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Roland Acoustic Chorus Guitar Amplifier

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SKU: # 438650
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Compact stereo amp for acoustic guitarists and singer/songwriters.

Ideal for gigging guitarists and singer/songwriters, the versatile AC-40 delivers top-quality stereo acoustic amplification in an affordable, mobile package. The latest addition to Roland's trusted Acoustic Chorus family features clean, loud, and natural sound reproduction for acoustic instruments, with a dual-channel configuration that supports both a guitar and a microphone. Onboard stereo effects include a high-quality digital reverb and Roland's famous chorus, while the anti-feedback function automatically controls problematic acoustic feedback, allowing you to play and sing with no worries.

Ultra-compact and weighing under 12 pounds (5.3 kg), the AC-40 is a breeze to carry wherever you want to play. Though small in size, it has a big sound that easily carries your performance in venues such as intimate nightclubs, restaurants, and coffee houses. Thanks to the integrated tilt-back stand, it's simple to angle the amp for more projection when placed on the floor or another flat surface. The AC-40 is also ideal as a personal monitor when performing on larger stages.

Lightweight, rugged, and performance-ready, the AC-40 is the perfect solution for acoustic musicians on the move.


• Powerful and lightweight stereo amplifier with natural acoustic tone
• Dual custom-designed 6.5-inch speakers deliver impressive sound levels with superior projection
• Stereo chorus and reverb effects for rich, spacious sound
• Dual channels: GUITAR (1/4-inch input) and MIC/LINE (XLR/TRS input), each with three-band EQ and independent effects controls
• AUX IN with level control for connecting music players
• Mono/stereo LINE OUT for interfacing with house sound systems and recording devices
• Automatic anti-feedback function


Rated Power Output: 35 W (17.5 W + 17.5 W)
Nominal Input Level (1 kHz)
MIC/LINE CHANNEL: -50 dBu/-20 dBu
AUX IN: -10 dBu
Nominal Output Level (1 kHz)
LINE OUT: -10 dBuSpeakers16 cm (6.5 inches) x 2
Indicator: POWER

GUITAR CHANNEL INPUT jack: 1/4" phone type
MIC/LINE CHANNEL INPUT jack: XLR type, 1/4" TRS phone type
AUX IN jack: Stereo miniature phone type
LINE OUT (L/MONO, R) jacks: 1/4" phone type
PHONES jack: Stereo miniature phone type
FOOT SW jack: 1/4" TRS phone type
DC IN jack

Power Supply: AC Adaptor
Current Draw: 480 mA
Accessories: Owner's Manual, AC Adaptor, Power Cord

Options (sold separately):
Footswitch: BOSS FS-5U,
Dual Footswitch: BOSS FS-6, BOSS FS-7
Connection Cable: PCS-31L

Size and Weight:
Width: 362 mm (14-5/16 inches)
Depth: 241 mm (9-1/2 inches)
Height: 265 mm (10-7/16 inches)
Weight: 5.3 kg (11 lbs. 11 oz.)
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