Archived from groups: rec.audio.tech (More info?
Alex Rodriguez wrote:
> In article <firstname.lastname@example.org>, email@example.com
> >I'm using two mono blocks running one pair of speakers and this is
> >connected to a cdp. The mono blocks have volume controls so there is
> >no need for a pre amp. I want to add a sub woofer and would like some
> >advice on connecting it to this setup. Thank you...
> If you get a passive sub, then you would just run the speaker wires to the
> sub and then from the sub to your current speakers. I can't think of a way
> to run a powered sub without also adding a pre-amp.
Several higher quality subs (e.g., REL) have high impedance
speaker level inputs on them. You simply connect the speaker
level inputs on the Sub to the speaker output terminals of the
amps (i.e., in parallel with your speakers). You then can adjust
the level and low-pass crossover points on the sub to properly
blend with the main speakers.