"OodlesoFun" wrote in message
.. .
I have a harmon/kardon satellite speaker system and have some
questions
regarding the subwoofer (powered, downfiring, only hookup
option is from
single RCA jack).

First off, these are small satellites, so what should I make
the crossover
setting on the receiver? (100, 150, and 200 are the options)
(the subwoofer
itself has no such option, but I think it reads "60" somewhere
on the back).

First read my other post and the two linked articles.

If they are really small satellites you may have integration
issues. What you want is a smooth frequency response from where
the sub drops out to where the mains pick up. With small
satellites at high volumes their low frequency ability is
reduced. You can end up with a dip in the response because the
satellites loose output near the crossover frequency.

One way to combat this with small speakers is to set crossover at
a relatively high frequency. However, you'll have to have a
really good sub that doesn't throw harmonic distortion into
higher audible frequency region...otherwise you'll easily be able
to pinpoint the sub location.

If your really serious about getting a good match I recommend
upgrading to more full range speakers and/or adding midbass
drivers to pick up the slack.

Also, the woofer has a volume(?) control knob on the back. But
I can also
control the subwoofer through the receiver. Is one set of
controls better
than the other? Could I just set the woofer's knob to half and
adjust the
bass via my receiver remote?

I recommend setting the receiver to 0dB and adjusting the sub amp
until the level is as close as you can get. Then use the
receiver to fine tune if necessary.

And finally, the woofer has a hollow tube on the back panel. I
have the
subwoofer practically against the wall (not the best place, I
know, but I'm
cramped for space). Should I just turn the subwoofer around
and allow that
tube to face the front rather than against the wall?

Keep obstructions away from port. A distance equal to several
port diameters is usually sufficient. Make sure at high volume
you can't hear port noise from the listening position.