Price Paid:  $25.00 from TigerDirect

Summary:
This soundcard is perhaps the cheapest way to decent sound out of Windows PCs, but requires a bit of do-it-yourself system integration.

Out of the box, Windows mutilates audio through software module called Kmixer. You can bypass kmixer through a better software interface (Kernel Streaming or ASIO). My setup uses Steve Monk's Kernel Streaming plugin for WInamp.

Now Winamp itelf leaves much to be desired when decoding mp3 files... a free plugin called LibMAD does a better job for this format.

The two rear channels on the AV-710 use nice DAC chips (from Wolfson). A bit of Blue Tack on the AV-710 crystals helps to reduce jitter from mechanical soureces like PC fans.

Strengths:
This combination (Monk ks, Winamp, LibMAD, AV-710 and BlueTack) does not deliver the best sound in town, yet it is well worth googling for and putting together: it is the best $25 updgrade for mp3 playback.

Similar Products Used:
Homebrew and semi-homebrew DACs, Edirol FA-101.

Price Paid:  $24.00 from 11cb.com

Summary:
I was not quite happy with the sound of my audio system which consist of a XClock modified Phillip CD payer with a Gamma DAC, an SRPP tube preamp, a 20W per channel class A FET power amp and a pair of heavy floor standing three way speakers. I could use some more clarity in the mid range, more dynamics and a deeper sound stage. I had a gut feeling that the weak link is in either the CD/DAC or the preamp. Since the digital side of technology was newer and post the most potential for improvement, I started to look around for a CD/DAC replacement. I had read some good things about the M-Audio Audiophile 2496 DAC card and thought I should give it a try. Then I found this ChainTech AV710 with similar specs at a small fraction of the cost and purchased it. The installation was easy and problem free. Playing music through a no name brand PC CD drive and this sound card, my stereo system really came alive. The detail was so revealing, I seemed to be able to hear every single instrument of an orchestra. The sound stage became deeper, wider and more dynamic. Now I can stop trying to improve my system and start enjoying listening to music more.

Strengths:
Clear,lively and dynamic mid range. Clean and deep low.

Weaknesses:
The high is little harsh. If you are really handy, you may want to consider swaping out some capacitors.
Only the two channels have the good D/A converter and the other channels are only so-so. Since I only use it for stereo music, it is OK for me.

Similar Products Used:
Philips CD player and Gamma DAC.