AMT WH-1 is an optical version of a classic “WAH-WAH” effect with bandpass filter range selection (3-way switch). Optical frequency control increases the service life of the effect eliminating frequent replacements of maintenance and replacement of the control potentiometer.

AMT WH-1 features low noise and expanded frequency tuning range due to the use of original JFET-based circuit design. AMT WH-1 boasts great versatile sound and processes both clean guitar sound and Ultra high gain overdrive equally well. 

Product Page

Review by Berklee Online

Review by bonedo

Manual

WH1 Japanese Girl Wah

The SS-30 is a 3 channel JFET preamp loaded with maximum power and crunch. The SS-30 Bulava pedal is a non-tube JEFT driven preamp, offering modern high gain metal tones in a small portable enclosure. Priced at a consumer friendly cost, the SS-30 is sure to win the most punch for the buck award. Just listen to the demo and decide for yourself!

Review by AMAZONA

SS-30

Review by gearspace

SS-11 A

AMT EX-50 Product Page 

AMT EX-50 Manual 

EX-50

We are happy to present "Little Loudmouth" LLM-2 optical volume control pedal created in close collaboration with musicians! Now it allows you to completely mute your instrument in the lower position of the pedal.

The active volume control pedal is designed for guitar and keyboards volume control. The pedal has high input impedance of 1MOhm and low output impedance - 10 KOhm which makes it easy to integrate it into any effect chain without signal quality loss.

Review by Talk Bass.com