Here's what Big Joe Stompbox says about the R-403 Vintage Tube Overdrive Pedal:
9V Syrupy smooth warm tube dynamics with plenty of bark. This box is reminiscent of vintage tube amps pushed to their limits. Two- position toggle provides additional low end boost similar to a close miked amp. There is plenty of gain here, but this box is all about pick attach and tone. It is very transparent and responsive. The harder you play the more it bites back.
- Controls: Presence, Gain, Output, 2-position low boost toggle
- True bypass
- Status LED
- 6.3 mm Mono jack input/ output
- Power supply with 9V battery via 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