Ampeg B15-NF Portaflex Polysynth It’s very loud

It’s very loud

It's just been serviced and recalibrated by a top synth tech

quieter than the others

The "Phasor B Input" and "Sweep" knobs have both had screws inserted into the sides to allow them to properly attach to the pot

Ampeg B15-NF Portaflex Polysynth It’s very loudSuperb Ampeg B15 NF Portaflex valve amp in very good cosmetic condition and excellent working order. This is the classic bass amp as heard on many recordings from Motown onwards. Dates from c1964. Overhauled by Ampeg specialist (and ex vice president) Jess Oliver in 2002 (sticker inside speaker cab his signature was on the rear of the amp, but unfortunately was cleaned off by one of our over zealous elves). FUNCTIONING: Its just been serviced by our