Get Your Labor Day Savings Event CouponSave Now »

Electro-Harmonix The Mole Bass Booster Effects Pedal

Item #: 
  • Write a Review

The Electro-Harmonix Mole Bass Booster Pedal helps bassists and guitarists unearth a positively subterranean sound. Based on the classic design, this updated Electro-Harmonix pedal adds the same rich,... Read More

Your Price:
Add to Wish List
GC Gear Card
Special Financing Offers Learn More
  Pick Up In Store
Ship to Store Englewood, CO (3.11  mi) See more stores

  • Pro Coverage Eligible
    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.
  • Free Shipping
    Free Shipping This item qualifies for free ground shipping anywhere within the contiguous United States.
  • International Shipping
    International Shipping This item can be shipped globally. We offer international shipping to over 100 countries worldwide.

The Electro-Harmonix Mole Bass Booster Pedal helps bassists and guitarists unearth a positively subterranean sound. Based on the classic design, this updated Electro-Harmonix pedal adds the same rich, low-end bottom while adding a 20dB boost to your signal. Whether you step on the Mole to get deep, ground-shaking drive or dial back the knob to add some texture to your existing tone, the Electro-Harmonix Mole Bass Booster digs wherever you tell it to.

  • True Bypass
  • Up to 20dB of LOW frequency gain to any amp
  • Center frequency of 400 Hz to 200 Hz at maximum volume
  • Tough and compact die-cast chassis
  • 9-volt battery included
One year warranty on pedals. 90 day warranty on all other products.

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 7 reviews)

Ratings Distribution

  • 5 Stars



  • 4 Stars



  • 3 Stars



  • 2 Stars



  • 1 Stars



Reviewed by 7 customers

Sort by

Displaying reviews 1-7

Back to top


It's a Bass boost pedal & that's what it does"


from Charlotte NC

Ok, I bought this pedal cause I was looking to boost my low end on some parts of our songs but also I wanted to keep my highs intact, so I tried many different pedals without luck, so ordered it arrived 3 days later and it was a dissapoiment but that's not the pedal fault. It really does what the tin says boost your low end and NOTHING more for what I can see and hear around town this pedal was designed for Bass but it works better with guitar. End up getting myself a BBE-Sonic Stomp instead and OOHH man i'm impressed with that bad boy my search is over. talk about irony here, The sonic stomp is a guitar pedal that works way better on bass than on guitar Lol! Cheers!!!

Comment on this review

(3 of 3 customers found this review helpful)


It is a BASS BOOSTER!!!!

By Tony V.

from Loxahatchee, FL

This thing is brutal. If you don't dial it back some, the low end will bury your band. I can't imagine anyone wanting this to be an always on pedal. While it boosts your low end tremendously, it also rolls off your mids and high. I wish it didn't because I would use it more often. But all in all, it is a fun toy and that is what effects are..... toys. For $39 you can't not have it on your board. It is great for slower passages where the guitards may be holding whole notes and you have a walking bass line and such. Like I said, it does what it is suppose to, and does it almost to well.

Comment on this review

(1 of 2 customers found this review helpful)


Need more Bass? Then you NEED this pedal!

By Jeffrey

from Blairsville, Ga

I started looking at this pedal because of it's low price, and I did'nt have any money to buy stuff for my bass. ight when it came in the mail, I plugged it into my small 13w practice amp. Now, I had the volume on my little amp so low that I could just barely hear myself normally, but when I stomped the pedal, it was almost as if I'd turned the amp halfway up! Then I set all the settings I could (on the amp & the bass knobs) so I'd have as much bass as possible. If I had a better amp, my house probably would have shaken! This pedal is lightweight, small (it easily fits into the palm of my hand), affordable, and it adds an amazing boost that I don't think you're going to get anywhere else. There have been many times when a sound guy has turned my bass down low, and it really ticks me of when I do awesome bass riffs and I can't hear them. With The Mole, my bass cuts through the guitars' noise, although it doesn't overshadow them. It makes the band sound good as a whole. If you have the money, and you want more bass, you absolutely need this pedal.

Comment on this review

(4 of 4 customers found this review helpful)


Interesting but...

By Mr McHuge

from PA

I was actually hoping for an overall boost. Unfortunately since GC doesn't have this in stock I had to sort of wing it when ordering it. You really have to watch your settings with it. For example, at a low output, its generally a "muted" sound. Almost "baffled". You can get a crazy overdrive out of it. However you will REALLY be pushing your rig. TO be clear, for future buyers, this does NOT cleanly boost your signal. Which is kind of what I was looking for. Instead, think of it more of a powered tone/almost overdrive foot pedal.

Comment on this review

(17 of 17 customers found this review helpful)


Powerful Low End

By Steven Castineiras

from Staten Island, New York

This pedal is designed to cut high end and boost lows and it does its job well. Let's go through how it can be applied musically. For one, you can use it for just the tone it produces. Keep it on all the time and you get a nice smooth, warm tone reminicent of John Paul Jone's in "Dazed and Confused". I often use it when I have to switch my tone between songs. I can set a trebly slap tone for "Naked in the Rain" and go straight into "Walking on the Moon" after turning this pedal on. Another reason to have this on your pedalboard would be in a live situation. Sometimes you can't hear yourself when playing live. It happens a lot, especially when playing in an unfamiliar venue. Sometimes you just need to crank the volume. But more often than not you need to tweak your tone. For this reason I have a volume booster, a treble booster, a mid booster and the Mole for foundation on my board at all times. So whenever I can't hear myself I know I can fix that easily with my feet. One last use out of the Mole would be as a distortion pedal "overloader". I put it before a Boss DS-1 (Occtone mod "The 96") at its maximum level and it gave the distortion a lot more gain and bassist friendly low-end. Overall I like this pedal and have found a few good uses for it. Two bad things about it though, The pedal is obnoxiously loud at high levels and mutes your signal at its lowest level. Other complaints from fellow users include the cutting of the high end, but that's what it's designed to do... I usually keep it a hair behind noon for practical uses. Opposite of this pedal is the EHX Screaming Bird which cuts lows and boosts highs.

Comment on this review

(16 of 16 customers found this review helpful)


should be called "Earthquake"

By Ray Hayes

from Elgin, IL

I'm an older player and can't be hauling around huge bass rigs. I still love the old sound of the Bassmans and Acoustics and Kustoms of my youth. I play thru an old Fender Sidekick 65 which I have running thru a 2X10 bottom and back to the 15 inch Eminence Legend in the Fender. I do this so I can use either one or both. By using The Mole I have opened up the bottom range of that rig like you would not believe. This setup has gotten me more "headturns" and good comments about my sound. I'm very pleased with the product and have accomplished my goal of having a versitle amp set-up.

Comment on this review

(8 of 27 customers found this review helpful)


Sweet but Not

By ????????

from Chattanooga

So we bought this thinking we could boost the bass and keep good tone. That is a no no. We use it only to do fake bass drop outs on our bass rig in small venues. If your looking for something to do nothing but low end bass hits and loose lots of tone this is a sweet deal but don't buy it wanting some great effect.

Comment on this review

Displaying reviews 1-7

Back to top

You are changing the Ship-To country.

Our product catalog varies by country due to manufacturer restrictions. If you change the Ship-To country, some or all of the items in your cart may not ship to the new destination.