Assessments - 0, GPA: 5
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3) Heed all warnings. 4) Follow all instructions. 5) Do not use this apparatus near water. 6) Clean only with a dry cloth. 7) Do not block any ventilation openings. Install in accordance with manufacturer’s instructions. 8) Do not install near any heat sources such as radiators, heat registers, stoves or other apparatus (including amplifiers) that produce heat. 9) Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet. 10) Protect the power cord from being walked on pinched particularly at plugs, convenience receptacles, and the point where they exit from the apparatus. 11) Use only attachments/accessories specified by the manufacturer. 12) Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus. 13) Unplug this apparatus during lightning storms or when unused for long periods of time. 14) Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally or has been dropped. Contents Welcome The Basics 1 Operation 2 Power 2 Preamp 2 Inputs 2 Controls 3 Notch/Low Cut Filter 3 Control Panel Drawings 4 Signal Flow Diagram 4 Effects Loop 6 Direct Out 6 Mute Switch 6 Stereo Operation 7 Effects 7 External Speaker Jack 7 Speaker Placement 8 Tilt Mechanism 8 Tweeter Switch 8 Description of the Corus Combo 8 Care 8 Warranty And Repair 9 Specifications 10 The information in this manual is subject to change without notice. No part of this manual may be reproduced by mechanical, electronic or other means in any form without prior written permission fromAcoustic Image. The Acoustic Image logo is a registered trademark of Acoustic Image LLC. Contra, Coda R, Corus and Contra EX are trademarks ofAcoustic Image LLC. Welcome to Acoustic Image! elcome to Acoustic Image! Operation You have purchased a state-of-the-art musical instrument amplifier system, combining purity, power and portability in a package that sets a new standard in high fidelity amplification. Each of our designs is engineered to accurately reproduce the sound of acoustic and electric instruments, delivering flat frequency response across the entire musical spectrum; extended, tight, well-controlled bass; and Power complete clarity of sound reproduction. This manual provides operating information for your Acoustic Image Contra, Coda R and Corus combo amp or Contra EX extension speaker cabinet. The Basics CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER. NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL. CAUTION: T O REDUCE THE RISK OF FIRE, REPLACE FUSE WITH THE SAME TYPE 6.3A FAST BLOW FUSE AC Input 115/230 VAC 50/60 Hz 400 Watts Tweeter Switch On 0I 115V 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, a three-band EQ, 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 c...