POA-1003
Power Amplifier was introduced to do away wit unnecessary decoration with the
sole object of listening to music. Simple in design, with no distortion, it
offers quick responding transparent sound by providing circuitry for DC
amplifiers. Left and right completely monaural constitution. Either side is
provided with an excessive power circuit, highly accurate peak meter allowing
ultra wide, and low distortion.
DC power
amplifier with features of cascode coupling at
the first stage low noise FET differential amplifier, a stage of current
mirror differential amplifier with emitter follower predriver, bipolar type
power transistor of a clas with a collector loss of 100W in a novel circuitry
of pure complementary ICL OCL, producing a wide band, low distortion, and high
Signal-to-Noise ratio.
A stable DC
drift of 1,6 mV/°C
Exceptional
damping factor of 200
Highly
stabilized constant voltage circuitry use in the first stage power section,
oversized capacitor 88,000 µF, left and right independent transformer.
Specifications:
Type: Silicon Transistor, DC power Amplifier
Rated Output
(both channel driven):
20 Hz - 20
kHz at 4 Ω : 100 W rms at each channel;
20 Hz - 20
kHz at 8 Ω : 85 W rms at each channel
Total
Harmonic Distortion (at rated output):
0,005% at 20 Hz , -1 kHz; 0,03% at 20 kHz
Intermodulation
Distortion (60 Hz /7 kHz: 4/1): 0,02%
Power
Bandwidth: 3 Hz - 70 kHz
Frequency
Response: DC 100 kHz +0 dB, -1 dB
Input
Sensitivity?Impedance: 1 V rms/50 k Ω
Output
Impedance/Damping Factor: 0,04 Ω/200 (at
8 Ω)
Signal-to-Noise
Ratio: 119 dB (IHF A)
Low Filter:
20 Hz (6 dB/oct)
Power
Supply: AC 120 V; Ac 220 V, 50/60 Hz
Power
Consumption: 250 W
Dimensions
(W x H x D): 410 x 200 x 285 mm
Weight: 18 kg
I need power switch (yellow knob on the left) for this amp. Can anyone help.
RispondiEliminaMuch appreciated.
Hello Friends,
RispondiEliminaI need POA-1003 service or owners manuals, many thanks.