Roland AC-40 - 40-watt 2x6.5" Acoustic Amp

Stereo Acoustic Guitar Amplifier with Reverb, Chorus, and Built-in Anti-Feedback Technology
Roland AC-40 - 40-watt 2x6.5
Roland AC-40 - 40-watt 2x6.5
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Roland AC-40 - 40-watt 2x6.5" Acoustic Amp
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Rich, Natural Acoustic Tone!

Expect rich, clear acoustic amplification from the Roland AC-40 acoustic guitar amplifier. Just plug in your guitar and a vocal microphone, and you're ready to perform. The AC-40 packs a pair of 6.5" speakers with impressive projection, plus onboard stereo chorus and reverb for a polished amplified sound. You also have a 3-band EQ on each of the two channels for fine-tuning your tone. Best of all, built-in feedback protection keeps your acoustic-electric guitar from howling when you're close to the amp. For a versatile acoustic amp that sounds sweet, you can rely on the Roland AC-40.

Roland AC-40 Acoustic Chorus Guitar Amplifier at a Glance:
  • Big sound in a compact package
  • Convenient mic and instrument inputs
Big sound in a compact package

Talk about impressive. The AC-40 is a marvel in amplifier design, using the DSP technology to deliver a pure, rich acoustic sound with projection far beyond its compact size. This stereo acoustic amp offers brilliant stereo chorus effect plus shimmering reverb on each channel. It sounds fantastic on its own, but there's also a line output to connect to a larger sound system if you need it.

Convenient mic and instrument inputs

The dual-channel AC-40 offers both a Guitar channel and a Mic/Line channel. This makes it the perfect companion for coffeehouses and small club gigs. The Guitar channel gives you a choice between piezo and magnetic pickup inputs, plus powerful anti-feedback controls. A Mute switch lets you tune silently, and there's an input for an optional footswitch to turn the reverb and chorus effects on/off.

Roland AC-40 Acoustic Chorus Guitar Amplifier Features:
  • Compact 40W stereo acoustic amplifier with pure, natural tone and excellent projection
  • 2-channel design: Guitar input and Mic/Line input
  • Stereo 6.5-inch speaker configuration is loud enough for coffeehouses and small club gigs
  • Onboard DSP delivers lush stereo chorus and reverb effects, with footswitch control
  • Built-in auto anti-feedback controls allow for maximum volume without feedback
  • Convenient Mute switch for silent tuning onstage
  • Stereo Line Out for PA and recording applications
The Roland AC-40 acoustic chorus amp is just what your acoustic guitar needs!

Additional Media

Acoustic Guitar Amp Buying Guide
Guitar Amp Buying Guide

Tech Specs

Number of Channels 2
Total Power 35W
Speakers 2 x 6.5"
Stereo Yes
Inputs 1 x 1/4", 1 x XLR-1/4" combo, 1 x 1/8" (aux in)
Outputs 2 x 1/4"
Effects Reverb, Chorus
EQ 3-band
Feedback Control Yes
Footswitch I/O Yes
Height 10.4"
Width 14.3"
Depth 9.5"
Weight 11.68 lbs.
Manufacturer Part Number AC-40

Customer Reviews

Based on 5 reviews
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Sparkle in stereo

This TINY little amp has incredibly clean sound. The reverb and chorus are fantastic. This amp was compared side by side with a Fishman Loud box mini. Although both amps are sonically superior, and have slight tonal differences, the reverb and chorus on this little guy really sparkle. This was the selling point for me. Incredible extremely light and portable gem of an amp.
Music background: Semi Pro

Nice amp

Small amp lightweight but sound clean and big!
Music background: Massachusetts

AC-40 - Nice!

Just what I was looking for. Small and light, independent effects for each of the 2 channels. Good sound and volume for practice amp. It looks good too. Considered the AC-33 but didn't need the battery power, whereas the AC-40 had a bit larger speakers and fully independent effects for the 2 channels. The size and weight of both were similar, but the price of the AC-40 was slightly less. Agree with another reviewer that the strap handle could be a little bigger. Haven't used it with headphones yet.
Music background: Hobbyist

Very nice small acoustic amp

This amp is very good for its size. It has plenty of power for a small gig and can be connected to a PA for larger shows. It has a pleasant sound and adds reverb and chorus for effects. Its light and easy to transport and set up , basically plug and play. A very good buy , I'm loving it.
Music background: Guitarist , musician for over 50 yrs

Nice on speakers, not on headphones

Don't buy this if you're going to use it as a practice amp through headphones. The mic volume isn't very high or very good.
Music background: Hobbyist
See also: Acoustic Guitar Amplifiers, Roland, Roland Acoustic Guitar Amps