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MP3 phono cascode mod

I am currently using old Grado Reference (5mV) cartridge. Volume level is at 8-9 o'clock.

Some old treads mentioned cascode mode in MP3 phono stage: removing middle two 12AT7 tubes, and placing jumpers (between pins 1-3 and pins 6-8) in tube sockets to reduce gain and better sound.

Any experience or suggestions?

Does factory have jumper/adapter for purchase?

Thanks.


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Topic - MP3 phono cascode mod - MP 03:52:37 12/14/22 (10)

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