Subwoofer question


I read in an older thread in which someone was describing how a "swarm" sub system was being installed, that the individual subs were placed close to the wall and facing the wall. This last part triggered my question which is:

What is the rationale behind facing the subs toward the wall?

Many thanks, Fred

 

 

 

 

 

 

fred_s

I’ve been singing the praises of the Audio Kinesis Swarm/Debra distributed bass array systems ad nauseam ever since I began using one in my system about 3 yrs ago.
I had no idea that you’re so familiar with the virtues of the Swarm subwoofer system and that you’ve used it at some shows.

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AudioKinesis The Swarm Passive Subwoofer System

Again Swarm is a name brand, Swarm, Debra are a type of sub that is small, NOT large and uses the boundaries of the room and facing the wall to increase and also standardize a drop and plop type of listening. It just works. -3db 20hz

DBA is a concept that also encompasses, the AutioKinesis swarm and James Romney’s Debra, Passive subs.

1. They are not powered, they are passive subs.
2. They are smaller cabinets and smaller drivers, and 1-1.5cf cabinets or less.
3. They use the boundaries to reinforce the sub signal.
4. 4 not 44 or 5 or any other number 4 FOUR.
5. DBA (which is an idea) can use 2 large or 15 small ones, they just can’t occupy the same space, they are distributed. LOL
6. Debra is James Romney’s concept bass speaker system. They are HIS speakers not any speakers to comprise HIS Debra, (4 low rider passive subs, cabling and 2 remote power amps. Usually Dayton 1000 watt A/B bass amps.)
James employees a simular but slightly different cabinet construction. YES it make a difference. Not just any old sub will work..

Words Count.. BTW after they Break-in (not burn in) they sound better. I’m a pretty serious bass head. I been looking real hard at 21" active drivers with 2 18" passive radiators in 20 cubic foot 2.25" thick 60" tall cabinets. I made 2 of those columns.

I bet 2 will work just fine in a 800sf shop. It’s DBA, not anything else.

I make a personal product called SAT and Harp. Stack and Test SAT. Harp is an inline speaker cable quick change concept. You can add or subtract up to 20 different alloys to the cable construct quickly, series, parallel or both, Harp!

Someone else might call it jambalaya with red beans and rice. That’s not what it is..
Harp, SAT..

Swarm
Debra
RELs Bass Arrays
OHMs Bass Arrays..

All different names, all DBA

Regards..

I keep yapping about ’stereo pairs’ of subs, front facing, no ports, locate adjacent to mains: giving/preserving bass directionality, by virtue of both the fundamentals and overtones of those fundamental notes.

Some of the best statement systems have front facing subs or woofer towers for the exact reason you mention (it works better). I will never sell my Infinity RS1B woofer towers...unless maybe for a set of Genesis woofer towers.

@russ69: As a fellow owner (former in my case) of the RS-1b loudspeaker, let me recommend you try to hear one the Rythmik servo-feedback subs, which replaced the 1b woofer towers in my system.

Statement systems have great big front facing subs because they are statement systems. Music systems not trying to make a statement put the subs asymmetrically different distances from corners because they are more about the sound than the statement.

I would say it is like race cars have wings so guys put wings on their Camry because: race car. Except wings on race cars actually work. Stacks of front facing subs are there because they look good. Audiophile expect it. And it is way easier to give audiophiles what they expect than educate on what actually works.

Case in point, 20 years after DBA and still hardly anyone gets it.

+1 bdp24. Same here I used Infinity servos for a long time. Rythmik is on top of the servo game. There is a little bit of a supply issue as of late but, well worth the wait or step up or down in your plate amp choice.. The best I've ever found. NO they don't work with other subs at all, defeats the whole purpose of using servos. One or the other not both. It's like using a fixed port with a passive radiator one or the other. Conventional subs with correction or not, just a different animal, Swarm, DBA I don't care it's different than a GR or Rythmik servo system.

You can DBA GRs no problem, they been doing that for 6 year at least. Doubles, Triples or Quad towers. Milti-placement to smooth the bass. Pretty amazing actually. Not cheap and it does take a little work just to get to primer.. Well worth it for the best of the best.

No I don't sell or make money from their stuff.. Sure like it though..:-)