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Others experience re: subs and Magmepan 20

I have a pair of Magnepan 20r’s. Have enjoyed them for years. In my room they go to about 30Hz, response way down at 25Hz.

I am experimenting with a pair of Janis subs. This gets the response to about 25 Hz then down a lot at at 20Hz. It adds a little something but not I am not bowled. over. I hear and feel a bit (in my chest) on some music.

I would like to hear about others have experience with adding subs to nearly full range speakers?

Did you feel you got your money’s worth for "a few silly Hz"?

Thanks
imdoc
imdoc OP
17 posts
 
Perhaps one from Column A and one from Column B?
hifidream's avatar
hifidream
135 posts
 
I think it makes a huge difference to get those last notes about of the music, my wife says that she was surprised how much the subs helped. . . I have 20.1s and Kinergetic SW-800s amplified by a Pass x250 up front. I also have two super fast SVS-16 Ultras that work with my mini DSP/to do room correction and address those standing waves many people have mentioned. I make measurements with an Earthworks mic and REW and Multi Sub Organizer crunches the numbers that I enter into the DSP. I have 8 channels of DSP for my 2 Channel set up. I can't speak to doing this with less money or lower quality components. I believe you should match any sub augmentation with stuff of similar quality to the main speakers. With Maggie's they need to be non ported subs in my opinion to have more control and keep up with the panel speed. The coherence and imaging of my system is right on. I had some engineer friends over from work to assist me in installing my projector screen and they said that my neighbors should hate me. I told them I've never had one complaint. I turned the music up and they listened with mouths open. There was no boom just accurate involving full sound with pin point imaging. I took a long path to get here. I wish you luck on your quest ;)

-Steve
imdoc OP
17 posts
 

Reviewing Rhythmik or Salk (upgraded cabinets with same components) as option.

Anyone care to opine as to whether or not a 12" vs 15"  has inherent advantages for music (no movies) where max sound pressure at seat 100dB and usually far less?  I do have some space constraints and the 15" might be problematic physical wise.  12" is front firing and 15" downfiring and I don't know how to assess what this would do.

Also putting subs behind the Maggies *seems* like a bad idea as I envision the sub output pounding the Magnepan panels and modulating its output.  My thought was to put the sub beside the Magnepans.   Any opinions as to whether this is a real or imagined issue in real world?


Thanks

ddzstereo
84 posts
 
I have Martin Logan CLX and use a pair of Martin Logan Descent i subs with the CLX subwoofer filter added (the filter compensates for the low frequency roll off of the CLXs)  Integration seems to me to be seamless once the overall level of the subs are set properly.  They have 3 10 inch drivers facing 120 degrees apart and are self powered (2100W peak).  I don't hear the difference in sound between the subs and panels whether using solid state (Krell) or vacuum tube (ARC) to power the CLXs.

Rarely do I 'feel' the impact of the subs as I typically don't play my system at those levels.  As an aside, I remember when I first purchased the subs and had them running alone for break-in. to ensure I "loosened" them up, there were times when I had the volume on the subs set far above what turned out to be optimal level.  Objects in my listening room were rattling to the point of distraction, I thought I would have more work to be done on the room but as I turned out I never listen at those levels.

There are time when I wonder what the newer Balanced Force 212 would be like.

limniscate
241 posts
 
Duke really knows his stuff.  He came over to my apartment and we tried his SWARM system versus dual Rythmik F12G.  He helped me dial in my Rythmik subs and was very impressed with them.
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