Pioneer PDSP-1 manual Features, Beam control technology

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Features

This digital sound projector is a totally new product unlike conventional home theater systems. It produces multi- channel surround sound from a single speaker array, without the need for numerous speaker settings and wiring hassles.

The following section introduces the features that enable the PDSP-1 to produce its remarkable new sound.

1.Beam control technology

254 individually driven speaker units are arranged in an array on a single panel, and the directionally controlled audio from this array is radiated in a beam. The sound of each channel radiated in this beam utilizes the reflectivity of ceiling and walls to produce multi-channel sound.

Audio beam image

The accompanying illustration depicts the way in which the sound beam radiated from the PDSP-1 arrives at the listening position. In this way, surround sound is produced that totally envelops the listener.

Front left-right channel

Rear left-right channel

Center channel

PDSP-1 PDSP-1 PDSP-1

LISTENING	LISTENING	LISTENING
POSITION	POSITION	POSITION

Multi-channel sound field image

PDSP-1

LISTENING

POSITION

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