Filter / Wah (Bass Wah)
The AMT Electronics AMT WH-1B is an analog bass Wah pedal based on the optical wah, with 3-way bandpass filter range switch (0.22-2kHz / 0.15-1kHz / 0.1-0.6kHz); effect engaged by pressing movable front end of pedal; adjustable pedal travel via axial screw controls, made in Russia.
| Category | Filter / Wah (Bass Wah) |
| Circuit / based on | optical wah |
| Signal | Analog |
| Controls | 3-way bandpass filter range switch (0.22-2kHz / 0.15-1kHz / 0.1-0.6kHz); effect engaged by pressing movable front end of pedal; adjustable pedal travel via axial screw |
| Switches | 3-way bandpass filter range switch |
| Bypass | true |
| True bypass | Yes |
| Power | 9-12V DC adapter or 9V battery |
| Battery power | Yes |
| Enclosure | standard |
| Dimensions | 110 x 62 x 58 mm |
| Weight | 0.45 kg (without battery) |
| Country of manufacture | Russia |
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