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MXR M288 Bass Octave Deluxe Effects Pedal Blue Sparkle

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The MXR M288 Bass Octave Deluxe is a dual-voice octave pedal using MXR's 18-volt Constant Headroom Technology (CHT) to provide studio-performance headroom and superior tracking. Use the Dry knob to mi... Read More

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    Pro Coverage Eligible Pro Coverage will repair or replace your gear quickly and get you back playing, gigging and recording as fast as possible-even accidental damage from drops or spills is covered.
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    Easy Returns If you're not happy with your purchase, we give you 30 days to return it for a full refund or exchange.

The MXR M288 Bass Octave Deluxe is a dual-voice octave pedal using MXR's 18-volt Constant Headroom Technology (CHT) to provide studio-performance headroom and superior tracking. Use the Dry knob to mix your direct bass signal with the octave effect, or hit the Mid+ switch to add up to +14dB of internally adjustable low-mid punch (400Hz) or midrange pop (850Hz). Bass players love the 2 separately processed and individually voiced octave controls-Growl (for throaty, midrange octave-below tone) and Girth (for deep and smooth octave below). The Bass Octave Deluxe boasts a durable, lightweight aluminum casting and has the same high-quality jacks and switches that make MXR pedals the road-ready standard on pedal-boards around the world.

Constant Headroom Technology
The MXR CHT circuit produces 18-volts of headroom from a single 9-volt battery or external power source. CHT utilizes voltage step-up techniques, which supplies constant 18-volt headroom regardless of source voltage. For example, CHT will produce 18-volt headroom from a used battery down to 4.5-volts and voltages up to 30-volts. CHT also protects against incorrect reverse polarity and AC voltages.

Since the early 1970s
Bass players world-wide rely on MXR pedals to overdrive, funkify, EQ, and compress their bass sound. MXR's commitment to bass players has been solidified by the development of the MXR Bass Innovations division-devoted to developing cutting-edge tools for bassists on stage and in the studio. MXR Bass Innovations products are found on the pedalboards of artists like as Robert Trujillo (Metallica), Leland Sklar (L.A. Studio Veteran), Juan Alderete (Mars Volta), Michael Rhodes (Nashville Studio Ace), and Marcus Miller.

  • Constant headroom Technology (CHT) for exceptional headroom and tracking
  • True bypass
  • Organic analog tone
  • Two independent octave voices
  • Mid+ switch adds a midrange boost at user selected frequency
  • Lightweight and durable aluminum housing
All pedals - one year parts and labor warranty.

Pro Coverage gives you added warranty protection for your new gear. Stepping in where the manufacturer's "normal wear and tear" coverage ends, our Pro Coverage program offers you upgraded coverage if your product ever fails Read More.

Pro Coverage includes
  • Accidental damage protection (new gear only)
  • Expedited repair
  • Free shipping (for returns or repairs)
  • 100% coverage for commercial use
  • Extended return period
  • Extended price protection
  • No lemon guarantee
  • Free transfer of coverage to a new owner
  • Repair costs covered for up to three years from date of purchase
  • Repair authorization-toll-free by phone or via the web
  • Customer Reviews


by PowerReviews

(based on 5 reviews)

Ratings Distribution

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Reviewed by 5 customers

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It's just great!

By Rodrigo Cesar Santos

from Sao Paulo, Brazil

Great pedal with great tone! The mid button is magical! :D

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(2 of 3 customers found this review helpful)


Not Impressed

By Paul Weaver

from Chattanooga, TN

When I purchased this pedal, I expected great tone and great tracking, but was very disappointed. The tracking works very well and sounds good on, say, playing a G on the 5th fret on the D string, but if you try to play higher notes on the 10th fret, for example, the tracking completely breaks up. You also cannot use it on lower notes since it produces a lower octave. If you play a low note, the tracking cannot produce an octave below clearly. Due to this fact, this pedal will have limited use for me.

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(10 of 12 customers found this review helpful)


Sweet Octave Pedal

By Erik Nordlund

from Portland OR

If you want one of the best, most affordable octave pedals out there, this has to be the one. For $150 there is no better deal. The pedal has amazing tracking, and you can throw in some nasty (in a good way), gritty dirt that just sounds awesome. There isn't much to say other than get to the store, try one, and buy one.

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(5 of 10 customers found this review helpful)


This is THE pedal!

By Rob Norton

from New Orleans, LA

I've had some other octave pedals and an amp with built in octave in the past and did not care for them. This pedal however, sold me on the effect. Great tracking and great sound! The "secret weapon" in my opinion is the mid button, which adds some grindy midrange dirt to the tone. I always use it with this on. MXR really got this one right!

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(7 of 10 customers found this review helpful)


Awesome Sounding Pedal

By Drew

from Flint, MI

I was a little leery to add effects pedals to my bass set-up, until I heard this. This guy gives you an awesome unique sound that will help fill in the missing pieces to your music. I use it on stage through an Aguilar system (amp head, and 2 cabinets). Absolutely no noise! Awesome pedal!

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