subwoofers and panels don't mix

Audiokinesis,
Good to hear about your plans.You are right about the surrounds too.I have always preferred cloth surrounds to rubber.
I understand that many of the RCF woofers are now back in production.
I have mounted the L15/554k in a coffee table style box[firing down].This seems to sound best in the middle of the room.The gap at the bottom is about 100mm[4 inches].
This sounds superb with ER Audio stats as well as full range point source type speakers like Lowthers etc.
Many people swear by a high pass filter on the main speakers but I have found this is not really necessary unless they go below about 50hz-which most panels struggle to do.
Good luck.There is a real need out there for this type of low bass speakers that mainstream subs fail to address.

JT

"crossed over at 35Hz" !!

IMHO, a subwoofer that can't go higher than that, unloading the main speakers, is just as bad as one that can't go lower than 35 Hz. Sometimes audiophiles seem to get into a contest as to whose SW is crossed over lower. It reminds me of a Hoot Owl that lived at the nearby Audibon park. It would hoot back at you IF you hooted at a lower pitch. The hoot would go back and forth until the bird was as low as it could go.

I have Ribbons/Hybrid the Superslim 1800se speakers from www.ambiencespeakers.com.au and the Castle Classic Active Subwoofer, it required patience and time to get them perfectly well-integrated, seamless spectrum. I think ribbons and dynamic Sub Woofers can match perfectly well, it is a matter of adjusting and regulating. Best, Antonio Machado.

Thanks a lot, Ojgalli. I just spent ninety minutes dialing in my sub using the Rives CD2 and the Radio Shack meter. I forgot just what this would do to my two channel.

You are the coolest.

Hmmm... I know this thread is a bit old, just for others reading this and if you haven't gotten anything yet, I recommend the Hsu HO. I may have some of the problems described above but it sounds pretty darn good to me! Using test CD (Stereophile #2) and Radio Shack meter it wasn't hard at all to make it flat with some fiddling.

Try Tarzan (Phil Collins version) track 1 first minute, or Dark Side of the Moon track 1 first minute, then tracks 2 and 3... The Hsu with Magnepans will blow you away! Anyone else using these two together who thinks the Hsu is too slow? It could be, but I can't find a track where it is obvious. It just blows you away!!!! If someone thinks these aren't a great match, what is a track where I can try to detect it?