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Getting more from my DAC

I need some advice. I've put together a mid-fi office system over the last few months:

Sony XE500 CDP acting as a transport
MSB Link DAC III with 24/96 upsampling
McCormack Micro Integrated Drive amp with upgraded PS
Tannoy System 600 nearfield monitors

Toslink cable between transport and DAC. Ratshack gold series interconnect between DAC and amp. Audioquest Type 6+ wire between amp and speakers.

I was fairly happy with this system until I tried connecting the Sony CDP directly to aux posts on the amp and switching back and forth between the CDP/DAC combination and the stand-alone CDP. On a straight A/B comparison, using the selector switch on the front of the amp, I hear almost no difference, even with well recorded piano music/female vocal/jazz.

This is disappointing. The amp is low powered but pretty transparent, I believe - as are the speakers, which were designed as pro monitors and have a reputation for being revealing. So why aren't I hearing a more perceptible improvement - change, even - in the sound when the DAC is introduced into the system?

Are my crappy cables strangling the DAC? Is the transport too cheapo to let the DAC do its work? Do I need to follow the MSB/Modwright upgrade path before the DAC will really shine in my system? Or is the whole system a bit too bargain-basement to benefit from a decent DAC?

Words of wisdom gratefully received.
spartane5c
kjg
171 posts
 
Oops. My mistake for misreading. You indicated that you are using Toslink for your digital connection and not RS audio cable. Ignore my previous post :-}.

However, introducing a better IC between your DAC and amp should definitely yield an improved sound. Blue Jeans has those too :-).
dne
141 posts
 
The Link is good but sorely needs an upgraded power supply, which makes a tremendous improvement. Either MSB's own P1000 or Monolithic Sounds's HC2. I have an MSB link and was unsatisfied until I got the HC2, which transformed the dac in every area-- transparency etc. and especially the bass. You should be able to pick one up for well under $200. I would do this first, even before upgrading any cables. An upgraded power supply is a universally recommended upgrade for the MSB. IMHO, it is a necessity, not an upgrade.
audioengr
3,282 posts
 
I agree with Dne - the cabling between the PS and DAC must be upgraded.

As far as modding the XE500, the issue is: no one knows whether it will turn out good as a transport or not. Perhaps with a $450 Superclock2 upgrade. You might be better off to buy a cheap Sony DVP-S7700 and get it modded. This player has extremely low jitter, even without a Superclock2. It makes a superb transport (modded) and there are lots of used ones for sale.
toolheada1e8c6
1 posts
 
I would also highly recommend a digital coax. I have had great luck with the Audioquest VDM-3 .. completely different than optical in my tests. Optical is actually derived or converted from coax during the preout stage.

JC
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