Copland Audio Releases CTA407 Integrated Valve Amplifier

Posted on 19th February, 2023
Copland Audio Releases CTA407 Integrated Valve Amplifier

Copland Audio has been enjoying the ongoing release of amplifiers to its range over the past few years, but the new CTA407 is very much its top-of-the-range full-blooded tube integrated amplifier.

While its smaller brothers that have been launched previously featured a Hybrid configuration, employing Copland's double triode gain stage with MOS-FET buffering, the CTA407's power stages are also tube equipped.

The push-pull output stages consist of a pair of matched power tubes in a fixed ultra-linear configuration, providing the low distortion of triodes and the power of tetrode valves. According to the company, 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 - while the amplifier can deliver most of its power while operating in class A. 

Aleksander Maksimovic, Managing Director of Audio Magic, which represents Copland Audio in Australia, told StereoNET:

The CTA407 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 a vast improvement to the overall fidelity of the amplifier.

The CTA407 employs five line-level inputs, including a tape monitor loop, a built-in RIAA phono circuit accommodating moving magnet, and high output moving coil cartridges. 

The CTA407 comes supplied with 4 x KT88, 2 x 12BH7, and 1 x ECC83 tubes, measures 435 x 215 x 390mm (W, H, D), and weighs 25 kg. The CTA407 employs a motor-driven volume control and can be fully controlled by the Copland RC102A remote control unit.

Aleksander continued:

The CTA407 can provide an extraordinarily accurate reproduction of music without tendency towards listening fatigue, featuring strong dynamics and a wide flexibility in the choice of speakers. The vanishing low perceived noise from the amplifier itself is a bliss, especially for owners of high efficiency loudspeaker systems.

First shown at the Munich HIGH END Show in 2022, the Copland Audio CTA407 Integrated Amplifier replaces the now-discontinued CTA408. Local pricing and availability has not yet been confirmed.

For more information visit Copland Audio

Marc Rushton's avatar

Marc Rushton

StereoNET’s Founder and Publisher was born in England and raised on British Hi-Fi before moving to Australia. He developed an early love of music and playing bass guitar before discovering the studio and the other side of the mixing desk. After writing for print magazines, Marc saw the future in digital publishing and founded the first version of StereoNET in 1999.

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