Re: [SlimDevices: Audiophiles] Transporter next model?
Except that the current implementations of HDMI have much higher jitter figures than SPDIF. In the Feb 2009 edition of the Hi-fi News magazine Paul Miller measured the following jitter results for a few A/V amplifiers: Denon AVR-3803A --- SPDIF: 560psec HDMI: 3700psec Onkyo TX-NR906 --- SPDIF: 470psec HDMI: 3860psec Pioneer SC-LX81 --- SPDIF: 37psec HDMI: 50psec Yamaha RX-V3900 --- SPDIF: 183psec HDMI: 7660psec And no, those figures for the Pioneer aren't typos - it just shows what can be done when implemented correctly! Unfortunately the Denon and Onkyo amps were rated to sound the best, but I believe that had more to do with their amplifier sections than the jitter and pre-amplifier/processor sections. -- Jaco XP Wi-fi Transporter SPDIF Denon AVR-3808 Linkwitz Labs Orion+ Jaco's Profile: http://forums.slimdevices.com/member.php?userid=10726 View this thread: http://forums.slimdevices.com/showthread.php?t=59207 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Improving quality of original Squeezebox
Hi Brian, Yes, that is true - I just didn't realize that the equivalent series inductance (ESL) would be so high for the electrolytic that it had an effect below 20kHz. I found this document showing the effect of ESL in a very nice graphical way (http://www.murata.com/emc/knowhow/pdfs/te04ea-1/12to16e.pdf). One would expect the designers to at least select the components better for this effect not to matter that much... Regards Jaco -- Jaco XP Wi-fi Transporter SPDIF Denon AVR-3808 Linkwitz Labs Orion+ Jaco's Profile: http://forums.slimdevices.com/member.php?userid=10726 View this thread: http://forums.slimdevices.com/showthread.php?t=58554 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Improving quality of original Squeezebox
Yes, I'm also confused. Connecting capacitors in parallel certainly does not amount to bypassing the original capacitor! If you have two capacitors with capacitances C1 and C2, the resulting capacitance after connecting them in parallel will be Ctotal = C1 + C2. So, I'm also wondering how will a total capacitance of 110uF + 0.1uF = 110.1uF could make such a large audible difference??? So please provide a picture or a more detailed description of how you bypassed the original capacitors! -- Jaco XP Wi-fi Transporter SPDIF Denon AVR-3808 Linkwitz Labs Orion+ Jaco's Profile: http://forums.slimdevices.com/member.php?userid=10726 View this thread: http://forums.slimdevices.com/showthread.php?t=58554 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
[SlimDevices: Audiophiles] Trasnporter display flashes while idle
I've been using my Transporter for almost a year now without experiencing any problems. However, lately whenever my Transporter is idle - either not playing any music or switched off with the display showing only the time - then both the displays flash brightly every 30 seconds or so. This happens irrespective of the brightness level. I've also determined that it isn't just a brightness flash since it is still visible with both the displays on their brightest. When the flash appears it happens simultaneously for both displays. It is too quick to see what is being displayed though. The strange thing is that it does not happen while I'm playing music through the Transporter. I've reset the Transporter (switching it on while pressing ADD button on the remote), but no luck. The problem still persists. Has anybody experienced a similar problem? At first I suspected it may be a hardware problem, but then it would also show while playing music. So my guess is it may be a firmware/software problem. Here is the information from my SqueezeCenter: Version: 7.3.1 - 24372 @ Fri Dec 19 17:56:44 PST 2008 Operating system: Windows XP - EN - cp1252 Platform Architecture: 586 Perl Version: 5.8.8 - MSWin32-x86-multi-thread MySQL Version: 5.0.22-community-nt Total Players Recognized: 1 And my Transporter information: Player Model: transporter Firmware: 71 Wireless Signal Strength: 83% Voltage: 234 Regards Jaco -- Jaco Jaco's Profile: http://forums.slimdevices.com/member.php?userid=10726 View this thread: http://forums.slimdevices.com/showthread.php?t=58443 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Trasnporter display flashes while idle
I've removed all remotes from the room and any possible source of IR or RF interference I can think of, but the problem still persists. Like clockwork the display flashes/glitches every 20 seconds when the Transporter is idle, but not while it is playing... -- Jaco Jaco's Profile: http://forums.slimdevices.com/member.php?userid=10726 View this thread: http://forums.slimdevices.com/showthread.php?t=58443 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Trasnporter display flashes while idle
I'm not so sure it is a hardware problem. Why would it behave like this only while the Transporter is not playing music. I can play music and the display is fine, then press pause and then the flashes will start happening every 20 seconds, press play again and the problem disappears... -- Jaco XP Wi-fi Transporter SPDIF Denon AVR-3808 Linkwitz Labs Orion+ Jaco's Profile: http://forums.slimdevices.com/member.php?userid=10726 View this thread: http://forums.slimdevices.com/showthread.php?t=58443 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Trasnporter display flashes while idle
