“A desktop amp that crosses over into serious recording, rehearsals and more”: Boss Katana Air EX review

More Air, vicar? Boss has pumped up its popular wireless desktop amp with some specs that make it a viable option for stage, studio and home

Boss Katana Air EX
(Image: © Future / Olly Curtis)

Guitar World Verdict

If you’re looking for a desktop amp that crosses over into serious recording, rehearsals and more, the Katana Air EX is an ideal choice.

Pros

  • +

    More of a professional amp look and feel than its predecessor.

  • +

    ‘Brown’ custom lead sound from the Waza Craft head sounds terrific when teamed with a brawny humbucker.

Cons

  • -

    None.

You can trust Guitar World Our expert reviewers spend hours testing and comparing guitar products so you can choose the best for you. Find out more about how we test.

Ever since its introduction, the Boss Katana range has become a byword for affordable digital modeling, with a wide range of guitar amps covering home, studio, and stage use. 

In the home amp market, small is often beautiful, and the Katana Air stereo desktop guitar amp is a popular choice, pushing out up to 30 watts through a pair of three-inch speakers, with a wireless guitar transmitter and battery power to remove untidy wires and cables. Now Boss has added yet another option to the range, for those who like the wireless thing but want more: the Katana Air EX. 

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Nick Guppy

Nick Guppy was Guitarist magazine's amp guru for over 20 years. He built his first valve amplifier at the age of 12 and bought, sold and restored many more, with a particular interest in Vox, Selmer, Orange and tweed-era Fenders, alongside Riveras and Mark Series Boogies. When wielding a guitar instead of soldering iron, he enjoyed a diverse musical career playing all over the UK, including occasional stints with theatre groups, orchestras and big bands as well as power trios and tributes. He passed away suddenly in April 2024, leaving a legacy of amplifier wisdom behind him.