Audio Database

The

DENON PMA-930V
54,800yen(around the 1985 time)

Description
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The Integrated Amplifier which carries non-feedback system power amplifier.

A power amplifier part uses a voltage magnification stage and an electric power magnification stage as the amplifier separated completely electrically unreturned [ of 0dB ], and reduces dynamic distortion, such as TIM distortion, and all distortion, and also is suppressing the influence which the back electromotive force from a speaker has on a pre-driver stage.
Furthermore, the power transistor of Pc100W was adopted and high power is gained.

The power transformer of a multiplex shield and a 16,400-micro F block capacitor are adopted as a power-source part.

Broadband-ization is realized by adopting a super equalizer as an equalizer amplifier part.
Moreover, the change of MC/MM is using remote control inside the plane, and has prevented degradation of the signal to noise ratio by leading about of wiring.

The broadband real-time tone control which suppressed quality degradation, and a Subsonic Filter are carried.

The high-speed protection circuit is carried.


Rating of a mode
Form Integrated Amplifier
<Power amplifier part (Tuner -> SP out)>
Output power 80W+80W (6ohms)
70W+70W (8ohms)
Input sensitivity/impedance 150mV/30kohm
THD 0.007% or less
Cross modulation distortion 0.003% or less
TIM distortion Below measurement full limits
Slew rate More than }150v/microsec
Output bandwidth (both channel drive) 5Hz - 80kHz (THD 0.1%)
Frequency response (at the time of 1W output) 4Hz-250kHz+0 -3 dB
Output load impedance (1kHz) 0.1ohm
Output terminal Speaker AorB: 6ohms - 16ohms
Speaker A+B: 12ohm-16ohm
Headset jack: 230mW/eight ohms
<Preamplifier part>
Input sensitivity/impedance Phono MM: 2.5mV/47kohm
Phono MC: 0.2mV/100 ohms
CD, Tuner, Video, Tape:150mV/30kohm
The maximum except take-off/Output power 10V/150mV
THD 0.001% or less (1kHz, 8V)
RIAA deflection 20Hz-100kHz}0.3dB (MC)
<Synthesis>
Signal to noise ratio (an input short circuit, Weight A) Phono MM: 86dB (at the time of a 2.5mV input)
Phono MC: 70dB (at the time of a 0.25mV input)
CD, Tuner, Video, Tape: 106dB (at the time of a 150mV input)
Tone control Bass: }10dB (100Hz)
Treble: }10dB (10kHz)
Subsonic Filter 18Hz, 6 dB/oct
Loudness control characteristic Low-pass: +7dB (100Hz)
High region: +6dB (10kHz)
Power source AC100V, 50Hz/60Hz
Power consumption 150W
Dimensions (a base, a knob, a terminal included) Width 434x height 112x depth of 393mm
Weight 9.3kg