ProSoundWeb Community

Sound Reinforcement - Forums for Live Sound Professionals - Your Displayed Name Must Be Your Real Full Name To Post In The Live Sound Forums => SR Forum Archives => LAB Subwoofer FUD Forum Archive => Topic started by: bharat bhushan on August 31, 2009, 12:20:23 AM

Title: twin 15'' push pull
Post by: bharat bhushan 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
Title: Re: twin 15'' push pull
Post by: Art Welter 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.
Title: Re: twin 15'' push pull
Post by: bharat bhushan on September 05, 2009, 10:42:26 PM
thanks Mr.Art,
does anyone has plans for this type of sub,
Title: Re: twin 15'' push pull
Post by: Tim Padrick 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?