QuarterMaster QMX - 4

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Simple loop switching for your pedals

High-quality true bypass strip loop control for your effects pedals. Compact easy switching solution to keep your tone intact. 

TheGigRig QMX has all the same great features as the standard QuarterMaster including; 

1. Uses TheGigRig 'True Bypass' relay technology keeping your tone perfectly intact and your switching quiet. 
2. Tough aluminium enclosure and small footprint will keep your pedalboard light and compact 
3. Uses the new GigRig 'OptoKick' Optical Foot switch which we believe is the most reliable foot switch in the world.

PLUS, the QMX has a very clever ace up its sleeve. 

Each loop has a push button next to the loop return that gives you the option to turn a standard loop into a flip/flop loop. 
Instantly switch between any selected loops while adding other loops on top. Its great if there are effects on your board that you never stack like multiple delays, or drive units. 
By using the QMX returns as instrument inputs you can easily and quietly switch between your favourite guitars 

For your simple compact board, TheGigRig QuarterMaster QMX just makes life that little bit easier. 

Quartermasters - there are 5 size options

QMX2 - 9V/100mA / 16cm x 4cm x 5.8cm / 6.30in x 1.57in x 2.28in / 0.24kg / 0.5lbs

QMX4 - 9V/200mA / 28cm x 4cm x 5.8cm / 11.02in x 1.57in x 2.28in / 0.42kg / 0.9lbs

QMX6 - 9v/300mA / 41cm x 4cm x 5.8cm / 16.14in x 1.57in x 2.28in / 0.62kg / 1.4lbs

QMX8 - 9v/400mA / 54cm x 4cm x 5.8cm / 21.26in x 1.57in x 2.28in / 0.80kg / 1.8lbs

QMX10 - 9v/500mA / 68cm x 4cm x 5.8cm / 26.77in x 1.57in x 2.28in / 0.99kg / 2.2lbs


The GigRig warrants the product to be free from defects in material and workmanship for a period of 2 years from the original date of purchase. If the product fails within the warranty period, The GigRig will repair or, at our discretion, replace the product and cover the cost of return shipping to the original purchaser. This warranty covers defects in manufacturing discovered while using this product as recommended by The GigRig. This warranty does not cover loss or theft, nor does the coverage extend to damage caused by misuse, abuse, unauthorized modification, improper storage, lightning, or natural disasters. Damage caused by any of the above circumstances may result in a non-warranty repair fee. Legal: In the case of malfunction, the purchaser’s sole recourse shall be repair or replacement, as described in the preceding paragraphs. The GigRig will not be held liable to any party for damages that result from the failure of this product. Damages excluded include, but are not limited to, the following: lost profits, lost savings, damage to other equipment, and incidental or consequential damages arising from the use, or inability to use this product. In no event will The GigRig be liable for more than the amount of the purchase price, not to exceed the current retail price of the product. The GigRig disclaims any other warranties, express or implied. By using the product, the user accepts all terms herein.

23 Reviews Hide Reviews Show Reviews

  • 5
    Quartermaster is more like Supreme Overlord

    Posted by Oscar Lanza-Galindo on Mar 7th 2023

    I've owned several switchers, and this is the absolute best I've utilized. The Flip-Flop mode is a true star, and with the right set up it is an absolute game changer. The QMX4 is like a well-fitted crew neck t-shirt, simple and underrated, yet a foundational piece that will feel comfortable and give you the confidence to bring on the swag.

  • 5
    QMX 4

    Posted by David Baceski on Jan 18th 2023

    I needed a second QMX to go with my QMX 8. I purchased the QMX4 this time. Both work great (and work great together). Solid, well-made, and stylish product.

  • 5
    Quartermaster QMX 4

    Posted by Nicholas Spencer on Sep 27th 2022

    Great product! The build quality and attention to detail is greatly appreciated! The switches are smooth and quiet and love the lower profile. Wish Dan and all the folks at GigRig company the best! You all are great people! P.S. I love watching “That Pedal Show” It’s actually where I heard of this product.

  • 5
    Quartermaster QMX - 4

    Posted by Don Jones on May 22nd 2022

    Never had a switcher before. Hooked the QMX - 4 up today and two things hit me immediately: First, I’ll never be without a switcher again. Second, this is what ‘quality’ is suppose to be! I do not say these things lightly… Don Jones…

  • 5

    Posted by Denis Sluka on Dec 13th 2021

    sounds great, fits on my tiny board, happy camper

  • 5

    Posted by Eric Craig on Oct 21st 2021

    Excellent, well thought out and executed.

  • 5
    Quartermaster QMX4

    Posted by Bill Haegele on Aug 3rd 2021

    Excellent product. Compact. Quiet switching. Flip flop mode works great.

  • 5
    Quartermaster 4

    Posted by Brian Jones on Jul 14th 2021

    This is my second Quartermaster. I grabbed this one to go on a small board. I love these. Makes those old pedals true bypass and also gets rid of the annoying “pop.” The signal is stronger and it saves wear and tear on your pedals. Great product!

  • 5

    Posted by Eric on Jul 6th 2021

    I purchased the QMX-4 to replace a Loop-Master 4-channel mechanical switch looper. The Loop-Master served me well over the past 3 years of giging (approx. 50+ gigs), but the switches didn't survive the COVID shutdown and neglect the past year and the switches started to fail. About 1 out of every 20 clicks on 2 of the 4 switches resulted in no sound until clicked again. So I've recently upgraded to the QMX-4. It dropped in with no issue. I am already using a Strymon Zuma PSU so the extra current QMX-4 needed was no issue. I love the soft touch footswitches and look forward to testing out it's reliability over the years to come. I did notice the QMX-4 is less noisy than the Loop-Master, I assume it might have to do with the isolated send and return jacks versus the loop-mater which are all gnded to the chassis.

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