Acoustic Image + Models - Manual (Page 7)

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So, what’s the difference between the Corus+ and the Coda+? The preamp and
power amp of the Corus+ are the same as those used in the Coda+. The Corus+
uses a different woofer than the Coda+. It is more efficient and has slightly less bass
response. When coupled with the other speakers in the three-way system and after
the crossover is adjusted for the higher efficiency of the woofer, the result is still a flat
response like the Contra and Coda+ but the low frequency 3 dB point is higher (60 Hz
versus 40 Hz) and the overall efficiency of the system is higher (94 dB versus 90 dB).
Thus the Corus+ is more optimized for non bass instruments than the other combos.
In particular, guitar, keyboard and violin players will like the sound of the Corus+. The
higher efficiency gives it a more “forward” sound that these instrumentalists prefer.
The slightly higher low frequency cut off is not noticeable with guitar and other
instruments.
The Corus EX has the same speaker components and the Corus+ combo and the
perfect match to the combo when additional volume is needed.
The Corus+ combo and Corus EX have a gray front panel and a gray front grill so
they look a little different and can be easily distinguished from the other combos.
Acoustic Image combos and cabinets are made from injection molded polymer
materials. A little care will keep yours looking new for years to come. Use a clean,
dry cloth to clean the cabinet and metal parts of the amplifier.
We stand behind our products with a full warranty of five years from the date of
purchase. Should a problem arise, please call us before returning your amplifier or
enclosure. Naturally, our warranty does not cover products that have been damaged
through misuse. Be sure to check our web site regularly, we have an FAQ section
and we post helpful information for getting the most out of your Acoustic Image
product.
Description of the Corus+ Combo
Care
Warranty Information
Serial Number _______________
Acoustic Image Phone: 919-785-1280
5820 Triangle Drive Fax: 919-785-1281
Raleigh, NC 27617 www.acousticimg.com
Warranty and Repair
System (all models)
Preamp (Mic and Instrument Inputs through combo jack)
Effects (Coda+ and Corus+)
Power Amp (all models)
Speaker System (all models)
Supplied Accessories
Available Accessories
Frequency Response 30 Hz - 18 kHz (40 - 14 kHz ±3 dB)
50 Hz -
kHz (60 - 1 kHz ) Corus+
Max SPL >112 dB at 1 meter, >115 dB/m Corus+
AC Power 115V/60 Hz or 230V/50 Hz, switchable,
Japan version is 100V, 50/60 Hz only
Size 12” H x 15” W x 13” D
Weight 20 lbs, 17 lbs (EX)
Mic Input 600 ohm balanced, XLR connector,
switchable 10 dB pad (Coda+, Corus+)
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, ±15 dB at 10 kHz
Notch Filter (Contra) >-18 dB sweepable from 30 to 400 Hz
Low Cut Filter (all models) -12 dB/octave sweepable from 30 to 400 Hz
Phase Reverse Switchable 180 degree phase reverse
Type Digital with 6 presets and level control
Program Presets 3 reverb (hall, room, plate), delay, ambient
chorus, flange
Topology Class D (PWM)
Switching Frequency 250 kHz
Output Power Contra: >250W at 8 , >400 W at 4 ,
>500 W at 2
Others: >450W at 8 , >800W at
,
>1000W at 2
External Speaker Output Neutrik Speakon type (pole 1), 2 min
load including internal speakers, if connected
Woofer 10 inch, downfiring
Midrange 5 inch, forward firing
Crossover Passive, alignment corrected
Impedance
Power rating
300W
Fitted slip cover with cord storage pocket
and shoulder strap
Padded gig bag with shoulder strap made by
Mooradian, kit to convert cabinet with head
removed to an extension cab
cabinet (adapter, filler panel, padded case
18 4 ±3 dB
4
8
W
W
W
W W
W W
W
W
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Specifications