Here's what Big Joe Stompbox says about the R-409 Tremolo Pedal:
The Big Joe Tremolo is a 9V-18V, 5-knob, all analog, true bypass, vactrol based optical tremolo. The Speed and Intensity knobs set and control modulation effect between 1Hz-10Hz. Shape control varies wave form from square to triangle so you can have new wave or vintage character; Vox to Fender and anywhere in between. Tone control allows you to alter the mood and “make-up” for potential tone loss associated with the tremolo action. Output control functions as a gain trim pot control and helps to “make-up”, recover or punch up the gain structure so there is no loss of tone or volume going through the pedal, and both can be enhanced by twisting a couple of knobs. A very unique and organic sounding tremolo pedal.
- Controls: Tone, Shape, Output, Speed, Depth
- True bypass
- Status LED
- 6.3 mm Mono jack input/ output
- Power supply with 9V battery or 9VDC power supply (2.1 mm x 5.5 mm barrel connector, polarity (-) inside, not included)
- 12V and 18V support
- Dimensions (L x W x H): 5.5" x 4" x 2.5"
- Weight: 22oz