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Technical Specifications:
CRATE/SLM ELECTRONICS, ADIVISION OF ST. LOUIS MUSIC, 1400 FERGUSON AVENUE, ST. LOUIS, MO 63133
47-599-02 • 02-96
CRATE continually develops new products, as well as improves existing ones. For this reason,
specifications and information in this manual are subject to change without notice.
Output Power Rating 350 watts @ 0.2% THD, 4 ohm load – 120VAC
200 watts @ 0.2% THD, 8 ohm load – 120VAC
Gain @ 1kHz 61dB, tones at “5”
Tone Control Range
Low Boost +8dB @ 20Hz
Low ±13dB @ 40Hz
Mid ±11dB @ 260Hz
High ±15dB @ 5kHz
High Boost +10dB @ 10kHz
Graphic EQ Level +8dB, -10dB
Graphic EQ Range ±12dB @ 40Hz, 100Hz, 250Hz, 625Hz, 1.6kHz, 4kHz, 10kHz
Signal to Noise Ratio 84dB typical
Input Impedance 0dB input: 1M ohm
-15dB input: 122k ohm
Maximum Signal Level Accepted 0dB input: 2.5V peak to peak
-15dB input: 14V peak to peak
Tube Type: 12AX7 (preamp)
Effects Loop Level 1V RMS for full power output
Power Requirements
Domestic 120VAC, 60 Hz, 10A
Export 240VAC, 50 Hz, 5A
Size and Weight 5.25”H x 19”W x 15.75”D, 36 lbs.
BT-350
BT-350 ThunderBass Amplifier