BOSS GT-100 Multi Effects

£359.00 In Stock

FREE Delivery on Monday

Click and Collect available

BOSS GT-100 Multi Effects

Was £399.00 Save £40.00


In Stock

3 Available

Order now for FREE Delivery on Monday

Includes Extended Christmas Exchange

Buy with confidence: Items bought 1st October 2021 to 24th December 2021 are eligible for our Extended Christmas Exchange & can be exchanged until 31st January 2022.
Learn More

Make 3 payments of £119.67 No fees. Learn more

Buy Now, Pay 2022

  • No Deposit
  • Pay nothing for up to 12 months
  • Apply in minutes
Apply Now

FREE Delivery on Monday

With 1 hour Delivery slot

Click & Collect

Live Stock levels from all our stores.

Collect on Wednesday
Collect on Wednesday
In Stock, Collect Tomorrow
Collect on Wednesday
In Stock, Collect Tomorrow
In Stock, Collect Tomorrow

Frequently Bought Together

Total Price: £

Recommended Bundles

Bundle Price: £392.99

Manufacturer's ID: BOSS GT-100

What we say:

BOSS's flagship range of multi-effects processors, the GT range, have long been the standard to beat when it comes to floor based processing. The current model in the range is the superbly powerful GT-100, now in it's version 2.0 firmware edition.

It should go without saying that the quality of effects available is industry standard quality: BOSS have set the bar so often with their versions of effects like Chorus and delay that you really know what to expect with this big box. It does not disappoint! The actual processing power is large so you can really go to town with your virtual effects chains. The COSM-modelled amps and effects provide a very realistic and three-dimensional platform for you to build up highly accurate and satisfying tones.

New additions include some further high gain amp models (you'll be able to discern form the not-so-mysterious titles of 'BGNR UB Metal' and 'ORNG Rock Reverb' which amps they've taken close inspiration from!), some new effects algorithms (Rotary 2 and Acoustic Guitar Simulator) as well as an enhanced USB/MIDI interface for flexible recording and a unique mono 1/4" jack to MIDI connection for using more synth-based sounds and devices.

There is loads going on under the hood of the GT-100 that allows you a more natural playing experience as well as a higher quality one. The A/B channel divided allows two sounds to be chained together and merged, even via picking strength! The creative guitarist will have a field day with this feature. The 'Accel' pedal gives you control over multiple different parameters at once. Relatively normal on synths but more or less unheard of with guitar technology.

These are just a few of the tricks under the sleeve of this sonic wizard. The most important things to remember though are that, regardless of the power and processing available, this unit SOUNDS really good and is very simple to operate. This alone is plenty to get most players interested!


In its original incarnation, BOSS completely remodelled all of the COSM amps in the GT-100, distilling decades of sound research to create the best-sounding guitar processor the company has produced to date. 

Reaching far beyond conventional vintage amp modelling, the GT-100 includes a host of all-new amps that deliver amazingly transparent clean tones to ultra-high gain modern sounds and everything in between. At the core of the GT-100 is BOSS’ new proprietary DSP chip, a powerful processor that provides unparalleled muscle for COSM amps and effects. Thanks to this powerful new chip, the GT-100’s COSM amps are the best yet, with a dynamic touch and response that truly captures the feel and expressiveness of the world’s finest tube-based amplifiers. In version 2.0, two new amp models (BGNR UB Metal and ORNG Rock Reverb) have now been added. 

The GT-100 is also a powerful multi-effects processor packed with a huge array of effects, including overdrives, distortions, delays, pitch shifters, modulation, reverb, and many more. The newly developed ACCEL pedal lets guitarists create explosive effects during live performances by adjusting multiple effects parameters in real time with one simple foot press. In version 2.0, Boss have added new MDP effects powered by innovative BOSS technology - Tera Echo, Overtone, and A-DIST, as well as new Rotary 2 and Acoustic Guitar Simulator effects types.

