Aries Cerat Ianus Aperio
Image source — © Aries Cerat
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Model name
Ianus Aperio
Type
Integrated Amplifier
Analog inputs (balanced)
1
Analog inputs (single-ended)
4
Input sensitivity (mV)
N/A
Input impedance (balanced) (Ω)
N/A
Input impedance (single-ended) (Ω)
N/A
Output impedance (balanced) (Ω)
N/A
Output impedance (single-ended) (Ω)
N/A
D/A conversion
N/A
Phono MM/MC current-sensing input impedance (Ω)
N/A
Output power (8Ω) (W)
35
Output power (4Ω) (W)
N/A
Gain (dBu)
21
Frequency response low +/- 3dB (Hz)
N/A
Frequency response high +/- 3dB (Hz)
N/A
Signal to Noise Ratio (dB)
N/A
Total Harmonic Distortion + Noise (%)
N/A
Damping factor
N/A
Dimensions (mm)
420 x 310 X 420
Weight (kg)
80
Official link
Tube single-stroke stereo power amplifier. The output lamps are powerful RCA 813 straight–through beam tetrodes with a maximum power dissipated at the anode of 125 Watts in triode mode (there is also a version with 845 Elrog straight-through triodes in the output stage). The connection between the output and terminal stages is a transformer stage. The driver stage is based on an E280F (Siemens) pentode in a triode circuit with low internal resistance and very high steepness.
The amplifier uses Tridef technology, which, unlike FET, uses large output lamps and is maintenance-free, as their service life is designed for 10,000 hours.