Pump Preamp is a versatile gain-staging tool that offers a range of tonal possibilities. Whether you’re using it as a clean boost to elevate your sound or driving the preamp of your guitar amp for crisp, dynamic breakup, this preamp delivers exceptional flexibility. You can even plug it into the return jack of your amp to replace the amp’s preamp section or go direct into a PA mixer console to shape your tone right at the source. The Pump Preamp features three tone-shaping controls: Treble, Bass, and a Flat/Lowcut switch. The Flat/Lowcut switch is particularly useful for taming low-end frequencies below 200Hz, helping prevent high-gain guitars from clashing with bass guitars in the mix. It offers a smooth -6dB cut below 200Hz, keeping your tone tight and focused. Additionally, it can double as a high-quality external studio preamp, giving you even more ways to use it in both live and studio environments.
FEATURES
- Jinx-designed Circuit
- Dimensions (W x D x H): 70 x 115 x 50 mm
- 2-Band Active Bass & Treble EQ Side-Mount Input / Output ¼” Mono Jacks
- Power Consumption: 10 mA Running Voltage: 9-18V
- Powered by Center-Negative AC Adapter (Not Included)
Isolated Guitar Track Samples
⚠️ California Proposition 65 Warning: This product may contain chemicals known to the State of California to cause cancer and reproductive harm. Learn more at http://www.P65Warnings.ca.gov.








DaveyZ (verified owner) –
Glad I gave this new brand a shot
I use it “always on” at the end of my pedalboard, it gives flavor to the sound and revives the overall signal