FACTOIDS & TRIVIA
In 1969, Ampeg unleashed its 300 watt SVT amp. A year later, the V-4B was introduced. At 120 watts, it filled a niche between the B-25B and the SVT. It's folded horn enclosure sounds great and is best suited to large venues. The V-4B was such an enduring bass amp that St. Louis Music recently reissued it.
1977 AMPEG V-4B head and cabinet
Power Amp: Tube; 4 x 7027A, 120 watts RMS @ 4 ohms
Preamp: Tube; 2 x 12AX7, 1 x 12AU7, 1 x 12DW7, 1 x 6K11
Rectifier: Solid state
Speakers: 2 x 15" Electro Voice EVM15L
Channels: 2; 1 input per channel
Effects: Reverb
Controls: Volume for each channel, bass, midrange, treble, reverb intensity, 3-way midrange selector, ultra hi switch, sensitivity switch
Head Dimensions: 10 H x 26 5/8 W x 11 1/8 D inches
Speaker Cabinet Dimensions: 48 H x 27 W x 24 D inches
Total Weight: Way too heavy... trust
me on this.