Go to Content
Special financing available No Credit Needed Financing.

Roland MICRO CUBE GX Guitar Amplifier

The New Standard in Ultra-Compact Amps!


(24 reviews)


Print page
You need Flash player 8+ and JavaScript enabled to view this video.
  • Images (10)
  • Video (2)
MSRP: Old Price $224.99 Discounted Price $159.99 Save : $65.00 (29%)

MSRP: Old Price $224.99 Discounted Price $159.99 Save : $65.00 (29%)
Add to Cart
A top-seller worldwide for nearly 10 years running, the MICRO CUBE is the most popular battery-powered amp of all time. The new MICRO CUBE GX retains the tiny size and huge sound of its legendary predecessor while adding many great additions and improvements, including i-CUBE LINK, increased output power, a chromatic tuner, and a MEMORY function for saving your favorite settings. The massive, high-gain EXTREME brings the total number of COSM amps to eight, while HEAVY OCTAVE has been added to the onboard effects section for thick, ultra-low tones. i-CUBE LINK opens many new opportunities for practice and recording, providing a built-in audio interface for working with music apps on your iPhone, iPad, or iPod touch.  

  • Ultra-compact guitar amp with custom-designed speaker
  • Eight COSM amp tones, including the ultra-heavy EXTREME amp
  • Eight DSP effects, including HEAVY OCTAVE and dedicated DELAY/REVERB with spring emulation
  • MEMORY function for saving favorite amp and effects settings
  • i-CUBE LINK jack provides simple audio interfacing with Apple’s iPhone, iPad, and iPod touch (interface cable included)
  • Free CUBE JAM app for iOS plays songs and minus-one jam tracks, and lets you record the MICRO CUBE GX’s COSM amp tones along with music playback
  • Chromatic tuner built in
  • Runs on battery power or supplied AC adapter; carrying strap included

Huge Tone to Go
The MICRO CUBE GX features the same ultra-compact footprint, battery-powered operation, and big tone that made the original MICRO CUBE such a massive hit around the globe. With up to 25 hours of playing time using six NiMH AA-size batteries, you can enjoy uninterrupted fun while jamming at home, at the beach, on camping trips, at parties—wherever! Increased power output delivers even better performance than before, and a chromatic tuner is built in, eliminating the need to carry an external tuner when you play.  

World-Class Amps and Effects
Filled with Roland’s renowned COSM amps, the MICRO CUBE GX provides tones for playing any musical style, from ultra-clean jazz to heavy rock and everything in between. The newly added EXTREME amp kicks things up a notch, giving you a massive voice for crushing, in-your-face metal riffs. There’s also a MIC setting for using the amp with a vocal microphone. Five different EFX types are available to sweeten your sound, with a new HEAVY OCTAVE effect that works great for adding unique, ultra-low power to distorted tones. An independent DELAY/REVERB processor is onboard as well, with a newly added spring reverb option for authentic surf and roots-rock sounds.

Total Recall
The new MEMORY function turns the MICRO CUBE GX into a dual-channel amp, greatly increasing its versatility. It couldn’t be simpler to use—just dial up the amp tone and effects you want, hold the MEMORY button for a few seconds, and your settings are saved! After that, you can toggle between the saved setup and the current knob settings with a quick button press. Use it for saving a favorite sound, switching between rhythm and lead tones, or calling up a special sound for a particular song or style.    

i-CUBE LINK: Built-In Interface for iOS Devices
Onboard the MICRO CUBE GX is Roland’s innovative i-CUBE LINK interface, which lets you integrate with your iPhone, iPad, or iPod touch using a real guitar amp with great tone. Unlike typical bulky and inconvenient iOS guitar interfaces, i-CUBE LINK connects to your device’s audio jack quickly and simply with the included cable, providing two-way communication with your favorite music apps. With i-CUBE LINK, you can play along with music tracks and send studio-quality COSM tones with effects straight into the recording app of your choice. The versatile i-CUBE LINK jack can also be used as a simple stereo input, enabling you to plug in nearly any music player or audio device and play it through the MICRO CUBE GX.

CUBE JAM App: Powerful, Fun, and Free!
Available for free from the App Store, the Roland CUBE JAM app turns your iOS device into a fun command center for jamming, recording, and learning. Play back commercial songs and minus-one tracks through the MICRO CUBE GX via i-CUBE LINK and riff along for hours with the amp’s great COSM tones. CUBE JAM also records audio through the i-CUBE LINK connection, letting you capture your jams with a single touch. After recording, you can adjust the volume of your guitar and backing music independently in the app, then export your mix to a 16-bit, 44.1 kHz WAV file. CUBE JAM also includes powerful tools for music practice, including independent speed and pitch adjustment of audio playback, Center Cancel to remove solos and create your own jam tracks, and more.


