Your experience of moving to two subs


Hi all, I have a 2.1 system with the sub sounding best in the center between the loudspeakers. My speakers have substantial, deep, and detailed bass for their size and with the SS amp I’ve chosen. Thus, the sub’s optimal crossover setting is only at about 28hz. I have plenty of bass amplitude going on -- don’t need "more" bass.

I’m wondering about soundstage effects of having two subs on the outsides of my speakers, though. Having my sub in the center does result in some apparent compression of the low frequencies towards the low-center area. The L and R channels from my preamp are combined at my sub. I know some people may disagree and think that the source of frequencies below 60hz can’t be located by human hearing, but my experience tells me differently.

Does anyone have an opinion on the benefits of 2 subs vs only 1 when there’s no need for more bass oompf?

128x128gladmo

Showing 6 responses by soix

It pressurizes the room more evenly and helps avoid or minimize in-room bass anomalies.  Plus, each sub doesn’t need to work as hard to produce the same bass.  I don’t know anyone here who prefers one sub compared to two, so take that for what it’s worth.  Best of luck. 

It’s funny.  I had a good sit down with Alon Wolf where I argued that using subwoofers to augment the lowest octaves of bass has advantages over trying to achieve 20Hz and lower bass within one cabinet, not the least of which was room integration and speaker positioning issues.  At that time, about 10 years ago now, he was adamant that subwoofers won’t work because they fail on producing an accurate impulse response and he proceeded to sketch me graphs on a napkin to show me why this was so.  But now that Magico sells their own subwoofer either Magico has solved that equation or have conceded that the advantages of well-implemented subwoofers outweighs a perfect impulse response.  My guess is that Magico customers were asking for subs and Alon is just adding a product to fill this demand, but I’d love to hear his rationalization when he so vehemently argued they couldn’t be implemented accurately.  So it goes. 

Heh heh.  I’m with ya man, and maybe that’s why Alon finally saw the light.  If Wilson uses subs with their Alexandrias, well…
 

 

Rhythmik makes awesome subs and I hope the SB2000 (that I also own) can keep up.  My guess is it will and that once you get both subs dialed in you’re gonna reap sizable benefits.  Keep us posted!

Thanks so much for the update. As a fan of Rhythmik subs and an owner of an SB2000 (for home theater only) I especially appreciated your observations comparing the two subs — most enlightening! Glad to hear you found benefits in using two subs, and I’d love to hear your thoughts once you get the second Rhythmic set up and dialed in. I have no doubt it’s gonna be great and color me a little jealous, and there will be a pair of Rhythmik subs in my 2-channel rig as well at some point.