MXR M81 Bass Preamp Pedal

£169.99

Guitars Pedals Amps & Stuff are excited this week as the almighty MXR M81 Bass Preamp Pedal is now back in stock. These are built to an exceptionally high standard. We deliver MXR Guitar FX straight to your door via our tracked *roadie service* across the UK, Europe, and the USA. A firm favourite among the finest gear available in the UK. if you want the full low down, click through to the MXR crew direct for more details, images, specs, and all the good stuff. The MXR Bass Preamp is like an amp in a box, with all the…

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Guitars Pedals Amps & Stuff are excited this week as the almighty MXR M81 Bass Preamp Pedal is now back in stock. These are built to an exceptionally high standard. We deliver MXR Guitar FX straight to your door via our tracked *roadie service* across the UK, Europe, and the USA. A firm favourite among the finest gear available in the UK. if you want the full low down, click through to the MXR crew direct for more details, images, specs, and all the good stuff.

The MXR Bass Preamp is like an amp in a box, with all the powerful tone controlling features you need to sculpt your perfect tone. So you can use it with the DI out XLR output to go straight to the PA and enjoy direct to PA subs thundering tone that’s pure and simple. Or you can put it in front of your favourite amp to give you more tonal options and flexibility. You can use it to drive a tube amp or just give any amp more balls!

Here’s what MXR say about the Bass Preamp

The MXR Bass Preamp combines a pristine bass preamp with a studio-quality Direct Out in a Phase 90-sized box, providing clear tone without hogging precious pedalboard space. Use it to add a new voice to an old passive bass, sweeten up any amp, or put some special sauce on a particular song. Dial it in just the way you want it and send it straight to the house-pre or post-EQ-with the built-in Direct Out.

The Bass Preamp features separate INPUT and OUTPUT level controls and a 3-band EQ section with sweepable midrange-from 250hz to 1khz-for extensive tonal flexibility. It’s all delivered super clean with high headroom thanks to our own Constant Headroom Technology, and you can use the PRE/POST EQ switch to set whether or not your Direct Out signal is affected by the Bass Preamp’s EQ section. And of course, the Bass Preamp features a GROUND LIFT switch in case you encounter ground loop hum.

The Bass Preamp is factory preset to operate in 1/4″ out buffered bypass and Direct Out active. For players who only want to use the 1/4″ out, there are two internal switches that disable the Direct Out and 1/4″ out buffered bypass for true 1/4″ out bypass mode.

Stuff About MXR

MXR is one of the most respected names in effects pedals, known for its rugged design, simplicity, and legendary tones. Founded in New York in the early 1970s, MXR quickly made its mark with classics like the Phase 90, Dyna Comp, and Distortion+, which became staples on countless pedalboards. Now part of the Dunlop family, MXR continues to innovate while maintaining the straightforward, no-nonsense approach that players love. Whether delivering subtle modulation, rich overdrive, or tight compression, MXR pedals are built to last and designed to perform, offering timeless sounds that have shaped decades of music.

The Important stuff

Guitar FX — Guitar effects pedals add character, texture, and personality to your sound. From subtle ambience and reverb to heavy distortion or experimental modulation, effects shape how your guitar interacts with the world. A good setup starts with the basics like overdrive, delay, and chorus, then expands into creative territory with fuzz, phaser, or looper pedals. Whether you want vintage tones or modern soundscapes, experimenting with different combinations will help you discover your own signature style.. preamp.

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