MXR, Bass Octave, Compressor, Chorus, Octave, preamp, Envelope filter Deluxe, Phase 90, 95 Jim Dunlop Volume Pedal XL UK, EU, On offer :: Basses and Guitars Bass Direct: Dunlop effects pedal for bass, guitar, for sale, Birmingham, London, Manchester, USA


MXR M287 Sub Octave Bass Fuzz £199

MXR Bass Chorus Deluxe £199

MXR Bass Compressor £171

MXR Bass Envelope Filter £170

MXR Bass Octave Deluxe £169

MXR Poly Blue Octave Pedal £215

MXR Vintage Octave Bass Mini £159

MXR Bass DI + £159


Bass Chorus Deluxe

The MXR Bass Chorus Deluxe is powered by pure analog bucket-brigade technology, serving up shimmering, liquid chorus and swooshing, metallic flanger effects while preserving the punch and fundamental of your low end.

The Bass Chorus Deluxe features top-mounted Flanger and X-Over buttons with LED status indicators. In X-Over Mode, modulation in low frequencies is decreased at 100Hz—perfect for playing upper register chords, melodies and fills while keeping the low end in tune. With Bass and Treble controls you can cut or boost lows and highs and shape the tonal character of the effect. For a wide stereo sound, select the TRS (tip-ring-sleeve) Stereo Hardwire Bypass Mode via an internal switch. In this mode, you can use a TRS to TS (tip-sleeve) Y-splitter cable to send the effect signal to two different amplifiers, allowing the modulation to move from left to right.

The Bass Chorus Deluxe joins the ranks of award-winning pedals in the MXR Bass Innovations line, each designed by bass players for bass players.

"The MXR Bass Chorus keeps it tight in the low end while providing either a great chorus or flange to your bass lines." - Juan Alderete, Racer X / The Mars Volta

"I'm a long-time aficionado of chorus effects, but it's sometimes tricky getting the sound to jive just right the low-end of bass guitar. The new MXR Bass Chorus is a great solution. It not only retains the lows well, but also gives a particularly rich and unique chorus effect. Great on synth bass too. Highly recommended."- Justin Meldal-Johnsen

MXR M306 Poly Blue Octave Pedal

The MXR Poly Blue Octave brings modern and classic pitch-shifting styles together with fuzz and modulation to create the ultimate octave pedal for tonecrafters and sonic seekers.

Levelled up.

The Poly Blue Octave features four separate octave divisions—one octave down, two octaves down, one octave up, and two octaves up—and you get to control the level of each in the mix. Each is polyphonic by default, which means they sound just as amazing with chords as they do with single-note passages. Your dry signal gets its own level control, as well, so you can dial in the perfect blend of pitch-shifted tones.

From contemporary clarity to raw vintage grit.

The Mono switch takes you back to the gritty, monophonic tones of analog-style pitch shifters. In this mode, the sub-octave signals have the warm vibes and raw personality of a pedal such as the MXR Vintage Bass Octave, while the higher octave signals resemble the Octavio Fuzz with its fuzz intensity dialled all the way back.

Call up the thunder and lightning.

The Poly Blue Octave comes equipped with an unruly fuzz that’s inspired by the classic MXR Blue Box™ Fuzz. Applied to all five signals, the fuzz volume can be adjusted using the Dry knob after pressing and holding the Fuzz button. When used with the sub-octave signals, the fuzz sounds thick and subterranean. Over the higher-pitched signals, the fuzz is searing and synth-like. Run them all at the same time for a choir of thunder and lightning.

Phase yourself.

For infusing your octave tones with an alluring sense of motion, from thick and syrupy to frenzied and frantic, the Poly Blue Octave features a dual-mode modulation effect. In polyphonic mode, the effect provides an uncanny simulation of the famous Leslie effect, and while In monophonic mode, it provides classic swirls and swooshes inspired by the Phase 90. Like the fuzz effect, the modulation applies to all five signals when engaged. The Mod knob adjusts the rate of the effect—when you want it off, just roll the Mod knob back fully counterclockwise.

Step up and take control.

Through the EXP jack, the Poly Blue Octave allows you to control various settings with an expression pedal such as the Volume (X)™8 Pedal or an off-board switch such as the MXR Tap Tempo Switch to sweep between two different knob and switch configurations or toggle the fuzz and mono modes on and off.

A full palette of tones and textures in a single pedal.

The MXR Poly Blue Octave delivers high-performance pitch shifting, fuzz, and modulation in a ruggedly reliable housing with true bypass switching. Put this into your signal chain, and open up new sonic frontiers.

