Hi efficient speaker, bass problems

Hi Duke,
This all makes sense, back in my old days at SpeakerCraft/Marcof, we made a line speakers called Rock Boxes, We didn't call it thermal compression, but we did talk a fair amount about voice coil temperature rising and increased resistance. So in short, my guess seemed correct that you teach how to use your speakers to get the most out of room interaction with their placement. In my current speakers, an mtm, they are mirror imaged. I rear ported the ports in at an angle for the sole purpose of experimenting with how the speakers would react to room interaction. It clearly makes a difference. Not a world different from making a low qtc in a sealed box design to properly interact with a room. Obviously alot tougher with a ported box, but I love the variable port idea.
Thanks for your thoughts and good listening, Tim

Duke, some of us are not so enamored with the sound of most loudspeakers with ported bass.

Wes, absolutely! :-)

The Aerials use a 10" woofer, and that damn port. The midbass has a 15" driver and the bass uses an 18" driver.

I understand that field coil works the best down on the low side. Some say it is the best bass possible. I haven't been fortunate to hear this yet, but I've heard that it is fast, dynamic, and detailed. And way above my paycheck. :-)Dan_ed

Dan,
Precisely what i had suggested , multiple drivers is the way to go IMO, i have no doubt in what you have described, have fun ...

regards,

01-27-11:
Hi Unsound,
Its all perception my friend.
I think of low as 82 to 86
mid as 87 to 91
mid-high as 92 to 94
high as 95 + -Timlub

I would be in agreement here and efficiency mean different things to different topologies, a linesource for eg, 88 db would be very efficient IMO with a linesource after factoring the typical 9-12ft listening distance .

Duke , it does seem to me that you are discussing speakers designed for corner placement, if not how would this apply when speakers are setup and voiced away from the walls.

regards,