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PostPosted: Mon Jan 22, 2024 10:34 am 
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Joined: Thu Oct 13, 2016 10:04 am
Posts: 4
I recently installed the VRM module in my TC15, as per the instructions, full power supply regulation.
I am very happy with the results; makes the amp much more versatile for home use.
I do have one observation, and want to check if this is normal.

I have noticed that the 12AX7 channel responds more dramatically to the power reduction than the EF86 channel, in terms of drop in volume and faster onset of distortion.
I assume this is because the EF86 channel only has a single preamp gain stage being down-regulated compared to the four 12AX7 stages being down-regulated.
Has anyone else observed this?

thanks
Mark


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