If you're looking for a vintage-style Bass octave pedal, constructed with modern circuitry for superior tracking, cleaner headroom, and sonic versatility, then look no further. The MXR M280 Vintage Bass Octave Mini Pedal ticks all of the above boxes with ease - and it even comes in a pedalboard friendly size!

MXR M280 Vintage Bass Octave Mini Pedal Highlights

  1. Classic MXR Bass Octave circuit house in a space-saving MXR Mini chassis

  2. Produces up to two octaves of sub-harmonics below what you play - each with independent controls labeled Oct 1 and Oct 2

  3. Dry volume control, for dialling in your clean signal

  4. Mid Switch for boosting your clean midrange by up to +6dB - can be altered to +13dB via internal trimpot

  5. Features "Constant Headroom Technology"

  6. Controls: Oct 1, Dry, Oct 2, Mid boost, and On/Off Activation Footswitch

  7. True Bypass circuitry

Miniature-sized Vintage Bass Octaver

Able to produce tones that range from a low-key growl, through to window-rattling dub, this powerful little pedal is a must-have for your pedalboard.

With a voice that's both rich and throaty, the MXR M280 Vintage Bass Octave Mini Pedal generates two sub-octave tones underneath what you play.

Tonal Versatility

These two signals are assigned as Oct 1 and Oct 2, each with independent Volume controls, and there's also a Dry control, for your natural tone.

Once you've set these controls just right, if you feel like you need some extra clarity and definition, the pedal has a Mid switch, that boosts our Mids (800 Hz range) by up to +6dB.

However, if you want more than that and are feeling adventuruous, there's a trimpot situated under the back plate, which will allow you to boost your mids by up to +13dB!

Bass Compressor

Take your favorite studio compressor to the stage with the MXR M87 Bass Compressor. A complete array of controls—Attack, Release, Ratio, Input, and Output—makes it easy to fine-tune your sound, from subtle peak limiting to hard squashed compression effects. Its CHT™ Constant Headroom Technology gives you plenty of headroom and clear performance. This totally transparent compressor allows your full dynamic range to shine through until your signal reaches the compression threshold, which is indicated by the ten, highly visible gain-reduction status LEDs. It’s all packed into a durable, lightweight aluminum-housing pedal that’s the size of a Phase 90.

“Finally, a five-knob compressor in a pedal. I’m a compression aficionado, and this box kills! All parameters are tweakable.” Billy Sheehan

"Historically, compressor pedals give me the heebie jeebies. So when this pretty pedal showed up sounding all natural and punchy with a cool gain-reduction meter, quelle surprise! Nice job MXR." Justin Meldal-Johnsen

Bass D.I.+

Finally, all the essentials in one tough little box. You need a serious D.I. for playing live and laying down killer tracks. You've got to have a preamp and finely tuned EQ to add punch to your tones. And you definitely can't do without some rich, custom distortion. This one-of-a-kind pedal gives you the whole deal in a bomb-proof enclosure that will survive even the most out of control gigs-and players. Built with the highest quality components, the M-80 can give you eve everything from warmth and transparency to a volcanic roar, without making you scroll through menu screens or an indecipherable manual. Engage the color switch for some sweet preset EQ, then tweak your tone with three band control. Dial in your ideal distortion with the gain knob and blend just the right amount into your clean signal, then kick it on and off at will. The adjustable noise gate pours on the sustain and cuts out hum and hiss. With XLR and parallel 1/4" outputs and a phantom power switch, you'll never have a problem delivering your choice new tones. Power: Single 9 volt battery or Dunlop ECB003 AC Adapter

Bass Envelope Filter

The Bass Envelope Filter delivers classic, analog, envelope filter sounds in an easy-to-use and compact pedal designed specifically for bass. Separate Dry and Effect controls let you dial in the perfect mix of effected and direct signals, so you can bring the funk without losing the low end. Its wide range of filter tones can be shaped with the Decay and Q controls, and a simple twist of the Sensitivity knob can tailor the pedal for your attack—as well as adjust for passive or active basses. The Bass Envelope Filter's power supply circuitry is designed to withstand over-voltage or polarity mishaps, and its true-bypass switching preserves your tone in bypass mode. It's all packaged in a durable, lightweight, Phase 90-size aluminium housing for the ultimate in portability and pedalboard space-saving dimensions.

Bass Fuzz Deluxe

Next up in the award-winning MXR Bass Innovations line is the Bass Fuzz Deluxe. We dug up a rare vintage fuzz and modified it for the modern bassist. The resulting stompbox delivers a cutting and bold fuzz tone without degrading the punch and clarity of your original signal.

