---
product_id: 4347902
title: "Bass Preamp"
brand: "mxr"
price: "AED 1006"
currency: AED
in_stock: true
reviews_count: 13
category: "Mxr"
url: https://www.desertcart.ae/products/4347902-bass-preamp
store_origin: AE
region: United Arab Emirates
---

# High headroom with Constant Headroom Technology Studio-quality Direct Out 3-band EQ with sweepable mids Bass Preamp

**Brand:** mxr
**Price:** AED 1006
**Availability:** ✅ In Stock

## Summary

> 🎸 Elevate your bass tone with pro precision and pedalboard-friendly power!

## Quick Answers

- **What is this?** Bass Preamp by mxr
- **How much does it cost?** AED 1006 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ae](https://www.desertcart.ae/products/4347902-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 space without sacrificing pro-grade features.
- • **Clean Signal Integrity:** Constant Headroom Technology ensures your tone stays pristine, even at high volumes.
- • **Versatile Connectivity:** Separate input/output controls plus a pre/post EQ Direct Out for seamless stage or studio integration.
- • **Ground Loop Elimination:** Built-in ground lift switch banishes hum for crystal-clear live and recording sessions.
- • **Precision Tone Sculpting:** Sweepable midrange EQ lets you dial in your signature bass voice with surgical accuracy.

## Overview

The MXR Bass Preamp M81 is a compact, studio-quality bass preamp pedal featuring a 3-band EQ with sweepable midrange, separate input and output level controls, and a versatile Direct Out with pre/post EQ switching. Designed for professional bassists, it delivers clean, high-headroom sound with built-in ground lift to eliminate hum, all in a space-saving Phase 90-sized enclosure.

## 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.

Review: Fantastic Bass Preamp Pedal - I tried a lot of preamps. The MXR M81 has all these features that made me buy and keep it. - Sounds great and doesn't change the character of my bass of amp. - Can run on battery, phantom power or standard A/C adapter. - DI on board with pre/post switch and ground lift. - Plenty of headroom. I can run direct into a power amp if needed. - Small form factor (like a Phase 90). To me this sounds a lot like a Sadowsky preamp. The MXR M81 is smaller than the Sadowsky SBP-1 but has sweepable mids and more headroom. It's more feature rich than the smaller Sadowsky SBP-2 having the advantage of a DI with phantom power and can run on a 9V battery or A/C adapter. Finally the MXR M81 is cheaper than both Sadowsky preamps. Great preamp!
Review: Perfect for when no amp is required. 5 stars - Fantastic perfect for my bass

## 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 |
| Best Sellers Rank | #9,361 in Musical Instruments ( See Top 100 in Musical Instruments ) #19 in Guitar Signal Path & Pedal Tuners #46 in Bass Guitar Effects #2,376 in Guitar & Bass Accessories |
| Brand | MXR |
| Compatible Devices | Double Bass |
| Connector Type | 6.35mm Jack |
| Customer Reviews | 4.7 4.7 out of 5 stars (191) |
| 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 | 0.5 Pounds |
| Manufacturer | Jim Dunlop |
| 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 |
| UPC | 710137072770 |
| 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

![Bass Preamp - Image 1](https://m.media-amazon.com/images/I/71nSQxvoIXS.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Fantastic Bass Preamp Pedal
*by J***T on June 11, 2020*

I tried a lot of preamps. The MXR M81 has all these features that made me buy and keep it. - Sounds great and doesn't change the character of my bass of amp. - Can run on battery, phantom power or standard A/C adapter. - DI on board with pre/post switch and ground lift. - Plenty of headroom. I can run direct into a power amp if needed. - Small form factor (like a Phase 90). To me this sounds a lot like a Sadowsky preamp. The MXR M81 is smaller than the Sadowsky SBP-1 but has sweepable mids and more headroom. It's more feature rich than the smaller Sadowsky SBP-2 having the advantage of a DI with phantom power and can run on a 9V battery or A/C adapter. Finally the MXR M81 is cheaper than both Sadowsky preamps. Great preamp!

### ⭐⭐⭐⭐⭐ Perfect for when no amp is required. 5 stars
*by A***R on February 4, 2026*

Fantastic perfect for my bass

### ⭐⭐⭐⭐⭐ Does The Job
*by Y***J on January 18, 2025*

Great preamp with nice DI out signal. I swapped out my Mighty Mite soapbar pickups for EMG's and though they have active circuitry they have a passive feel. So the preamp boosts the signal well and the onboard eq allows for decent tone shaping. Takes some "playing around" to get the sound you want. Would recommend.

## 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)

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*Product available on Desertcart United Arab Emirates*
*Store origin: AE*
*Last updated: 2026-04-23*