Denon PMA-960
Data[edit]
General
- Manufacturer: Denon
- Model: PMA-960
- Type: Integrated amplifier
- Years of manufacture: 1985 - 1986
- Made in: Japan
- Color: champagne gold / black
- Remote control: -
- Power consumption: 310 watts
- Dimensions: 470 x 168 x 440 mm (WxHxD)
- Weight: 15 kg
- Original price approx.: 1'998 DM
Connections
- Number of inputs: 7
- Phono MM: 2,5 mV 47 kOhm; Phono MC: high: 250 µV, low: 125 µV 100 Ohm; all others: 150 mV 47 kOhm
- Phono1
- Phono2
- DAD
- Tuner
- Aux
- Tape1
- Tape2
- Number of outputs:
- 2 speaker pairs A and B (single: 6-16 ohms, both: 12-16 ohms).
- Tape1
- Tape2
- Headphones/stereo headphones (550 mW / 8 Ohm)
Technical Data
- Continuous power (at distortion)
- 8 Ohm: 2 x 140 Watt; 20Hz-20kHz
6 Ohm: 2 x 170 Watt; 20Hz-20kHz
- Dynamic power
- 8 Ohm:
- 4 Ohm:
- Total harmonic distortion: 0.003% (20Hz-20kHz, at -3 dB nominal power into 8 ohms).
- Attenuation factor: 47 kOhm / 0.1 Ohm
- Frequency Response: 5 Hz - 80 kHz (IHF THD 0.02% into 8 ohms)
- Signal-to-noise ratio:
- Phono MM: 90 dB
MC: 75 dB
- Tuner, Aux, DAD, Tape1 and 2: 110 dB
- Stereo channel separation:
- Tone control:
- Bass: ±8 dB (100 Hz / 50 Hz selectable).
- Treble: ±8 dB (10 kHz / 20 kHz selectable).
- Loudness: 100 Hz (+7 dB), 10 kHz (+6 dB)
- High Filter: -
- Low Filter (Subsonic): 18 Hz, 6 dB/oct
- Mute: -20 dB
- Direct/Line-Straight: yes
Special Features
- for bass and treble control can be selected between two operating frequencies each
- the input sensitivity of the equalizer preamplifier can be switched for magnetic (MM, moving magnet) or dynamic (MC, moving coil) pickup systems
Remarks[edit]
Excerpt from the description text of the user manual
- "Fast dual super circuit signal transmission without feedback'
Theoretically, the distortion in this circuit can be reduced to zero because only the output stage equalization is demodulated and connected at the output side. Dynamic characteristics are improved because the signal is not fed back to the input, resulting in high-speed signal transfer. (slew rate +-350 V/µs)
- Wideband equalizer amplifier
Conventional LF and CR equalizers have been developed into high quality wideband equalizers and thus high signal-to-noise ratio has been ensured. Furthermore, the deviation from the RIAA curve in the frequency range from 20 Hz to 100 Hz is only +-0.2 dB.
- No capacitors in the signal path
The circuit design was simplified by using a direct DC servo circuit. This completely replaced the large decoupling capacitors that caused equalization from start to finish, making the unit a true direct amplifier capable of reproducing real music signals."
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