CANARY AUDIO CA-300 User manual

CANARY AUDIO®
300B Single-Ended Mono Block
Power Amplifier
Handcrafted in California
CA-300
OWNER’S MANUAL
MADE IN USA

Dear Customer:
Please allow us to take this opportunity to thank you for purchasing this CANARY
AUDIO product.
We strongly recommend that you carefully study the Safety Instructions before
attempting to operate the unit.
After you have finished reading the instructions, please save this manual for
future reference.
WARNING:
TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE
THE UNIT TO RAIN OR MOISTURE.
CAUTION:
TO PREVENT ELECTRIC SHOCK, DO NOT USE THIS POLARIZED AC PLUG
WITH AN EXTERSION CORD, RECEPTACLE OR OTHER OUTLET UNLESS
THE BLADES CAN BE FULLY INSERTED TO PREVENT BLADE EXPOSURE.
TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT REMOVE
COVER (OR BACK). NO USER SERVICEABLE PARTS INSIDE. REFER
SERVICING TO QUALIFIED SERVICE PERSONNEL ONLY.
The lightning flash with arrowhead symbol is intended
to alert the user of the presence of uninsulated
“dangerous voltage” within the product’s enclosure
that may be of sufficient magnitude to constitute a risk
of electric shock to persons
This symbol is intended to alert the user to the
presence of important operating and maintenance
(servicing) instructions in the literature accompanying
the unit.

SAFETY INSTRUCTIONS
Power Source:
•The unit should be connected to an AC power source of the proper rated
voltage.
•Never replace the power supply’s line fuse with the one of incorrect
characteristics.
AC Cord Protection:
•Do not defeat the grounding or polarization feature of the AC cord.
•Make sure that the AC receptacle holds the AC cord plug firmly and securely.
•Keep the AC cord away from heating appliances.
•Never put heavy object on the AC cord.
•If smoke, malodors or noises are emitted from the unit, turn the power off and
disconnect the AC cord.
Placement:
•Do not place the unit near a heating device or in a location where it is
exposed to direct sunlight.
•Do not place the unit in an excessively humid or dusty location.
•Avoid placing the unit in the areas of vibration, impact or where the surface is
tilted as the internal parts may be seriously damaged.
•Avoid placing the unit next to kitchen counters or other locations where it is
subjected to oily fumes.
Keep Away from Water and Moisture:
•This unit should not be used near water.
•Keep the unit away from flower vases, bathtubs, washbowls, kitchen sinks,
laundry tubs, swimming pools, etc. If liquids are spilled into the unit, serious
damage could occur.
Ventilation:
•Slots and openings in the chassis and in the back or bottom are provided for
necessary ventilation.
•Do not place a cloth on top of the unit or block the provided ventilation slots
and openings in any other way.
•Do not place the unit on a bed, sofa, rug or other similar surface which may
block the slots and openings.
•Do not place the unit in a confined space, such as a bookcase or built-in
cabinet, unless proper ventilation is provided.
Non-Use Periods:
•When left unused for a long period of time, the unit should be unplugged from
the AC outlet.

PROPER CARE
Bias Settings:
•When replacing the 300B vacuum tubes, you must adjust the bias settings of
the amplifier to account for the new tubes. These adjustments best performed
by your Canary Audio dealer as an incorrect bias setting can cause damages
to the tube and to the amplifier.
Break-in Period:
•As with most audio components, the CA-300 requires a “break-in” period.
During this period the internal components will stabilize and reach their
normal operating parameters. There are no special procedures required for
this break-in period, just listening to your favorite music will accomplish this
task all by itself.
•The time required to break in the CA-300 is approximately 30 to 50 hours.
Upon completion of the break-in period you will hear an improvement in the
overall sound quality of the amplifier.
Stacking:
•Place the unit in a horizontal position, and do not place anything heavy on it.
•Do not place the unit on any other equipment which may become hot.
No Fingers or Other Foreign Objects:
•Touching internal parts of this unit is dangerous and may cause serious
damage to the unit. Do not attempt to disassemble the unit.
•Do not put any foreign object into the unit through the ventilation slots and
openings.
Cleaning:
•A regular dusting with a soft, non-abrasive cloth will generally keep the finish
of the faceplate and chassis looking like new.
Packing Materials:
•The original packing materials and shipping boxes are custom designed to
prevent shipping damage from occurring.
•We recommend that you retain all of the packing materials and shipping
boxes for your CA-300 to be covered by warranty.
Registration Card:
•To ensure that your CA-300 is registered, please spend a moment now to
complete and return the Registration Card.
•Save a copy of the Registration Card and the bill of sale as proof of purchase
for future reference.

