Copland CTA408 User manual

1
COPLAND
CTA408
USER GUIDE

2
What’s in the Box
X 4
POWER TUBES POWER CORD REMOTE CONTROL
USER GUIDE AMPLIFIER
TUNG-SOL ELECTRONIC TUBE
KT150
USER
GUIDE
1.

3
GETTING STARTED
Open the carton and remove the amplifier from its plastic bag. Before placing the unit in your
home, read this carefully.
CAUTION!
Various regulation agencies require us to bring the following information to your attention.
Please read carefully.
WARNING ! To prevent fire or shock hazard, do not expose this unit to rain or moisture.
!Check that your supply voltage is the same as indicated.
!Dangerous voltage inside. Do not open the cabinet without disconnecting the
mains power cord.
!There are no user serviceable parts inside. Repairs should be carried out by
qualified service personnel only.
!Ensure that no objects or fluids pass through the ventilation openings.
If liquid is spilled into the amplifier, disconnect from the mains and consult a
qualified service technician.
Do not subject the amplifier to high mechanical vibration, the tubes are sensitive to this.
Allow adequate clearance so that cool air can enter at the chassis ventilation holes.
Never place the amplifier on a carpet or similar surface that obstructs air circulation through
the unit.
The trouble-free life of an amplifier is greatly extended by providing sufficient ventilation to
prevent build-up of high internal temperatures that cause deterioration.
The recommended minimum ventilation space is 50 cm wide and 40 cm high.

4
Installation
The KT150 power tubes have been carefully matched at the factory and the tube bias has
been set accordantly.
To prevent the output tubes from damage and disconnecting, the power tubes are not
installed during transport.
The box of each KT150 tube is marked with the number corresponding to its correct location
on the amplifiers main circuit board.
Each tube should be placed in the appropriate socket before use as shown on the drawing
below.
Be careful that the KT150 tube pin alignment tap meets the matching groove on the tube
socket before pressing the tube down the socket.
Tube positioning
Input / Outputs
Apart from the headphones, all connections are on the back panel of the amplifier.
Use shielded cables to connect the signal source to the amplifier input. To minimise the
possibility of hum, the shielded cables should run parallel to each other or loosely twisted
together. Locate the cables away from speaker leads and AC power cords.
AC Power
The amplifier AC power cord is plugged into an 115V/120V/230V/240Volt 50/60 Hz wall
outlet. The right voltage is indicated on the back panel beside to the AC power inlet.
!Check that your supply voltage is the same as indicated.

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Front Panel
1 2 3 4 5 6
1. Source Selector: Selects the appropriate
input signal source.
2. Tape Monitor: If you have connected a
tape recorder to the “tape in” on the back
of the unit, then switching ´Tape’will
make it possible to listen to tapes.
If your tape recorder has a monitor
capability (usually requires a separate
playback head), you can monitor your
tape recording as it is being recorded by
switching the tape button.
The Tape Monitor function can also be
useful when adding an Equalizer / Room-
correction unit in the signal chain.
A blue lamp right above the tape key
indicates Tape Monitor activated.
NOTE: When the Tape Monitor is engaged,
it bypasses the Selector Switch. Regardless
of witch source the selector is set for, you
only hear the tape input.
If the Tape Monitor is accidentally left on,
none of the inputs on the Source Selector
will operate.
3. Display: The display shows the selected
source input.
A flashing ‘ON’ lamp indicates that the
amplifier is under its 30 seconds start up
procedure.
When the ‘ON’ lamp stops flashing, the
amplifier sound stages starts operating
after another 20 seconds.
4. Power Switch: Pressing this key, the
amplifier will switch cyclically between
operation and standby mode. Power On
and Stand By are indicated in the display.
5. Audio Level: To adjust the volume to
the desired listening level, turn the control
clockwise to increase the volume.
6. Headphone output terminal.

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Back Panel
3 4 8 9
GND 8 ohm 8 ohm
4 ohm 4 ohm
GND GND
A1 A2 A3 A4
TAPE
INOUT
TAPE
MC
LOAD
50
100
470
RIGHT
LEFT
PHONO
LEFT SPEA KER
RIGHT SP EAKER
RIGHT
LEFT
INTEGRATED AMPLIFIER DESIGN BY COPLAND
MADE IN D ENMAR K
C O P L A N D
SER I AL NUMB ER:
AC. P OWER
MAX. POWER CONSUMPTION
50/60 Hz. VOLTAGE:
MC MM
LEFT LEFT
RIGHT
MC MM
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION !
RISQUE DE CHOC ELEC TR IQUE
NE PAS OUVRI R
ATTENTION !
Model No.
0I
1 2 3 6 5 10 11
1. Phono/RIAA Section: Accepts input from a Turntable. The amplifier is designed for a
MM magnetic pickup (cartridge) or MC (Moving Coil).
2. Phono Input Selector switch: MM (magnetic) pickup cartridge or MC (Moving Coil).
The switch should only be operated when the amplifier is turned off.
3. Impedance Load Selector Switch: Load impedance for MC (Moving Coil) cartridge.
The switch should only be operated when the amplifier is turned off.
4. Ground: Earth connection for any device that needs to be grounded.
5. A1, A2, A3, A4: Standard analog inputs.
6. Tape In: Connect with the playback outputs of a tape recorder.
7. Tape Out: The record output jack permits recording directly any signal being reproduced
by the amplifier.
8. Speaker Output Terminals: Right Channel
9. Speaker Output Terminals: Left Channel
10. AC Power: Mains power. I = ON. O = OFF
11. AC Power connector with fuse holder: 115V/120V/230V/240V AC, depending on country.

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Maintenance
The CTA408 is built for a long lifetime, and no special care needs to be taken, except from
what is already described under installation. However, the heart of the amplifier is the tubes,
and like a light bulb, they have a limited lifetime. After a period of time, they may affect the
performance of the amplifier. The tubes are operated around 50% of their full nominal
power, which considerably increases their life expectancy. The lifetime of the tubes should be
at least 4000 hours, assuming that the amplifier is switched on and off a couple of times per
day.
Fuse
The CTA408 employs a 20 mm glass fuse circuit breaker inside the IEC-AC socket at the back.
The fuse value is 5A.T (10A.T for USA)
Warranty and Service
Copland provides a warranty to the first purchaser for a period of two year.
Copland usually commissions the Copland agency in the country in which the amplifier
was purchased to carry out any warranty work.
Following consent from Copland in a particular case, the warranty service may also
be claimed at an agency in another country.

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Specifications
Output power: 2x75W into 3,5 ohms or 8 ohms load.
Nominal speaker impedance: 4 & 8 ohms
Line input impedance: 50 K ohms
Phono input impedance: 47 K ohms (MM)
50, 100, 470 Ohms (MC)
Line Inputs sensitivity: 250 mV
Phono sensitivity: 3.0 mV (MM)
0.26 mV (MC)
Frequency response: 10 Hz - 80 kHz -3dB
T.H.D: Better than 0.9 %
Signal / noise IHF-A): Better than 90dB
Phase: Non-Inverting
Overall Feedback: 15 dB
Headphone amp. Gain: 17.5 dB
Headphone amp. Out imp. 9 ohms
Headphone amp. T.H.D. Better than 0.05 %
Headphone amp. Freq. resp. 10 Hz –200 kHz / -3dB
Vacuum tubes: 4 pcs. KT150
2 pcs.12BH7
2 pcs. 6072A / 12AY7
Power consumption: Max.400 W
Dimensions: 435mm (w) x 220mm (H) x 460mm (D)
Shipping weight: 25 Kg.