Reducing PC Jitter


Hi Everyone.

It is my understanding that (1) one of the issues w/ obtainig good music sound from a computer is jitter and (2) there is more jitter with a USB out than w/ optical or coax out.

In reading this and other Forums and articles in the zines (both hard copy and on-line), it appears to me that to address jitter, especially w/ USB out, one needs a high end USB DAC w/ internal jitter reduction (like starting with the $3000 Bel Canto DAC3 and moving up to the over $8000 range like Wavelenght and Empirical). Or, one could use a "cheap" DAC in the $200 to $500 range (w/o much jitter reduction)in conjunction with a USB to coax and/or optical converter which also has jitter reduction capabiltiy (like a Monarchy DIP ($250 to $300), the new Bel Canto USB Link ($495), an Empirical Off-Ramp 3 w/Superclock4 ($999 to $1425) or an Altmann JISCO ($500 if you can find one).

The most I can spend in 2009 on a solution for USB to analog preamp connection is $500. I see my choices as either:
> a $500 USB DAC, or
> a Monarchy DIP ( I have an inexpensive Behringer USB to optical converter to connect to a DIP) plus a $200 DAC.

Alternatively, I can limp along for a year and save up for either (1) the Off-Ramp3 plus a $500 DAC or (2)a $1500 USB DAC that has decent jitter reduction.

Any advice would be appreciated.
mmarvin19

Showing 1 response by aljordan

There is another manner to reduce jitter on USB connections, and that is to use a computer that has an extremely good USB implementation. The Fit-PC Slim has no on-board switching power supplies and an extremely clean USB output. The PC is low powered and can be driven off a linear supply or a 12 volt SLA battery, giving the cleanest sound I've heard from a PC transport.

Being a low powered computer, it doesn't have a lot of horsepower for upsampling and such, but it does work great as a network player. I control it with the Squeezebox Duet remote.

Alan