Roland Micro Cube Bass RX Bass Amp

Battery-powered Bass Combo Amp with 4" Speakers, 8 Amp Models, 6 Digital Effects, Tuner, Aux Input, and Headphone/Recording Output
4.5/5 28 Write review Item ID: MicroCubeBsRX
Roland Micro Cube Bass RX Bass Amp image 1
Roland Micro Cube Bass RX Bass Amp image 1
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Roland Micro Cube Bass RX Bass Amp
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An Ultra-Portable MICRO CUBE Built for Bass Players!

The Roland MICRO CUBE BASS RX compact bass guitar amplifier packs a great-sounding modeling bass amp into a battery-powered package! Using Roland's proprietary FFP technology and a lightweight enclosure, the MICRO CUBE BASS RX also includes onboard stereo power amps, four 4" speakers, eight COSM amp models, six digital effects, and a built-in tuner. There's also a Rhythm Guide function, an aux input for playing along with your MP3 or CD player, and even a headphone out that doubles as a direct recording output on the MICRO CUBE BASS RX.

Roland MICRO CUBE BASS RX Compact Bass Guitar Amplifier at a Glance:
  • Battery-operated bass amp
  • Efficient at home and beyond
  • Recording output

Battery-operated bass amp
With the new MICRO CUBE BASS RX, Roland pioneers a battery-operated bass modeling amplifier featuring Roland's proprietary FFP technology packed into a lightweight and indestructible box, making it a dream come true for bass players everywhere.

Efficient at home and beyond
Thanks to the custom speakers and new amp technology featuring Roland's proprietary drivers, this amp is extremely efficient, making it the perfect amp to use when practicing at home. Since the MICRO CUBE BASS RX amp can run on battery or AC power, you can take it virtually anywhere.

Recording output
The dual-purpose headphones/recording output allows you to plug-in a set of headphones for private practice sessions, or connect directly into a stereo mixer or recording device for accurate and simple signal transfer directly from the MICRO CUBE BASS RX.

Roland MICRO CUBE BASS RX Compact Bass Guitar Amplifier Features
  • Stereo power amplifiers and 4 newly developed 4" speakers
  • 8 COSM amps, 6 digital effects, and a chromatic tuner built in
  • Rhythm Guide function for practical rhythm training
  • Stereo aux input for CD/MP3 players and a headphones/recording out
  • Battery driven (6 AA, maximum 13-hour continuous use)
  • AC adaptor included
  • Compact enclosure with carrying strap
The Roland MICRO CUBE BASS RX amp sounds great, and you can take it anywhere!

Additional Media

Bass Guitar Amp Buying Guide
Roland MICRO CUBE BASS RX Owners Manual
Great Deals from Roland!
New In Stock At Sweetwater

Tech Specs

Type Solid State
Number of Channels 1
Total Power 5W
Speakers 4 x 4"
Effects Yes
Compression Yes
EQ 3-band
Amp Modeling Yes
Number of Models 8
Inputs 1 x 1/8" (Stereo), 1 x 1/4" (Mono)
Outputs 1 x 1/4" Headphones
Footswitch I/O Yes
Height 11.63"
Width 11.69"
Depth 8.38"
Weight 15 lbs.
Manufacturer Part Number MICRO CB-RX

Customer Reviews

Based on 28 reviews
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Use on acoustic guitar and electric guitar

I bought this amp a few years ago to use on a military deployment. I found it works really well on acoustic guitar, my roland hand sonic and I use it regularly as a guitar practice amp. The one button compression is perfect for jamming with my acoustic guitar. The bassman setting with the gain dialed up and some reverb is a great rock sound. It also sounds great with an MP3 player through the aux imput. This is gem of an amp and very versitile especially when you consider it can run off of batteries.
Music background: gigging musician with day job

I think its magic

Ive tried about every small practice amp you can think of, they all fell short. This on the other hand, is the answer . Im not a big fan of modeling or effects, but these are actually pretty good. teble , bass, mid, and gain? Check. Tuner? check. Metronome and drum machine? check. works for bass, guitar, and voice? check. Ac or dc power? check. Aux in and out? check. Headphone jack? check. Great sound? check. Roland did their homework on this one! A+++++


I've seen this little amp for years now, and was left shocked by the price. How can something this small be this expensive? After our new bassist showed up with one at practice, and I heard it, and he let me play around with it for a week, I was amazed. Bass practice amp? OUTSTANDING! guitar practice amp?OUTSTANDING! we use the one I bought as a practice P.A. and it is more than adequate. Besides sounding great with unbelievable output, it has a tuner, metronome, drum machine, really good effects, modeling (which I've never been a fan of, and don't use) full treble, mid and bass controls, volume and gain, and it can even be run on 6 AA batteries( which I haven't tried yet) . I bought this to replace a Mackie Free Play which advertises 300 watts of power...this is way more versatile, powerful, and sounds much better. Couldn't be happier. A++++++. Thanks Bob Furlong at Sweetwater!
Music background: Professionally trained musician, now hobbyist

Roland micro cube rx bass amp

First of all, the size of this amp is so small compared to the amount of volume that comes out with so much clarity, you look at it and say WOW. With 8 amp models and 6 digital effects to play around with you can customize your own sound. An awesome buy!!
Music background: I've been playing bass and harmonica for over 40 years . I own a 67 P bass, aTacoma electric/acoustic and an Ibanez. I usually play these through an Eden 550 head and a 210 bottom but for smaller venues, I use the Roland cube.

An Amp For The Ages (and ageless)!

This is a great product! No, it won't fill a stadium or auditorium, but it could be used with a mic hung over it and run thru a P.A. because it gets some really good sounds with all the onboard amp modeling, effects, etc. For me, it's the practice amp that I've been trying to find for a couple years. Plus, with the battery powered capability, I can use it for several portable applications where AC power isn't available, even if it's just sitting out on my deck or patio. Plug an iPhone or .mp3 device in and learning songs becomes a breeze. Thanks to Jon Gillespie for hooking me up with this!
Music background: Been playing for 50 years at both the touring professional level as well as locally.

Sweetwater Advice

Carson McClain

Technology is our friend and this amp proves it. I am just wondering if there is anything this can not do! The amp models sound great as do the FX, you can plug in an MP3 player to jam with, and you can even use the internal beats to practice your playing speed. A great amp for the apartment, or for the beginner.
See also: Bass Combo Amps, Roland, Roland Bass Guitar Combo Amps