Dual displays make navigation and tone programming simple, with intuitive parameter adjustment via easy-to-grab knobs. The GT-100 also includes the acclaimed EZ TONE, which gives everyone from beginners to pros’ the ability to dial up world-class tones with just a few tweaks. AMP CUSTOMISE and OD/DS CUSTOMISE functions, which enable the creation of original amps and OD/DS are also included. In version 2.0, monophonic guitar-to-MIDI conversion from the normal 1/4-inch guitar input (no additional pick-up is required) allow users to access additional sounds from external midi-controlled sound sources such as software or hardware synthesisers. The enhanced USB audio/MIDI interface is also now available with multi-channel operation for flexible recording and efficient re-amping. Support for the BOSS TONE STUDIO editor/librarian for Mac/Windows and new GT-100 Version 2.0 patches (available for free at has been added too.

Housed in a road-tested, all-metal GT chassis with a sleek black finish, the GT-100 is ready for action on stage and in the studio. Eight onboard foot switches provide control over patch selection, as well as immediate access to the built-in Phrase Looper and ACCEL functions. The integrated heavy-duty expression pedal offers foot control over volume, wah, pitch effects, and more. Additionally, the new quick-access Manual mode instantly transforms the GT-100 from a patch-based multi-effects unit to a pedalboard full of legendary stomps with individual on/off control.

·         Advanced COSM amps that model vintage amp tones and delivers never-before-heard tones

·         Dual-LCD for simple and intuitive operation with direct access to every parameter

·         Improved EZ Tone TONE feature with graphical TONE GRID for constructing new patches; AMP CUSTOMIZE and OD/DS CUSTOMIZE lets you easily create original amps and overdrive/distortion by customizing their behavior

·         Newly developed ACCEL pedal for simultaneous control of multiple parameters

Now available as a free download for Mac or Windows, BOSS TONE STUDIO gives you an intuitive graphical interface for creating and editing GT-100* effects patches from your computer via USB. The software also makes it easy to organize and archive patches, and to load them as needed for different gigs and recording sessions. If your computer has Internet access, BOSS TONE STUDIO provides an integrated connection to the BOSS TONE CENTRAL website, where you can preview and download free gig-ready patches created by top guitar pros directly into the GT-100. 

*GT-100 Version 2.0 software is required for compatibility with BOSS TONE STUDIO.

BOSS TONE CENTRAL ( is the ultimate destination for all players that use BOSS products. Evolving to include a growing selection of BOSS gear, this newly launched site gives you access to lots of premium content, including demo videos and free patches created by famous guitarists, touring pros, and session players. Check back often for new patches, how-to videos, artist interviews, and much more.

Customer reviews

Overall Rating 5 (12 reviews)

ROBERT D. - 1/9/2020

Gerard B. - 25/4/2020

Charlie loves everything he has purchased from you.

Angelo C. - 8/9/2017

great effects ever with lovely price deal and finance. u got everything in one place. fully satisfy with my boss gt-100.

D.G. - 27/7/2015

perhaps a little ambitious for my particular skill level but endless hours of fun trying to work it out thats for sure.

J.P. - 20/3/2015

Easy to use, good value, excellect variety of sound, it rocks !

L.M. - 3/12/2014

Got a Boss GT-100 ...Got to say at this bottom end price range, it's very good value.Would have liked an Axe FX-2, but hey ho, at over £2000 it takes some justification if your only a semi-pro. The Boss is reasonably easy to get on with, but had to go to You Tube for some tuition on programming user patches, otherwise, a cheap spare amp (that works great into the PA) in case my valves let go at a gig.

P.J. - 16/5/2014

The Gt-100 is very versatile and easy to use. The COSM amp sounds are good too. You have to read the manual to get the best from it though.

G.C. - 17/4/2014

Some great sounds out of the box, and very easy to mess with pre loaded sounds to create your own variations. Haven't tried making a sound from scratch yet.

N.M. - 10/7/2013

Great service and fast delivery.

C.J. - 9/4/2013

Fabulous piece of kit will have years of fun working it all out !

A.M. - 9/4/2013

the best so far much better than the gt10 and Digitech GSP 1101

M.W. - 23/10/2012

Show more reviews