Item #: ROL AC90 LIST

Roland AC90 Acoustic Guitar Amplifier

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Product Description

The Roland AC90 Acoustic Amplifier is the ultimate amp for any acoustic guitar player.
Loaded with high-performance neodymium speakers and 90 watts of power, the AC90 provides a rich, powerful sound while remaining lightweight for easy transport. The AC90 employs a stereo 2-way speaker system that delivers transparent highs, great for the built-in multi-band stereo chorus, while also providing incredibly powerful low-frequency performance.

Roland AC90 Features

  • Lightweight yet powerful featuring state-of-the-art neodymium speaker technology
  • Stereo 2-way speaker system provides full-range performance
  • Natural stereo acoustic sound
  • 90 watts of stereo power (45W+45W)
  • Dual channels: Guitar input (Piezo/Magnetic) and phantom-powered Mic/Line input
  • Roland’s famous stereo multi-band chorus with WIDE mode, plus reverb/delay
  • Anti-feedback control feature
  • Convenient onboard tilt stand; optional speaker stand available
  • Quality carrying case included
Legacy of Excellence
The AC90 isn’t just any new amp on the block … it’s the long-awaited addition to Roland’s industry-leading AC-series amp family. Roland’s reputation for world-class sound, amazing performance, portability, and top-quality construction in the AC series are all upheld in this stunning new amplifier.

Power Performer
With 90 watts of stereo power (45W+45W) driving top-quality neodymium speakers, the AC90 delivers exceptional full-range performance, from shimmering, crystal-clear highs to full-impact bottom end. This amp is more than capable of cutting though a wall of sound.

Anti-Feedback Control
Enjoy maximum volume without feedback, thanks to the AC-90’s sophisticated ANTI-Feedback feature. This allows you to roam the stage with confidence, even with 90 watts of powerful sound at your back.

Immersive Stereo FX
The AC90’s onboard stereo effects benefit from Roland’s decades of industry-leading R&D. Experience the amazing spatial depth and lush sound of the stereo multi-band chorus, complete with newly developed WIDE mode. Delay and Reverb are provided as well, and can be controlled via footswitch.

In addition to its amazing acoustic-guitar amplification qualities, the AC90 can also function as a portable PA system thanks to its dual-channel architecture, sub output and phantom-powered Microphone input. Sing and play guitar through one convenient amplifier, with impressive power and full-range performance.

See all items from Roland
Helpful Info about the Manufacturer
Phone:  (323) 890-3700 Warranty:  M.I. Products: 1 year parts, 90 days labor
Instrument Amps: 3 years (1 year on speakers) parts, 2 years labor
Rackmount Power Amps & EQs: 3 years parts & labor
BOSS Compact Pedals: 5 years parts, 90 days labor
BOSS (other): 1 year parts, 90 days. labor
ep, MT, TL, E-Series: 1 year parts, 90 days labor
CPM-300 Powered Mixer: 3 years parts, 3 years labor
AC Adapters, Mech, Footswitches, Headsets: 90 days parts, 90 days labor

Product Specifications

Product Specifications
Roland AC90 Specifications
  • Rated Power Output: 45 W + 45 W
  • Nominal Input Level (1 kHz):
    • Guitar Channel: -10 dBu
    • Mic/Line Channel: -50 / -10 dBu
    • Aux In: -10 dBu
  • Nominal Output Level (1 kHz):
    • DI/Tuner Out: +4 dBu
    • Line Out: +4 dBu
    • Sub Woofer Out: +4 dBu
  • Speakers:
    • Woofer 20cm (8inches) x 2
    • Tweeter 8cm x 5cm x 2 (3inches x 2inches) x 2
  • Connectors:
    • Guitar Channel Input Jack (1/4 inch phone type)
    • Mic/Line Input Jacks (XLR type, 1/4 inch phone type)
    • Aux In Jacks (RCA phono type,1/4 inch phone type)
    • DI/Tuner Out Jack (1/4 inch TRS phone type)
    • Line Out Jacks (XLR type, 1/4 inch phone type)
    • Sub Woofer Out Jack (1/4 inch phone type)
    • Phones Jack (Stereo 1/4 inch phone type)
    • Foot Switch Jacks (1/4 inch TRS phone type)
  • Power Consumption: 30 W
  • Included Accessories: Carrying Case, Owner's Manual
  • Dimensions: 18-5/16 W x 11-15/16 D x 12-7/8 H inches, 25 lbs. 13 oz.

Customer Reviews

Review: Blue Sky from Pittsburgh, PA Submitted: 6/1/2009

Product Rating5 out of 5 stars.


Great self-contained system for solo acoustic performance
Product Rating

As an owner of other Roland amplifier products, the AC90 exhibits the same high quality of components and workmanship that I've come to expect from this manufacturer. The unit was solid, defect and blemish free, and came with a well padded carrying bag to help keep it that way.

N/A - I've only had the product for about a week.

Your general opinion of this product.

In general, I love it! The sound quality and volume is amazing for its relatively small size. I was somewhat disappointed, however, in the anti-feedback control, unaware that, according to the manual, it is "not designed to work with respect to the high-frequency feedback that can occur when using microphones." I found this to be true, though a good quality vocal microphone with a tight pickup pattern worked very well as long as I was not positioned directly in front of the amp. The first gig with it was perfect. It's a keeper.

The unit is amazingly light - only about 25 pounds. You can easily carry it in the provided bag with the stap slung over one shoulder. The controls are simple and easy to understand - even without reading the manual.

Great, natural acoustic sound for your guitar, and vocals too.

The amp covering was clean and tight, with no imperfections.


Review: DJ NY from Roslyn, NY USA Submitted: 5/18/2009

Product Rating5 out of 5 stars.


It's Like a Mini PA!

It feels strong. I'm not sure what it's made of, but it's definitely a sturdy piece of equipment. I don't move it around much though, just to the occasional coffee shop.

It's been work great since I got it close to a year ago. I couldn't Imagine playing my ovation acoustic without it.

Your general opinion of this product.

I like it alot, aside from making my acoustic sound awesome, it makes a nice mini PA for listening to music. My nephew and nieces love it cuz they come over and sing into my PG58 while I play the guitar.

I like the built in reverb and chorus effects it makes my guitar and vocals sound warmer and more rounded.

Warm I'd say, but that could just be the way I have it EQ'd.

It looked new when I got it and it still does. I take pretty good care of my equipment though.

No action, it's an amp not a guitar


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