I'm not sure if this is related, but I have noted the following behaviour quite regularly. When switching off my TP via the remote, either while it is playing or stopped, I would immediatley get the Date and Time screensaver which is correct. However, a while after that it will suddenly display the Now Playing screen (which is my screensaver for when playing) for a few seconds and then switch back to the Date and Time screensaver. It looks like switching off the TP does not cancel the timers for the playing/stopped screensavers, so when these timers trigger they suddenly show their associated screensaver, and then something realises that, oops, the TP is actually off, and then reverts back to the off display. Maybe there is something similar happening in my TP, but on a much shorter timescale which then results in the flash I perceive. So, if these disabling/enabling of these timers could be sorted out that may sort out the flashing behaviour too... -- Jaco XP Wi-fi Transporter SPDIF Denon AVR-3808 Linkwitz Labs Orion+ Jaco's Profile: http://forums.slimdevices.com/member.php?userid=10726 View this thread: http://forums.slimdevices.com/showthread.php?t=58443 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Powered Speakers Recommendations
I second the suggestions for the AVI ADM9.1. Here's an online review: http://www.computeraudiophile.com/avi-adm-9-1-review. Another good option is the Acoustic Energy AE22-04 actives. See here: http://www.acoustic-energy-pro.com/professional-speaker-range/index.asp. I haven't heard them myself, but they've been receiving good reviews in numerous hi-fi magazines. If you are willing the DIY route I can highly recommend the Linkwitz Lab's fully active speakers (see http://www.linkwitzlab.com/). I've built both the Pluto+ and the Orion+ speakers. The Orion+ speakers are the best sounding speakers I've heard in my system so far. -- Jaco Jaco's Profile: http://forums.slimdevices.com/member.php?userid=10726 View this thread: http://forums.slimdevices.com/showthread.php?t=54559 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] SB3 + Cambridge DacMagic ($400) Review
The Computer Audiophile has also posted a review recently. Here it is: http://www.computeraudiophile.com/Cambridge-Audio-DacMagic-Review -- Jaco Jaco's Profile: http://forums.slimdevices.com/member.php?userid=10726 View this thread: http://forums.slimdevices.com/showthread.php?t=53985 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Hi-Fi critric reveals their limited vision
Just to put things in perspective, here are some quotes from his column in the latest edition of HI-FI CHOICE (October 2007), titled History Lesson: Ripping a CD to the hard drive is quick and simple, and with the assistance of an audiophile-oriented streamer - such as the SB+ from UK specialist At-View - very good replay results can be obtained through a top quality hi-fi system. ...[snip]... After discharging the obligatory nit-picking of a serious hi-fi nut, the real strength of the SB+ lies in the sheer convenience and accessability that computer-based music storage brings to the party. ...[snip]... One reason why CD initially took off as a replacement for vinyl was because it brought full remote control convenience to the masses. Computer-based music storage and replay goes another major step along the same path, in allowing finger-tip access to one's entire music library. Even though I'll still seek out and spin vinyl for personal pleasure, there's no doubt in my mind that computers and servers represent the future of hi-fi for the majority of consumers. So, in my opinion he completely gets it... -- Jaco Jaco's Profile: http://forums.slimdevices.com/member.php?userid=10726 View this thread: http://forums.slimdevices.com/showthread.php?t=39438 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Empirical Audio Pace-Car Reclocker
Veggen;223180 Wrote: Exactly, but the Pace-Car does not. Empirical audio clearly demonstrates a lack of knowledge of the SB which does not give me much confidence in their product. Please do your homework people! The current PaceCar reclocker can be configured to support the following frequencies: 16-bit/44.1 kHz 24-bit/96 kHz 24-bit/192 kHz Note that 24-bit/48 kHz is not included in this list. Hence the statement about the 16-bit/44.1 kHz limitation of the SB3. And also, if you ask the owner of Empirical Audio nicely he might even oblige and provide you a 24-bit/48 kHz version of the PaceCar. Statements like the one quoted above does not contribute anything other than showing ignorance. The owner of Empirical Audio knows more about clocking of DAC's and digital sources than most people and has a real passion for the subject. -- Jaco Jaco's Profile: http://forums.slimdevices.com/member.php?userid=10726 View this thread: http://forums.slimdevices.com/showthread.php?t=37557 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Empirical Audio Pace-Car Reclocker
Hi DC, I didn't claim that FIFO's and master clocks were something new - they've been used in the pro audio world for a long time. However, this is the first solution (at least what I'm aware of) that employ these techniques for the SB3. DC, your description of the how the FIFO buffers work are excellent. That's exactly where something like the PaceCar enters the picture. In order to prevent FIFO buffer over/under-runs the PaceCar is in control of the master clock. Since the SB3 is slaved to the clock of the Pace-Car, the buffer in the PaceCar will never over/under-run even though the incoming signal may have jitter. The buffer is then clocked out using a very low jitter clock. By employing this technique the SB3 can operate as a digital source with extremely low jitter. Whether the low amount jitter makes an audible difference or not is an interesting question. Anecdotal evidence shows that people are able to hear very low levels of digital jitter, and yes, I realise that I've opened up a Pandora's box by saying that! :-| Regards J -- Jaco Jaco's Profile: http://forums.slimdevices.com/member.php?userid=10726 View this thread: http://forums.slimdevices.com/showthread.php?t=37557 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Really controversial idea...
