Phil Leigh;513332 Wrote: > I'm pretty certain that the 2.2X upsamples to 192... especially as it > can output at that sampling rate. > > Anyway, I've gone back to not bothering with SOX to upsample everything > as I can't hear any difference and even feeding 48 into the TACT does > NOT involve simple integer upsampling since the ASRC chip works (in the > analogue domain) on the ACTUAL sample rate which could be 47.999 or > 48.0001 - you get the idea. > Sean pointed this out to me a while ago and ( as usual? ) he was > right. > > > The jitter sensitivity of the ASRC chip is dealt with by a linear PS > for the TACT. No need for Big Ben or similar. The TP is a low jitter > source and the new Touch is at least as good IME.
No, TacT only upsamples to 96K, you can read the specs on 2.2xp on their website. There is yet another ASRC on the output, which allows you to upsample or downsample on the output. It is because of the analog nature of the ASRC, it makes them behaving like a DAC and is very susceptible to jitter. I've an external linear PS for my 2.2xp too. But Big Ben still offers improvements. But the default BB doesn't improve much of anything from the Transporter, unless the SMPS is replaced with LPS too. Also, in my experience, such last little bits of improvements require you first dealt with noise on the AC (common mode and differential mode noise). I've a custom made Balanced transformer with Faraday shield and a PS Audio PPP for AC regeneration. Without such devices, you won't be able to hear the difference offered by BB. -- Kuro ------------------------------------------------------------------------ Kuro's Profile: http://forums.slimdevices.com/member.php?userid=16701 View this thread: http://forums.slimdevices.com/showthread.php?t=69145 _______________________________________________ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
