Âm ly Opera Cyber-880A Stereo Power amplifier

Technical Specification:

CONTROL FUNCTIONS: Power On/Off
POWER OUTPUT:30 watt x 2, RMS 1kHz
TOTAL HARMONIC DISTORTION: less than 1%( 20watt, 1kHz )
FREQUENCY RESPONSE: ( -3dB points at 50 watt ) 5Hz-85kHz
INPUT SENSITIVITY: 850mV
INPUT IMPEDANCE: 100k ohms
OUTPUT IMPEDANCE: 4, 8 ohms. ( User selectable )
SIGNAL/NOISE: 90dB
CONSUMPTION: 300watt x 2
INPUT INTERFACES: 1 group ( RCA )
OVERALL NEGATIVE FEEDBACK: Little
VACUUM TUBE: 2A3 x 8, 12BH7x 2, ECC82 x3
DIMENSIONS: 450 (L) x430 (W) x190(H)mm
WEIGHT: 35kg