Diagram 1.1 Overview of CA-300
6SL7
5U4G 300B
TUBES INSTALLATION
The placement of the vacuum tubes for the CA-300 are to be placed in the exact
socket as shown in Diagram 1.1.
When placing a tube in the appropriate socket be careful not to force the tube,
make sure the pins are lined up carefully with the socket, then proceed to seat the
tube into the socket with a gentle rocking motion.
Be careful to identify each tubes particular placement, for each tube corresponds
with a particular socket.
After the placement of all the tubes, be sure to allow your amplifier to warm up for
one minute before each use.
TUBE BIASING
The CA-300 mono blocks amplifier is auto biasing. There is no need to adjust the
bias voltage for the power tube used in this amplifier.

SPECIFICATIONS
Model: CA-300
Rated Power Output: 8 Watts RMS
Input Sensitivity: 1.2 Volts for full output
Input Impedance: 100,000 Ohms
Frequency Response: +/- 3 dB from 10 Hz to 54,000 Hz
Total Harmonic: < 0.3%
Signal-to-Noise ratio: -84 dB below 1 Watt
Damping Factor: 3
Power Consumption: 100 Watts (true RMS)
Output Impedance: 4, 8 Ohm
Tube Complement (per channel): 1-300B,
1-6SL7GTB,
1-5U4GB
Dimensions (per channel): 8” W x 18” D x 7” H
Weight (per channel): 33 lbs.
Note:
Specifications are subject to change without notice. Weight and dimensions are approximate.

LIMITED WARRANTY
Canary Audio warrants to the original purchaser that each CA-300 single-ended
mono block power amplifier is free of manufacturing defects for a period of three
(3) years from the date of purchase. To receive this warranty, the original
purchaser must complete the enclosed Warranty Registration Card and mail it to
Canary Audio within thirty (30) days from the date of purchase. Canary Audio will
then validate the warranty to the original purchaser.
This warranty does not cover cosmetic damage or damage due to acts of God,
accident, misuse, abuse or negligence. This warranty does not cover damage
due to improper operation or maintenance, use with incompatible accessory,
connection to improper voltage supply, or attempted repair, modify or upgrade by
anyone other than Canary Audio or a facility authorized by Canary Audio. This
warranty does not cove any damages to the vacuum tubes and does not cover
normal maintenance.
Canary Audio shall not be responsible in any way for consequential or indirect
damages or liabilities resulting from the use and operation of the product covered
herein or resulting from any breach of this warranty or any implied warranty
relating to said product. Under no circumstances does Canary Audio assume
liability or responsibility for injury or damages sustained in the use or operation of
this equipment or for damages to any other equipment connected to it.
During this stated period, Canary Audio will repair or replace any defective
components free of charge. A Return Authorization Number (RA Number) is
required before any product is returned to our factory for any reason. This
number must be visible on the exterior of the shipping container(s).
Units to be repaired by Canary Audio must be sent shipping and insurance
prepaid by the original purchaser in the original packing material. Canary Audio
will accept no responsibility for any damage occurring to the unit that is shipped
in packing material other than the original packing material. A written description
of the defect and a copy of the original bill of sale should be accompanied with
the returned product.
This warranty applies only to the first end-user purchaser of a CA-300 single-
ended mono block power amplifier that is purchased and used in the United
States of America and is not valid for subsequent purchasers. All other
warranties or conditions either written or implied are void.
Canary Audio
P.O. Box 6216, Rosemead, CA 91770, USA
Telephone: [phone]
Http://www.canaryaudio.com