1966 Ampeg B-15NF Portaflex bass amplifier - $2,500 (Akron)

1966 Ampeg B-15NF Portaflex bass amplifier 1

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The best recording bass amp ever made! NF is arguably the best version. Rare to find one locally and in this great condition. Fully restored electrically and mechanically. Sounds awesome and super quiet at idle. Don’t expect to jam with a loud drummer as these amps are 30W.

Amplifier replaced:
- Tubes: new pair 6L6GC STR Tung-Sol, replaced preamp tubes with vintage 3x matching GE 6SL7GT’s, vintage GE 5AR4
- All capacitors replaced
- preamp plate resistors and power supply resistors replaced
- added adjustable power tube bias (set at 60%)
- power cord

Cabinet replaced:
- new latches
- new Eminence Delta 15-A (closest speaker to original sound)
- new leather handle
- new acoustical insulation

post id: 7921255671

posted: 2026-03-14 16:58

updated: 2026-03-21 17:10

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1966 Ampeg B-15NF Portaflex bass amplifier - musical instruments -...

The best recording bass amp ever made! NF is arguably the best version. Rare to find one locally and in this great condition. Fully restored electrically and mechanically. Sounds awesome and super...