AMPEG B-15X PORTAFLEX Description
- 50W, 1-15 in. speaker with a horn tweeter and 2-4 in. "echo" speakers, multi-purpose piggyback/combo Portaflex design, 10-tube chassis: preamp: 1 X 6SL7, 1 X 6SN7, 1 X 7199, 2 X 6D10, 1 X 7591, power: 2 X 7027A, 1 X 6V6, rectifier: 5AR4, two channels, vibrato, reverb, front chrome control panel, five inputs (two per channel and one for stereo), nine knobs (Ch. 1: v, t, b, echo dimension [reverb], s, i, Ch. 2: v, t, b), footswitch jack, rear panel: power switch, ground switch, standby switch, extension speaker jack, echo speaker jack, extension amplifier jack, illuminated lucite panel with Ampeg logo and optional owner's monogram, two-button footswitch, available in Blue Check covering with a gray grille, mfg. 1964-67.
This model was also available with a Lansing speaker and called the B-15XL.