New DAC Not a Dramatic Improvement?


Ok, So after much thought and asking questions here on audiogon as to whether I should get a new cdp or DAC, I decided on a DAC because I plan on implementing a music server with a Mac Mini. I got it last week and hooked it up so that I could do A/B comparisons with my cdp as is, and through the DAC. My cdp is a 1-2 year old Onkyo dv-sp405 dvd/cd player. At first I was impressed. The bass and vocals were more defined, and there seemed to be more space. Not a lot more space, but just a little bit more openess. The vocals were also moved forward in the soundstage and had more thickness. The thing is, none of these things were very dramatic. THe more time I have sat and listened and done comparisons on many cd's I find the results vary. On some cd's there is significant improvement, and on others, hardly noticeable. In a blind test, do I think I could reliably say whether I was listening to the cdp directly or through the DAC? Let's just say I wouldnt bet my life on it. I probably wouldnt even bet 20$ on it, unless I could hear the two back to back, and on some recordings, not even then.

Now I know about diminishing returns, but I would think the difference between a 150$ dvd/cdp and a 2K$ DAC would be pretty obvious. On top of that, My DAC is hooked up with Transparent Cables (MW Super) and my cdp with 50$ Monster Cables.

Continuing.. I expect some people with say that a good dac needs a good transport. Some will probably say that the dac is being held back by the onkyo as a transport. I have also compared the cdp through the DAC against apple lossless files played from my computer through USB. They are identical.

What could be the weak link? I do not want to say what DAC I am using but lets just say it is a very recent one and around 2K. It is from a very respected company and very well reviewed. My other gear is a McIntosh MA6450 integrated, gallo ref 3.1 speakers, transparent cables. Could it be that my amp is not very revealing? I am thinking about selling the DAC and getting a cheaper one (DAC MAGIC, PS AUDIO DL3) since I will need one for my Mac Mini anyway. Honestly, I just dont think I can justify having 2K in my current DAC for the minimal difference.

Thanks for any insight you can provide.
farjamed

Showing 1 response by jylee

I think you have confirmed one theory that many believe in: that modern digital gears sound pretty similar to each other. Modern 24 bit DAC chips from BB/TI/Wolfson are dime a dozen, and some of the budget players nowadays share the same DAC chips that used to be reserved for high end CDP a decade ago. In order to hear any major difference in sound, I think you need to go above $2000 mark, or go with some unconventional design (non-oversampling, no-filtering, tubed output). Otherwise they all pretty much share the same off the shelf DAC chip and filters, and the small design difference in the rest of the circuits in power supply and output stage yield small audible differences.