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Integrated amplifiers — Cayin CS-55A
Description, images, technical data and specifications
Cayin CS-55A
Image source — © Cayin
The CS-55A is a versatile tube integrated amplifier from Cayin, built with selectable triode and ultralinear operating modes. The CS-55A brings Cayin's most storied engineering heritage to a substantial tube integrated chassis with genuine sonic-character flexibility.
Key specs that matter
Two single-ended inputs are provided. Input sensitivity is 280mV, with input impedance at a substantial 100,000 ohms single-ended. Output power is 20W in Triode mode or 38W in Ultralinear mode - a distinctive selectable configuration. Frequency response spans a wide 5Hz to 48,000Hz within plus-or-minus 3dB. Signal-to-noise ratio is 92dB. At 360 x 334 x 180mm and 17kg, the CS-55A represents a substantial commitment reflecting Cayin's most storied tube-informed engineering heritage.
Sound and use context
Expect the warm, richly textured character tube amplification is broadly celebrated for, with the distinctive Triode/Ultralinear selectability offering the listener a choice between a more characterful triode signature and greater power.
Pairing
The selectable Triode/Ultralinear operation lets the listener choose the sonic character to match different loudspeakers or moods.
Alternatives
Cayin's own Jazz 70 offers a considerably more powerful alternative within the same broader integrated amplifier catalogue.
Key specs that matter
Two single-ended inputs are provided. Input sensitivity is 280mV, with input impedance at a substantial 100,000 ohms single-ended. Output power is 20W in Triode mode or 38W in Ultralinear mode - a distinctive selectable configuration. Frequency response spans a wide 5Hz to 48,000Hz within plus-or-minus 3dB. Signal-to-noise ratio is 92dB. At 360 x 334 x 180mm and 17kg, the CS-55A represents a substantial commitment reflecting Cayin's most storied tube-informed engineering heritage.
Sound and use context
Expect the warm, richly textured character tube amplification is broadly celebrated for, with the distinctive Triode/Ultralinear selectability offering the listener a choice between a more characterful triode signature and greater power.
Pairing
The selectable Triode/Ultralinear operation lets the listener choose the sonic character to match different loudspeakers or moods.
Alternatives
Cayin's own Jazz 70 offers a considerably more powerful alternative within the same broader integrated amplifier catalogue.
Specifications
Model name
CS-55A
Type
Tube Integrated Amplifier
Analog inputs (balanced)
N/A
Analog inputs (single-ended)
2
Input sensitivity (mV)
280
Input impedance (balanced) (Ω)
N/A
Input impedance (single-ended) (Ω)
100 000
Output impedance (balanced) (Ω)
4, 8
Output impedance (single-ended) (Ω)
N/A
D/A conversion
Yes
Phono MM/MC current-sensing input impedance (Ω)
N/A
Output power (8Ω) (W)
20 (RMS Triode), 38 (RMS Ultralenar)
Output power (4Ω) (W)
N/A
Gain (dBu)
N/A
Frequency response low +/- 3dB (Hz)
5
Frequency response high +/- 3dB (Hz)
48 000
Signal to Noise Ratio (dB)
92
Total Harmonic Distortion + Noise (%)
1
Damping factor
N/A
Dimensions (mm)
360 x 334 x 180
Weight (kg)
17
Official link
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