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TOPIC: Integrating sub with large main speakers

Integrating sub with large main speakers 1 year 6 months ago #24490

  • mackman
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My current system is a DDRC-22C feeding into an integrated DAC/Amp with my powered sub connected to the same speaker level outputs as my mains. According to the specs for my main speakers, the recommended low pass frequency for the sub is all the way down at 30Hz so my sub ended up not really doing much for most music. I am wondering if I should move the crossover frequency up higher to shift more load to the sub, possibly reducing some load on the mains. Unfortunately given they are both connected to the same speaker level outputs, the first thing I can think of to accomplish this would be to turn the sub's volume up and then have Dirac reduce the gain on those frequencies so the main speaker is quiet at those frequencies and the sub is at the appropriate volume.

So my two questions are:

1. Is it worth trying to shift the crossover up and move more load to the sub?

2. Is cranking up the sub and then relying on Dirac to attenuate those frequencies back to where they should be sane?
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Integrating sub with large main speakers 1 year 5 months ago #24507

  • john.reekie
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That's an interesting idea. Why not try it and report back?

The other way you can think about it is as the two speakers and the sub together creating three bass sources to load the room. In that case, "Method B" in this app note may be helpful: www.minidsp.com/applications/home-theate...on-with-the-ddrc-88a
I am not miniDSP support.

"You must ask the right questions." - Dr. Alfred Lanning's hologram.
-> Have you read the User Manual??
-> Have you drawn and posted a diagram?
-> Have you posted a screenshot?
-> Have you posted your config file?
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