Ampeg B15-NF Portaflex Polysynth quieter than the others

quieter than the others

and formant filtering—all achieved in the pre-chip era using discrete circuits

This is a monster of a pedal - big

calibrated and in full working order - sounds superb

It’s very loud

Ampeg B15-NF Portaflex Polysynth quieter than the othersSuperb 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