DualTriode
Addicted to Fun and Learning
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- Oct 24, 2019
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Hello All,
Still Under House Arrest here.
I bought, count them, 3 Crown ComTech 210 amplifiers with the idea of using them for bi-amp / Tri-amp application. I tested all three of them on the APx555 with the SINAD for the 6 channels in the range of 90 and above except for one.
This performance is pretty decent, near the top tier of the amplifiers tested here on AudioScience. See the FFT’s and SINAD’s posted below.
There is a request for ideas?
What is up with the one channel that is 6 dB low?
I am thinking that there may be old dried up electrolytic capacitors that should be replaced.
What do you all think?
Thanks DT
ComTech Amp 2
Ch1 0.005597 %
Ch2 0.002745 %
Ch1 85.061 dB
Ch2 91.146 dB
Crown210 #2 0.240 v in
ComTech Amp 3
Ch1 0.002711 %
Ch2 0.003375 %
Ch1 91.498 dB
Ch2 89.461 dB
Crown210 #3 0.240 v in
Still Under House Arrest here.
I bought, count them, 3 Crown ComTech 210 amplifiers with the idea of using them for bi-amp / Tri-amp application. I tested all three of them on the APx555 with the SINAD for the 6 channels in the range of 90 and above except for one.
This performance is pretty decent, near the top tier of the amplifiers tested here on AudioScience. See the FFT’s and SINAD’s posted below.
There is a request for ideas?
What is up with the one channel that is 6 dB low?
I am thinking that there may be old dried up electrolytic capacitors that should be replaced.
What do you all think?
Thanks DT
ComTech Amp 2
Ch1 0.005597 %
Ch2 0.002745 %
Ch1 85.061 dB
Ch2 91.146 dB
Crown210 #2 0.240 v in
ComTech Amp 3
Ch1 0.002711 %
Ch2 0.003375 %
Ch1 91.498 dB
Ch2 89.461 dB
Crown210 #3 0.240 v in