Coda CONTINUUM CP User manual

CARE & HANDLING
WARRANTY REGISTRATION
WARRANTY & DISCLAIMER
OPERATION MANUAL
Preamplifier CP
3
6
8
7
5
INITIAL SETUP
INSTALLATION & USE
LOADING SETUP
9
TECHNICAL DATA
2
INTRODUCTION
10
1
SAFETY PRECAUTIONS
CONTINUUM CP
VOLUME/BALANCE dB LEVEL

!
CAUTION
CAUTION
WARNING
WARNING
1
SAFETY PRECAUTIONS
CAUTION -
-
-
-
-
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.
WARNING: TO PREVENT FIRE OR SHOCK HAZARD, DO
NOT EXPOSE THIS UNIT TO RAIN OR
MOISTURE. TO AVOID ELECTRICAL SHOCK, DO
NOT OPEN THE UNIT. REFER SERVICING TO
QUALIFIED PERSONNEL.
Never install or remove the power cord from the chassis
unless it has been disconnected from the AC power source
first.
Never pull on the power cord when removing it from an AC
power source. Grasp it by the plug.
Do not leave the power cord connected to an AC power
source unless it is connected to the unit.
It is recommend that during extended periods of non-use
that the units power cord be unplugged from its AC power
source.
Route the AC power cord so that it will not be damaged or
walked on.
!

2
INTRODUCTION
This preamplifier is a precision device, designed in an effort to provide the listener with
unmatched sound quality through superb design and construction.
Thank you for purchasing the PRE AMPLIFIER CP.
Although its operation is fairly simple, in order to operate your preamplifier properly and to
realize all of the capabilities of the CP we recommend that you read this entire manual
carefully.

3
INITIAL SETUP
The diagram below illustrates the rear connections of the CP.
Note: Many amplifiers produce a local magnetic field that can be picked up by the sensitive
circuitry of a preamplifier. Try to provide at least a foot of space between your amplifier and
your CP preamplifier.
B: Signal output is through two balanced XLR connectors and four unbalanced RCA
connectors. The XLR pinout is identical to the input receptacles.
A: The AC receptacle accepts any standard three-prong IEC line cord. Power input can be
adjusted for any country, but is set internally at the factory. Contact Coda or your local Coda
dealer if the voltage must be changed. Fuse specifications are listed below the receptacle,
and the fuse can be changed by unplugging the line cord, pulling out the fuse drawer and
clipping in a new fuse.
C: The Processor loop connectors permit the connection of an external audio device such as
a surround sound processor or equalizer. Connect the output jacks to the input of the
processor, and the output of the processor to the processor input jacks of the preamplifier.
D: Signal input is through two balanced XLR connectors and eight unbalanced RCA
connectors. The XLR receptacle has ground on pin 1, positive on pin 2 and negative on pin 3.

4
INITIAL SETUP
The diagram below illustrates the front panel controls of the CP.
Note: Many amplifiers produce a local magnetic field that can be picked up by the sensitive
circuitry of a preamplifier. Try to provide at least a foot of space between your amplifier and
your CP preamplifier.
B: The digit display shows the currently selected volume setting. The lights underneath the
digit indicate which value is selected. The readout is in dB of attenuation, therefore a higher
number indicates a lower output level. If the output is muted the display will flash repeatedly.
D: The mono input mode combines both input channels into a single monaural signal and
outputs the combined signal on both output channels.
E: The four input selectors choose the current active audio input. Individual gain can be set
for each input. Press and hold the button for the appropriate input. The display will switch to
the gain setting for that input, 00 by default. Rotate the volume knob to select up to 18 dB of
additional gain, then press the input button again to store the value.
A: The rotary controller adjusts the currently selected volume level. Press the knob to switch
between the volume setting for left, right or both channels, indicated by the lights underneath
the digit display.
C: The processor input mode passes the current audio input through an external processor
unit before it is output. See the previous page for instructions on connecting a processor
device.
CONTINUUM CP
VOLUME/BALANCE dB LEVEL

REMOTE OPERATION
The CP can be operated by remote control. The MX-450 Learning Remote is
included with the amplifier. For instructions on using the MX-450 itself see the
on screen manual included in the remote.
5
INSTALLATION & USE

6
LOADING SETUP
The two slide switches to either side of the DIP block add 20 dB of gain to each channel. By
default they are disabled.
The CPs phono input stage has adjustable loading parameters. The loading switches are a
red DIP switch block located on the printed circuit board inside the preamplifier near the
balanced input jacks.
To open the CP, use a hex wrench to remove the bolts retaining the top cover. Check the size
of your wrench before beginning. An undersized wrench will strip the heads of the fasteners.
Be sure to set the cover top-side up when removed to avoid scratching the finish.
The DIP block adjusts both loading capacitance and resistance. The switches are set in
stereo pairs, e.g. 1 & 8 to add 1000 PF to both channels, 2 & 7 to add 200 PF, etc. The
components are switched in parallel with the built-in values of 47k Ohms and 50pF. The final
capacitance is the sum of 20pF and the two capacitor settings. The final resistance is as
follows:
1/Rtotal = (1/47000)+(1/R1)+(1/R2)
Caution: The CP contains dangerous high voltages during operation, and except for the
loading settings has no user serviceable parts inside. Except when adjusting the loading
you should never open the preamplifier. Before opening the CP ensure that the AC line cord
is completely disconnected.
If you have any questions about adjusting the CP you should contact Coda Technologies at
the address and phone number on the rear of this manual.

