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Audio Specifications| signal to noise ratio | 75 dB |
|---|---|
| maximum gain | +18 dB |
| bass tone control | +7/–20 dB @ 40 Hz |
| mid tone control | +5/–11 dB @ 500 Hz |
| treble tone control | +10/–10 dB @ 4 kHz |
| ultra hi | +7 dB @ 8 kHz |
| ultra lo | +2 dB @ 40 Hz / –10 dB @ 500 Hz |
Impedance| input impedance | 1 M @ Normal, 83 k w/–15 dB Pad |
|---|---|
| output impedance | 120 |
Power Requirements| internal power | 9V Battery |
|---|---|
| external power | 9VDC, ≥20 mA, center negative |
Weight and Dimensions| size (H x W x D) | 2.2 in x 2.6 in x 4.5 in |
|---|---|
| size (H x W x D) metric | 56 mm x 66 mm x 114 mm |
| weight | 0.6 lb / 0.3 kg |
Overview of the Ampeg Classic Analog Bass Preamp pedal and its capabilities.
Highlights of the pedal's authentic Ampeg tones, 3-band EQ, and flexible circuits.
Details on the input jack, true bypass switch, and engagement LED.
Explanation of Volume, Bass, Mid, and Treble controls for sound shaping.
Information on switches for enhancing low-end (Ultra Lo) and high-end (Ultra Hi).
Description of the output jack and its connection possibilities.
Details on the 9V DC power input and compatible power supplies.
Information on accessing the pedal's interior for battery and jumpers.
Instructions for powering the pedal using a 9V battery.
Guide to setting the internal jumper for input signal attenuation.
Recommended control settings for a "Slappin' Da Bass" tone.
Recommended control settings for a "Rock" bass tone.
Recommended control settings for a "Reggae" bass tone.
Recommended control settings for a "Motown" bass tone.
Recommended control settings for a "Classic Dino" bass tone.
Recommended control settings for a "Pick/Grind" bass tone.
Visual representation of the pedal's internal signal path and circuitry.
Detailed electrical and physical specifications of the pedal.
Guidance on obtaining technical support, service, and warranty information.
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