Denon PMA-850 je najvyšší model integrovaného zosilňovača od Denonu z konca 70-tych rokov. 

Cena: 
Roky výroby: 1978

Technické parametre

Pre Amplifier Section
Rated Output (Both channel driven):
110 W RMS (at each channel) : 1 kHz (T.H.D. 0,05%, 4 Ω)
85 W RMS (at each channel) :  20 Hz to 20 kHz (T.H.D. 0,01%, 8 Ω)
Total Harmonic Distortion (at rated output, 20 Hz to 20 kHz):  less than 0,01%
Intermodulation Distortion (60 Hz : 7 kHz = 4 : 1)a rated output:  less than 0,02%
Power Bandwidth (both channels driven, 8 Ω):  5 Hz to 100 kHz
Transmission Characteristic:  DC to 100 kHz +0 dB, -1 dB (at 1 watt output)
Frequency Response (at 0,5 W output, -1 dB):  5 Hz - 100 kHz +0 dB -1 dB
Input Sensitivity/Impedance (20 Hz - 20 kHz):  1 V RMS/50 k Ω  ±10 %
Output Impedance:  less than 0,16 Ω
Signal-to-Noise  Ratio (IHF, A network at input terminal Shorted):  122 dB
Output Terminals:
Speaker :  A & B = 4 - 16 Ω load; A + B = 8 - 16 Ω load
Headphone :  for stereo headphone
 
Pre Amplifier Section
Pre Amp Output:
Max. Output :  25 V at 50 k Ω
Rated Output :  1 V
T.H.D. :  0,003% at 3 V output
Equalizer Amp Output:
Max. Output :  25 V at 50 k Ω load (T.H.D. 0,01%)
Rated Output :  320 mV
Input Sensitivity/Impedancce
Phono MM 1, 2  :  2,5 mV RMS/ 50 k Ω
Phono MC 3 :  0,37 mV (cartridge impedance 40 Ω)
Tuner :  320 mV / 40 k Ω
Aux, Tape :  320 mV / 40 k Ω
RIAA Deviation (20 Hz to 20 kHz):  ±0,2 dB
Signal-to-Noise Ratio (IHF, A network)
Maximum Allowable Input Phono:  200 mV RMS (1 kHz)
Phono MM :  better than 89 dB (input terminal shorted)
Phono MC :  better than 74 dB (input terminal 40 Ω)
Tuner, Aux, Tape :  better than 105 dB (input terminal shorted)
Aux to pre Out Frequency Response Tone Defeat:  5 Hz to 100 kHz +0 dB, -1 db
Tone Control Frequency Response:
Bass :  100 Hz ±8 dB
Treble :  10 kHz ±8 dB
Filter Characteristic:
Subsonic  :  20 Hz  at 12 dB/oct
High Cut :  9 kHz at 12 dB/oct
Loudness Control Characteristic:
Low Range :  100 Hz +7 dB
High Range :  10 kHz +6 dB
Muting level:  -20 dB
Power Source:  AC 120 V 60 Hz, AC 220/240 V 50/60 Hz
Dimensions (W x H x D):  434 x 164 x 400 mm (17-5/64" x 6-29/64" x 15-3/4")
Weigh:  17 kg (37,5 lbs)

 

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