The Gigagain GP04 Screamer Overdrive is a versatile TS-style overdrive pedal based on the classic Tube Screamer sound. It combines TS808 and TS9 settings in a single unit, allowing you to switch quickly between two well-known overdrive profiles.
At the heart of the pedal is an analogue circuit with a Japanese JRC4458D op-amp and carefully selected tantalum capacitors. Together, these components provide a dynamic, musical TS-style tone with strong response and clarity.
Flexible tone shaping
The built-in switches provide more tonal flexibility than a traditional Tube Screamer:
- BB (Bass Boost) adds extra depth and fullness. It is well suited to guitars with single-coil pickups or to achieving a more powerful sound.
- Scoop reduces the midrange and boosts the bass and treble for a more modern and aggressive character.
- 808/9 lets you choose between the warm, smooth TS808 sound and the more biting TS9 tone.
Overdrive and boost
The GP04 can be used both as a classic overdrive and as a boost in front of your amplifier. Used as a boost, it can push the preamp harder and contribute to a tighter, more aggressive and sustain-rich distortion, making it suitable for rock and metal.
Construction and operation
The pedal features a robust aluminium enclosure, an analogue circuit and a compact format that makes it easy to integrate into a pedalboard. A dedicated power switch allows the power to be turned off completely, helping to prevent unnecessary battery drain and protecting the components. Buffered bypass provides a stable signal path.
Specifications
- Type: TS-style overdrive
- Power: DC 9 V, centre negative
- Bypass: Buffered bypass
- Circuit: Analogue
- Op-amp: JRC4458D
- Connection: 6.35 mm jack (TS)
- Material: Aluminium
- Weight: 300 g
- Dimensions: approx. 114.5 x 63 x 32.5 mm