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MC TRANSFORMERS VS TUBE PRE PRE

Has anyone here had much experience comparing mc step-up transformers vs. tube pre pre amps? Several things conspired together to cause me to send my Counterpoint SA-5.1 to Alta Vista in order to have the Sowter 8055 transformers installed. I own a Counterpoint SA-2 pre pre amp which was simply magical with the SA-5.1. Unfortunatly, my SA-2 broke and then my listening room was flooded out (thus the conspiring events). When my listening room flooded, I decided to take the "opportunity" of my music downtime to send the 5.1 back to Mike and have the Sowter mc transformers installed as an "upgrade" and then not have to worry about having the SA-2 repaired. After all, the Sowters' were supposed to far superior to the SA-2 and it would remove a bunch of tubes from my system by replacing the SA-2. Well, my listening room was fixed from the flood and slowly my system came back together again. When I installed the SA-5.1 back into the system with the Sowters' now in place, I was bummed to say the least. The magic was gone. In its place was a homogenized, dumbed-down version of what my LPs used to sound like. Had I not known any better (i.e.; I didn't know what information was really on my records), I would think the Sowters' sounded really good. However, I do know better. My question to the forum is does anyone else have any experience going from a quality tube pre pre and switching to transformers? I don't mean to pick on Sowters' in particular, they are just what I have installed and Mike feels they are the best of breed. I am beginning to think that the problem lies in using any mc transformer. At this time my SA-2 is in route back to Alta Vista to be fixed. I am going to send my SA-5.1 back and have the Sowters' removed and my phono stage restored to the way it was. I want the magic back that I had. And the magic that I am speaking of is the difference between your system sounding like live musicans are playing in front of you with all of the dynamics that implies vice having a system that sounds very "nice" in the usual audiophile sense that would impress people who didn't know better. For the record, my system consists of the VPI TNT MKIII with the new 300 RPM motor, ET-2 tonearm, Denon 103R cartridge which replaced my Van den Hul MC-2 special which it simply smokes, Counterpoint SA-5.1 pre, and Quicksilver MS-190 amp on the main speakers. I have a DBX electronic crossover that feeds a pair of Denon POA 6600A monoblocks for the subs. My speakers are my own designs. They are all (main speakers and subs) 1/4 wavelength transmission lines. Bottom line is that before I ever take another blind alley on "upgrades," I want someone to come to my house and show me that what they have is better. For the here and now, I would step over all of the mc transformers out there in order to get my hands on a SA-2. And if anyone has heard another pre pre that bests the SA-2, please let me know what it is. One last tid bit. If you have a British copy of the Beatles lp Abbey Road, listen to the beginning of Sun King. Let me know if you can hear Ringo hitting the cymbals with a mallet, and if you can hear pressure waves coming off each of those strikes with differing dynamics. If the answer is no, it just sounds like cymbals being hit, you are in the "missing information" catagory which is where I am currently back to with mc transformers.
mepearson
swampwalker's avatar
swampwalker
5,138 posts
 
There has been extensive discussion on this issue; search the fora under step up vs gain stage, etc. Also check threads by/contributed to by Dougdeacn and others. Most but not all feel that the added gain stage is superior to the xformer, but not everyone.
mepearson OP
100 posts
 
Thanks so much for your response. I will check out the threads.
dgarretson
2,599 posts
 
I'm sure many will disagree, but I've not found the step-up transformer that doesn't sound synthetic relative to cartridge straight into tubes. I've tried Jensen & Cinemag with BAT P10 & Atma-Sphere MP-1. But step-ups are a necessary evil for very low-output cartridges into most tube phono stages.
rwwear
2,871 posts
 
I have a Counterpoint SA-9 and have resisted having the same upgrade you had done because even though it may become quieter, I was afraid of it not sounding as good. I am glad to hear from someone who knows. The SA-9 has plenty of gain and sounds great as it is. I did have the output level control bypassed by Michael a few years ago and it did improve the sound alot.
In my estimation, most phono transformers I have heard soften the bass.
mepearson OP
100 posts
 
If I had a Counterpoint SA-9, I would not have mc transformers installed. What I find ironic about Alta Vista upgrades for the SA-5000 and the SA-9 is that Mike removes the SS components from the phono sections so that now they don't have enough gain anymore to run low output mc cartridges straight in. With both the SA-5000 and the SA-9, he is stripping them down which makes them more like the original SA-5.1. Even though some people may think the SA-5000 is a better preamp than the SA-5.1, I think it is only better in terms of ergonomics (two sets of outputs, cartridge loading on the front panel, lots of gain on the mc input). The SA-5.1 has a more sophisticated tube regulated power supply. Back to the main point, I think that active mc preamps sound better than transformers. Therefore, if I had a SA-3000, SA-5000, or an SA-9, under no circumstances would I have that phono stage altered to remove the J-FETs that give it the added it gain it needs for low output mc cartridges. Right now, I just want my SA-2 back and my 5.1 phono stage restored. Those two pieces are MAGIC together. Maybe the combo should be called the SA-10.
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