Monitor W. Subwoofer VS. Floorstander??

re: optimum x-over frequency, i've heard it said that it should be an octave higher then the -3db point of the monitor. my monitor's frequency response is to 40hz, so i should theoretically set the x-over to 80hz. but, w/the flexibility of the marchand - besides having separate wolume pots for both low & hi-pass, there's a wolume pot for the x-over point - i get good integration w/the x-over set to 60hz, only 1/2 octave above the monitor's lowest response. as the marchand's x-over slope is a rather steep 24db/octave (also maintains correct phase), i tink this allows a bit lower x-over point. the marchand's x-over points can be changed w/inexpensive plug-in modules, so ewe can experiment. i'd suggest starting low, and working your way up if there's a suck-out at the x-over frequency that can't be adjusted for w/the wolume control for the x-over frequency. i also found it helpful to use an old, cheap adc spectrum analyser/pink noise generator to check the adjustments of the x-over wolume pots. as my subs are much more efficient than the monitors, i *gnu* i'd have to start w/the subs' wolume backed off ~4-db; this turned out to be correct. but, i also discovered that the x-over point wolume pot had to be backed off 2db to get the flattest room response. this leads me to believe that i could prolly get away w/an even lower x-over point of, say 50hz, but as everyting integrates so well now, i'm not planning on messing w/it any time soon.

hope this helps, doug s.

Hi Stan, I own a pair of ProAc Tablette 50 Signatures matched to an NHT SW3P subwoofer and am very happy with the combo.

Integrating the sub with the monitors can be pretty tricky depending on the limitations of your room and its contents, but it is well worth the effort. With every speaker change, cable change and component add-on, I've had to adjust the volume and crossover of the NHT SA-3 amp. I do all the adjustments by ear, whatever sounds right to me. I believe the crossover is set to somewhere around 40hz. Since I listen to a lot of acoustic type music, I try not to let the sub intrude too much on the purity of the ProAc's midrange.

Audition some subs if you're able. I agree with the people suggesting the REL subs. I want to get one, or even TWO some day myself. Strata or Storm, it doesn't matter to me. Good luck and have fun.

i tried a rel strata - one-note-thump was my experience. my brother-in-law could never get it to integrate well w/his proac 1.5's - ruined the midrange transparency, regardless of which option used on the rel's built-in electronics... he bought it used, let me try it, sold it in a week...

ymmv, doug s.