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All amplifiers, pickups, and pre-amps have a 45 day return policy. If you are not satisfied with your purchase you may return it for a refund. You will be responsible for round trip shipping fees. Credit card fees are non-refundable (3-4% depending on the card).

Pickups which have been installed are not eligible for returns.

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ROLAND PROMOTION: But an AC-90 amp and get an Ultimate Support amp stand free! Visit Roland Promotions for details.

The highly anticipated addition to Roland’s AC-series amp family has arrived! Loaded with high-performance neodymium speakers and 90 watts of power, the AC-90 provides a rich, powerful sound while remaining lightweight for easy transport. The AC-90 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.

    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; speaker stand mountable
    Quality carrying case included

Legacy of Excellence

The AC-90 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 AC-90 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 AC-90’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.

Versatility

In addition to its amazing acoustic-guitar amplification qualities, the AC-90 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.

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
Controls
    (GUITAR Channel)
    PICKUP Switch (PIEZO/MAGNETIC), SHAPE Switch, VOLUME Knob, Equalizer Knobs (BASS, MIDDLE, TREBLE), CHORUS Switch
    (MIC/LINE Channel)
    PHANTOM Switch, SELECT Switch (MIC/LINE), VOLUME Knob, Equalizer Knobs (BASS, MIDDLE, TREBLE), CHORUS Switch
    CHORUS Knob, REVERB/DELAY Knob
    (ANTI-FEEDBACK)
    FREQUENCY Knob, START Button
    MUTE Switch
    MASTER Knob
    POWER Switch
Indicator
    CHORUS (GUITAR Channel, MIC/LINE Channel)
    ANTI-FEEDBACK
    MUTE
    POWER
Connectors
    GUITAR Channel Input Jack (1/4" phone type)
    MIC/LINE Input Jacks (XLR type, 1/4" phone type)
    AUX IN Jacks (RCA phono type,1/4" phone type)
    DI/TUNER OUT Jack (1/4" TRS phone type)
    LINE OUT Jacks (XLR type, 1/4" phone type)
    SUB WOOFER OUT Jack (1/4" phone type)
    PHONES Jack (Stereo 1/4" phone type)
    FOOT SWITCH Jacks (1/4" TRS phone type)
Power Supply
    AC 117 V, AC 230 V, AC 240 V (50/60 Hz)
Power Consumption
    30 W
Accessory
    Carrying Case
    Owner's Manual
Options
    Foot Switch: BOSS FS-5L (Mute On/Off), BOSS FS-5U, BOSS FS-6
    Connection Cable: PCS-31

Size and Weight

Width
    464 mm
    18-5/16 inches
Depth
    303 mm
    11-15/16 inches
Height
    326 mm
    12-7/8 inches
Weight
    11.7 kg
    25 lbs. 13 oz.
* 0 dBu = 0.775 Vrms

Roland AC-90 Manual

Roland AC-90 Brochure

Roland AC Series Brochure

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