Dual Sub-woofers paired into two sets of speakers - connection option.


I have 2 sets of speakers connected to my power amp A and B speaker outputs.

I also have two SVS SB1000 pro sub woofers hooked up to my pre-amp mono sub out with a RCA Y-splitter.

The subs have speaker level left and right input.

I would like to hear the supposed advantages of stereo subs.

Would it be feasible instead of using the mono sub out to connect from each speaker to one of the sub speaker level in inputs? Speaker A would go to sub speaker level Right input, Speaker B would go to sub speaker level Left input.

This way I can still switch listening from Speaker A or B and still have subs.

Would I run into any problems if I had both speakers A and B active at the same time? (I'm inclined to think its OK as the sub speaker level Left and Right are designed to both take a signal at the same time if hooked up to just one set of speakers).

I'm thinking I'm OK but I'm always overly cautious when wiring up something that is unusual.

Thanks in advance to those more experienced than I.

Rob

tunehead

Showing 3 responses by tunehead

@livinon2wheels Thank you for your very thorough response. Maybe a little over my head but I do get the gist of it. Really just want to know if I am opening up the possibility of damaging anything (as @loomisjohnson  noted, possibly if running both A and B at the same time). I'm just curious and will try with just one speaker set. I was of the understanding that connecting a sub up to the speaker level input from the main speaker yields a more coherent signal a it is the exact same signal as the speaker see's but presents virtually no extra load, the sub still does the power amplification and cross over processing. Yes, try it and listen. My ears will tell me. I like experimenting.

@loomisjohnson 

Thank you for your response,

My power amp is a Parasound 2350 class D, 600 watts x2,

  • 350 watts x 2 @ 8 Ω
  • 600 watts x 2 @ 4 Ω or 2 Ω

Minimum Speaker Impedance (Output A+B)

  • Stereo or Mono Mode: 2 Ω 

I like to experiment, but am very cautious. I was of the understanding that connecting a sub up to the speaker level input from the main speaker yields a more coherent signal being the exact same signal that the speaker see's but presents virtually no extra load, the sub still does the power amplification and cross over processing. Am I correct on that? Think I'll try with just one speaker set and let my ears inform me.

Thanks to all.

@audiorusty Thank you for that. I’m now feeling more like this experiment is not going to yield any appreciable gain. To that, I did hook up one set of speakers (speaker A) from the speaker binding posts to each sub and did not hear any difference. It was an experiment I was interested in for awhile since I purchased the dual subs. Now I know for my self and my own ears.

I did not hook up the second set of speakers (speaker B) to the same dual sub’s as I am now convinced I will get no advantage, just possible loading problems.

Thanks to all again who replied, you knowledge and in insight is much appreciated.

 

PS: I did contact SVS but have not heard back.