Cyber 10
CONTROL FUNCTIONS: Volume, Mode Switch, Power On/Off and Triode / Ultralinear Switch
POWER OUTPUT: 12.5watt ( Ultralinear ) / 8 watt ( Triode ) RMS 1kHz
TOTAL HARMONIC DISTORTION: less than 1%( 5 watt, 1kHz )
FREQUENCY RESPONSE: ( -3dB points at 5 watt ) 6Hz-70kHz
INPUT SENSITIVITY: 280mV
INPUT IMPEDANCE: 100k ohms
OUTPUT IMPEDANCE: 4,8 ohms. User selectable.
SIGNAL/NOISE: 90dB
CONSUMPTION: 60watt
INPUT INTERFACES: 1 group (RCA) - (on the rear panel )
INPUT INTERFACES: speaker terminals - ( on the rear panel ) and headphone jack - ( on the front panel )
OVERALL NEGATIVE FEEDBACK: Little ( -6dB )
VACUUM TUBE: KT88 / 6550 x 2, ECC82 x 1, ECC83 x 1
DIMENSIONS: 320 ( L ) x 260 ( W ) x 150 ( H ) mm
WEIGHT: 11kg ( packed )

Cyber 20
CONTROL FUNCTIONS: output high-low impedance selecting, Power on/off, Input level min/max
Output Power : 1W x 2
Frequency responsible at 0.5 W: 20Hz -50KHz
Distortion at 1W: < 0.4%
S/N Ratio with A weighting : 95db
Input sensitivity: 0.9V
Input impedance : 100K
Output Impedance: HIGH - LOW (10 Ohm - 600 Ohm)
Consumption: 26W
Input Sockets: RCA Gold Plate
Output Terminal: 6.5mm Mic Jack x 2
Tube: EL84 x 2,12AU7 x 1

Cyber 20b
CONTROL FUNCTIONS: Volume, Gain (low/high)
Switch, Power On/Off OUTPUT IMPEDANCE:
(low) 10-200 ohms,(high) 200-600 ohms
OUTPUT POWER at 1 kHz: 1W x2 RMS
POWER REQUIREMENTS: 123 VAC±10% BANDWIDTH at -3dB: 19Hz - 40kHz (1W) SIGNAL/NOISE: 90dB INPUT
INTERFACES: 1 group (RCA)
INPUT IMPEDANCE: 50k
INPUT SENSITIVITY for RATED OUTPUT: 900mV
OUTPUT INTERFACES: 2 groups (6.5mm Mic Jack) CONSUMPTION: 26W
VACUUM TUBE: EL84x2, ECC82x1
DIMENSION: 190 (L) x 145 (W) x 112(H) mm
WEIGHT: 8kg (packed)

Cyber 30
OUTPUT IMPEDANCE FOR SPEAKER: 4,8 ohms
OUTPUT IMPEDANCE FOR HEADPHONE: 10 ohms - 600 ohms
OUTPUT POWER: 3W x 2 RMS 1kHz FREQUENCY
RESPONSE: 10Hz - 36kHz - 3dB (1W)
HARMONIC DISTORTION: <1% (1W, 1KHz) S/N RATIO: 90dB
INPUT SENSITIVITY: 600mV
INPUT CONNECTOR: 1 set (RCA)
POWER CONSUMPTION: 86W
VACUUM TUBES: 2A3 x 2, 12AX7/ECC83 x 1 DIMENSION: 320 (L) x 260 (W) x 150(H) mm
WEIGHT: 13kg