Denon POA-1001

 Solid State Stereo Power Amplifier POA-1001 (1978)

Usually for large output power amplifiers, a large number of power transistors are used in parallel, making it difficult to bring out its characyeristics. POA-1001, for the first time, was able to realize 100 W + 100 W by a single push-pull, proving that good sound reproduction is an absolute condition.

To the last stage transistor, which constitutes a decisive factor in the performance of a power amplifier, a newly developed bipolar power transistor with a collector loss of 150 W used after making every possible improvement in the switching characteristics. Balance drive system by 2-stage differential amplifier current mirror circuit.

Independent left and right power transformers, rectified circuitry, completely monaural constitution.

Oversized capacitor 88,000 µF and oversized heat sink.

Specifications:

Type:  Silicon transistor, DC power Amplifier

Rated Output (both channel driven):

125 W (RMS at each channel) at 4 Ω 20 Hz - 20 kHz

100 W (RMS at each channel) at 8 Ω 20 Hz - 20 kHz

Total Harmonic Distortion (at rated ouput):  0,05% (20 Hz - 20 kHz)

Intermodulation Distortion (60 Hz/7 kHz:4/1):  0,05%

Power Bandwidth:  3 Hz - 70 kHz

Frequency Response:  3 Hz - 100 kHz

Input Sensitivity/Impedance:  1 V (RMS)/ 50 k Ω

Output Impedance:  0,08 Ω

Damping Factor:  100 (at 8 Ω)

Signal-to-Noise Ratio:  110 dB

Low Filter:  10 Hz (18 dB/oct)

Power

Supply :  AC 120 V 60 Hz; AC 220/240 V 50/60 Hz

Consumption :  250 W

Dimensions (W x H x D):  410 x 200 x 280 mm

Weight:  22 kg