Terry Pinnell wrote:
Could someone remind me of the simple test involving placing 'left'
and 'right' speakers close together facing each other please? Am I
right in recalling that they are in correct 'phase' when the volume
sounds reduced/muffled? Or is it the reverse?

(I have some cable extensions to do on the speakers that came with my
new PC, and both wires are identical, so I want to be sure I get it
right.)


In reasonably decent room, you should be able to tell without moving
the speakers; if you can't, the room needs fixing.

Play a mono signal, and what you should hear is a sharply defined image
dead centre between the speakers. If you can't locate it with your eyes
closed, the speakers are probably out of phse.

If you are still unsure, then put the speakers face to face. If the
phase is wrong, the volume you hear will be severely reduced, and bass
almost non-existent.

d