- 35W @ 8 ohms, 1-12 in. Ampeg Custom (SS-35A) speaker, solid-state chassis, two channels, reverb, front black control panel, two inputs, nine knobs (Ch. A: g, level with push/pull channel select, p, Ch. B: l, m, h, level with push/pull bright switch, r), footswitch jack, headphone jack, line out, power switch, external speaker jack on rear panel, black covering, black and blue speaker grille (early models) or black grille (later models), 19.25 in. wide, 17.5 in. tall, 9.75 in. deep, mfg. 1987-1992.

- 70W @ 8 ohms (90W @ 4 ohms), 1-12 in. Celestion G12K-85 (SS-70) or 1-12 in. Ampeg Custom (SS-70A) speaker, solid-state chassis, two channels, reverb, front black control panel, two inputs, 12 knobs (Ch. A: g, l, ultra mid, h, level with push/pull channel switch, Ch. B: g, l, m, h, level with push/pull bright switch, All: reverb A, reverb B), power switch, rear panel: 1/4 in. preamp out, 1/4 in. power amp in, footswitch jack, two speaker jacks, AC convenience outlet, polarity switch, headphone jack, speaker mute switch, black covering, black and blue speaker grille (early models) or black grille (later models), 20.75 in. wide, 20.5 in. tall, 11.75 in. deep, mfg. 1987-1990.

- similar to the SS-70, except in head-unit configuration, 20.5 in. wide, 10.75 in. tall, 9.125 in. deep, mfg. 1987-88.

- 70W @ 8 ohms (2 X 35W stereo), 2-10 in. Celestion (SS-70C) or 2-10 in. Ampeg Custom (SS-70C) speakers, solid-state chassis, two channels, chorus, reverb, front black control panel, two inputs, 11 knobs (Ch. A: g, level with push/pull channel switch, p, All: l, m, h, level with push/pull bright switch, r, chorus depth, chorus rate), effects loop, headphone jack, power switch, rear panel: two footswitch jacks, left and right 1/4 in. and balanced XLR line outs, two speaker jacks, black covering, black and blue speaker grille (early models) or black grille (later models), 23.75 in. wide, 17.5 in. tall, 9.75 in. deep, mfg. 1987-1992.

- 140W @ 8 ohms (2 X 70W stereo, or 180W @ 4 ohms 2 X 90W stereo), 2-12 in. Ampeg Custom speakers, solid-state chassis, two channels (overdrive and clean), chorus, reverb, front black control panel, two inputs, 15 knobs (Ch. A: g, l, ultra mid, h, level with push/pull channel switch, Ch. B: g, l, m, h, level with push/pull bright switch, All: reverb A, reverb B, chorus depth A, chorus depth B, chorus rate), effects loop, power switch, rear panel: two footswitch jacks, left and right power amp line out/line in jacks, left and right balanced XLR line outs, four speaker jacks, 1/4 in. mono mix jack, AC convenience outlet, polarity switch, black covering, black and blue speaker grille (early models) or black grille (later models), 27.75 in. wide, 19.75 in. tall, 11.75 in. deep, mfg. 1987-1990.

- similar to the SS-140C, except in head-unit configuration, 27.75 in. wide, 10.75 in. tall, 9.125 in. deep, mfg. 1987-89.

- 150W @ 8 ohms (200W @ 4 ohms), 1-12 in. Celestion Sidewinder (SS-150) or 1-12 in. Ampeg Custom (SS-150A) speaker, solid-state chassis, two channels, reverb, front black control panel, two inputs, 12 knobs (Ch. A: g, l, ultra mid, h, level with push/pull channel switch, Ch. B: g, l, m, h, level with push/pull bright switch, All: reverb A, reverb B), power switch, rear panel: 1/4 in. preamp out, 1/4 in. power amp in, footswitch jack, two speaker jacks, AC convenience outlet, polarity switch, black covering, black and blue speaker grille (early models) or black grille (later models), 20.75 in. wide, 20.5 in. tall, 11.75 in. deep, mfg. 1987-1991.

- similar to the SS-150, except in head-unit configuration, 20.5 in. wide, 10.75 in. tall, 9.875 in. deep, mfg. 1987-1990.

- 140W mono/70W per side stereo, 2-12 in. Ampeg Custom speakers in separate infinite baffle housings, 4 ohm impedance mono/8 ohm impedance stereo, straight front, black covering, black and blue grille cloth, 27.75 in. wide, 17.5 in. tall, 11.75 in. deep, mfg. 1987-88.

- 280W mono, 4-12 in. Celestion G12M-70 speakers, 4 ohm or 16 ohm switchable impedance mono, angled front (SS-412ES) or straight front (SS-412ER), recessed side handles, casters, black covering, black and blue speaker grille (early models) or black grille (later models), 30.25 in. wide, 30.25 in. tall, 14.25 in. deep, mfg. 1987-1990.