Re: [SlimDevices: Audiophiles] Power supply (technical)
Skunk;189170 Wrote: Only if you underpower the Sb3 to disable the display and analog circuitry :) http://forums.slimdevices.com/showthread.php?t=32398 I seriously doubt that would make SPDIF, problem free. Especially not in the general sense. -- P Floding No, I didn't ABX it. And I won't even if you ask me. (Especially not if you ask me.) P Floding's Profile: http://forums.slimdevices.com/member.php?userid=2932 View this thread: http://forums.slimdevices.com/showthread.php?t=33669 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Power supply (technical)
Skunk;188934 Wrote: Robin was pointing out that you wouldn't be adding anything redundant, like sending analog to a receiver that does AD|DSP|DA. Adding a benchmark is completely different in that you still only have one digital to analog conversion. Also, its marketing material suggests any digital redundancy that might be added to the signal would be easily overcome. I thought RB made a valid and craftily worded point. Not sure what you are trying to say. That SPDIF is problem free? -- P Floding No, I didn't ABX it. And I won't even if you ask me. (Especially not if you ask me.) P Floding's Profile: http://forums.slimdevices.com/member.php?userid=2932 View this thread: http://forums.slimdevices.com/showthread.php?t=33669 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Power supply (technical)
P Floding;189163 Wrote: Not sure what you are trying to say. That SPDIF is problem free? Only if you underpower the Sb3 to disable the display and analog circuitry :) http://forums.slimdevices.com/showthread.php?t=32398 -- Skunk Skunk's Profile: http://forums.slimdevices.com/member.php?userid=2685 View this thread: http://forums.slimdevices.com/showthread.php?t=33669 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Power supply (technical)
I disagree with Pat Farrell, when he says There can be no audio quality improvement in adding anything to the audio chain I conneted the SB3 to a DAC, the Benchmark DAC1, and the improvement in quality of sound was remarkable! Please try it! Regards Joe Gueron Pat Farrell;188363 Wrote: Jitterbug wrote: As for connecting the SB3 directly to a power amp, it would be better (for audio quality and safety reasons) to use some type type of preamp. Many here use passive preamps which can be inexpensive. I beg to differ. There can be no audio quality improvement in adding anything to the audio chain. And there have been many threads on direct connection of a SqueezeBox to an amp. With proper gain matching, there is no safety issue. You may need attenuators, Sean Adams pointed out some high quality and reasonably priced models. Audiophile passive preamps tend to be very pricey for what the do, which is nearly nothing by switching. To be direct. You do not _need_ a preamp when using a SqueezeBox or Transporter. -- Pat http://www.pfarrell.com/music/slimserver/slimsoftware.html -- jgueron jgueron's Profile: http://forums.slimdevices.com/member.php?userid=9483 View this thread: http://forums.slimdevices.com/showthread.php?t=33669 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Power supply (technical)
jgueron wrote: I disagree with Pat Farrell, when he says There can be no audio quality improvement in adding anything to the audio chain I connected the SB3 to a DAC, the Benchmark DAC1, and the improvement in quality of sound was remarkable! You are correct. I was a bit sloppy in my wording. I also added a Benchmark DAC1 to the output of my SqueezeBox, and it was wonderful. But I still say that adding a box, such as a preamp, does not improve the signal. There are times, when specialized boxes such as room correction devices, can help change the signal in 'good' ways, but they are not improving the signal, just your listening experience. Please try it! I have not tried the Benchmark with my new Transporter. I'm happy with the Transporter. -- Pat http://www.pfarrell.com/music/slimserver/slimsoftware.html ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Power supply (technical)
Pat Farrell;188819 Wrote: jgueron wrote: I disagree with Pat Farrell, when he says There can be no audio quality improvement in adding anything to the audio chain I connected the SB3 to a DAC, the Benchmark DAC1, and the improvement in quality of sound was remarkable! You are correct. I was a bit sloppy in my wording. I also added a Benchmark DAC1 to the output of my SqueezeBox, and it was wonderful. But I still say that adding a box, such as a preamp, does not improve the signal. There are times, when specialized boxes such as room correction devices, can help change the signal in 'good' ways, but they are not improving the signal, just your listening experience. Please try it! I have not tried the Benchmark with my new Transporter. I'm happy with the Transporter. -- Pat http://www.pfarrell.com/music/slimserver/slimsoftware.html A buffer, such as a pre-amp may well improve sound if it presents a lower impedance to the next stage (normally a power amp). A passive pre may instead degrade sound by makeing the audio signal dependent on the input impedance of the next stage. -- P Floding No, I didn't ABX it. And I won't even if you ask me. (Especially not if you ask me.) P Floding's Profile: http://forums.slimdevices.com/member.php?userid=2932 View this thread: http://forums.slimdevices.com/showthread.php?t=33669 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Power supply (technical)
amcluesent;188356 Wrote: (hence the ferrite-core on the wire to suppress this) Actually, it suppresses EMI from coming _out_ of the box. -- seanadams seanadams's Profile: http://forums.slimdevices.com/member.php?userid=3 View this thread: http://forums.slimdevices.com/showthread.php?t=33669 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Power supply (technical)
seanadams;188843 Wrote: Actually, it suppresses EMI from coming _out_ of the box. Tee Hee, M. -- mudlark SB3CyrusDACXPreXvs260AKEFiQ7 cable Avondale server Kubuntu Edgy, linkstation for storage. DIY SB3 3A linear power supply. mudlark's Profile: http://forums.slimdevices.com/member.php?userid=7151 View this thread: http://forums.slimdevices.com/showthread.php?t=33669 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Power supply (technical)
jgueron wrote: I disagree with Pat Farrell, when he says There can be no audio quality improvement in adding anything to the audio chain I conneted the SB3 to a DAC, the Benchmark DAC1, and the improvement in quality of sound was remarkable! Please try it! Ah, but strictly speaking, that's not adding anything to the audio chain - it's adding to the *digital* chain, and replacing part of the analogue chain. R. ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Power supply (technical)
