Cayin’s hybrid circuitry utilizes the best of both stereo worlds, in an aesthetically-pleasing brushed aluminum industrial casings, with the matching blue-lit power meters on the front to provide accurate usage tracking.
“H80A fulfilled its promise of delivering the best of tubes and the best of solid-state.

Power Output
Frequency Response
S/N Ratio
Input Sensitivity
440mm×533mm×235mm (W×D×H)
Net Weight
Supply Voltage
~220V±5% 50Hz
Power Consumption
Input Impedance

Cayin CS-55CD CD player

The Cayin CS-55CD is a stand-alone hybrid tube CD player developed to partner with the CS, MA and LA series integrated amplifiers. D/A conversion is accomplished by a Texas Instruments PCM5101 chipset, while the CS-55CD’s analogue output stage uses a 12AU7 tube. The CS-55CD utilizes a high-speed USB 2.0 receiving and decoding 32bit/384kHz high resolution digital signals together with high-quality audio operational amplifier circuits, with included USB input and remote.

Power Supply: 120V AC, 50-60Hz
Type: Full-function CD Player
Transport Mechanism: Sony KSM213
DAC: (2) 24-bit/192kHz DAC (PCM 1792 Burr-Brown chip)
Outputs (Gold Plated): (1) pair RCA
Digital Outputs: Optical & RCA Coax
Power Output: 2V +/- 3dB
Remote Control: Full function
Dynamic Range: 90dB, 120dB (HDCD)
Channel Separation: 90dB (1kHz)
Power Cord: Detachable power cord with IEC chassis mount receptacle
Tube Compliment: (1) 12AU7
Frequency Response: 20Hz-20kHz +/- .5dB
THD: Less than 0.2% 1kHz, 80W, 8
S/N Ratio: 90dB
Power consumption: 20W
Weight: 26.4 Pounds
Dimensions (WxDxH): 14″ x 12 1/2″ x 3 3/4″

Cayin CS-55A Tube Integrated Amp & USB DAC

The CS-55A is the most recent advancement in tube amplifier technology created by Cayin. It boasts forty watts per channel by using 4 KT88 tubes in Class AB ultra-linear push pull amplification. The CS-55A consists of four pairs of input: one Phono, a USB port, and two line inputs.
The CS-55A comprises of a fully anodized aluminum front, a vented chassis and a soft-start circuit to enhance the life of the toroidal power transformer and output transformers. Speaker output impedance can be swapped between 4 ohms and 8 ohms. Similarly to the A-88T, the CS-55A comes with a handy remote control.
The CS-55A includes a built in MM phono section to accommodate turntables and a built-in high resolution DAC for use with computers. Via the 2.0 USB input, the DAC is capable of covering digital audio signals up to 32bit | 384kHz.
The output stage can be switched between Triode and Ultra Linear mode and either KT88 or EL34 tubes can be used.

Power Output
KT88: 22W Triode – 40W Ultralinear
EL34: 20W Triode – 38W Ultralinear
Frequency Response
KT88: 5Hz – 44kHz (-3dB)
EL34: 5Hz – 48kHz (-3dB)
Input Terminal
USB, CD, Phono, Aux
Power Consumption
S/N Ratio
Input Sensitivity
KT88: 270mV
EL34: 280mV
360mm × 334mm × 180mm
Net Weight
Output Impedance
Input Impedance
Tube KT88: 4 x KT88, 2 x 12AU7/ECC82, 2 x 12AX7/ECC83
EL34: 4 x EL34, 2 x 12AU7/ECC82, 2 x 12AX7/ECC83