--- product_id: 4347902 title: "MXR® Bass Preamp" brand: "mxr" price: "£259.44" currency: GBP in_stock: true category: "Mxr" url: https://www.desertcart.co.uk/products/4347902-mxr-bass-preamp store_origin: GB region: United Kingdom --- # Separate Input & Output level controls Studio-quality Direct Out 3-band EQ with sweepable midrange MXR® Bass Preamp **Brand:** mxr **Price:** £259.44 **Availability:** ✅ In Stock ## Summary > 🎸 Elevate your bass game with studio-grade tone in a pedalboard-friendly package! ## Quick Answers - **What is this?** MXR® Bass Preamp by mxr - **How much does it cost?** £259.44 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/4347902-mxr-bass-preamp) ## Best For - mxr enthusiasts ## Why This Product - Trusted mxr brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Compact Powerhouse:** Phase 90-sized footprint saves pedalboard real estate without compromising tone. - • **Noise-Free Performance:** Ground Lift switch and Constant Headroom Technology™ ensure clean, hum-free output. - • **Dynamic Control Mastery:** Separate Input and Output level knobs give you ultimate command over your signal chain. - • **Precision Tone Sculpting:** Sweepable midrange EQ lets you craft your signature bass voice with surgical accuracy. - • **Pro-Grade Signal Routing:** Studio-quality Direct Out delivers pristine sound straight to the house or recording rig. ## Overview The MXR Bass Preamp M81 is a compact, solid-state bass preamp pedal featuring a 3-band EQ with sweepable midrange, separate input/output level controls, and a studio-quality Direct Out. Designed to enhance passive basses or amp tones, it offers flexible signal routing with PRE/POST EQ switching and noise reduction via a Ground Lift switch. Its small footprint and high headroom technology make it a must-have for professional bassists seeking pristine, customizable tone on stage or in the studio. ## Description 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 ¼" out buffered bypass and Direct Out active. For players who only want to use the ¼" out, there are two internal switches that disable the Direct Out and ¼" out buffered bypass for true ¼" out bypass mode. ## Features - Separate INPUT & OUTPUT level controls - 3-band EQ section with sweep able midrange - Studio-quality Direct Out - Model Number: M81 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00I3TOXVM | | Amplifier Type | Solid State | | Audio Output Mode | Direct Out, PRE/POST EQ | | Best Sellers Rank | #47,590 in Musical Instruments ( See Top 100 in Musical Instruments ) #116 in Guitar Signal Path & Pedal Tuners #314 in Bass Guitar Effects #12,424 in Guitar & Bass Accessories | | Brand | MXR | | Compatible Devices | Double Bass | | Connector Type | 6.35mm Jack | | Customer Reviews | 4.7 out of 5 stars 196 Reviews | | Enclosure Material | Metal or Durable Plastic | | Global Trade Identification Number | 00710137072770 | | Item Dimensions D x W x H | 2.5"D x 5.5"W x 4.5"H | | Item Type Name | Power Amplifier | | Item Weight | 8 ounces | | Manufacturer | Jim Dunlop | | Material | Metal or Durable Plastic | | Mfr Part Number | M81 | | Model Name | M81 | | Model Number | M81 | | Number of Bands | 3 | | Output Channel Quantity | 2 | | Output Wattage | 15 Watts | | Power Source | Corded Electric | | Product Dimensions | 2.5"D x 5.5"W x 4.5"H | | Sound Profile | Adjustable EQ for versatile sound profile | | UPC | 710137072770 | | Unit Count | 1.0 Count | | Warranty Description | Dunlop manufacturing, inc. Will repair or replace, at its discretion, defective workmanship or materials on all new dunlop electronics directly or through the selling dealer or authorized service technician, for one year from the date of purchase, at no cost to the original purchaser. Repair or replacement parts installed will then be warrantied for the unexpired portion of the original warranty t… | ## Product Details - **Brand:** MXR - **Compatible Devices:** Double Bass - **Item Weight:** 0.5 Pounds - **Output Wattage:** 15 Watts - **Product Dimensions:** 2.5"D x 5.5"W x 4.5"H ## Images ![MXR® Bass Preamp - Image 1](https://m.media-amazon.com/images/I/71nSQxvoIXS.jpg) ![MXR® Bass Preamp - Image 2](https://m.media-amazon.com/images/I/61ScmcEhWhL.jpg) ![MXR® Bass Preamp - Image 3](https://m.media-amazon.com/images/I/61snphWbM6L.jpg) ![MXR® Bass Preamp - Image 4](https://m.media-amazon.com/images/I/61FUIjrYn8L.jpg) ![MXR® Bass Preamp - Image 5](https://m.media-amazon.com/images/I/61kdaFS5oiL.jpg) ## Frequently Bought Together - Jim Dunlop Power Amplifier (11081000001) - D'Addario Accessories PW-CT-9V DC Power Adapter – Pedalboard Power Supply - Minimize Need to Change Batteries on Pedalboard and Other Devices Requiring 9V – Guitar Pedal Power Supply - MXR Patch Cable 6 in|15 cm - 3 Pack (3PDCP06) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/4347902-mxr-bass-preamp](https://www.desertcart.co.uk/products/4347902-mxr-bass-preamp) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-07-12*