Boss Katana Mini 7W Battery Powered Combo Amp


92 out of 100. Incorporating 2000+ ratings and reviews.

Street Price: 

Boss Katana Mini 7W Combo Amp

The Boss Katana series is generally well received by critics and professionals with the larger 100-watt variants getting a lot of stage and studio time. Boss aims to continue this stellar performance with the Katana Mini: a 7-watt portable combo amplifier.

The Katana series can best be thought of as Boss’s answer to Fender’s Mustang line, featuring a variety of onboard effects and amp models.

The Katana Mini is the smallest and most portable amp in this family, with a 7W amp section and 4" speaker. More importantly, it carries with it the same well-received multi-stage analog gain circuit that helps give life to its three voicings that includes clean, crunch and brown (high-gain). Also packed in this amp is a 3-band EQ and delay effect.

Also, the Boss Katana Mini runs on 6 x AA batteries, and can work with an optional power supply.


  • Power Rating: 7-Watts
  • Battery Life: Up to 7 Hours with Alkaline batteries or up to 9 Hours with rechargeable Ni-MH batteries
  • Power Source(s): 6 x AA Batteries or DC
  • Speaker: 4”
  • Effects: Distortion, Delay
  • Controls: Gain, Volume, Bass, Middle, Treble, Delay Time, Delay Level
  • Input(s): ¼” Instrument, ⅛" Aux
  • Output(s): ⅛" Headphone / Rec
  • Weight: 2 lbs 11 oz
  • Dimensions (Height x Width x Depth): 7.13” x 9.06” x 4.63”


Many users found that the amp has an excellent high gain sound which is great for modern styles like metal. Its mid-gain sounds are also well appreciated, along with its delay, which some have tweaked to sound like room reverb. While offering fewer options in terms of tones, owners of the larger Katana amps mentioned that the feel of the Katana mini is close, if not equivalent to their larger amplifiers. It also rates highly due to its portability and the convenience that come with having a small amp that runs on batteries. Many are also pleased about the size of the speaker, which is a bit larger than most portable amps.


Some found that the Katana Mini didn't have enough volume for their liking when compared to other battery-powered amps they owned. Due to the construction, users felt that the tone sounded boxy despite feeling great. Some users are not convinced with its brown (high-gain) voicing, describing the sound as a bit too scooped. There are also a few who report humming noise especially when the amp is cranked. Some users give it slightly lower scores because the the power supply is sold separately. There are also those who feel that it should've come with built-in reverb.


If you're a fan of high gain modded "British" tones, the Katana series, or both, the Katana Mini is a good amplifier to get. It may not be as loud as other battery-powered amps but loudness isn't a priority if you're buying a battery powered amp for home use.

NB: This was previously on several of our recommended lists, however there are now more highly rated options available which you can find in our guides to The Best Battery Powered Guitar Amps, The Best Practice Amps and The Best Cheap Guitar Amps Under $100.