Boost (Clean Boost / Buffer / Line Driver) · $278.13
The NRG Effects Pumper is an analog clean Boost / Buffer / Line Driver pedal, with 3-knob version: Gain (boost amount, unity to over 25dB), LPF and HPF post-boost treble/bass roll-off filters. 1-knob mini version: Gain only. Previous 4-knob/2FS version: two independent footswitchable Gain controls plus LPF and HPF controls, made in UK. From $278.13.
| Category | Boost (Clean Boost / Buffer / Line Driver) |
| Signal | Analog |
| Controls | 3-knob version: Gain (boost amount, unity to over 25dB), LPF and HPF post-boost treble/bass roll-off filters. 1-knob mini version: Gain only. Previous 4-knob/2FS version: two independent footswitchable Gain controls plus LPF and HPF |
| Footswitches | 1 on the 1-knob and 3-knob versions; 2 on the 5-knob version (previous generation used the second footswitch to select between two independent Gain settings) |
| Bypass | Mechanical true bypass |
| True bypass | Yes |
| I/O | 1x input, 1x output, 9VDC socket, all top-edge mounted; low-capacitance braided-shield passive in/out cabling |
| Power | 9V DC (centre negative, 2.1mm barrel); internal voltage-doubling circuitry |
| Dimensions | 112 x 60 mm (standard versions; mini version size not stated) |
| Country of manufacture | UK |
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