Think of the flagship Copland CSA 150 as an integrated amplifier for those who just can’t decide between tubes and semiconductors. Danish manufacturer Copland’s latest is the most powerful CSA series hybrid, an over-the-top range integrated boasting a hybrid design, using a double triode gain stage (6922) with MOS-FET buffering. The dual triode operates at high voltage in a configuration for maximum linearity, taking care only of the voltage amplification. The MOS-FET circuit, in turn, provides a powerful force that drives the linear stage output and feedback circuit, thus facilitating the collaboration between the world of voltage-controlled electronic tubes and current-controlled transistor technology.
The solid-state bipolar output stage is rated with an output power of 150-watts per channel into 8Ω and 230-watts per channel into 4Ω. Copland rates the CSA 150 with a frequency response of 10Hz to 150kHz (–3dB) and a signal-to-noise ratio of ‘better than’ 90dB (IHF-A).
The Copland CSA 150 has a built-in DAC that uses an ES9018 Reference 32-bit DAC to provide multiple S/PDIF inputs (one coaxial, two optical) plus a USB input and has both PCM and DSD capabilities. An optional aptX HD Bluetooth module can be fitted if wireless capability is required.
For analogue use, the Copland CSA 150 has three unbalanced line inputs, two balanced line inputs and a phono input (MM). It also has a dedicated headphone output stage and balanced and unbalanced line-level outputs.
The Copland CSA 150 hybrid integrated amplifier will retail at £4,690 / $6,530.