100W All-Tube Bass Head is a remarkable reissue of the legendary 1971 original, delivering the pure tube tone and unmistakable grind that earned the classic a place in bass history. And with a careful selection of modern features, the V-4B provides Ampeg all-tube tone in a portable design perfect for today’s players.

Preamp: Tube (2 x 12AX7)
Driver Tubes: (1 x 12AX7, 1 x 12AU7)
Power Amp: (4 x 6L6GC)
RMS Power Handling: 100 Watts RMS
Speaker Outputs: 1 x 8 ohm, 2 x 4 ohm, 2 x 2 ohm
Tone Controls: 3-band
Mid Tone Control: 3-position rocker switch
Ultra Hi/Lo: Yes
-15 dB Input: Yes
Balanced Line Out: Yes
Preamp Out / Power Amp In: Yes
Slave Output: Yes
Dimensions (W x H x D inches): 24 x 11 x 11
Weight: 41 Pounds