If you have no test equipment, use a Y adapter from only one preamp output to guarantee
that the same signal goes to both amp inputs, and listen again.
Appreciate the interest. After thinking about when it occurred, it turns out I noticed the change after rearranging the speakers for a different imaging experiment. My room is oddly shaped, so I presume reflections (or lack of) were the cause. A quick speaker and seating position adjustment and all was well.
Source and speaker swaps yielded the same results, so speaker position was the culprit.
Thanks for checking back! I haven’t yet checked the voltages, but hope to do so today just to verify things are running well. I leave it on all the time so it should be plenty stable.
Source and speaker swaps yielded the same results, so speaker position was the culprit.
Thanks for checking back! I haven’t yet checked the voltages, but hope to do so today just to verify things are running well. I leave it on all the time so it should be plenty stable.
Last edited:
Great that you figured it all out. I have a similar issue because of my room layout. This is the exact reason I built my B1 Nutube with separate left and right volume controls. I can compensate for the slight uptick in perceived volume on my left channel.
So, here we are, approaching two years since I built this amazing amplifier. @dBel84 and I have run a lot of tunes through it and swapped a lot of speakers on and off of it (he has quite the eclectic collection that he hauled all the way over to my house), and it never skips a beat. We've probably even put a half dozen preamps on it as well. It's a pure pleasure listening to the Aleph J amplifier.
If you're looking for an excuse to build one, you totally have my blessing.
If you're looking for an excuse to build one, you totally have my blessing.
