sssboa
Super Member
Hi
I have both vintage amps
CA-1010 (from 1977 2x110W) has been bought recapped
CR-1000 (from 1974 2x70W) all original (it's a receiver)
I also have modern R-N500 receiver (2x70W)
I noticed that CA-1010 produces a lot of heat to a degree that could double as a heater and I mean in Normal mode not ClassA.
CR-1000 stays barely lukewarm even after hours just like the modern R-N500.
I measured their wattage intake on mains using a plug meter and I discovered that the cool CR-1000 and R-N500 take in almost perfectly the same 30W at the volumes I use. The hot CA-1010 takes 130W in Normal mode and 230 in ClassA. So it's like 4 times more in normal mode than CR-1000.
My question: Is CA-1010 (when in Normal mode) in a different energy class than CR-1000 or maybe something should be adjusted to prevent overheating and energy overconsumption?
I heard that the late 70s receivers like CR-1020 are overheating (they often can be seen with blackened grid) but never heard it about the amps in Normal mode.
Thx
Andy
I have both vintage amps
CA-1010 (from 1977 2x110W) has been bought recapped
CR-1000 (from 1974 2x70W) all original (it's a receiver)
I also have modern R-N500 receiver (2x70W)
I noticed that CA-1010 produces a lot of heat to a degree that could double as a heater and I mean in Normal mode not ClassA.
CR-1000 stays barely lukewarm even after hours just like the modern R-N500.
I measured their wattage intake on mains using a plug meter and I discovered that the cool CR-1000 and R-N500 take in almost perfectly the same 30W at the volumes I use. The hot CA-1010 takes 130W in Normal mode and 230 in ClassA. So it's like 4 times more in normal mode than CR-1000.
My question: Is CA-1010 (when in Normal mode) in a different energy class than CR-1000 or maybe something should be adjusted to prevent overheating and energy overconsumption?
I heard that the late 70s receivers like CR-1020 are overheating (they often can be seen with blackened grid) but never heard it about the amps in Normal mode.
Thx
Andy