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Author Topic: twin 15'' push pull  (Read 3001 times)

bharat bhushan

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twin 15'' push pull
« on: August 31, 2009, 12:20:23 am »

hi all,
      want to build twin 15'' push pull subs ,,what are the benifits of push pull design over other designs.
pls send plans if anyone have.
                     thanks in advance
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Art Welter

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Re: twin 15'' push pull
« Reply #1 on: August 31, 2009, 03:16:25 pm »

Push pull reduces distortion caused by suspension nonlinearitys.
The speakers can be oriented side by side, and offset to line up the drive point, or put in a small chamber, the cone of one facing the magnet of the other.
When put in a small chamber, the chamber causes a HF roll off, further reducing distortion.
The small chamber also reduces the exposure of the cones to weather and physical damage.
The push pull slot allows a smaller cabinet front than side by side or vertical mounting, so increased cone density and less interference can be achieved.
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bharat bhushan

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Re: twin 15'' push pull
« Reply #2 on: September 05, 2009, 10:42:26 pm »

thanks Mr.Art,
does anyone has plans for this type of sub,
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Tim Padrick

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Re: twin 15'' push pull
« Reply #3 on: September 13, 2009, 03:28:17 pm »

Art Welter wrote on Mon, 31 August 2009 14:16

Push pull reduces distortion caused by suspension nonlinearitys.


At the levels they are likely to be used, will a reduction in distortion from 50% to 30% really matter?
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