Rated Power Output
  • 3 W

Nominal Input Level (1 kHz)
  • INPUT: -10 dBu/1 M ohm
  • i-CUBE LINK/AUX IN: -10 dBu

  • 12 cm (5 inches) x 1

  • POWER switch
  • MEMORY button
  • TUNER button
  • GAIN knob
  • VOLUME knob
  • TONE knob
  • MASTER knob

  • EFX

  • INPUT jack (1/4-inch phone type)
  • i-CUBE LINK/AUX IN jack (4-pole miniature phone type)
  • REC OUT/PHONES jack (Stereo miniature phone type)
  • DC IN jack

Power Supply
  • AC adaptor
  • Alkaline battery (AA, LR6) x 6
  • Rechargeable Ni-MH battery (AA, HR6) x 6

Current Draw
  • 155 mA

Expected battery life under continuous use
  • Alkaline battery: Approximately 20 hours
  • Rechargeable Ni-MH battery: Approximately 25 hours (When using batteries having a capacity of 2,400 mAh.)

* This can vary depending on the capacity of the batteries and the conditions of use.

  • 247 (W) x 172 (D) x 227 (H) mm
  • 9-3/4 (W) x 6-13/16 (D) x 8-15/16 (H) inches

  • 2.7 kg
  • 6 lbs

Included Accessories
  • Owner's Manual
  • AC adaptor
  • Strap
  • Mini cable (4-pole miniature phone type)

Order your Roland Micro Cube GX from Sam Ash Direct today with the security of our 45/60 day return/price protection policy, and be sure to take advantage of our fast, free shipping.

⚠️Warning: This Product can expose you to chemicals including DEHP which is known to the state of California to cause cancer and birth defects or other reproductive harm. For more information go to www.p65warnings.ca.gov.

Things You Will Get:

    Guitar Amplifier

I would recommend the Mico Cube to any CBG enthusiast.


I'm a Cigar Box Guitar enthusiast. The Micro Cube GX is great for CBG's. I can get numerous sounds from very clean to screaming. Plus with batteries it travels easy, so I can take it anywhere.



I would for sure purchase this amp and recommended it


I use this product for when I'm home or go out. It's easy to Travel with. Loud sound for its size. Love the features the amp comes with. Great for jamming out on. It's also takes battery's or you can plug it up. The only thing I wish it had was a rechargeable battery pack but other then that this amp is worth the purchase



I will shop here again


Awesome service!🤟



Great little amp.


Advertised as used floor femo. Looks brand new. These are great little amps. I already have one. This will be a Christmas present.



Would buy again


Works great with Strat & LP as well as a Markley acoustic pup!



I recommend a cube, I have seen many street musicians use it


I love my cube, even the drummers tell me to turn it down. I play mandolin and can amp it to play with other amped instruments. So I live in Santa Cruz, and its last Sunday night at the beach, I got my cube with me and a couple of drummers and we played to a beautiful pink sunset. Love it.



I would recommend this product to my family and friends.


The amp is everything described. It's a great little portable with great sound. The overall purchase experience was great.

Dan the man

Hackleburg, AL


Roland Micro Cube GX


Really love this little amplifier. Having the option to run on batteries makes it convenient to take anywhere. Loaded with special effects and features to get that perfect sound I look for with an acoustic guitar. This is actually my second Roland Micro Cube GX. I now have two for when my buddies come over and need to plug in. I also have a Roland Mobile AC amp, and two Roland AC 60 acoustic amps. They make really fantastic products.




My second one, and they're still great


This is my second purchase of this particular model. I've had one for three years and have enjoyed it greatly for practice and also some recording applications. Just bought another for my son, with some nice updates. I really don't use the thrash-y, distorted sound options, but there's a fair amount of latitude in how you can tweak the other settings. I think Roland's COSM technology delivers a lot of value for the money.


Wilmington, DE


The perfect battery powered amp.


The Microcube is hands down one of the best if not the best battery powered amp in the market. Walk down the street in new york and most musicians are playing through one. With 8 different amp types you can play any style of music. Not only that you get 8 different effects to add to your arsenal. A must have for anyone that wants to be a street performer.


Edison, NJ

MICRO CUBE GX Guitar Amplifier

4.9 24


Series CUBE
Warranty Info:

Three years parts, two years labor warranty