Output power
2 x 50 W
Speaker impedance
4 & 8 ohms
Line input impedance
50 K ohms
Line sensitivity
280 mV
Frequency response
5Hz-100KHz -3dB
T.H.D.
Better than 0,2 dB
Signal / Noise
Better than 90 dB
Phase
Inverting
Vacuum tubes
4xKT88. 2x12BH7. 1xE83CC.
Power consumption
250 W
Dimensions
430(W) 185(H) 390 (D)
Shipping weight
25 Kg
The Copland CTA405 is the result of careful research and development, combining the best of classical construction with the latest in circuit design.
The current capacity of the CTA405 power supply and output transformers is fully sufficient for a 100 Watts output power. However, with operation conditions set for minimum variation of plate and screen current in the output stage, excellent performance is obtained with very low feedback at 2x 50 Watts per channel.
The output transformers are specially made for this amplifier. Employing a high quality silicon ion core and perfect symmetry of the segmented windings, a frequency response from 5 Hz to 100 kHz is obtained with low distortion and high stability over the entire audible frequency range. The system remote supplied will also control the Copland CD players.
