Do No Harm ... well the least harm anyway

OK, thanks all. My reasoning for wanting to do this is to limit cone movement of the 2 full range drivers. Since they have no crossovers at all, they must play the delicate midrange as well as the thumpy bass. I figure if I can cut out the cone movement of the bass, the mids won't be smeared by that back and forth motion. I do use subs (Velodyne DD15's) next to each speaker. Since the main speakers are away from any walls their bass is not as strong as in a conventional room. My listening room is large as it encompasses the living room, dining room, kitchen and den all in an open floor plan. I have the subs lowpass set to 55Hz.

Yes, I also realize, the other option is to leave it alone. I'm just not sure if it's better to go down this path, or not.

I can see why you'd want to use subwoofers with your speakers, but I'd still run the speakers full range and set the low pass on your subs really low, which is really what usually sounds best.

Hi - the response to your question re, "intrusive to the original signal" is to use a passive ("line-level") or active, analogue xover. The passive is the easiest implementation, all you need are the electronic characteristics of the source & the load and from there it is very easy to design the high-pass you want. Many free apps online will give you the standard LCR values for your LR 24.

Why not ask Benchmark themselves?

OTOH, as you suggest, you could leave it alone. That, and enjoying the music, would be my recommendation.

“My reasoning for wanting to do this is to limit cone movement of the 2 full range drivers”
@koestner,

Have you reached out to your speakers manufacturer? They may be able to guide you on running your speakers full range with recommended amplification. A mis-matched amplifier is never going to sound good even with HP/LP filters. 

@cleeds Wrote:

Why would you want to limit bass to a full range speaker system?

JBL explains why see here page three B460 Bass System and page four BX63 Frequency dividing Network.

Mike

@koestner Wrote:

. I'm just not sure if it's better to go down this path, or not.

Maybe this will help see here. 😎

Mike