800-ZZOUNDS (800-996-8637)
When you call, mention priority code 15G1-434C
close [x]
  • Mon, Tue, Wed, Thur, Fri 8AM - 10PM (EST)
  • Sat 9AM - 6PM (EST)
  • Sun 1PM - 7PM (EST)

Rating and Reviews: MXR M103 Blue Box

This pedal fuzzes up your tone and duplicates each note 2 octaves lower. You get to control the ouput of the mix and effect.

User Ratings
Overall
Sound
Features
Ease of Use
Quality
Value
Manufacturer Support
The Wow Factor
| | |

"Nice, with a small mod..." submitted October 29, 2012

By Christopher K in Decatur, GA
Overall
Sound
Features
Ease of Use
Quality
Value
Manufacturer Support
The Wow Factor
Musical Background: Played +30 years, part-time pro
Music Style: Rock, funk, blues, experimental...whatever.
Back to Product Information
VERIFIED BUYER
zZounds has verified that this customer bought this product from us.
Overall: I liked the sound, but the volume drop from engaging the pedal is ridiculous. There's a simple way around this: clip the C11 capacitor off. Voila, gain is back! The tone is more aggressive (the cap is a low-pass filter, I believe) but this is not necessarily a bad thing - and if you're handy with a soldering iron you can always change the value to something less extreme, and/or put it on a switch so you can go back if you want to. It's a waaacky sound, once you get it dialed in. Pretty simple - one knob is level, the other is amount of fuzz vs. low-octave mixed in. All the way CW it's a nasty fuzz pedal, all the way CCW it's fat, fuzzy, synth-bass. Mix to taste. There are probably better (or at least different) pedals like this out there, but at this price point I'm betting this is the one.
2 of 2 people (100%) found this review helpful. Did you?
Thanks for your opinion!
close [x]

Thank you. Your vote has been counted. Could you briefly tell us why the review was or was not helpful?

MXR M103 Blue Box Customer Review submitted January 29, 2009

Overall
Sound
Ease of Use
Music Style: psychodelic rock/funk/electonic
Back to Product Information
Sound: The sound is really juicy, but it takes a lot of effort to get the sound you want, and it is not always possible too. Ease of Use: I know that it was created to be a little bit unpredictable, but id use it more often if i could get from this box what i want every time.
3 of 4 people (75%) found this review helpful. Did you?
Thanks for your opinion!
close [x]

Thank you. Your vote has been counted. Could you briefly tell us why the review was or was not helpful?

"Crazy-Cool Effects Pedal!" submitted September 16, 2006

By a customer from hotmail.com
Overall
Sound
Features
Ease of Use
Quality
Value
Manufacturer Support
The Wow Factor
Musical Background: Active Musician & Recording Engineer
Music Style: Classical, Bluegrass, Punk, Weird Stuff
Back to Product Information
SPOTLIGHT REVIEW
VERIFIED BUYER
zZounds has verified that this customer bought this product from us.
Overall: The MXR M-103 Blue Box is a combination octaver/distortion pedal, with a bit of pitch modulation thrown in for extra insanity. When played without other effects, it sounds like a rabid Atari 2600 on a rampage! Combined with a slow and deep chorus and a bit more rock distortion, you can get cool sounds similar to to '70s rock or even a bit like '60s psychedelic. This is not a polyphonic pedal, so chording with this box doesn't work so well. Use single notes for best results; and use chorus, delay, or harmonizer pedals later in the effects chain to flesh out your sound. I've also tried MXR and DigiTech phasers with the Blue Box, with fun and interesting results! Keep the Blend knob around the 10 or 11 o'clock position for less randomness and a bit more control over your sound. The Blue Box is built tough, and is a lot of fun to use! This pedal is a great value; and provides unique sounds for rock, metal, industrial, punk, alternative, and experimental music!
9 of 9 people (100%) found this review helpful. Did you?
Thanks for your opinion!
close [x]

Thank you. Your vote has been counted. Could you briefly tell us why the review was or was not helpful?

"DO NOT BUY" submitted April 30, 2013

By brian b
Overall
Sound
Features
Ease of Use
Quality
Value
Manufacturer Support
The Wow Factor
Music Style: rock, metal, blues, and jazz
Back to Product Information
VERIFIED BUYER
zZounds has verified that this customer bought this product from us.
Overall: I bought this thinking it would be a cool addition to my collection but I was dead wrong the volume drop is awful the tone is terrible all settings were terrible. If I could I would give 0 stars
Did you find this review helpful?
Thanks for your opinion!
close [x]

Thank you. Your vote has been counted. Could you briefly tell us why the review was or was not helpful?

"A Must for Your Pedalboard!" submitted September 16, 2006

By a customer from yahoo.com
Overall
Sound
Features
Ease of Use
Quality
Value
Manufacturer Support
The Wow Factor
Back to Product Information
Overall: This is the sweetest pedal ever! There's none like it!
Did you find this review helpful?
Thanks for your opinion!
close [x]

Thank you. Your vote has been counted. Could you briefly tell us why the review was or was not helpful?