With separate Dry and Wet level controls, the Bass Fuzz Deluxe sounds like you’re running two different amps. Blend to taste, from subtle hairiness to full on raging fuzz, with Fuzz and Tone controls affecting only the Wet signal. The Bass Fuzz Deluxe features true hardwire bypass.

Bass Octave Deluxe

The M288 Bass Octave Deluxe is a dual-voice octave pedal that offers analog tone, true bypass, and a variety of tonal options. MXR's 18 volt Constant Headroom Technology™ provides high headroom and superior tracking. Use the Dry knob to mix in your direct signal, and hit the Mid+ switch to add up to +14dB of internally adjustable mid frequencies (400Hz or 850Hz). Finally, mix in two separately controlled octave voices—Growl (for throaty tone) and Girth (for deep tone).

Bass Overdrive

The MXR Bass Overdrive is an original design that delivers warm, tube-like overdrive. Along with standard Volume, Tone and Drive controls, this pedal features a Clean control so you can blend a pre-set EQ clean signal with the overdrive signal, resulting in sweet burly bass overdrive.

""Punch your bass into the mix with the help of the MXR Bass Overdrive." - Juan Alderete, Racer X / The Mars Volta

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 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.

Blow Torch® Distortion

By focusing the overdrive in the midrange frequencies, the Bass Blow Torch lets you retain low end thunder and high-end sizzle while distorted mids blaze a path through even the densest mix. An active 3-band EQ with 3-position mid shift lets you zero in on an incendiary tone, while the Blend knob lets you balance your distortion with direct signal to taste. And the Bass Blow Torch burns as clean as it does hot, with 18 volt performance for increased dynamic headroom, clarity and low noise even at lethal volume. True hardwire bypass circuitry means that when you switch the distortion out, it's really gone.

Phase 90

This device has found its way into many of Eddie Van Halen's recordings, adding a shimmery velocity to lead passages or a more dramatic swoosh to muted strumming. Not just for guitars; it works well with bass, keyboards and even vocals. Vary the speed from a subtle, long cycle to a fast, watery warble...and myriad vintage vibrations in between.

MXR Phase 95 Guitar Effects Pedal

The MXR Phase 95 Guitar Effects Pedal is a compact pedal that combines the legendary Phase 45 and Phase 90 circuits for the optimum Phase effect. This shrunken down mini version is equipped with a 45/90 switch that toggles between the two original phase units, while the script switch removes undesirable feedback for a subdued sound with more headroom. The familiar Speed control sets the rate of the effect and lets you achieve the perfect sound. With its scale down compact size, the Phase 95 eliminates room on your pedalboard and provides you with the ultimate Phase effect. Includes 9-volt adapter.

Dunlop DVP 3

The Dunlop Volume X Guitar Volume Pedal is more than a simple fader for your feet! You can tailor the Volume (X) to your specifications precisely by adjusting the tension, and the minimum volume boundary of the pedal travel. You can even reverse the pedal if you want to, so that the heel down position represents full volume.

Traditionally sturdy - the Volume X is built like any Jim Dunlop pedal - built to last! Take control of your volume, and amp overdrive with this simple-yet-comprehensive guitar volume pedal from Dunlop.

Key features

  1. 1Fully adjustable rocker tension

  2. 2Internal controls set the minimum level of effect parameter, and reverse the function of the heel-down & toe-down positions

  3. 3Aluminum chassis, aggressive non-slip tread, patent-pending Band Drive

Here's what Dunlop say about the Jim Dunlop Volume (X) DVP3 Pedal

Create incredibly smooth volume swells or control your effect pedal parameters with the Dunlop DVP3 Volume X. Small and pedalboard-friendly, the DVP3 is solidly-built and ready for the road. It's housed in an aluminum chassis with aggressive non-slip tread and comes equipped with our patent-pending Band Drive for a smooth range of motion without the fear of breakage or change in feel or range. For maximum comfort and precision, the DVP3's rocker tension is fully adjustable.

When using the DVP3 as an expression pedal, you can use the internal pot to set the minimum level of the parameter you're controlling with the rocker. If you want to reverse the function of the heel-down and toe-down positions, the DVP3 has an internal switch that allows you to do so.

Along with Volume, FX and Output jacks, the DVP3 also features a convenient Tuner output for silent tuning onstage.

Dunlop DVP 3

The Volume (X) Mini Pedal controls volume and FX parameters with the same reliable durability as the DVP3, but it takes up half as much space on your pedalboard. Features a switchable AUX jack that functions as a tuner or expression out.


