Gearank

Boss takes the best features of their flagship GT-100 multi-effects pedal and compresses them all into the GT-001, a desktop guitar processor.

This form factor makes it ideal for recording and practice, but more importantly, it also works nicely with headphones.

As such, it comes with Boss' latest COSM technology amp models and digital effects but at a more space saving size.

And since it can also double as your USB audio and Midi interface (complete with an XLR mic input), you are getting even more use out of just one unit.

Features:

• Tone: 8 Comp, 22 OD/Dist, 30+ Effects, 27 Amp Models, Multiple Cab & Mic Models
• Presets: 200 User, 200 Default
• Input: 1 x 1/4", 1 x 1/8" Aux In
• Output: 1 x 1/4", 1 x 1/8" (Headphones)
• Extra Features: USB and MIDI Audio Interface, Can be powered by USB Power Banks for Portability
• Dimensions: 8.3" x 5.4" x 2.3"
• Weight: 1.1 lbs.
• Power: USB Bus, Included Power Adapter

Pros
Users and exerts alike appreciate the simplicity and intuitive design of the Boss GT-001. Trevor Curwen of Music Radar describes it as "A convenient source of guitar sounds for recording and practice at home." While it may not be everyone's cup of tea, those who are looking for a compact desktop guitar processor have mostly great things to say about the unit. Sound quality also gets a lot of thumbs up, especially when listening through headphones where amp modeling and cab simulation really shines through. Having been made by Boss, reliability is a given, as attested to by experts and regular users alike.

Cons
As expected, there are some purists who are not impressed with the unit's amp modeling quality, while others are not too happy with the side mounted ports which limit the units position on a desk.

Overall
Boss hit multiple birds with the GT-001, a powerful guitar processor, recording interface and headphone amplifier - all in one package.

Although this was previously on our recommended list, there are now more highly rated options available which you can see in our guide to The Best Guitar Multi Effects Processors.