EQ / Preamp (buffer / board preamp with 9V power extension)
The A3 Stompbox Tone Solution is an analog buffer / board preamp with 9V power extension pedal, made in South Korea.
| Category | EQ / Preamp (buffer / board preamp with 9V power extension) |
| Signal | Analog |
| Bypass | buffered |
| I/O | Input, Output, Send, Return |
| Power | 9V DC (center negative) |
| Power draw | 35 mA |
| Dimensions | 112 x 95 x 32 mm |
| Country of manufacture | South Korea |
Closest matches from other makers, by spec and circuit.