Copland CTA305 User manual

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
We would like to take this opportunity to thank you for selecting the CTA305 Valve Pre-
amplifier.
We at Copland wish you many enjoyable hours in the company of fine music.
Please read this owners manual before operating the equipment.

Various regulation agencies require us to bring the following information to your attention.
Please read carefully.
 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. 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 spilt into the amplifier, disconnect from the mains and consult a
qualified service technician.

Open the carton and remove the amplifier from its plastic bag. The AC-power cord is placed
in the bottom of the carton. Before placing the unit in your home read this carefully.
Do not subject the amplifier to high mechanical vibration, the valves are sensitive to this.
The trouble free life of an electronic instrument is greatly extended by providing sufficient
ventilation to prevent the build up of high internal temperatures that cause deterioration.
Allow enough clearance so that cool air can enter at the top. With adequate ventilation the
amplifier can be mounted in any position.
The recommended minimum space is 45 cm deep, 45 cm wide and 30 cm high.

Use shielded cables to connect the input and outputs to signal sources and power amplifiers.
To minimise the possibility to 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. All
connections is made on the back panel of the amplifier.
 ! "
The amplifier AC power cord is plugged into a 110/120/220/240 volt 50/60 Hz wall outlet. The
right voltage is indicated on the back panel under AC power inlet.

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$%"""&Selects the appropriate input signal source. 
'%"( &If you have connected a tape recorder or a cassette deck 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),
then you can monitor your tape recording as it is being recorded by switching the tape button.
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 if the Tape Monitor is accidentally
left on, none of the inputs on the Source Selector will operate. 
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& ! "! )&By pressing this key, the amplifier will switch cyclically between operation
and standby mode. ! "on or *+ will be indicated in the display.
,&-"."&To adjust the volume to the desired listening level. Turn the control
clockwise to increase the volume.

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$&& Earth connection for any device that needs to be grounded.
'& )& For the input from a Turntable. The amplifier is designed for a
magnetic pickup (cartridge), or high output MC (Moving Coil).
&"& The record output jack permits recording directly any signal being
reproduced by the amplifier.
,&"& Connect with the playback outputs of the tape recorder or cassette
deck.
&"& Accepts the signal from a tuner.
0& & Input for a CD player.
1&2$& Input for any high output device.
3&2'& Input for any high output device.
4& &Right and Left output for extra power amplifier or active subwoofer.
$& &Right and Left output for Power-amplifier.
$$&$'5"6 "$7 '& DC jack for remote on/off operation of power amplifier
and CD-Player.
$'& ! "& The AC Power Cord is plugged here.

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The amplifier is build for a long lifetime, and no special care needs to be taken apart
from what is already described under installation. However the heart of the amplifier
is the Valves / Tubes and like a light bulb, they have a limited lifetime and can therefore
after a period affect the performance of the amplifier. You should therefore after 4000
playing hours, or if the amplifier changes sound, contact your service agent for replace-
ment of valves.
 +"."
Copland provides a warranty to the first purchaser for a period of one year that the
amplifier will work perfectly. 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.
"8
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Vacuum tubes 12AX7 / ECC83 (4)
Output voltage Rated 2V. max10V
T.H.D Phono - less than 0,1% (output 1V )
CD. Line - less than 0,1% (output 1V )
Input sensitivity Phono - 2,7mV (output 1V )
CD. Line -300 mV (output 1V )
Input impedance Phono - 47 Kohm
CD. Line - 25 Kohm
Output impedance Less than 600 ohm
S/N ratio ( IHF-A curve ) Phono - more than 80dB
CD. Line - more than 90dB
Power consumption 40W
Dimensions 430 (W) 86 (H) 390 (D) mm.
Shipping weight 10 Kg.