WH-1

The AMT WH-1, also known as the Japanese Girl Wah pedal, is an optical version of a classic "WAH-WAH" effect with bandpass filter range selection through a three-way switch. It features 100% analog WAH-WAH effect, true bypass, and fixed effect selection by pressing the movable front end part of the pedal. The pedal also includes removable support feet, effect monitoring by using blue LEDs on both pedal sides, and adjustable pedal movement by means of an axial screw. It is powered by a 9-12V DC adapter or 9V battery, with low power consumption (approximately 7mA). The pedal has a small size of 110 x 62 x 58 mm and weighs 0.45 kg (without the battery).

The bandpass filter ranges are fixed at 0.2-1kH, 0.3-1.5 kH, and 0.4-2kH, offering versatile sound processing for both clean guitar sound and ultra-high gain overdrive. The steel heavy body of the pedal is stable and confidently responds to foot control, making it suitable for various playing styles. The AMT WH-1 is designed for electric guitar and is constructed from steel material. It is equipped with a true bypass switch and operates within a range of 9-12V DC power, with the power supply connector polarity being minus inside and plus outside.

The pedal's compact size makes it easy to fit into a guitar case, offering convenience for transportation. Additionally, the optical frequency control increases the service life of the effect, eliminating frequent replacements and maintenance of the control potentiometer.