Ampeg V4BH User Manual

Ampeg reserves the right to change specifications without notice.
Ampeg is proudly Made in America. ©1999 SLM Electronics, 1400 Ferguson Avenue, St. Louis, MO 63133 U.S.A.
P/N 47-509-42 • 092805
V4BH Bass Amplifier
www.ampeg.com
Technical Specifications
OUTPUT POWER RATING 100 watts RMS minimum continuous @ <3% THD into 4 or 8Ω, 0.7VRMS input
TOTAL SYSTEM GAIN 59dB @ 1kHz with levels up and tones flat, -3dB @ 30Hz and 12kHz
TONE CONTROL RANGE
BASS: ±12dB @ 40Hz
MIDRANGE: +10dB, -20dB @ 220, 450, 800, 1.6k or 3kHz
TREBLE: +15dB, -20dB @ 4kHz
ULTRA LOW: +2dB @ 40Hz, -10dB @ 500Hz
ULTRA HIGH: +9dB @ 8kHz
PRESENCE: +6dB @ 10kHz
SIGNAL TO NOISE RATIO 80dB typical
TUBE COMPLEMENT (2) 12AX7, (2) 12AU7, (4) 6L6/5881
POWER REQUIREMENTS 115VAC, 60Hz, 190VA; 100/115VAC, 50/60Hz, 190VA; 230VAC, 50/60Hz, 190VA
SIZE (W x H x D) AND WEIGHT 23-3/4” W x 11” H x 12-3/4” D, 40 lbs.

Ampeg V4BH Specifications

Power

output power rating	100 watts RMS
power requirements	115VAC, 60Hz, 190VA; 100/115VAC, 50/60Hz, 190VA; 230VAC, 50/60Hz, 190VA

Audio Specifications

total system gain	59dB @ 1kHz
tone control range - bass	±12dB @ 40Hz
tone control range - midrange	+10dB, -20dB @ 220, 450, 800, 1.6k or 3kHz
tone control range - treble	+15dB, -20dB @ 4kHz
ultra low	+2dB @ 40Hz, -10dB @ 500Hz
ultra high	+9dB @ 8kHz
presence	+6dB @ 10kHz
signal to noise ratio	80dB typical

Tube Complement

12AX7 tubes	2
12AU7 tubes	2
6L6/5881 tubes	4

Weight and Dimensions

width	23-3/4”
height	11”
depth	12-3/4”
weight	40 lbs