The Auzentech X-Meridian Website
http://www.auzentech.com/compare.html
It says "5Vrms (Differential DAC output with gain adjustment / approximately full swing from +/- 8V dual power supply)" - This should be good enough for Car Amp.
The potential for KX project is enormous, especially for CarPC Audio scene. It's real light on processor resource, infinitly configurable so all the ActiveXOver, GEQ,PEQ,Phase/Delay, Surround, etc can be done in digital domain. The KX project:
www.kxproject.com
http://www.driverheaven.net/forumdis...?s=&forumid=67
I can't find it now, but I read it somewhere that they are working to get the C-Media CMI-8788 chipset (X-Meridian's chip) to work with the KX project. I might be wrong.
The best soundcard that currently works with the KX project is SoundBlaster Audigy 2 ZS (SB0350) series. SB X-FI's are not compatible with the KX Project, because Creative is not willing to share the architecture with the KX developer. (or something along that line)
REDGTi, I am sure you know all about KX project, but it might be a good read for someone new.