7
TECHNICAL DATA
PREAMPLIFIFER
Frequency Response: 5Hz to -3dB at 200kHz
Maximum Output: 10V peak
Noise: Less than 100dBA referenced to 1V
Distortion: <.02 from 10Hz to 40kHz, 6V peak into 600 Ohms or higher,
shunted by 1000pF or less
Input Impedance: 20k Ohms unbalanced
Gain: 12dB, variable to 30dB
20k Ohms balanced
Output Impedance: 50 Ohms non-reactive unbalanced
Width: 17.0" Faceplate, 17.0" Overall
DIMENSIONS
Gain: 40dB at 1kHz, 60db with extra gain switch
PHONO STAGE
100 Ohms non-reactive balanced
Power requirement: 20 Watts
Crosstalk: 90db at 20kHz
Height: 2.65" Faceplate, 3.0" Overall
Depth: 12.0" Overall
Weight: 15 lbs.

8
CARE & HANDLING
Avoid exposing the unit to direct sunlight, and keep it away from sources of intense heat.
The interior of the unit requires no special care. If it becomes necessary to clean the exterior,
a simple dusting may be all that is required. If a cleaner is necessary, any dilute commercial
ammonia based product will be appropriate. NEVER use any abrasive rags, cleaners or
chemical solvents on Coda products.
Do not throw away the carton or associated packing material. They are ideal if you need to
pack the unit for moving and in the unlikely event that servicing is needed, they will be
necessary for safe shipment.
Be sure to provide adequate insurance when shipping.
When handling the unit, take care not to mar the aluminum. Aluminum is a medium hardness
metal and can be scratched by the harder tool steels.

9
WARRANTY & DISCLAIMER
II. Procedure - If the product should require service under warranty contact Coda
Technologies at the location on the back cover of this manual for shipping instructions.
Products purchased outside of the United States will be covered by the warranty conditions
extended by the importing distributor which may differ from those given above.
iii. serial number defacement
In these conditions any service will be made at Coda Technologies sole option.
IV. Total Loss and Replacement - If the product is submitted for service due to a severe
malfunction which has caused damage sufficient enough to make a repair attempt infeasible,
the product will be replaced with another unit of equal or superior specifications. Coda
Technologies product line is frequently updated and changed, and the specific model and
version of the original product may be discontinued at any time without notice. In this case no
guarantees are made that the replacement unit will be visually similar to the original product.
i. operation not in accordance with the instructions in this manual
III. Exclusion of Coverage - Coda Technologies is not obligated to service the product in
certain conditions, as according to the following subsections.
b. The product has been transferred to a third party. This warranty is valid only for
the original purchaser of the product.
I. Warranty - Any failure of the Coda product, 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. Coda
Technologies will provide for surface transportation to and from the factory for a period of one
year from date of original purchase.
a. The product has been damaged through:
ii. abuse, tampering, modification or accident
c. The product has been transported outside of the United States of America.
V. Subjective Differences - No guarantee is made that the product will perform to any
specifications that cannot be measured and confirmed with precision audio analysis
equipment. Coda Technologies is only obligated to make repairs which will bring the product
into compliance with the specifications stated in this manual.
This warranty gives you specific legal rights. You may have other rights which vary from state
to state.
VI. Unnecessary Service - In all conditions, if the product is submitted for service and found
to be operated without fault and within specifications, shipping charges will be billed to the
customer.
b. Damage caused by connecting a load to a Coda Technologies product having
an improper impedance as described in the products manual.
c. Damage caused by defects in design, construction or component quality.
Disclaimer - Coda Technologies cannot be held responsible for any damage caused by their
products, including but not limited to:
a. Damage to speakers caused by failure of a Coda Technologies product to mute
or disable itself as expected or described in its manual.

10
WARRANTY REGISTRATION
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.
MODEL DESIGNATION:
SERIAL NUMBER:
DATE OF PURCHASE:
City: State: Zip:
Phone:
Name:
PLACE OF PURCHASE
City: State: Zip:
Address:
NOTES:
Address:
Name:
Phone:
OWNER INFORMATION

7850 CUCAMONGA AVENUE #34
SACRAMENTO, CA 95826 USA
on the web at CODA.CC
email us at [email protected]
phone fax [phone] +01 916.455.3653