Home » Audio » Speaker » Small speaker flanking sub limitations.
Re: Small speaker flanking sub limitations. [message #83814 is a reply to message #83791] Sat, 29 October 2016 03:58 Go to previous messageGo to next message
jonone is currently offline  jonone
Messages: 67
Registered: October 2015
Viscount
Thanks Wayne!
Do you have a recommendation on crossover slope? I've been looking at some pro units but there all fixed 24db I did find one that was 18db.
AV amps seem to be 12db on the speaker side and possibly 24db on the subwoofer side?
Obviously something like the mini dsp will give me options.
Re: Small speaker flanking sub limitations. [message #83815 is a reply to message #83791] Sat, 29 October 2016 08:45 Go to previous messageGo to next message
jonone is currently offline  jonone
Messages: 67
Registered: October 2015
Viscount
Just been thinking and looking at my AV amp, seems I could run the flanking subs from the surround/surround back pre outs and it lets you have fronts small with crossover and surrounds large, you can set the appropriate delays and run it in 7 channel stereo mode.
I think this would work for a music only 2 channel setup with flanking subs and distributed subwoofers.
The problem comes with movies and the surround channels are coming from the front, so you would have to either switch the flanking subs off or do some cable jiggling pre film???
Re: Small speaker flanking sub limitations. [message #83816 is a reply to message #83815] Sat, 29 October 2016 10:30 Go to previous messageGo to next message
Wayne Parham is currently offline  Wayne Parham
Messages: 18669
Registered: January 2001
Illuminati (33rd Degree)

I've had best results with low-order slopes. Second is what usually works best for me but I've even run first. I'll run third-order if I must, but that starts to be less effective. Fourth-order and higher are definitely harder to work with.

The balancing act is blending without going too far out-of-band. We want to have gradual fading with plenty of overlap but we don't want either subsystem to be run too far out of its band, e.g. subs run too high or in some cases (like the one you're describing in this thread), mains run too low.

Re: Small speaker flanking sub limitations. [message #83817 is a reply to message #83791] Sat, 29 October 2016 10:46 Go to previous messageGo to next message
jonone is currently offline  jonone
Messages: 67
Registered: October 2015
Viscount
I know you don't normally filter your mains but would you run the same type of slope on the mains and the flanking subs? I.e both 12db lr or Bessel?
Re: Small speaker flanking sub limitations. [message #83832 is a reply to message #83817] Sun, 30 October 2016 11:07 Go to previous messageGo to next message
Wayne Parham is currently offline  Wayne Parham
Messages: 18669
Registered: January 2001
Illuminati (33rd Degree)

Not necessarily. We're not expecting summing like we would in an anechoic environment, e.g. outdoors or in a very large room.

Re: Small speaker flanking sub limitations. [message #83836 is a reply to message #83791] Sun, 30 October 2016 14:05 Go to previous messageGo to next message
jonone is currently offline  jonone
Messages: 67
Registered: October 2015
Viscount
So what ever gave the flattest response then?
Re: Small speaker flanking sub limitations. [message #83840 is a reply to message #83836] Mon, 31 October 2016 08:30 Go to previous message
Wayne Parham is currently offline  Wayne Parham
Messages: 18669
Registered: January 2001
Illuminati (33rd Degree)

Yes, that's right. The flattest response over the widest listening area.

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