Robin Bowes;188857 Wrote: jgueron wrote: I disagree with Pat Farrell, when he says There can be no audio quality improvement in adding anything to the audio chain I conneted the SB3 to a DAC, the Benchmark DAC1, and the improvement in quality of sound was remarkable! Please try it! Ah, but strictly speaking, that's not adding anything to the audio chain - it's adding to the *digital* chain, and replacing part of the analogue chain. R. In that case, strictly speaking, you can only add things to the audio chain before the microphone and after the loudspeakers. It's not as if an electrical signal is sound. -- P Floding No, I didn't ABX it. And I won't even if you ask me. (Especially not if you ask me.) P Floding's Profile: http://forums.slimdevices.com/member.php?userid=2932 View this thread: http://forums.slimdevices.com/showthread.php?t=33669 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Power supply (technical)
P Floding;188928 Wrote: In that case, strictly speaking, you can only add things to the audio chain before the microphone and after the loudspeakers. It's not as if an electrical signal is sound. Robin was pointing out that you wouldn't be adding anything redundant, like sending analog to a receiver that does AD|DSP|DA. Adding a benchmark is completely different in that you still only have one digital to analog conversion. Also, its marketing material suggests any digital redundancy that might be added to the signal would be easily overcome. I thought RB made a valid and craftily worded point. -- Skunk Skunk's Profile: http://forums.slimdevices.com/member.php?userid=2685 View this thread: http://forums.slimdevices.com/showthread.php?t=33669 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Power supply (technical)
Skunk;188415 Wrote: There is a very well done wiki here on connecting to a power amp which covers any safety issues, but you'll have to search. http://wiki.slimdevices.com/index.cgi?ConnectToPowerAmp -- Mark Lanctot Mark Lanctot's Profile: http://forums.slimdevices.com/member.php?userid=2071 View this thread: http://forums.slimdevices.com/showthread.php?t=33669 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Power supply (technical)
gian;188349 Wrote: Hello, I know very little about electricity, so please forgive my silly questions. I have read that upgrading the power supply benefits the SB's sound. Now, just for curiosity sake, how can Volts have a sound? They're not silly, but you've combined two questions into one that's harder to answer. Volts may not have a sound, but you want mostly DC volts with little ripple and good regulation. Pure DC to the Squeezebox won't be the end of the road however, because there are separate supplies and regulators inside that have their own specs, likely to have more of an effect on the overall sound than the external supply. Would the original power supply sound better if hooked on a computer ups battery? You could try it. Mine is hooked to one now, but I didn't have trouble with interference before/after. I'll probably just put a surge protector like before. Also, aside from the fact that the SB's volume control is not recommended for audiophile listening, Isn't it? The transporter has three internal jumpers to set the output level, which could be thought of as having an analog volume control with three settings, e.g. 9,12,and 3 O'clock. Once the gains are somewhat matched it can then be more safely used as an audiophile volume control (without going too low on the scale). Using resistors as voltage dividers or jumpers in Transporter is less convenient that stepped attenuators, but unless I'm mistaken proves that the digital volume control is intended for audiophile use. I personally wouldn't feel comfortable not being able to use 100 on the Sb for critical listening, if for example that was 'loud loud' with my fixed attenuator setup and I needed to be a quiet audiophile. There is a very well done wiki here on connecting to a power amp which covers any safety issues, but you'll have to search. -- Skunk Skunk's Profile: http://forums.slimdevices.com/member.php?userid=2685 View this thread: http://forums.slimdevices.com/showthread.php?t=33669 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Power supply (technical)
The SB3 has an external switched-mode PSU (http://en.wikipedia.org/wiki/Switched-mode_power_supply) which some claim can have a high-frequency noise on the 5V output (hence the ferrite-core on the wire to suppress this), This noise could affect the DAC in the SB3. -- amcluesent amcluesent's Profile: http://forums.slimdevices.com/member.php?userid=10286 View this thread: http://forums.slimdevices.com/showthread.php?t=33669 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Power supply (technical)
As for connecting the SB3 directly to a power amp, it would be better (for audio quality and safety reasons) to use some type type of preamp. Many here use passive preamps which can be inexpensive. -- Jitterbug Jitterbug's Profile: http://forums.slimdevices.com/member.php?userid=4955 View this thread: http://forums.slimdevices.com/showthread.php?t=33669 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Power supply (technical)
Jitterbug wrote: As for connecting the SB3 directly to a power amp, it would be better (for audio quality and safety reasons) to use some type type of preamp. Many here use passive preamps which can be inexpensive. I beg to differ. There can be no audio quality improvement in adding anything to the audio chain. And there have been many threads on direct connection of a SqueezeBox to an amp. With proper gain matching, there is no safety issue. You may need attenuators, Sean Adams pointed out some high quality and reasonably priced models. Audiophile passive preamps tend to be very pricey for what the do, which is nearly nothing by switching. To be direct. You do not _need_ a preamp when using a SqueezeBox or Transporter. -- Pat http://www.pfarrell.com/music/slimserver/slimsoftware.html ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Power supply (technical)
No real disagrement here. By improved audio quality, I was referring to using an analogue volume control rather than the squeezebox one. To me, a minimal passive preamp is just an attenuator. I use a DACT model built into a power amp with no other cicuitry. There are certainly cheaper solutions around. -- Jitterbug Jitterbug's Profile: http://forums.slimdevices.com/member.php?userid=4955 View this thread: http://forums.slimdevices.com/showthread.php?t=33669 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
