The Ampeg V4B features the pre-amp section of the SVT. At 100 watts, the V4B provides excellent tone with manageable power level compared to the 300 watt SVT.

Four 6L6GC units run the power section, 12AX7 tubes are used for preamp, and a 12AU7 is used for the driver. Speaker outputs are 1x8 ohm, 2x4 ohm, and 2.2 ohm.

Cosmetically the amp has scuffs and scratches throughout. The Ampeg logo is also missing from the grille cloth. The amp is fully functional.