Denon PRA-1001

 Solid State Stereo Control Amplifier PRA-1001 (1978)

Pursuing the fundamentals of control amplifiers, this product is a result of looking into their functions, performance, design and other related problems. All the functions are incorporated.

A 7 transistor equalizer amplifier with 2-stage differential amplifier, current mirror circuit, last stage Class A pure complementary push-pull coupling.

Low distortion tone control circuitry of the NF type by means of passing through a complementary push-pull buffer with differential and inverted amplifier circuits.

Unique low distortion filter circuit capable of changing the cut-off frequency by change over to an independent filter amplifier

Distinct localization of the sound image with separation characteristics of 80 dB (20 Hz - 20 kHz)

Specifications:

Type:  all silicon transistor stereo control amplifier

Input Sensitivity/Impedance:

Phono 1 :  3,2 mV/50 k Ω

Phono 2 :  3,2 mV/30, 50, 100 k Ω

Max. Allowable Input:  300 mV (1 kHz)

RIAA Deviation:  ±0,2 dB (20 Hz - 20 kHz)

Max. Output/Rated Output:  10 V/1 V

Total Harmonic Distortion:  0,003%

Frequency Response:  10 Hz - 100 kHz (+0,1  -0,5 dB)

Signal-to-Noise Ratio (IHF A network):  better than 78 dB

Gain Control:  0, -10, -20 dB

Filter:  10 Hz ; 40 Hz (18 dB/oct)  7  kHz ; 14 kHz (18 dB/oct)

Crosstalk:  -80 dB (20 Hz - 1khz - 20 kHz)[Phono In - output defeat]

Power :

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

Consumption:  18 W

Dimensions (W x H x D):  410 x 152 x 271 mm

Weight:  8 kg