Aiwa AV-DV500 - Manual (Page 7)

POSITIONING THE SPEAKERS
Position the speakers to make the most of the Dolby Pro Logic or DSP effect (see "DOLBY LOGIC")
a) Front speakers
b) Center speaker
Position in the center of the two front speakers. In addition, position on or below the TV set, if connecting a TV set
to the unit.
c) Surround Speakers
Place the surround speakers directly to the side of or slightly behind the listening area. Align them horizontally,