News Release

Corus combines power, transparency

ACOUSTIC IMAGE LAUNCHES FIRST SPECIALIZED GUITAR COMBO AMP.

September 18, 2006--Acoustic Image today announced the launch of Corus, the first AI combo
optimized for guitar players, producing 400 watts of legendary high-fidelity sound from a rocksolid
20-lb package.

Corus combines a full featured dual-channel Clarus head, long a favorite of guitarists, with a
cylindrical grey-grilled injection-molded cabinet incorporating a special crossover and newlydesigned
speaker array (10-inch downfiring woofer, frontfiring 5-inch midrange and 1-inch
tweeter) designed to strike a critical balance between bass extension and projected volume.

“Corus doesn’t alter our characteristically flat, transparent sound, but it does respond to requests
from guitar players for an AI combo with a more upfront sonic signature,” said Rick Jones,
Acoustic Image Founder and Chief Designer. “With the downfiring woofer, sound is still heard all over the bandstand, but with the Corus’ new crossover and drivers, the guitar also cuts through the mix out front.”

“By itself, we believe Corus is unsurpassed in reproducing the sound of amplified guitar,
from a whisper to a roar,” he added. “Coupled with one of our extension cabinets, it generates a
huge soundstage with almost holographic transparency. We also believe the Corus will appeal to
violin and other string players—and some keyboardists—who are looking for a more forward
sound. Others will continue to prefer our Contra or Coda combos.”

Features on the amplifier section include: three-band EQ, mute switch, dual-purpose quarterinch/
XLR inputs (both with notch/high pass filter), reverb plus other effects (chorus, flange,
delay), pre and post EQ on the Direct Out, and stereo capability (with a slave amp). Corus also
includes integrated handles, an internal speaker connection, a spring-loaded tilt mechanism, and
a high-quality cover with power cord storage compartment.

Corus is covered by AI’s unmatched fully transferable warranty which effectively provides
lifetime coverage.

FAQs

What is Corus? What’s different about it?
Corus is, essentially, a Series III Coda 2 combo with a different crossover and woofer selected to trade off bass extension below 60 Hz for greater volume and mid-range projection. The fundamental AI sound is unchanged, but Corus is optimized to achieve a sound many guitar players like — and have achieved until now by marrying a Clarus or Focus to a non-AI speaker cabinet. With Corus, these same players have the sound they want, the on-the-gig convenience of a combo, and the ability to be heard more forcefully out-front as well as all over the bandstand.

What has been the reaction from players who have tried Corus?
Corus has been received very positively by prominent guitarists who have tested prototypes. We are just now getting combos into the hands of top players who have requested one. To cite one, well known guitar maker John Buscarino already has his and loves it and is recommending it to all of his customers.

Aren’t Contra and Coda a good fit with guitar? What about Clarus and Focus?
Contra and Coda are true full-range combos and we have many customers who love their sound with guitar. Also, we anticipate that many guitarists will continue to purchase our heads for use with other cabs. In both cases, it’s a matter of individual taste. However, we think Corus will be the best overall solution — in sound and portability — for most guitar players.

If Corus is louder, is there a need for an extension cab?
At 400W into 4 ohms, Corus will play surprisingly loud without distortion and is more than adequate for the vast majority of rooms. And, of course, it offers a direct out to tie into the PA for large venues. But there are times when truly big volume is needed from the amp, in which case, the Corus EX increases both power and coverage dramatically.

Guitarists have also reported that addition of an extension cab takes the Corus sound from transparent to truly holographic (it has to be heard to be believed). In addition, guitarist/vocalists who also use the Corus as a PA may want an extension cab for mid-size venues.

Is Corus designed to work with other instruments?
Yes, while we are calling Corus a guitar amp, it is ideally suited to violin, viola and other strings, as well as wind instruments. Cello and piano are a judgment call. Many will prefer Corus. Others looking for a slightly more laid back presentation and greater low bass response will make Contra or Coda the combo of choice.