"Tat Chan" wrote in message
...
Keith G wrote:

I have recently received a cheap Chinese Sub which was badly dinged up in
the delivery (thanks a bunch, DHL...) and another one is being sent for
just a tenner to cover the shipping charges. So I've taped this one up
pro temps and have had some noises out of it and will give it a good
thrashing shortly.

Anyway , the instructions are in German, so I've got some questions about
the connections, which look quite comprehensive - see:

http://www.apah69.dsl.pipex.com/keit.../subwoofer.jpg

Hmm, the back of your sub looks like mine, but with better speaker
terminals. Though I can't really complain for £40!


Absolutely, provided it hasn't been damaged in transit!




I take it the 'Hi Level In' and 'Hi Level Out' is where the speaker
output wires from a stereo amp are routed for a normal 'sub/sat' stereo
setup? (amp - sub - speakers.)

Yes. The speaker wires from the terminals on the amp go to 'Hi Level In'
and the speaker wires from the 'Hi Level Out' go to the terminals on the
satellite speakers.


Yes, I'm happy with that and looking forward to trying on audio kit when the
replacement arrives. (I'm getting to keep the damaged one for effectively a
tenner! - Can't fault the eBay seller for that!! :-)



What about the 'Line In' and 'Line Out' (which I have never seen
before) - I presume the single SW phono connection from the AV amp can go
to either of the Line In sockets and they are 'commoned', but what are
the 'Line Out' phono sockets for?

possibly a connection to the power amp, if the pre-amp only has one
'pre-out' socket?


Yes, as 'nsj' has suggested also.




Finally the Phase Switch - I haven't heard much difference with either
setting yet. Is there a 'correct' setting?


I haven't heard a difference in mine either. I believe it depends on your
listening room condition and the distance between the sub and satellite
speakers.


Yep - make that I've heard *no* difference myself yet, either....



I have a M&K sub manual and this is what they say about phase

"the phasing test ensures optimum sound in the critical bass frequencies
where your sub and sats overlap.

Play a familiar CD/LP with steady consistent bass. Listen carefully to the
mid-bass (75 - 125Hz) region - the part of the specturm where electric or
string basses and drums are found. Move the phase switch to the opposite
direction. Now listen to the same musical passage again. If you hear less
bass, the original connections were correct. If you hear more bass, the
new connections are correct"


Excellent - I'll play about with it a bit more.

Many thanks to you both.