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| NEC AV-300PRO |
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| 139,800yen(around the 1989 time) |
Audio-video surround center corresponding to Dolby prologic surround.
The Dolby surround decoder is carried and Dolby
prologic surround is supported.
Furthermore, in order to always set the
Dolby prologic in the best status, the auto input balance which rectifies the
Lch-Rch level balance of an input signal automatically is carried.
It is
possible to carry the dual center functionality in center channels, and to
improve the lateralization of a center.
Moreover, when a center speaker
differs from a front speaker, the newly developed parametric equalizer is
carried so that the tone quality of a center channel can be adjusted.
The independent digital delay circuitry is carried 2 ch.
Delay time
is the span of 0msec - 30msec (it is an independent setups possible of a
right-and-left channel in the span of 15msec - 30msec at the time of the Dolby
prologic), and a fine tune of 1.5msec steps is possible for it.
Moreover,
the master volume has adopted the motor drive which remote control can also
control.
Three center channel modes are carried.
A normal mode is
the mode suitable for using a small center speaker, the signal with which 100Hz
or less was cut is sent to a center channel, and a signal of 100Hz or less is
distributed to right and left of a front.
The wide mode is the mode which
was suitable when the speaker more than a bookshelf type was used for a center, and sends a signal to a center channel as it is.
Moreover, in phantom mode, a center speaker is not used, but a signal is waved and divided into right and
left of a front.
3ch logic mode which was suitable when a rear speaker
was not used is carried.
A surround signal is made to output from right and
left of a front, and it is made to orientate in this mode in the location
supposing a rear speaker.
A power amplifier part is considering all five amplifier as a discrete stream composition, and has acquired the outstanding
property.
audio-video selector, surround, an attenuator (loudness level of sound),
a testing tone, the output level of a sound volume, and the operating state
of a stea meter (lateralization of an image) can be displayed by the liquid
crystal display and an onscreen.
Furthermore, the onscreen display screen is
a system set window, and can be chosen out of off and 3, 5, 7, and 9 seconds.
According to each input level, ATT level can carry out remote control
presetting of 0dB - the 13dB in the span of a 1dB step.
The ATT circuitry
has adopted the discrete ATT circuitry which uses the bipolar transistor focused
on a tone quality.
The testing tone which uses a noise sequencer is
carried and a sound-volume balance coordination of each channel is possible.
The REC serector, the Lec sound selector, and the Lec monitor are
carried.
The sleep timer functionality is carried and the setups by 3
hours is possible per 10 minutes.
1 minute before a power source is shut off
by a timer, AUTO FADE OUT operates.
The BSVA system control
functionality in which a control with the BSVA system of NEC is possible is
carried.
The multifunctional wireless remote control which carries a
learning function is attached.
The sound-volume balance of each channel of 5ch and the sound volume of a 5ch all channel are controllable at a 1dB step with a remote control operation.
There was also a black model
besides a silver model.
|
.JPG) |
.JPG) |
| Form |
audio-video surround center
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| <Amplifier part>
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| Output power (EIAJ, 1kHz) |
Front: 100W+100W (6ohm)
Center: 100W (3ohm)
Rear: 50W+50W (6ohm) |
| Frequency characteristic |
10Hz-100kHz+0 -3db |
| SN ratio (IHF-A) |
115dB |
| <Selector part>
|
Audio
Input sensitivity/impedance
|
Phono man month: 2.5mV / 50kohm
compact
disk, Tuner, Aux, Tape1/2, VIdeo1/2/3, VDP, BS/TV, V-Aux:150mV /, 50kohm
Main in: 1V/20kohm |
Audio
An Output voltage/impedance
|
Tape1, 2, Video1, 2 or 3:150mV / 2.2kohm
Pre out: 1V/1kohm
Mono out: 1V/1kohm |
Video system
Input sensitivity/impedance
|
Video: 1 Vp-p/75ohm
S image Y signal: 1 Vp-p/75ohm
S image C signal: 0.28 Vp-p/75ohm |
Video system
An Output voltage/impedance
|
Video: 1 Vp-p/75ohm
S image Y signal: 1 Vp-p/75ohm
S image C signal: 0.28 Vp-p/75ohm |
| <Decoder part> |
| Analog (Video in/Front out, it1)
|
| THD (1kHz) |
0.01% |
| Frequency characteristic |
20Hz-100kHz+0 -3 dB |
| S/N ratio (IHF-A) |
90dB |
| Digital (Video1 in/Rear out, Pro Logic)
|
| THD (1kHz) |
0.4% |
| Frequency characteristic |
20Hz-7kHz+0 -3 dB |
| S/N ratio (CCIR-ARM) |
76dB |
| <Synthesis>
|
| Supply voltage |
AC100V, 50Hz/60Hz |
| AC outlet |
Interlock: Two lines, a maximum of 100W
Un-interlocking.: One line, a maximum of 200W |
| Power consumption |
260W |
| Dimensions |
Width 430x height 166x depth of 450mm
|
| Weight |
17.9kg |
| Adjunct |
Wireless remote control LAR-300 |
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