In the new Class A Cayin Audio CS-805A Single Ended Integrated Amplifier, two 805A output tubes deliver a powerful 2x 50 watts. Classic WE6SN7 output triodes are used for the voltage amplifier stage of the Cayin CS-805A while exquisite 300B’s work in the driver stage for the 805A output tubes.

Cayin CS-805A Tube Integrated Amplifier:

Type:
Single-Ended Class A (SET) integrated tube amplifier with remote control 

Amplifier:
Output Power: 50W + 50W (into 4Ω or 8Ω) 
Frequency Response: 20Hz~35kHz (-3dB) 
Total Harmonic Distortion (THD): 0.5% (1W / 1kHz; 5% below rated power) 
Signal-to-Noise Ratio: 93dB 
Input Sensitivity: 300mV (Line inputs), 1300mV (Pre IN) 
Input Impedance: 100kΩ 
Output Impedance: 4Ω, 8Ω 

Tubes:
Tube Complement: 2 x 6SN7 (pre-amplification), 2 x 300B (driver stage), 2 x 805A (output stage) 
Additional Features: Adjustable bias for 805A tubes via integrated display, external hum balance control for 300B tubes 

Inputs & Outputs:
Analog Inputs: LINE 1, LINE 2, LINE 3 (RCA), PRE IN (RCA for external preamplifier) 
Speaker Outputs: 2 pairs (4Ω, 8Ω) 
Headphone Output: 1 x 6.35mm (front panel) 

Power:
Power Supply: 100-240V, 50/60Hz
Maximum Power Consumption: 450W 
Standby Power Consumption: Approx. 403W 

General:
Dimensions (W x H x D): 420 x 240 x 389 mm 
Weight: 38 kg (83.8 lbs) 
Operating Conditions: Temperature 0°C ~ 40°C, Humidity 20% ~ 80% 
Storage Conditions: Temperature -20°C ~ 70°C, Humidity 20% ~ 90%