Ampeg|HERITAGE 50 ANNIV SVT 120V 貝司音箱
Preamp Tubes: 5 x 12AX7
Driver Tubes: 1 x 12AX7, 2 x 12AU7
Power Amp Tubes: Ampeg Super Valve (6 x 6550)
Output Power Rating: 300W RMS minimum continuous @ <5% THD into @ 2 or 4
Signal-to-Noise Ratio: (20 Hz – 20 kHz) 75 75 dB (20 Hz - 20 kHz)
Maximum Gain: 78 dB @ 1 kHz –3 dB @ 20 Hz & 15 kHz
Tone Controls
Channel One: Voiced after original 1969 "Blue Line" SVT (jumpable)
Channel Two: Voiced after mid 70's Magnavox era SVT (jumpable)
Bass: +12/-12 dB @ 40 Hz
Midrange: +10/-20 dB @ 220 Hz, 450 Hz, 800 Hz, 1.6 kHz, or 3 kHz
Treble: +15/–20 dB @ 4 kHz
Ultra Lo: +2 dB @ 40 Hz, -10 dB @ 500 Hz
Ultra Hi: +9 dB @ 8 kHz