SLA Pro crossover

Short and Transmission Line Arrays for Pros
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tvent
Posts: 85
Joined: Sun Sep 26, 2010 4:29 pm
Location: Helena, AR

SLA Pro crossover

#1 Post by tvent » Tue Nov 27, 2018 11:15 am

I just noticed that the cap/coil values for the SLA Pro's are different from the other piezo variants I've built from here in the past in other box designs (all have been melded arrays.)

I'm not exactly sure what goes on with the piezo crossovers compared to more traditional 6/12/18/24 per octave crossovers so I'll just ask: what is the corner frequency in the SLA Pro's and is anything else going on with it regarding any boosts or cuts in the response?

Thanks,
Tim
Built:
4 x WH10 melded
4 x WH8 melded
2 x Jack15 melded
2 x Simplex 12 w/BGH-25 for Bass
1 x Simplex Tiltback (powered PPA800DSP) for Keys
2 x SLA Pro
Bought:
6 x T39 20" 3012LF loaded

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Bill Fitzmaurice
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Posts: 27418
Joined: Tue May 02, 2006 5:59 pm

Re: SLA Pro crossover

#2 Post by Bill Fitzmaurice » Tue Nov 27, 2018 1:14 pm

It's a higher crossover frequency, 3.5kHz, because the dispersion of the direct radiating woofers in the SLA pros is wide enough to reach that high with them.

tvent
Posts: 85
Joined: Sun Sep 26, 2010 4:29 pm
Location: Helena, AR

Re: SLA Pro crossover

#3 Post by tvent » Tue Nov 27, 2018 1:32 pm

Thanks for confirming Bill.
Built:
4 x WH10 melded
4 x WH8 melded
2 x Jack15 melded
2 x Simplex 12 w/BGH-25 for Bass
1 x Simplex Tiltback (powered PPA800DSP) for Keys
2 x SLA Pro
Bought:
6 x T39 20" 3012LF loaded

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