  1. 1Controls volume levels and FX parameters

  2. 2Half the size of the DVP3

  3. 3Low Friction Band-Drive for smooth, durable performance

  4. 4Lightweight and pedalboard-friendly

  5. 5AUX output for switchable tuner/expression functionality

The Sub Octave Bass Fuzz dishes out thunderous low end with earth-shaking fuzz. To create this sonic behemoth, MXR’s engineers combined the Growl section of the Bass Octave Deluxe with a long-forgotten fuzz circuit. With three separate output level controls for the fuzz, sub octave, and dry signals, you can create your own recipe of subterranean tones without sacrificing any of your instrument’s natural sound. Further versatility comes in the form of the fuzz section’s tone controls and two switchable voices—warm and compressed or bright and aggressive—along with the Mid Level control, which allows you to give your dry signal some more punch in the midrange.
  1. Combines two switchable fuzz flavors with a growling sub octave signal

  2. Separate Dry volume control ensures clean low end retention

  3. Bass and Treble controls allow you to fine-tune your fuzz signal

  4. Mid Level control allows you to boost your clean midrange to cut through the mix

MXR Bass Preamp Review in Premier Guitar

David Abdo

August 31, 2014

Applying the descriptor “Swiss Army knife” to a piece of gear is probably overused in reviews, but if it aptly describes an instrument, amplifier, or effect pedal that offers excellent versatility, it’s a fitting one. Many effect companies offer different takes on a portable preamp—which can provide a multitude of benefits—and one of the latest units on the market comes from the design team at MXR. Their M81 Bass Preamp boasts both simplicity and flexibility, all wrapped up in a simple green box.

Just the Essentials, Please
The primary feature of the MXR M81 is its 3-band EQ with sweepable midrange. The bass and treble controls are voiced quite nicely, providing fullness that doesn’t muddy the tone and highs that aren’t harsh. Unless you obsess over midrange at Billy Sheehan-like levels, the mid and mid-frequency controls are very user-friendly, and allow a bassist to boost or mellow out the bumps, honks, and clacks of this sonic spectrum.

A significant boost with the input dial and a slight bump with the bass control began an instant tone resurrection.

Secondary features include the input and output controls. They make boosting a passive signal and achieving unity gain a breeze. Tucked cozily into the 6-knob setup are also two switches—one for ground lift and the other a pre/post for a studio-quality DI. The pedal is powered through either a 9V battery or adaptor, and it uses MXR’s Constant Headroom Technology.

Problem Solved
No matter what bass I plugged into the MXR M81, the pedal improved the overall sound of the instrument. I started by placing the pedal between a ’64 Fender Jazz and an Epifani AL112 combo set flat to hear if the preamp could breathe some life into the J’s aging pickups.


A super-functional and flexible preamp that brings out the best your bass has to offer.

Some players may find the ground lift and pre/post switches a bit difficult to reach.

A significant boost with the input dial and a slight bump with the bass control began an instant tone resurrection. Tweaking the mids brought some aggressiveness to the bridge pickup thanks to a +3 dB boost in the 500 Hz range. A little cut in the treble darkened the tone and helped create punchy and burpy bass lines, perfect for 16th-note passages.

Most surprising was how the M81 enhanced the neck pickup. It’s not that often that Jazz-bass-style players solo this side of the instrument, but with a little boost of the bass, mid (at 480 Hz), and treble, the ’64 took on a tonal character similar to its older brother P.

Despite already having its own preamp onboard, a Brubaker Brute MJX-5 benefitted from what the M81 preamp could provide. A twist of treble made the instrument’s 3-month-old strings sound fairly fresh. When I soloed the Brubaker’s Music Man-style bridge pickup and boosted the bass and mid, the M81 helped deliver a StingRay-esque voice that would be ideal for Chic bass lines and Louis Johnson disciples.

Bassists who double will probably also be impressed with the M81. I was able to dial out the harsh mids that plague both a Ned Steinberger NXT electric upright and a German upright equipped with a Fishman Full Circle pickup. It was easy to glean sounds perfect for salsa bands or jazz ensembles, from deep dub-like timbres to tones that brought out the wood of the bass.

The Verdict

Whether you’re looking to give your vintage bass a modern vibe without having to route the body, or you seek a solo-boost or tonal-tweaking device to cut through the mix, or you need a solid DI that will work well for both the stage and studio, you’re pretty much covered with the MXR M81. All of these options are at your fingertips at a price point lower than many quality onboard bass preamps, and this makes the M81 one of the better boxes in its class. I’d definitely call it a Swiss … well, you know what I mean.


Tel: 01926 886433