Subwoofer Question


I currently have a Martin Logan Balanced Force 210 sub paired with Dynaudio Contour 3.4 LE speakers and a Prima Luna HP Dialogue integrated amp.  My listening space is fairly small (listening position is about 11 feet from the speakers.  The nature of the room only allows me to place a sub in the front corners of the room near the speakers so I can really only have two subs.  I have been toying with the idea of selling the ML and replacing it with dual subs, one in each front corner.  One particular sub I have been thinking and reading about is the REL t9i.  Why am I thinking about this? No other reason than the itch to tweak but certainly also to improve.

I would greatly appreciate this board’s thoughts and insights.

Thanks,

puppyt
Ag insider logo xs@2xpuppyt
I can assure you that one sub will work seamlessly in some setups. I may just be lucky.
Hello puppet,

     As millercarbon stated, I also agree that you will attain the best bass quality utilizing 4 subs, even in a small room.  In fact, 4 subs will actually make your room seem larger and you’ll also notice improvements in the sound stage imaging and size.
     I know of another Audiogon member, hleeid, who had a small office with very limited floor space for 4 subs.  He purchased the Audio Kinesis Swarm 4-sub bass system and the AK owner, Duke Lejeune, detailed how to locate one of the four subs on the floor and the other three subs off the floor supported on shelves.  Each sub is relatively small and light, at 12”x14.5”x28” and 40 lbs,with a 10” aluminum long-throw woofer in each sub.  They have a rated bass extension down to 20 Hz +/- 3 dB.       The price is about $3K, including the 1,000 w class AB amp/control unit to power all 4 subs.  I’d suggest you call or email Duke to discuss.  Or, you could pm hleeid and ask him about it first.

Tim
If you were to do an in home comparison with your ML you'd most likely find the Force 210 out performs the T9 in many ways.

The connectivity alone allows for XLR and RCA inputs as well as a Multi-Output that facilitates daisy chaining most any other subwoofer with a compatible input. 
Of greater importance would be the ability to use ML's PBK equalization kit.

In my experience using four powered subwoofers in three different homes, simply using four subwoofers is NOT a panacea for low frequency equalization. You may even find, as I have, that two crawl test positioned subs satisfactory. 

With the limitless system, room, and personal taste variables each of us will have differing goals and results. Take it slow.

Doesn't the Swarm include a fundamental parametric equalization adjustment?

Good luck and have fun.    
" Doesn't the Swarm include a fundamental parametric equalization adjustment?"


Hello m-db,

     The AK Swarm and Debra DBA systems both use the same Dayton SA-1000 sub amp/control unit.  It has very limited equalization functionality, I believe mainly to mitigate the effects of floor to ceiling slap echo.  
     I've never felt a need for any PEQ adjustments in my room but I've read about other 4-sub DBA users utilizing separate PEQ and DSP components with claimed positive results.

 Tim

I have a REL S5 SHO, and it blended perfectly. I almost went for the ML balanced force, but after reading rave reviews about similar REL performance AND its ability to blend I went with the REL. Its amazing how much it added to my system. You can't hear a thing directly from it but the size and power of the music, increased dramatically. 
I should have done it years ago, but way back, subs sounded fat, slow and sloppy to my ears. Not anymore.