Micro
I know mep had an experience with the Yamaha C2 and I would like him to repeat what i think of it compared to the very highly esteemed Counterpoint SA 5.1.
Having owned and loved the SA-5.1 since it first came out and having bought one brand new, I think I know this preamp well. Unlike other *tube* preamps that claim to be “pure tube” or something to that effect, the 5.1 really was pretty much pure tube. Tube rectification, tube voltage regulation, tube phono stage, and tube line stage. The last 5.1 I owned, I had over $5K invested in it with all of the upgrades I had performed by Michael Elliott. The phono stage was rebuilt, the line stage rebuilt, the power supply was rebuilt, all RCA jacks replaced, new DACT volume pot, and replacement umbilical cord with Cardas wire between the outboard power supply and the preamp.
The last upgrades I had done were the power supply, umbilical cord, and DACT volume control. I had to wait months for this work to be completed (that is another story) so I bought a Yamaha C2a to use while I was waiting because I thought it appeared to be a very serious Class A SS design with a phono stage and two sets of main outs. It would fit the bill and the price was cheap. I also thought I could move it back down the road when I was done with it and not lose any money.
As a *former* dyed in the wool tube lover that believed SS was the spawn of Satan, I was perplexed at first when I listened to the C2a. The damn thing sounded great with both digital and analog. The SA-5.1 sounded very good with analog, although I had to use the SA-2 head amp for phono which raised the noise floor more than I liked. The SA-5.1 didn’t sound good with my server though. I thought it was the cheap E-MU 0404 DAC that was causing the *problem.* I have said it numerous times that this DAC has a reputation as a giant killer and our own Steve Williams said it sounded very good in his system when Larry Toy brought it over for a test drive. When I heard this DAC with my 5.1/Jadis Defy 7 MKII combo, it sounded like ass and I told Steve what I thought. Steve could only shrug his shoulders because he knew what it sounded like when he heard it.
Imagine my surprise when all of a sudden digital had to be taken very seriously with the C2a in the playback chain. I just never saw that coming. The phono stage has lots of gain, is VERY quiet, and sounds really good. I just wish the MC side had adjustments for loading. I will tell you this, I bought the McIntosh C2300 preamp and even though it has more features than a Swiss Army knife, I didn’t care for its sound (or one too many colors on the front panel), and I would take the C2a any day over the C2300. So now both my digital and analog are sounding great with the C2a. My noise floor with vinyl was lower than it had ever been with the C2a in the mix.
Bottom line was that I didn’t feel too great about investing all of the money I had spent on the 5.1 only to have it get spanked by a Yamaha C2a (over $5K vs. $300). And for those of you who think that major new advances come out every year in the sound of preamps and power amps, you need to rethink that position. Passive parts such as capacitors and resistors have improved over the years with Teflon caps being all the latest rage, but circuits either SS or tube haven’t changed drastically over the years-and certainly haven’t made major advances on a yearly basis.
Many tube products on the market are based on 1950s/1960s designs with updated passive parts. In the case of tube amps, there are only so many ways and so many tubes to spilt the phase and drive the output tubes. Many of today’s *tube* preamps really only have a single pair of tubes that are preceded by FETs and have SS buffers on the output to lower the impedance. The ARC LS-17 that I owned was a classic case of that. It sounded more SS than good SS sounds.
I haven’t had the nerve to put the C2a back in my system since my Krell KBL preamp came back from the factory last October. You would think that a preamp that sold for $4500 wouldn’t be a fair comparison for the C2a…