I picked up these three 80s LPs for a very reasonable amount!
Saturday, July 23, 2022
Factory Records Shop Dover NJ
I picked up these three 80s LPs for a very reasonable amount!
Saturday, July 9, 2022
SRPP SE2A3 Circuit Redux
Back in the late 90s, I dismissed the hi-mu/low-gm SRPP input/driver because I found that the circuit had a tendency to sound tiring over extended listening. However, my memorable encounter with the Morikawa SE2A3 amp owned by my buddy Jose was haunting. I had to revisit this circuit just to make sure I left no stones unturned.
Earlier this year, Steve of Angela Instruments shipped me the "shop mule" SRPP SE2A3 amp for a check up. After replacing the leaky coupling caps, the amp was as good as when I delivered it to the shop over two decades ago.
My hotter operating point = slightly more power compared to Prof. Morikawa's SRPP 2A3 amp.
!!!WARNING!!!
The voltages in this circuit are potentially lethal! Build at your own risk!
Use a Hammond 302AX power transformer instead of T1 + T2 A&B |
Click here to see the "cleaner" 10kHz square wave from the Morikawa SE2A3 amp |
In spite of the 10 kHz square wave spike from the budget Hammond 125ESE output transformers, it was a very refreshing musical reunion with the Angela SRPP 2A3 amp.
During its residency in the man cave, the amp powered my back up Altec 2-way system above, Altec 755As and Altec 755Cs in Silbatone cabs below. It was totally devoid of the listener fatigue I previously ascribed to the circuit. Even with the brightest and harshest software and/or hardware thrown into the listening chain, I couldn't induce the unpleasant quality which bothered me in the past.
Then it dawned on me that I started doubting the SRPP's musical abilities when my Altec 2-way project commenced. Sorry SRPP, it wasn't your fault...😟