Dunlop - MXR M81 Bass Preamp - Gutar Footswitch

Item # EFFM81
| Mfg # M81
| UPC # 710137072770
Our Price: $169.99
Retail: $242.85 | You Save: 30%
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The MXR Bass Preamp combines a pristine bass preamp with astudio-quality Direct Out in a Phase 90-sized box, providing clear tonewithout hogging precious pedalboard space. Use it to add a new voice toan old passive bass, sweeten up any amp, or put some special sauce on aparticular song. Dial it in just the way you want it and send itstraight to the house—pre or post-EQ—with the built-in Direct Out. 

The Bass Preamp features separate INPUT and OUTPUT level controls and a3-band EQ section with sweepable midrange—from 250hz to 1khz—forextensive tonal flexibility. It’s all delivered super clean with highheadroom thanks to our own Constant Headroom Technology™, and you canuse the PRE/POST EQ switch to set whether or not your Direct Out signalis affected by the Bass Preamp’s EQ section. And of course, the BassPreamp features a GROUND LIFT switch in case you encounter ground loophum. 

The Bass Preamp is factory preset to operate in ¼” out buffered bypassand 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” outbuffered bypass for true ¼” out bypass mode.

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Product Warranty Information

Tel: (707) 745-2722; Email:; Dunlop Website | Warranty Info | Product Registration; 1 year Parts and Labor


All instruments in our catalogs and on our shopping site carry the manufacturers' warranties against defects in parts and workmanship. Should a defect occur within the manufacturer's warranty period, contact us immediately.

We will be glad to help facilitate the repair or replacement as specified by the manufacturer. The manufacturer will determine whether the defect is covered under their warranty; we do not make that determination.

Please note: U.S.-based manufacturers WILL NOT honor warranties for items sold and shipped outside the U.S. Also, if a school, school district, or board of education purchases an instrument and resells it to an individual, the manufacturer considers the warranty to be void. Warranties are extended only to the original purchaser!

All warranties, stated or implied are held with the product manufacturer and they vary from item to item. Consult the documentation that came with your product for details in addition to the information below.
Dunlop was founded as a small, family-owned company in 1965, and has grown to be a leading manufacturer of electronic effects, picks, capos, slides, strings and other accessories. It's the home of the the Cry Baby wah and Tortex picks, legendary products.