Audio Database
Cyrus III
Commentary

An integrated amplifier based on CYRUS I and CYRUS II with further improvements.

A 180 VA toroidal transformer is used for the power supply.
By adopting a unique configuration for the core of this transformer, mechanical noise is suppressed to 0.

By using a patented slit foil condenser with small eddy currents and a star earth system that concentrates the earth point at one point, we have obtained accurate localization and stable sound images.

It is designed to adjust volume and balance through an 8-bit microprocessor.

Magnesium / aluminum die-cast chassis is adopted for the chassis, which is resistant to disturbance vibration and magnetostriction and has improved heat radiation efficiency.

DC power supply unit PSX-R is available.

Model Rating
Type Pre-main amplifier
Effective power
Normal :

When using PSX-R :
50W + 50W (8 Ω)
70W + 70W (4 Ω)
57W + 57W (8 Ω)
90W + 90W (4 Ω)
Distortion factor 0.02% (1 kHz, 8 Ω)
0.03% (1 kHz, 4 Ω)
Available supply current 30A(p-p)
Frequency characteristic 2 Hz to 80 kHz -3dB
Signal-to-noise ratio MM : 80 dBA (5 mV Standard)
Line : 98 dBA (0.5 v standard)
Input sensitivity MM : 2.75 mv (max. 50 mv)
Line:200mV
Output voltage Tape out:200mV
Pre out:380mV
Damping factor 100
Input terminal CD, Video, Tuner, Aux, Tape
Output terminal Speaker (4 mm diameter banana jack)
Pre-amplifier (bi-amp-supported)
Tape
Pwer 180 VA toroidal transformer, 6 separate stabilized power supply
Power consumption 119W (Electrical Appliance and Material Control Law)
External dimensions Width 215x Height 73x Depth 360 mm
Weight 4.6kg