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In Reply to: RE: Any experience with CCS? posted by Tube747 on February 08, 2025 at 03:31:36
Caveat: my experience is with drivers for 2A3/300B DHSET power amps, which calls for high output voltages and thus greater distortion.
That said, I hear higher resolution of details and reduced euphonic coloration, with better bass slam and treble extension. If the power supply is noisy, a CCS load reduces that noise.
The balance between euphonic distortion and detail resolution is a matter of personal taste. I won't burden this thread with my personal choices/prejudices. :^)
nt
I hear the benefit of CCS loading in low current small signal operation where a large portion of the voltage swing resides in the curved part of the characteristic curve of the tube. I recently made a couple of active loaded tube condenser microphones and I was able to use a single LND150 and the effect or benefit is as clear as daylight. Yet I have also active loaded a preamp with 6N6p running a 20 + mA per tube and there was no real difference in the sound when I took it out. I also have a active loaded compressor with 5965 and 6N1p running strong for almost 20yrs and sounding better than the run of the mill tube gear.
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