My believe is that all these different approaches of slaving the DAC to the clock of the digital source, or by using PLL's or re-clocking/re-sampling are fundamentally flawed. It is the DAC that should be the clock master and not the source. That immediately solves most of the jitter issues if the DAC has a low-jitter master clock. Fortunately some companies have realised this and started taking this approach. For example, see the Pace-Car by Emperical audio (http://www.empiricalaudio.com/frPace-Car.html). Another company taking this approach is LessLoss (see http://www.lessloss.com/). By the way, the latter web site is a useful resource of information regarding jitter with some nice animated pictures of what it looks like. -- Jaco Jaco's Profile: http://forums.slimdevices.com/member.php?userid=10726 View this thread: http://forums.slimdevices.com/showthread.php?t=37044 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Really controversial idea...
Thanks for your reply Phil. Yes, I'm also interested in hearing what different amounts of jitter sound like. That could be an intersting experiment. A good friend of mine is a recording engineer and we've experimented quite a lot with the good sounding harmonic distortion of valve pre-amps. It's an eye-opening experience for most people that have not being exposed to it before! Being an electronics engineer with a master's degree in digital signal processing I typically prefer the more elegant technical solutions. :-) Unfortunately that is not what I'm seeing with the transport being the clock master - hence my leaning towards the solution where the DAC is the clock master which simplifies things considerably, and hopefully bringing down the price of high quality digital audio. I agree that existing solutions using the PLL or re-clocking/re-sampling approaches do sound good. However, the really good ones do come at a considerable cost in financial terms :( My believe is that the DAC as clock master can make even a cheap CD player a great digital source. Now we need to work on the cost of DAC's which can act as clock masters... That's just the engineer in me striving towards the more elegant and more economical solutions... -- Jaco Jaco's Profile: http://forums.slimdevices.com/member.php?userid=10726 View this thread: http://forums.slimdevices.com/showthread.php?t=37044 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] How to use the world clock input on the Transporter?
OK, I did some more research on this issue. It seems that there are two different standards for providing an external clock signal to digital sources. 1. An input running at the sampling frequency, e.g. 44.1kHz or 96kHz (called Wordclock) 2. An input running at the internal crystal frequency, e.g. 33.8688, 16.9344 or 11.2896 MHz (called Superclock) Which one of the above is supported by the Transporter's external clock input? -- Jaco Jaco's Profile: http://forums.slimdevices.com/member.php?userid=10726 View this thread: http://forums.slimdevices.com/showthread.php?t=36779 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
[SlimDevices: Audiophiles] How to use the world clock input on the Transporter?
