The PF-20T captures the portable, all-valve character of Ampeg’s classic Portaflex amplifiers in a compact 20-watt bass head. Its all-tube preamp and power amp deliver harmonically rich Ampeg tone suited to both stage and studio use.
A user-adjustable bias control simplifies valve replacement, while preamp-balanced and transformer-balanced direct outputs provide flexible recording and live options. The PF-20T can also operate without a speaker load, allowing for silent recording or use as a dedicated valve DI.
RMS output: 20W at 4 or 8 ohms
Preamp: 2 × 12AX7 valves
Power amp: 2 × 6V6 valves
Controls: Input Gain, Bass, Mid, Treble
Outputs: Preamp-balanced line out; transformer-balanced line out
Other features: User-adjustable bias control; no speaker load required for silent recording or DI use
Weight: 6.9 kg (15.2 lb)
120V US Model. Requires step-down transformer for Australian use. Includes US IEC and speaker cable.
