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RE: miss the Telarc Organ Symphony

Sonically identical, like most of the JC MOSFET designs are (after the late 90's?) compared to the A-21, most of them cannot match its power supply budget per channel. That is a relative shortcoming in the A-51. To be sure, I was not able to tell so when I heard it, probably because it was not being driven hard...nor anywhere as low as to stay in class A, either. Yet, at usual volumes it is an A-21 sonic twin.

Then you have the HCA-3500. I actually wanted one very badly at first. However, the real mods for it were the ones JC and his partner fooled around with and offered to do long ago. Along the way, I the realized that I would not have space for neither it nor the A-21 in my place. In an apartment, 3 power amps plus the rest of the audio gear can lead to a divorce.

In the end, finding the 2003A instead of the additional 1500A that I was looking for was a major blessing in disguise. With a beefy PS made for 3 channels, I use only two channels -- just for the tweeters -- and re-biased for a little more class A. Works like charm (though more by accident than skill :).

Which makes me think that if you "wasted" 3 of the A-51 channels...you'd still get great stereo class A for the tweeters...at probably a very decent price. Well, that's just a rough idea that you could polish.


Edits: 01/12/17
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