I'm investigating the use of an external DAC with a world clock output to use with the TP. One example of such a product is the LessLoss DAC (see http://www.lessloss.com/). The way I understand the world clock input is that it has to be configured to work with a fixed sampling rate, e.g. 44.1kHz or 96kHz. If I'm playing both 44.1kHz and 96kHz files then I'll have to change the configuration of the world clock generator to the required frequency before playing the different files. My question is whether there is a way to have this switching done automatically? Any suggestions, or is there something I'm missing? -- Jaco Jaco's Profile: http://forums.slimdevices.com/member.php?userid=10726 View this thread: http://forums.slimdevices.com/showthread.php?t=36779 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
[SlimDevices: Audiophiles] Transporter vs. Resolution Audio Opus 21 CD Player
Have a look at the following review at SonicFlare: http://www.sonicflare.com/archives/resolution-audio-and-verity-audio-review-by-sandy-greene.php The following paragraph caught my eye: The Transporter sounds quite good in that it is very even across the frequency range, has decent dynamic range and has pretty good instrument texture and timing. The Resolution Audio CDÂ’s sound quality player blew it away. The sound was way more impact-full and realistic. The low end had more umph. The entire frequency range through the Res CD had more ambient information. The high end of the Resolution Audio Opus 21 CD player has a great balance of detail and air. The midrange was way more accurate than transmitted through the TransporterÂ… being tuneful, engaging, dynamic and rhythmic through the Resolution player. It was one of the more obvious sonic differences I have heard between two digital sources. Are there any opinions from Transporter owners out there? Currently I'm seriously considering the option to upgrade my SB3 to a Transporter, but reviews like the above make me think twice. I don't necesssarily distrust the audio quality of the Transporter, but reviews like above make me believe that the Transporter could be improved significantly. What would happen if we could get a Transporter+ with the same audio qualities of the Resolution Audion Opus 21 CD Player? Jaco -- Jaco Jaco's Profile: http://forums.slimdevices.com/member.php?userid=10726 View this thread: http://forums.slimdevices.com/showthread.php?t=36681 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] HDCD ripping
I've just verified that ripping with EAC using FLAC works for HDCD - yay! My setup consists of an SB3 with a Denon 3805 A/V amp. The 3805 has the ability to decode HDCD. The digital output of my SB3 is connected to the digital in of my Denon 3805, that is, I'm using my 3805 as a decoder and DAC for my SB's digital audio. When I play any of my ripped and FLAC encoded HDCD's, e.g. Dreamland by Madeleine Peyroux, the Denon 3805 indicates that it is playing an HDCD. -- Jaco Jaco's Profile: http://forums.slimdevices.com/member.php?userid=10726 View this thread: http://forums.slimdevices.com/showthread.php?t=32967 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] HDCD ripping
I've been planning to upgrade to a Transporter, but by doing that I'll be losing the ability to play my HDCD's as they were intended - damn! Ok, I can always connect the digital out of the Transporter to a DAC that can decode HDCD, but then I'll have to remember which of my CD's are HDCD encoded :-( That's too much of a schlepp. So, here's my feature request for the Transporter: please, please add HDCD decoding! -- Jaco Jaco's Profile: http://forums.slimdevices.com/member.php?userid=10726 View this thread: http://forums.slimdevices.com/showthread.php?t=32967 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Flac
You can also give Magnatune a try. See http://www.magnatune.com/ -- Jaco Jaco's Profile: http://forums.slimdevices.com/member.php?userid=10726 View this thread: http://forums.slimdevices.com/showthread.php?t=33813 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Transporter Review in Hi-Fi News (UK)
seanadams;188912 Wrote: Have you considered the possibility that it is complete nonsense? Based on Sean's and other follow-up replies this seems to be the case, as well as the fact that other reviews are much more similar in their praise of the Transporter. Thank you for everybody's input and feedback on my questions. -- Jaco Jaco's Profile: http://forums.slimdevices.com/member.php?userid=10726 View this thread: http://forums.slimdevices.com/showthread.php?t=33276 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] my ripping tool of choice
jeffmeh;180350 Wrote: Admittedly, there are a bunch of tools in play, but here is what I do: -Rip with EAC, set up to use FLAC as an external compressor to get FLAC files. Try to be diligent about the tags in EAC so I do not have to retag later. -Foobar to add replaygain (album and track) values. -MP3Tag if I need to retag. -Album Art Aggregator to find artwork and put a cover.jpg in the album's directory. -FLAC2MP3 (Robin Bowes' script) to keep a parallel directory structure of MP3s to load onto portable players. Instead of using 5 different tools to do all of the above I use only two: -Rip with EAC, set up to use FLAC as an external compressor to get FLAC files. -Add replaygain, retag, get album art and convert to other formats, manage file organisation, and much, much more with MediaMonkey (see www.mediamonkey.com). It's also a player. MediaMonkey is a really good piece of software, and it's for free. What would be really nice is to use MediaMonkey to control slimserver instead of the really slow and clumsy web-page approach. -- Jaco Jaco's Profile: http://forums.slimdevices.com/member.php?userid=10726 View this thread: http://forums.slimdevices.com/showthread.php?t=32425 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Transporter Review in Hi-Fi News (UK)
