So I have several questions I'm hoping you guys can help me out with.
My current setup:
Martin Logan Motion 4i (Left / Right)
Martin Logain Motion 8i (Center)
Martin Logan Dynamo 700W (Sub)
Denon AVRX1400H (Receiver)
I just picked up the sub a few days ago and I'm running into several issues. The first issue is its just damn loud. Even at 30% Volume from the back of the sub and doing -8 on the AVR volume control it still shakes the floors. Needless to say the neighbors aren't very happy below me. I'm still trying to get it dialed in but so far I'm not sure I'm real happy with it.
I started browsing on bestbuy (yea i know nobody likes bestbuy but I can get 0% interest for 2 years) and came across several def tech floor speakers that get as low as 20hz. I am wondering if these floor speakers (I do really want floor speakers so I can move the ML Motion 4i to the rear for surround sound) produce enough bass to where I don't need a sub but wont be shaking the hell out of my apartment (viewing room if u can call it that is roughly 16' x 14' but part of that is the kitchen. Couch is roughly 8' away from speakers / tv.). But I also don't want to lose anything as far as sound goes. My ML Motion 4i for how small they are, are quite impressive. I'm curious of these few speakers would do the trick to allow me to eliminate the sub but still have some punch just not earthquake like booms.
I'm looking at the following def tech speakers
BP6B $399.99 each (minimum frequency 25hz)
BP10B $599.99 each (minimum frequency 20hz)
BP-9020ST $519.98 each (minimum Frequency 30hz)
BP-9040ST $719.98 each (minimum Frequency 29hz)
Now for the next part. Will mixing Martin Logan center and rear speakers with Def Tech sound like crap or will it work ok. I was looking at Martin Logan floor speakers but they only go down to like 40hz which while better than what I currently have (Motion 4i L/R speakers are 70hz - 23kHz) it still seems like those are geared more toward music than 4k UHD Blurays.
Also obviously the BP-9040ST are better than the others however if what I'm trying to do can be accomplished without having to drop that much cash it would be ideal. I'm also curious and can't figure out how the BP10B can get all the way down to 20hz when the 9020 and 9040 with powered subs can only do 30hz and 29hz respectively.
I'm also curious about powered subs being in the same box as the speakers any pros / cons on that? Trying to figure stuff out but the more I dive in the more questions pop up. Honestly just want to be able to watch 4k UHD Blurays and have it sound good without shaking my house or sounding crappy.