The CSA100 integrated amplifier is the latest work by Copland, aiming to combine the advantages of tubes and transistor amplification using the synectic design concept from previous Copland hybrid Amplifiers.

The CSA100 amplifier employs a solid stage 2 x 100W current feedback power plant, fed by a double triode tube- preamplifier.

Hybrid Amplification

One tube is responsible for the CSA100 line amplification and the efficiency of this single tube layout is astonishing. The double triode tube runs at high voltage in a setup for maximum linearity, taking care of the voltage amplification only. A MOS-FET circuitry delivers the brute force driving the line stage output and feedback circuitry, thus securing a firm handshake between the world of electronic tubes governed by voltage and the current controlled transistor technology.

If you want the warm and nice colored charm of some older tube designs look elsewhere, the CSA100 tube line stage is made for monitoring. In this application the tube provides” life, headroom and dynamics”  hard to find in amplifiers relying on solid stage technology only.

Vinyl & Digital

For the vinyl enthusiast the CSA100 has RIAA input for MM cartridges. The amplifier also employs an excellent D/A converter with multiple S/PDIF inputs, PCM, and DSD capabilities using the ES9018 Reference 32-bit DAC in quad-mono configuration, 8 mono to 2 stereo configuration.

CSA100 Specifications:

Output power: 2*100W into 8 ohms load. 2*180W into 4 ohms load.

Minimum load: 2 ohms

Analogue Inputs: 1*balanced (XLR)

3*unbalanced (RCA)

Digital Inputs: 1*coaxial S/PDIF.

2*optical S/PDIF.

1* USB.

1* aptX HD Bluetooth (Optional Extra)

Line output: 1*unbalanced (RCA)

1* Pre-out /unbalanced variable (RCA)

Line input impedance: 50 K ohms

Phono input impedance: 47 K ohms (MM)

Phono input Capacitance: 200 pF

Line Inputs sensitivity: 250 mV

Phono sensitivity: 2.6 mV

Frequency response: 10 Hz – 150 kHz -3dB

T.H.D: Better than 0.06 %

Signal / noise IHF-A): Better than 90dB

Phase: Inverting

Headphone amp. Gain: 22 dB @ 100 ohms load impedance

Headphone amp. Out imp. 40 ohms

Headphone amp. T.H.D. Better than 0.05 %

Headphone amp. Freq. resp. 10 Hz – 150 kHz / -3dB

Vacuum tubes: 1 pc. 6922

Power consumption: Max.700 W

Dimensions: 435mm (w) x 135mm (H) x 370mm (D)

Shipping weight: 14 Kg.


Available in the UK through Absolute Sounds UK RRP: £3,498

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