The legendary tone and portability of the all-tube Ampeg Portaflex amplifiers is faithfully reproduced in the PF-20T. This all-tube Portaflex head provides a harmonically rich and studio-worthy 20 watts of pure Ampeg tone to satisfy the most discerning bass player. Featuring simple user-adjustable bias adjustment for easy tube replacement and pre-amp and transformer balanced direct outs for maximum versatility. Plus, no speaker load is required for silent recording or even use as a dedicated tube DI. Pair it with the PF-112HLF for the ultimate compact all-tube bass rig.\n

Technical Specifications

\nRMS power output\n20W @ 4 or 8 ohms\nPreamp\nAll-tube [2] x 12AX7\nPower amp\nAll-tube [2] x 6V6\nTone controls\nBass, Mid, Treble\nInput gain control\nPreamp balanced line out\nPre/Post EQ\nGround lift\nTransformer balanced line out\nGround lift\nUser adjustable bias control\nDimensions (H x W x D inches)\n7.3 x 13.0 x 10.4 in\n185 x 330 x 264 mm\nWeight\n15.2 lb / 6.9 kg