Sound Pure's Take
Condition: Used, Good
The Corus has been a staple in the acoustic flattop and jazz archtop world for quite some time! This amp may be small in size, but certainly sounds HUGE and clear. Works wonders for flattop acoustic guitars, jazz archtop guitars, and even keyboards!
Between the EQ, 2 channels, and built-in effects, you have a wide palette of tone to shape. Even without shaping the EQ, you get the most natural sound possible. If you have a quality guitar, you'll hear what we are talking about!
Call SoundPure today to talk to a professional guitarist about what Acoustic Image amp best suits your needs. We are passionate about this line and we are the closest dealer to where they are made. (next town over, in fact!)
From Acoustic Image Amps
Welcome to Acoustic Image!
Our combo amps all use the same superb class-D 400-watt (4 ohms) power amplifier, the same compact three-way speaker system (also used in the Contra EX, but the speaker configuration of the Corus is slightly different) and the same sophisticated, sensitive preamplifier. The features of the preamp and the speaker configuration define the specific combo model. The power amp is a high-efficiency design that requires no external heat sinks or cooling fans and is capable of driving loads as low as 2 ohms. AC power and output speaker jacks are located on the rear of the enclosure. A standard, three-prong detachable AC power cord is used to provide power to the unit, while AC voltage selection switch allows the unit to operate at 115V/60 Hz or 230V/50 Hz. Japan models operate at 100V, 50/60 Hz only. See the rear panel of your amp to verify theAC voltage capability. The Contra combo is equipped with a one-channel preamp, the Coda R adds a second, identical channel and a six-program effects unit. The Corus combo has the same preamp as the Coda R but uses a different speaker system that gives it a somewhat different sound from the other combos. The input channels of both preamp types incorporate combo jack interfaces that allow either a high impedance instrument input (to optimize the sound of piezo-type pickups) or a mic input, an effects loop with return level control, a selectable notch/low cut filter for feedback control and reduction of low frequency boominess, a direct out capability with ground lift and pre/post EQ switch, a master level control and a mute switch. The two-channel preamp of the Coda R and Corus has a switch that allows the second channel to be disconnected from the main amp and connected to a satellite power amp to create a stereo system. All of our speaker enclosures incorporate a 10-inch downfiring woofer, a 5-inch frontfiring midrange, and a 1-inch defeatable tweeter. The Corus uses a different woofer that gives it a sound that is better for instruments like guitar. A built-in, spring-loaded tilt mechanism allows the cabinet to be tilted back to better direct sound to your listening position. The cabinet is made of an acoustically inert, high durability, injection molded polymer material which dramatically reduces the weight of the cabinet. Each unit comes with a fitted slip cover and shoulder strap. Both padded and hard shell cases are available as accessories. While our combos and speakers are designed to play loudly--and clearly--enough so that you can be heard in most gigging situations, they are not suited to playing at extreme volumes. Generating high SPLs may require an extension cabinet like the Contra EX or augmentation by a larger house system.
- Serial Number
- 0522
System (All Models)
- Frequency Response
- 30 Hz - 20 kHz (40 - 16 kHz ±3 dB), 50 Hz - 20 kHz (60 - 16 kHz ) Corus
- Max SPL
- >112 dB at 1 meter
- AC Power
- 115V/60 Hz or 230V/50 Hz, switchable
- Size
- 12” H x 15” W x 13” D
- Weight
- 20 lbs, 17 lbs (EX)
Preamp (Mic and Instrument Inputs through combo jack)
- Mic Input
- 600 ohm balanced, XLR connector
- Phantom Power
- 47 volts, on/off switch w/LED indicator
- Instrument Input
- 1 M impedance, 1/4 inch jack
- Direct Out
- +4 dB, balanced, XLR connector, ground lift, pre/post EQ selector
- Effects Loop
- Parallel type with return level control
- Bass Control
- Shelving type, ±15 dB at 60 Hz
- Mid Control
- ±15 dB at 650 Hz
- Treble Control
- Shelving type, ±25 dB at 10 kHz
- Notch Filter
- >-18 dB sweepable from 30 to 800 Hz
- Low Cut Filter
- -12 dB/octave sweepable from 30 to 800 Hz
Effects (Coda R and Corus)
- Type
- Digital with 6 presets and level control
- Program
- Presets 3 reverb (hall, room, plate), delay, ambient, chorus, flange
Power Amp (all models)
- Topology
- Class D (PWM)
- Switching
- Frequency 230 kHz
- Output Power
- >400 W, >500 W with 4 ext. cab.
- External Speaker Output
- Neutrik Speakon-type (pole 1), 4 min.
Speaker System (all models)
- Woofer
- 10 inch, downfiring
- Midrange
- 5 inch, forward firing
- Tweeter
- 1 inch forward firing with on/off switch
- Crossover
- Passive, alignment corrected
- Impedance
- 4
- Power rating
- 300W
Warranty
This item is sold without the Sound Pure 3-year warranty (used / B-stock / dealer-exempt). Coverage terms for items in this category live in Terms & Conditions, Section 27.
Returns
Try Before You Buy: take it home, commit only when it's right. Program details →
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Sound Pure Studios · Durham, NC
Come hear it in our control rooms.
Sound Pure is a working studio in Durham, NC — a 1,000 sq ft live room and two pro control rooms. Book a session to audition gear in a world-class acoustic space before you buy.