VK-31 or other BAT preamp upgrade


Has anyone tried upgrading the stock VK-31 with either Super-Pak or Six-Pak? If not the VK-31, then any other BAT preamp that uses 6922s? I'm considering these upgrades. Thanks.
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Showing 1 response by rello

Balanced Audio

Thanks for the info.
How recent are the factory's capacitor imporvements? My vk-p5 with six pak is about 3 years old.