MXR M81 Bass Preamp Pedal

£179.99

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 […]


Description

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.

Brand

MXR

MXR is a renowned manufacturer of guitar effects pedals and audio electronics, recognized for their classic designs and high-quality sound. Established in the 1970s, MXR has played a significant role in shaping the landscape of effects pedals, producing iconic units that have become staples in countless musicians’ rigs. The company’s pedals are celebrated for their rugged construction, intuitive controls, and versatile tones, making them popular among guitarists and bassists across genres.

MXR’s product lineup encompasses a wide range of effects categories, including distortion, delay, modulation, and more. Some of their most notable pedals include the Phase 90 phaser, the Dyna Comp compressor, and the Carbon Copy analog delay, all of which have earned legendary status among players for their distinctive sound and reliability. With a legacy of innovation and a commitment to quality, MXR continues to be a respected name in the world of guitar effects, inspiring musicians to explore new sonic possibilities and express themselves creatively.

Category

MXR

Tags

bass

Preamp

A preamp pedal shapes and boosts your guitar’s signal before it reaches your amp or recording interface, giving you control over tone, gain, and headroom. It acts as the first stage of amplification, adding warmth, clarity, and character while preparing your signal for the next part of the chain. Some preamps emulate the response of classic valve circuits, while others offer clean, transparent tone shaping ideal for acoustic instruments or direct recording setups.

Used on its own, a preamp pedal can serve as the foundation of your tone, providing a consistent core sound wherever you play. When combined with other effects, it enhances dynamics and helps each pedal sound more defined and natural. Whether you’re looking to push your amp harder, bring life to a dull signal, or refine your sound for the studio, a good preamp pedal adds presence, punch, and musicality to any rig.

Preamp & Amp Sim Pedals