COPLAND
ARCIVES
SINCE 1984
CTA305
Control amplifier
Production start: 2002
Intended to be at the centre of a high performance audio system, the CTA305 is a flexible control amplifier with five line-level inputs, including a monitor loop, and a built in RIAA circuit accommodating moving magnet and high output moving coil cartridges.
Under its time of production two versions came out.
Like the CVA306 multi channel-amplifier the circuitry was changed for use with a new tube complement.
CTA305 tube complement:
First version: Serial No: 305001 - 305200
PCB Circuit board marked 305CA1
4 pc. ECC83 /12 AX7
Second version: Serial No: 305201 and forward.
PCB Circuit board marked 305CA2
2 pc. ECC83 / 12AX7 (RIAA Section)
2 pc. 6992 (Line Section)
Note! The ECC83 and the 6922 are not interchangeable tubes. Each version of the CTA305 can only run with its dedicated tube type.
System remote-control: Copland RC102
CTA305 Features:
4 Vacuum tube design
Phono RIAA Preamplifier
Inputs : Six
Tape Outputs : One
Record Monitor
Multi regulated power supply
All 1% Precision Film Resistors
All Polypropylene Film Capacitors
Shielded Power Transformer Toroidal-Core
Extra vide dynamic range 20V RMS Out
Ext. 12V remote power on/off trigger
IR Remote Control
Motor Driven Volume Control
CTA305 Specifications:
Vacuum tubes:
First version: Serial No: 305001 - 305200
(PCB Circuit board marked 306CA1 or 306CA2)
4 pc. ECC83 /12 AX7.
Second version: Serial No: 305201 and forward.
(PCB Circuit board marked 306CA3)
2 pc. ECC83 / 12AX7 (RIAA Section)
2 pc. 6992 (Line Section)
Output voltage: Rated 2 V, max. 40 V
Frequecy response Line : +0, -1dB from 10 to 100kHz
T.H.D. Phono – less than 0.1% (output 1 V)
CD, line – less than 0.1% (output 1 V)
Input sensitivity Phono:
3,2 mV (output 1 V)
CD, line : 280 mV (output 1 V)
Input impedance:
Phono – 47 k Ohms
CD, line – 25 k Ohms
Output impedance: less than 200 Ohms
S/N ratio (IHF-A-curve)
Phono: 80 dB
CD, line: More than 95 dB
Power consumption: 40 W
Normal mains voltage: 115 V or 230 V factory set for destination country only.
Mains voltage range: +/- 12%
Dimensions: 430 (W) 86 (H) 390 (D) mm
Weight: 7 kg.