Hi Sean, Thank you for the informative reply regarding jitter in the Transporter. Given that so much attention is given to the jitter in the design of the Transporter and that the results measured by the Miller test aren't really relevant, then the results of the Hifi News review still begs the following questions: 1. What was the cause of the very noticeable difference between the streaming and DAC modes? Qouted directly from the review: In stand-alone DAC mode the Transporter sounded crisper and musically more insightful and involving, whereas via the network connection leading edges were fudged, tempos dragged and the sound became altogether less gripping. Why this should be I can only speculate on but the difference was plain to hear. 2. Why would there be such a remarkable difference in audio quality of the Transporter vs. the Townshend Audio TA565 CD player? Quoted directly from the review: The TA565 majors on being audio Windowlene, clarifying telling microdynamic and acoustic details which many other players smudge. As, indeed, does the Transporter. In fact the comparison was not unlike that between the Transporter in streaming and DAC modes. [...snip...] You could hear the difference in a split second,... -- Jaco Jaco's Profile: http://forums.slimdevices.com/member.php?userid=10726 View this thread: http://forums.slimdevices.com/showthread.php?t=33276 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Transporter Review in Hi-Fi News (UK)
Whether you like the Hifi News review or not is irrelevant to the point, which is, that the measured jitter figures showed a large discrepency compared to the ones measured by Stereophile. This woul obviously result in the lower audio quality picked up by the Hif News reviewer relative to other high end players. I tried to find the official jitter figures from the Transporter's datasheet, but all I could find is the following: Clock signals in Transporter are handled not as ones and zeroes, but as precision analog signals. Specialized crystal oscillators, careful clock management, and linear-regulated logic supplies ensure the lowest possible jitter throughout the system. Whether that translates to a good jitter figure or not isn't clear. Perhaps Slim Devices could tell us what the jitter figures SHOULD be, and also what the manufacturing variance on that figure should be. A 4 to 1 ratio just doesn't sound right to me. If that is the case then there are some serious issues with the jitter reuction in the Transporteer's design. So, would Slim Devices like to enlighten us please??? -- Jaco Jaco's Profile: http://forums.slimdevices.com/member.php?userid=10726 View this thread: http://forums.slimdevices.com/showthread.php?t=33276 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Transporter Review in Hi-Fi News (UK)
Please people, before making such wildly speculative conclusions about Hifi News reviews or British Hifi magazines in general, just go read the darn review first! The Hifi News reviews are technically sound. Their review process consists of two independent test tracks: one performed by the reviewers by listening and comparing to other similar equipment, and the other by thoroughly measuring the equipment. The measurements are done by Miller Audio Reseach - you can download the measurements for yourself from http://www.milleraudioresearch.com/avtech/. After all that's been done the reviewers try to correlate what they heard through their listening tests with the independently recorded measurement results. It's usually quite amazing how well the listening tests correlate with the measurement results! Here's an excerpt from the Miller Audio measurement results: Measured via its fixed balanced outputs using both 48kHz an 96kHz/24-bit data, the Transporter emerges as an impressive and slick design that offers an excellent technical performance (low THD and wide S/N), only partially let down by a relatively weak jitter rejection. ...[snip] Measured against this backdrop, the moderate 1000psec jitter is a tad disappointing and, being largely data-induced in nature, looks to be a by-product of the S/PDIF input receiver rather than the DAC itself... After noting that the Townshend CDP sounded much better than the Transporter the reviewer writes the following: This outcome might seem surprising in light of the Transporter's mostly exemplary measured performance, but the results of Paul Miller's jitter test may hold the key. While data-induced jitter can make reproduced music sound bland, in Paul's words, the jitter figures recorded here are moderate, rather than debilitating Then a paragraph later the reviewer writes: But there is still a puzzle here, in that Stereophile's recent review of the Transporter - published after I'd already begun my assessment - elicited much lower jitter figures, despite using the same measurement hardware, and reached more positive conclusions about its sound quality. This may suggest that our review sample wasn't in the rudest of health but, until we test another, we have to assume that it is representative of the 230V incarnation. However that pans out, the conclusion for now has to be that the Transporter, despite its broad capability, attractive design and fine perfomance on the test bench in most respects, doesn't quite deliver on its promise of high-end sound quality. It simply lacks the resolution to mix it with the best of conventional audio. For those that didn't read the Stereophile review of the Transporter, they can find it here: http://www.stereophile.com/mediaservers/207slim/ The measured jitter results in the Stereophile test was in the region of 250psec - a third of what was measured in the UK version of the Transporter. For comparison purposes, really good DACS and CD players have jitter figures in the region of 20psec. So, in my mind the Hifi News review was objective and very honest - that's something that can't be said of many other Hifi magazines! -- Jaco Jaco's Profile: http://forums.slimdevices.com/member.php?userid=10726 View this thread: http://forums.slimdevices.com/showthread.php?t=33276 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
