Steve W wrote:

Hi
I've just bought an inexpensive DVD Player with 5.1 surround sound
(Amazon.co.uk's £50 Starlogic). It plays a DVD with 5.1 sound just fine,
with sound from all six speakers. So far so good. But when I play CDs or
MP3 CD Roms it simply sends the right and left signals to the Front Left and
Front Right speakers. Fair enough, you might say, but these only have a
frequency response of 200Hz to 20kHz. I had rather assumed that the DVD
Player would have some crossover circuitry to send the lower frequency
spectrum to the "Subwoofer".

Now, I know it's only a cheap player, but it does seem to have all the
functionality of a more expensive machine and so I'm surprised that it
doesn't seem to be able to do this. Is it possible that I'm missing
something on the setup of the player?

Yes.
What amp are you using?
How is it connected? Digital or 6 analog phonos?

--
Eiron.