DACs: Airport Express vs waveterminal vs mini-dac


I know this is impossible to quantify, but with a good stereo system (Cayin TA30 tube integrated amp & Green Mountain Audio Europa speakers), what's the magnitude of difference using the following dacs?

Airport Express (I already have the AX, and can connect it to the integrated amp with RCA's [analog])

Waveterminal U24: computer to USB to waveterminal to amp (waveterminal does the DA conversion)

Inexpensive DAC like ART DIO with waveterminal: computer to USB to waveterminal to ART DIO to amp (ART DIO does DA conversion)

Apogee mini-dac: computer to USB to mini-dac to amp

Other?

What's the best bang for the buck?
mschamberlin3865

Showing 8 responses by pardales

Just as a follow-up: I find myself astounded at the sound quality of my G4 laptop out to the Waveterminal U24 into the preamp section of my 6900 integrated. I preferred the sound of this combo to the Apogee Mini-DAC (used both as a stand alone DAC and direct drive into amp). Don't get me wrong, the Apogee was excellent and I learned a lot from it, but it was not a significant enough improvement over the Waveterminal set-up to justify the 1K price-tag (I got the Apogee from Sweetwater, they are a GREAT dealer and had a 30-day money back guarantee). It was mostly different.

I am now auditioning the Benchmark Dac-1. Too early to say but I will follow up once I have logged some hours with it both stand alone and direct drive into my amp section of the 6900.

It has been fun!
I am about to construct such a system. I am starting with a G4 laptop, and external hard drive and a U24 Waveterminal. I will connect the waveterminal directly to my integrated. I will let you know how it goes.
Well the whole project has, thus far, come off without a hitch. They system sounds excellent and I love having music at the scroll of a mouse. Now for the long, arduous task of importing all my music to iTunes....
I am using the U24 as well, with nice results. But I want more. I am trying to decide between the Apogee USB Mini DAC and the Benchmark DAC 1. Any opinions or experience?
I just figured out that I can get lots of great radio through my computer/internet as well. I can now sell my changer and tuner if I want. I am thinking about putting my money towards a really good DAC since my computer is turning out to be the heart of my system. Now that I have ripped my 500 cd's to computer, and have all the album artwork loaded as well, I can't believe I didn't do this sooner. I am rediscovering my music collection and listening to stuff I haven't listened to for years. It would not surpise me if we begin to see a lot of USB DAC's on the market very soon.
Sent the Benchmark back to Audio Advisor today. I am almost ready to give up and just stick with the Waveterminal itself. I don't know what is inside that little box but it must be pretty special. I just got a great deal on a used Dodson 217 MK II-D DAC (with 218 software and upgraded BNC digital input). We'll see. Does anyone know what kind of D/A is in the Waveterminal? At $159 it has to be considered an absolute bargain.
Kenn39: I am aware of the Waveterminal as a device than can take USB out of the computer and convert it into S/PDIF or coaxial. What others are there and are some better than others?