[SlimDevices: Audiophiles] Rega/HRT dac comparison
I recently picked up a second SBT in a Logitech blemished box sale here in the UK, as insurance against any problems with the original. I had some time on my hands today and decided to do a comparison between my Rega and HRT II+(2011) dacs. So setup as follows: - both SBTs stock, except for Triode's EDO (on both). Stock power supplies to both. - level matched (nothing sophisticated, just a test tone and free Ipad app) - same cables from both dacs to preamp - remote control preamp - SBTs synchronised and connected wirelessly to server - Rega via filter 1, and optical spdif input (this is my normal setup) System is, I think, quite transparent (LDR passive preactive crossover(with dsp)2xset amps/plate ampsOB speakers(Hawthorne)) I started off by randomising the input to the preamp so I couldn't know which dac was playing. Later, curiosity got the better of me and I switched between dacs sighted. To be succinct, I couldn't put a gnat's whiskers between them. There would be no point in a proper blind test as I know I wouldn't have a clue. I then decide to apply TT2 to the SBT with HRT connected (wireless deactivated, and connection via bridge). I still could not discern any difference whatsover. I'm kind of disappointed, because I had thought to hear differences applying various mods, but this exercise has been educational for me. At least I have learned that to assess any change it is very useful to have a benchmark in place, which you can switch quickly back to for comparison. john4456's Profile: http://forums.slimdevices.com/member.php?userid=23008 View this thread: http://forums.slimdevices.com/showthread.php?t=94965 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] soundcheck's Touch Toolbox 3.0
Klaus, I use a HRT dac via usb, with TT2 installed (works great). Any reason why this shouldn't work just as well with TT3, assuming I change the buffer size etc ? Thanks -- john4456 john4456's Profile: http://forums.slimdevices.com/member.php?userid=23008 View this thread: http://forums.slimdevices.com/showthread.php?t=91322 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] New Squeezebox Touch Mod
rgro;650349 Wrote: Please forgive my muddling here... When I type the command: pse -e | grep jive* I get: 724 ?00::58:04 jive 746 ?00::58:04 jive_alsa From here, then, what do I actually need to type to see and change the jive_alsa value?? (I think) you just need to enter chrt -f -p xx 746 where xx is the desired value -- john4456 john4456's Profile: http://forums.slimdevices.com/member.php?userid=23008 View this thread: http://forums.slimdevices.com/showthread.php?t=89359 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] New Squeezebox Touch Mod
JohnSwenson;648109 Wrote: Yes it does, I've been playing with this all weekend. In the instructions run the command that lists the interrupts, search for the USB one. Use this interrupt number instead of the one for spdif in the rest of the instructions. Play around with the priority number you give this IRQ, it can significantly change the sound. I've been playing around with these techniques trying to get hi res 24 bit playback to work and its almost there with the HRT. It still once in a while, but it's much better than it was. John S. Thanks John - this is very interesting. I think I have managed to find the USB process id (305 on my Touch), although I haven't had the chance yet to do much listening. I am also using a HRT (the new II+). With Soundcheck's mods applied, I find the results better than any dac I have tried via spdif, so I would love to be able to have a stable 24 bit capability. Please do keep us posted on your progress with this. -- john4456 john4456's Profile: http://forums.slimdevices.com/member.php?userid=23008 View this thread: http://forums.slimdevices.com/showthread.php?t=89359 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] New Squeezebox Touch Mod
Dynobot, thanks for sharing your mod. I'm using the USB audio out on the Touchis the mod likely to have an effect in this scenario (or does it only impact spdif)? Thanks -- john4456 john4456's Profile: http://forums.slimdevices.com/member.php?userid=23008 View this thread: http://forums.slimdevices.com/showthread.php?t=89359 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] The Blind Testing Controversy
mlsstl;411719 Wrote: Your comment above (which others have also stated) gives a typical case. As you and others have noted, I not aware of any study that claims 128Kbps is indistinguishable from CD, yet it is a constant theme. I guess it is far too convenient a straw man to give up. In the UK the Advertising Standards Authority (ASA) exists to police the advertising industry and investigate complaints from the public. The ASA is occasionally called on to adjudicate complaints concerning an advertiser's claims regarding sound quality. In investigating a complaint against Nokia in 2007 the ASA concluded that Nokia's claim that 128kbs AAC equated to CD sound quality was unlikely to mislead. They based this conclusion on tests provided by Nokia that proved that most listeners were unable to distinguish between compressed AAC files encoded at 128kbps and CD sound. http://www.cap.org.uk/asa/adjudications/Public/TF_ADJ_42482.htm This judgement has been widely reported (and lamented) in the UK hifi press. -- john4456 john4456's Profile: http://forums.slimdevices.com/member.php?userid=23008 View this thread: http://forums.slimdevices.com/showthread.php?t=61877 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] The Blind Testing Controversy
Isn't the great triumph of blind testing that it enables advertisers to claim that 128kbs mp3 is cd quality ? -- john4456 john4456's Profile: http://forums.slimdevices.com/member.php?userid=23008 View this thread: http://forums.slimdevices.com/showthread.php?t=61877 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
Re: [SlimDevices: Audiophiles] Beresford DAC ... Who uses one and how good is it really ?
Another happy Beresford user here. IME it offers a huge improvement over the SB. I originally used it with an SB3, but it was relegated to the bedroom system along with the SB3 after I upgraded to an SB+. I have recently had the dac upgraded by Stan to mark 6/4 and now prefer the SB+ with Beresford to the SB+'s own analogue outputs. I have also found that the Maplin PS improves things with 6/4. The new version looks interesting as the pre-outs are supposed to be much improved (the existing version direct to power amp sounds a bit dull/veiled in my system). -- john4456 john4456's Profile: http://forums.slimdevices.com/member.php?userid=23008 View this thread: http://forums.slimdevices.com/showthread.php?t=57619 ___ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
