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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