Acoustic Image Corus+ 2ch Combo Amp-Series III SPECIAL, from Acoustic Image

This model has been discontinued for the release of the new S4 amplifiers. Take advantage of a sweet discount on this incredible amp! If you are looking for a perfectly natural reproduction of your acoustic or archtop guitar, then look no further. The down-firing 10" speaker in conjunction with the forward-firing 5" driver and tweeter create an amazingly natural sound. This amp is a bit more of a "forward" voicing than the Coda +. This tends to be the choice for guitarists that want a little more presence and don't need the extra bass response of the Coda. The transparency of this combo really reproduces what you plug into it with stunning accuracy. This amp is great for acoustic guitar, archtop guitar, keyboards, vocals, violin, and viola too. And did we say "portable"? This is the lightest 800W combo amplifier you will ever carry! The removable head is a great feature with this new model. The ability to use the head with other cabinets is great when the gig requires a bit more presence.

A Coda+ with more forward sound
and slightly reduced bass response.
Great for guitar, keyboards and more.

• Different crossover, woofer deliver more forward sound, slightly less bass response than Coda+. Otherwise, offers the same features.
• Designed for guitar, keyboards and other higher-voiced instruments but preferred by some bassists (See FAQs below)
• Three-way sealed speaker system
• 10” downfiring woofer
• 5” midrange driver
• 1” tweeter (with on/off switch)
• Lightweight (20 lbs) molded polymer enclosure
• Cabrio Docking System(tm) means head is removable for use as a stand-alone unit
• Three-band EQ preamp section per channel
• Combo jack inputs (either 1/4 in or XLR)
• Phantom power on XLR inputs
• Input and master level controls
• Effects loop with return level control per channel
• Digital effects with 6 presets and level control
• Switchable Notch/Low Cut filter per channel
• Balanced direct out with ground lift
• Mute switch and Pre/Post EQ for direct out
• Stereo capable with external power amp
• Headphone output
• 800 watt switch mode power amplifier
• Switchable dual voltage operation (115/230V)
• Comes with a fitted slip cover with cord storage pocket and shoulder strap

Technical Specs

Design Goals

Corus+ was designed to meet the demands of guitaristists, keyboard players and other instrumentalists who wanted AI sound, but with a somewhat more ”forward” character. To achieve this, a different crossover and woofer were used (compared to a Coda+) to trade off bass extension below 60 Hz for greater volume and mid-range projection. As a result, Corus+ allows players who are prepared to trade off some bass extension to enjoy the many benefits of a downfiring woofer (more natural sound, a broader soundstage, etc.) while being heard more forcefully out front.

While most guitarists, keyboardists, violinists, etc. select Corus+, some continue to prefer Coda+ for its more laid back presentation and deeper bass presence. In addition, some cellists and bassists choose Corus+ over Coda+ because the sound happens to better suit their ear. With all Acoustic Image amplifiers delivering a broad frequency range of high fidelity sound, product selection is a matter of personal preference.

At 800W into 4 ohms, Corus will play surprisingly loud without distortion and is more than adequate for the vast majority of rooms. In addition, it offers a direct out to tie into the PA for large venues. But when truly big volume is needed from the amp, addition of a Corus EX extension speaker increases both power and coverage dramatically. Plus, the head is removable so that it can be used with a larger speaker system to get even more volume when required.