"James Harris" no.email.please wrote in message
.. .
Hi,

My hi-fi sounds great sometimes and not others. I am told that it needs an
hour's warm-up
and this could fit with the times it has sounded good. For example, great
one evening but
poor the next morning. I leave the electronics on but not playing.

Is there a CD that can be played to loosen the system up? I suspect the
speakers most.
Bass extension is particularly absent at times. Any suggestions as to
whether playing a
very low frequency sine wave or similar could do the trick?

--
TIA,
James



My hi-fi sounds great late night and during the early hours... single malt
may have a lot to do with it ;-)