2. speakers
  3. 148826-111843

My experience adding subwoofers to 2 channel

My Kappa 9 speakers are rated to 29hz and they sound pretty good in my 18x24 room...powered by McIntosh mc1.25 amps...l was looking for another layer of bass to enhance the sound..my first experiment l took my SVS pb16 ultras from my theater room and tried them first...it sounded terrible,didn't blend well..couldn't hear a difference until you turned in up then it rattled the room apart........my final experiment worked..l used 4 Velodyne minivee subwoofers(1000 watt rms class D sealed 8 in.) and after hours of calibration l hit it......lve got the bass response that exeeded my expectations. ....l should have done this along time ago....can anybody tell me of another subwoofer that may work even better?
vinnydabully

Showing 6 responses by bdp24

bdp24's avatar
bdp24
10,096 posts
 
@clio09, are you sure the $12,000 price is with the d-d amps? I stated that a few months ago in another thread, and you informed me that was incorrect, the $12k was for the panels and subs, the d-d amps were an added-cost option. If the price includes the amps, that is quite the bargain!
bdp24's avatar
bdp24
10,096 posts
 
@clio09, thanks for the correction and clarification.
bdp24's avatar
bdp24
10,096 posts
 
Music Reference now offers an ESL with the option of a direct-drive (no ESL transformer) OTL power amp. MR's Roger Modjeski designed the same for the original Beveridge, and has custom made some d-d amps for Acoustats.
bdp24's avatar
bdp24
10,096 posts
 
@noble100, I agree, you didn't state that you can't use four Rythmik subs in a swarm type system. Ya know what I didn't say? That you DID say that. Why do you think I think you think you did?
bdp24's avatar
bdp24
10,096 posts
 
All the Phase Control on the Rythmik plate amps is, is a delay circuit; it achieves the same end as physically moving the sub enclosure to a different location. 1ms (the control has millisecond markings) equals roughly 1’. The control can of course only move time in one direction, into the future. ;-)
bdp24's avatar
bdp24
10,096 posts
 
The plate amps in the Rythmik subs provide all the controls mentioned by @Noble100: volume, phase (180 degrees via a continuously-variable rotary knob), x/o frequency (40-120Hz) and slope (2nd/4th order), plus damping, a rumble filter, one band of PEQ, and both line level (RCA jacks) and speaker level (binding posts) hook-up. There is no reason four of them cannot be implemented as a swarm. You will however need four AC outlets. ;-)
More to discover