DAC vs. New CDP


I've just started looking into what DAC's really are. And I now have a question that I would like some opinions on. I've heard that DAC's can make a CDP sound great, but what if, for a few more dollars, I just got a new (or very nice used) CDP with the very latest DACs already inside?
I have a Classe .5 CDP, about seven years old. I know it doesn't have the modern DACs in it so I would think it's sound isn't as good as it could be. I'm wondering if I should look at a DAC to help the sound (CDP only has a AES/EBU output) or purchase a new or newer CDP. I've been looking at the Cambridge 840, Krell 280, Sim Audio, Bryston & Classe, all in the $1,500 to $2,000 range new or used. I know that the Benchmark DAC will cost around $1,200 new. Very few less expensive DAC's have an AES/EBU output.

My system is: Krell KAV 2250 amp, Krell KAV 280 pre, MF phone amp & headphone amp, Rega P1, Paradigm Studio 60, Kimber and RSCables.

Thanks for any input, ideas or experiences !

Jim
fritter5

Showing 5 responses by kijanki

Audiotomb - Benchamark will do it. It has three inputs (Toslink, S/PDIF, AES/EBU) and each of them with proper adapter can go to any format (same chip) as I understand it.

People who oppose oversampling in general are against digital filtering and not the oversampling/upsampling itself. Latest Stereophile review of upsampling Meridian 802.2 player (different digital filter) proves otherwise (and only for $17k). Benchmark is very good and practical for what it is. It is on neutral/cold side.
"One advantage of a separate DAC is if/when the transport dies, you only replace the transport and for some DACs the transport can be inexpensive."

Exactly. That was my reason for buying Benchmark DAC1. I use DVD player and HDTV as sources and will connect computer as well. Benchmark tolerates low quality transports (jitter suppressing) while DVD players have very good tracking. In addition I can play DVD movies and MP3s (inherent in DVD players).

My Benchmark also serves as a preamp since it has volume control. If you decide to get Benchmark get new one possibly with USB - there are some technical reasons for that (there were many revisions). Benchmark has 30 day no cost loaner program and 5 years warranty (but only for the first owner). Headphone amp is nice addition too.
"If you go with a DAC, you will have the added cost of getting a quality digital cable and power cable (They do matter, IMHO) and also have to store it on an additional self."

Not exactly - if you need better power cable for DAC then you need it for CDP as well - no savings here. I agree about digital cable, but with upsampling jitter rejecting DAC like Benchmark cable quality doesn't matter (Benchmark tested it with 1000' of cable)and you can get the cheapest one in Radio Shack or make one yourself (as I did). Next - you can sell Clasee CDP and buy $70 DVD player (as I did). Very good tracking and MP3 playback.

My previous CDP was Cambridge CD4SE - one of the best Cambridge ever made but transport failed. Combination of DVD player with Benchmark is hands down better (clarity, transparency). If you can spend more try Bel Canto DAC3 - also jitter rejecting (I think)and a little fuller sounding. Both have reviews on "Stereophile" website. They like DAC3 a little better (for twice the cost) but Benchmark was once "component of the year".
Goatwuss - There are two schools (as usual). One says - get asynchronous upsampling DAC (jitter rejecting like Benchmark DAC1) and cheap transport since the only virtue of the expensive transport is lower jitter while the other school says - get NOS (non oversampling) DAC and better transport.

Cost wise first solution is better and that's what I did but you'll find many audiophiles who like NOS better. It is personal/subjective. NOS DACs are not as common as oversampling or upsampling DACs but you might like them.
Swanny - these upsampling DACs have so much jitter rejection that cables or transport don't matter and your Bel Canto confirms this. The only type of transport that will sound different is the one that is not "bit transparent" by means of DSP processing or digital volume control. As long as all bits are there there is no difference.

Goatwuss - I forgot to mention savings on digital cable with upsampling DAC and good digital cables are not cheap.