on now - I'm still really happy with my DAC purchase. It cost next to nothing and has really made a huge difference in my enjoyment of music. Fortunately I'm not the type that wants to endlessly spend and explore optionsI've reached a level with my system where I'm more than happy with itwhen given well recorded material it's sounds beautiful. If only mastering were by and large done betterthat's the only real remaining problem I have. There's such a huge gap between the well recorded and mastered stuff and the rest, it's amazing. And unfortunately, the majority of music I listen to falls in the badly recorded/mastered category. -- bossanova808 bossanova808's Profile: http://forums.slimdevices.com/member.php?userid=619 View this thread: http://forums.slimdevices.com/showthread.php?t=37568 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Stereophile Article: MP3 vs AAC vs FLAC vs CD
m1abrams;278896 Wrote: He was referring to the mp3 data rate, not the audio signal it is converted to. Yes a FLAC file has a data rate of about half of pcm. I know that's what he -meant- to say - but it's not what he said. Furthermore (and it sounds like you agree) the implication he drew from it is false. The size of the file is not directly related to the quality of the sound it produces, which is obvious from the fact that FLAC and WAV produce identical outputs despite being different sizes, or from the fact that I could decode a 64kbps MP3 to a full-sized WAV file. -- opaqueice opaqueice's Profile: http://forums.slimdevices.com/member.php?userid=4234 View this thread: http://forums.slimdevices.com/showthread.php?t=44532 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Stereophile Article: MP3 vs AAC vs FLAC vs CD
m1abrams;278896 Wrote: He was referring to the mp3 data rate, not the audio signal it is converted to. Yes a FLAC file has a data rate of about half of pcm. And yet its output is identical to the WAV it came from. So the statement is both imprecise technically, and, more importantly, the implication he's trying to draw from it is just false. You can't measure audio quality by the size of the audio file. -- opaqueice opaqueice's Profile: http://forums.slimdevices.com/member.php?userid=4234 View this thread: http://forums.slimdevices.com/showthread.php?t=44532 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
