On Thu, 11 Jun 2009 16:34:57 +0100, "David Looser"
wrote:

"Bill Taylor" wrote in message
.. .
On Thu, 11 Jun 2009 14:29:35 +0100, "Dave Plowman (News)"
wrote:

A thread on another group suggested that these are the norm today. Not
being one who avidly reads the Hi-Fi press, is this so? The poster was
adamant it was the *only* way to feed 5.1 speakers etc that have internal
amps, as unbalanced would cause hum etc. This was from the US, though.

It's quite common for half decent subs to have an XLR connection as
well as phono.

I'd have thought that "half-decent subs" would be passive, driven by an
external 19" rack-mounted power amp.

David.


They may be in the cinema sector, but in domestic audio the PA is
usually built into the speaker enclosure.

Bill