David Shaw, the HP8 designer, cautions against using 12AU7 / ECC82 (20x gain) in the "V1" socket. HP8 was designed for 12AX7 / ECC83 (100x gain) use in the "V1" socket. [See HP8 owner's manual.]
David Shaw, the HP8 designer, cautions against using 12AU7 / ECC82 (20x gain) in the "V1" socket. HP8 was designed for 12AX7 / ECC83 (100x gain) use in the "V1" socket. [See HP8 owner's manual.]
Yeah just got my HP8 Signature yesterday, manual says 12ax7 or 12AT7 if you want lower gain. That's it, no other tube types should be used there. CV181/6SN7 only as well.
This amp is beautiful sounding already. I can see why users are in love with it!
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