BizRate Customer Certified (GOLD) Site
Questions? Our gear experts can help!
800-zZounds (800-996-8637)
When you call, mention priority code 15G1-434C. Llame Gratis en Español: 800-460-7976
Lunes-Viernes de 9AM a 5PM EST
Customize Search Results for Your Location
Shop with those who respect your privacy — we do. Copyright © 1996-2014, zZounds Music, LLC. Terms of use apply.
close [x]What is this?
A temporary customer reference number is assigned to each customer only while they are shopping on zZounds.com. If you call our customer service department for assistance, this number makes it easier for us to answer any questions you have about products, services or purchases.
 
close [x]What is this?
A temporary customer reference number is assigned to each customer only while they are shopping on zZounds.com. If you call our customer service department for assistance, this number makes it easier for us to answer any questions you have about products, services or purchases.
close [x]

1. zZounds offers the industry‘s most musician-friendly payment plans

zZounds offers a variety of Play as You Pay installment plans that allow you to get the gear you want today. While our competitors might offer house credit cards that require you to fill out an application and pass a credit check, our payment plans are easy to get, simple to use, and, best of all, accrue zero interest. Unlike those house credit cards that can leave you vulnerable to exorbitant interest charges once the promotional period ends, we never have and never will charge interest when you take advantage of one of the zZounds Play as You Pay plans.

zZounds payment plans details »

2. zZounds guarantees the lowest price

Seen it for less somewhere else? Get it for less at zZounds. Simply click the “Seen it for less?” link on any product page and as long as we‘re not losing money, we‘ll beat any legitimate competitor‘s lowest price, usually within two hours. Want our best price even faster? Call us at 800-zZounds (800-996-8637), and we‘ll provide you with a lower price on the phone. Also, if you purchase from us and later find the product for less elsewhere, call or email us within 45 days, and we‘ll refund you the difference.

zZounds.com price match details »

3. zZounds gets you your gear fast

At zZounds, you‘ll get your gear fast and, usually, with free delivery. Because we have warehouses in New Jersey, Nevada and Mississippi, nearly 95 percent of Americans reside within our two-day shipping zones. Combine this with the fact that many of our best-selling products qualify for free two-day delivery and you get expedited shipping without the additional cost.

zZounds.com shipping details »

4. zZounds makes returns super easy

Buy it, try it, like it, or return it to us for a full refund. It‘s just that simple. If you‘re not in love with what you bought, return it to zZounds within 45 days, and we‘ll promptly arrange for an exchange or a refund. No hassles. No hidden charges. And if a product‘s defective or damaged, call us at 800-zZounds (800-996-8637), and we‘ll email you a prepaid shipping label so you can easily return it to us at zero cost to you.

zZounds.com return details »

5. zZounds delivers top-rated customer service

zZounds has received multiple Bizrate® Circle of Excellence Platinum awards, placing us in the top 0.7 percent of Bizrate‘s network of 5,200 retailers. Our success in meeting the needs of our customers -- since 1996, we‘ve satisfied over 1,000,000 people -- is due in large part to the fact that zZounds only hires experienced musicians to answer your calls and emails, and they are never paid a commission.

zZounds.com customer service »
close [x]
Available on
orders $249+
learn more

Need it now but short of cash? All we need is the first payment up front and the rest in easy monthly payments!

Fast approval.
We approve everyone, with very few exceptions, as long as we can verify your identity.
No interest. Ever.
It's just as if you paid the whole amount up front!
No paperwork. Nothing to track.
No application to mail or fax, no bills to pay. We automatically charge the payments to your credit card.

We'll wait on your money so you don't have to wait for your gear!

When you checkout, just click the Play as you Pay checkbox to indicate which installment plan you wish to use.

close [x]
on most orders $29+

Just $1.99 on
smaller orders

Really heavy stuff might cost you a
little more

learn more

Why fight traffic and pushy salesmen when we'll bring your gear straight to your home, free of charge?

zZounds free shipping is really free!
No hidden charges or hassles on returns.
Fast, reliable delivery
We have warehouses on both coasts, so most shipments arrive in 3 days or less.
We don't collect sales tax. Bonus!
Only NJ residents pay tax during checkout.
close [x]

A guarantee so solid, you never have to worry about price when shopping at zZounds

We'll beat any price
Simply click the Seen it for less? link next to the gear you want or call us at 800-zZounds (800-996-8637)
Got a coupon from another site?
Use it with us - we'll beat those prices, too!
Find a better price after buying from us?
No problem. We'll refund you the difference for 45 days, so you'll never regret buying from zZounds.

You'll still get the trustworthy service you've come to expect from zZounds, without paying more for your gear!