Copland CTA407 Integrated Tube Amplifier
THE NEW COPLAND CTA407 INTEGRATED TUBE AMPLIFIER IS NOW SHIPPING
The Copland CTA407 Integrated tube amplifier is designed with the Danish HiFi brand’s distinctive ‘mood of luxurious puritanism’.
However, with the CTA407 tube amplifier, Copland say that they ‘have compromised simplicity, introducing a fair deal of electronics supporting the audio stages of the amplifier’.
TUBE BIAS AND DIAGNOSTIC SYSTEM
The forty LED diodes on the front panel (10 for each tube) are the visual part of the CTA407 tube bias and diagnostic system. And the LEDs can be turned off if you don’t want to read the status of your power tubes on the fly.
The Copland CTA407 Integrated tube amplifier will automatically adjust for any tube in the 6550/KT88/KT120/KT150 family. The CTA407 servo system is not only a lossless automatization of the bias adjustment, it is an integrated part of the CTA407 internal high pass filtering, closely matched to the transfer function of the amplifying circuitry and designed as a vast improvement to the overall fidelity of the amplifier.
COPLAND CTA407 INPUTS AND OUTPUTS
The CTA407 employs five line-level inputs including a tape monitor loop and a built-in RIAA phono circuit accommodating moving magnet, as well as high output moving coil cartridges. It is a development of the CTA405 amplifier which was launched more than a decade ago.
The push pull output stages consist of a pair of matched power tubes in fixed ultra linear configuration, providing the low distortion of triodes and the power of tetrode valves. A pair of 6550 or KT-family tubes in push-pull configuration can deliver more than 100W of audio power. Moderating the power output, the CTA407 delivers 2x50W in high biased class A/AB mode. In practice, this means that the amplifier can deliver most of its power in class A.
REMOTE CONTROL
The CTA407 employs motor-driven volume control and can be fully controlled by the Copland RC102A remote control unit.
COPLAND CTA407 SPECIFICATIONS
Tubes: 6550/KT88: 4pcs. 12BH7: 2pcs. ECC83: 1pcs.
The auto-bias system will adjust also for use with: KT90 / KT100 / KT120 / KT150
Rated power: 50W / channel at 4 / 8 ohms
THD: Less than 0.5 % at all levels
Frequency response: 10 Hz 150 kHz – 3 dB
Input sensitivity Line: 200 mV for rated power
Input sensitivity Phono: 2,5 mV for rated power
Input impedance Line: 50 K ohms
Input impedance Phono: 47 K ohms
S/N ratio (IHF-A): 100 dB
Power consumption: 300 W
Nominal mains voltage: 115V or 230V / 240V. Factory set for destination country only
Mains voltage range: +/- 12 %
Dimensions (mm.) 435 (W) 215 (H) 420 (D) / Weight 20 kg
COPLAND CTA407 INTEGRATED TUBE AMPLIFIER PRICE AND AVAILABILITY
Available with a black or silver front panel, the Copland CTA407 integrated stereo valve amplifier is now shipping to the UK, distributed exclusively by Absolute Sounds. The UK RRP is £6,500 inc. VAT.
HiFi Pig Says: ‘Luxurious Puritanism’ is a very good description of the Copland style and the Copland CTA407 continues this aesthetic, a great looking and I am sure sounding integrated amplifier.
