BHK Preamp tube rolling

Ok. Thanks for the advice!

Pulled out my stock tubes tonight and I’m trying out NOS Brimar 4003 tubes. Immediately the mids sound cleaner along with vocals! Bass doesn’t seem as deep as it did with PS Vanes. Only about an hour in so I’m curious if they will sound any different with some more burn in time?

1 Like

Many benefit from a break in of 50-100 hours.

1 Like