Bob Gollihur - Gollihur Music
Bob Gollihur

Gollihur Music - Upright Bass Specialists
"Double Bass Pickup and Microphone Systems, Strings, Electric and Acoustic Upright Basses, Amplifiers, Accessories, Parts, and more..."

Mark Gollihur - Gollihur Music
Mark Gollihur

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ACOUSTIC IMAGE COMBOS/SPEAKERS: What's the difference between the Contra, Coda, Corus and TEN²?
Acoustic Image makes three basic and one special combo - and three different speakers - each for different needs. Complete specifications are shown on each combo's page (links below), so we won't focus on the features they all share. We also have a complete overview of the Acoustic Image line on their manufacturer page.


COMBO AMPS

The Contra has one channel, no effects, and is the evolution of their original combo. It's a full range amp suitable for virtually any instrument, although it was originally designed for acoustic bass.

The Coda R is the same as the Contra, but adds a duplicate second channel plus digital effects (reverb, chorus, etc.) module. It's also a full range amp suitable for any instrument including bass. The Coda R is being discontinued in favor of the Coda+. It offers a higher power rating, a headphone jack, and a removable head, enabling you to use it with other speakers instead of the combo. If you don't need the ability to remove the head and/or the higher power, grab a Coda R at the new, lower price!

The Corus is identical to the Coda R, but it uses a different ten-inch woofer and reduces the attenuation of the midrange and tweeter as the woofer is more efficient (louder per watt). Due to this difference, the sound is more focused and forward. The Corus is suited for guitar, most keyboards, and other non-bass instruments; the woofer in the Corus does not "reach as low" and isn't as suitable for bass instruments, but can be used for bass. Like the Coda R, the Corus is being discontinued in favor of the Corus+. Similarly, it offers the different woofer but same power head as the Coda+. If you don't need the ability to remove the head and/or the higher power, grab a Corus at the new, lower price!

The new TEN² uses the same higher power unit as the Coda+ and Corus+ but utilizes Acoustic Image's unique compact two ten inch woofer cabinet with a single tweeter. One woofer faces down, the other faces forward. It also has the removable head feature. This produces more of the "in your face" sound of a conventional speaker cabinet combined the downward firing subwoofer design. The TEN² is the smallest 2x10 cabinet on the market.


Bass or Cello Player? Get the Contra, Coda R; or if you prefer a more forward sound, choose the new TEN². If your needs are for non-bass instruments, or those that do not go far below 100 hz., the Corus or TEN² are probably the best choice; its "more forward" sound works very well for guitar, cello, mandolin, fiddle/violin, and many other acoustic instruments. The Corus has also proved to be the favorite of keyboard players who have tried both speaker versions. If you plan to play bass and guitar (or other higher-pitched instruments), I'd recommend the Contra, Coda R, or TEN²; you'll need the low end for the bass instruments, but the higher pitched instruments still sound great through the "regular" models!

SPEAKERS

The Contra EX is identical to the speaker section of the Contra, Coda R, and Coda+ combo amps.

The Corus EX is identical to the speaker section of the Corus combo amp. Any of the two models are ideal for use as an extension speaker to any of the combos, or as a standalone speaker used with another amplifier head. The TEN² EX is a more forward sounding full range cabinet.

The new TEN² EX has two ten inch drivers, one facing down, one facing forward, along with a tweeter for high frequencies. The tweeter and crossover used in the TEN² EX differs from the other EX cabinets, so the tweeter covers more of the middle frequencies. The forward facing driver produces more of the "in your face" sound of a conventional speaker cabinet and combines it with Acoustic Image's downward firing subwoofer design. The TEN² is the smallest 2x10 cabinet on the market.

Details of each amp and speaker are on the individual product pages (click here to go to a listing of all Acoustic Image products as well as a matrix view of their differences), but if you have any questions or need to explore their features further, please feel free to contact us.

The Fine Print: The information contained herein is based on what's in my brain and/or my opinions as of today and is subject to change. Like any topic, a great deal more information could be added—but the intent of these writings is to present easy to understand, quick FAQs, to address common questions and improve the reader's general knowledge. What's written here is by no means the authoritative absolute answer, I am not the world's greatest authority on bass (not even close), or on anything else for that matter. I hope the information and opinions here are helpful to you, that's the point!

I welcome email with dissenting and additional viewpoints that help improve my personal awareness and the content pages. If you have a question that you think belongs here, please let me know.
Bob
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