AMPLIFIER v12 OPERATION MANUAL T E C H N O L O G I E S I N C .
SAFETY PRECAUTIONS 1 CAUTION WARNING ! CAUTION: TO PREVENT ELECTRIC SHOCK, DO NOT REMOVE COVER. NO USER SERVICEABLE PARTS INSIDE, REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. THIS SYMBOL IS TO ALERT YOU OF THE PRESENCE OF UNINSULATED DANGEROUS VOLTAGE WITHIN THE UNIT'S ENCLOSURE THAT MAY BE OF SUFFICIENT MAGNITUDE TO CONSTITUTE A RISK OF ELECTRIC SHOCK. ! THIS SYMBOL IS INTENDED TO ALERT YOU OF THE PRESENCE OF IMPORTANT OPERATING AND MAINTENANCE INSTRUCTIONS IN THE LITERATURE ACCOMPANYING THE UNIT.
INTRODUCTION 2 This amplifier is a precision device, designed in an effort to provide the listener with unmatched sound quality, design, and construction. In order to operate your amplifier properly and to realize all of the capabilites of the AMPLIFIER v12, we recommend that you read this entire manual carefully.
INSTALLATION CONNECTIONS 3 The first section of the installation instructions for the AMPLIFIER v12 is a diagram of the default four channel configuration required to bring this amplifier into an operating mode. These brief steps will allow you to begin operating your system. Make sure during installation that the main AC power switch on the back of the AMPLIFIER v12 is turned off.
DETAILED INSTALLATION 4 I. Source-Output, Power Connections and Controls The connectors and controls are clearly marked on the back panel of the AMPLIFIER v10. Note the correct channel orientation. The function and channel markings on the rear panel correspond to the front panel controls and their signal paths. 1. The MODE switch selects between unbridged or bridged operation. The default position is UNBRIDGED. For information on bridging see BRIDGE SETUP. 2.
DETAILED INSTALLATION 5 II. Front Panel Control Functions and Indicators 1. The BIAS button turns on the bias and opens shunting relays that mute the input. 2. The INPUT SELECTOR button switches between the balanced and unbalanced inputs. 3. These LEDs when lit, indicate that the bias is activated in the AMPLIFIER v12. 4. This two color LED indicates that the main power is on. When it is green the balanced inputs are in use. When it is yellow the unbalanced inputs are in use.
DETAILED INSTALLATION 6 III. Remote Control The AMPLIFIER V12 may be operated by remote control. To operate, set the SL-9000 remote to [AUD]. The optional universal remote can be used to control other Coda products as well as many other audio and video components. For instructions on the remotes other capabilities, refer to the Universal Remote Control Manual. 1. The [POWER] button turns on the bias and opens shunting relays that mute the input. 2.
DETAILED INSTALLATION 7 III. BRIDGED SETUP WARNING: DO NOT OPERATE THIS AMPLIFIER WITH THE TOP COVER REMOVED. NEVER MAKE ANY INTERNAL ADJUSTMENTS WHILE THIS AMPLIFIER IS CONNECTED TO AN AC POWER SOURCE. BRIDGED operation consists of one, or both sets of AMPLIFIER v10 channels. The amount of power from a four channel AMPLIFIER v10 is 100 Watts with 8 Watts class A per channel. A bridged AMPLIFIER v10 has 400 Watts with 8 Watts class A per set of channels.
DETAILED INSTALLATION 8 BRIDGED set up diagram Before setting up the BRIDGED AMPLIFIER v12, read the entire DETAILED INSTALLATION section of this manual. As stated on the previous page, either the left set or right set, or both sets of channels may be bridged.
DESIGN PHILOSOPHY 9 I. Design Philosophy and Approach The subtlety of the design process at this level of performance makes it impossible to easily explain all of the advantages inherent in the Amplifier v12. However, we present here an overview to give you an understanding of some of its unique features and an idea of the listening experience you can expect. Often a particular technique has numerous unrelated advantages and possibilities.
DESIGN PHILOSOPHY 10 To maintain “Precision Bias” requires an advanced bias circuit that must have a very high degree of stability under a wide range of temperatures and load conditions. The usual bias network is of such high impedance and poor thermal regulation that at the extremes of operation, bias currents are ineffectively controlled. Advanced tracking techniques results in absolute control of bias curents under all conditions in the Amplifier v12.
DESIGN PHILOSOPHY 11 II. Parts' Quality 1. Finishes - All exterior metal parts are anodized or powder coated. Anodizing for its multiple finishing and powder coating for durability. 2. Circuit Boards - Circuit boards are fiberglass epoxy with gold plating over a tin/nickel barrier. This gold layer will not corrode, while the barrier plate prevents the gold from migrating to the lower copper layer and detracting from its appearance. 3.
TECHNICAL DATA 12 AMPLIFIER v12 Rated Power: Frequency Response: Distortion: Gain: Maximum Current: Noise: input Impedance: Output Impedance: 120 Watts with 25 Watts class A @ 8 Ohms both channels driven from 20Hz to 20kHz DC to -3dB @ 100kHz < .1 percent from 10Hz to 20kHz @ 100 Watts both channels driven into 2 Ohm through 8 Ohms 26dB >60 Amperes peak per channel -100dB referenced to rated output 50k Ohms unbalanced/1k Ohms balanced .
CARE AND HANDLING 13 The interior of the amplifier requires no special care. If exterior cleaning beyond simple dusting is required, any dilute ammonia-based product is recommended. Do not use any abrasive rags, cleaners or chemical solvents on the amplifier. When handling the amplifier, take care not to mar the faceplate. Aluminum is a medium hardness metal and can be scratched by harder tool steels, and the surface can be easily marred if the amplifier is set face-down on a hard surface.
WARRANTY & DISCLAIMER 14 i. Warranty - Any failure of the Amplifier V12, hereafter known as the product or original product, to operate or to meet specifications, applicable at time of manufacture, due to a manufacturing defect or component failure, will be corrected by Coda Technologies without charge for parts or labor, for a period of ten years from date of original purchase.
WARRANTY REGISTRATION 15 Fill in this registration sheet and fax or mail it to Coda Technologies to ensure you are in our warranty system. This will facilitate warranty service should it become necessary. It is recommended that you retain a copy of this form for your own records. Coda Technologies’ address and fax number are located on the back of this manual.
7850 CUCAMONGA AVENUE #34 SACRAMENTO, CA 95826 USA T E C H N O L O G I E S I N C . phone +01 916.383.3653 fax +01 916.455.3653 on the web at CODA.CC email us at info@coda.
