Aiwa NSX-AJ80 Operating Instructions Manual page 11

The result is clear-cut sound images with a spacious stereo
spread, wider even than the physical distance between the
satellite speakers.
Piano
Vocal
Another benefit is the expansion of the "sweet spot", or the stereo
serving area. You can enjoy balanced stereo sound even when
listening in a position outside the front speakers.
The essence of great acoustics found in concert halls is a
favorable mixture of direct sounds from the stage and reflected
sounds from the ceiling and walls. The 3-Amp Panorama Sound
System works on your pychoacoustics in a similar way, where
you hear the "direct" sounds from the main speakers and the
"indirect" sounds from the satellite speakers. The result is a
listening experience with naturally enhanced spaciousness,
obtained without artificial processing.
4-Channel Multi-Amplifier System
To provide reinforcement for the ultra-low frequencies, in addition
to the Left/Right 2-channel amplifier used to reproduce mid-to-
high-range frequencies, this system incorporates a second L/R
2-channel amplifier just for reproduction of ultra-low frequencies
Bass
— making it, in effect, a 4-amplifier system. By utilizing discrete
amplifiers for mid to-high-frequencies and low frequencies, high-
quality sonic reproduction that is virtually free from distortion can
be realized.
This Multi Amplifier System, which utilizes independent circuitry
for the different frequency ranges, enables superb sonic
reproduction free from distortion.
Built-in Subwoofer System
The built-in subwoofer system has a separate subwoofer cavity
area that is part of the loudspeaker cabinet structure, which acts
as a sonic filter to cut distortion components. (In the Multi Amplifier
System, the ultra-low frequency signals transmitted from their
own independent amplifier are reproduced in this area.) This
separate construction gives a clear, rich definition to bass
reproduction and it can realize clear, well-defined mid-to-high
frequency signals.
And AIWA's built-in subwoofer system incorporates a subwoofer
capable of powerful, satisfying bass performance with true stereo
separation.
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