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Old 27th February 2010, 05:29 PM   #1
naxxos is offline naxxos  Canada
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Join Date: Jun 2007
Default Ess ps8a

I want to improve upon the cross overs but I need a schematic. Would anyone know how I could find one? Thanks.
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Old 28th February 2010, 08:27 AM   #2
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2400hz 12db.
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Old 28th February 2010, 01:10 PM   #3
naxxos is offline naxxos  Canada
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Thank you el seven. I unfortunately do not know how to design a cross over. Could you suggest something like an already built one from a web store like parts express or would you have an example schematic on hand of the one you mentioned?
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Old 28th February 2010, 01:32 PM   #4
naxxos is offline naxxos  Canada
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Found a calculator on the WWW does this seem right? Second Order (12db/octave) Two-Way Crossover
Linkwitz-Riley Butterworth Bessel

High Pass Impedance: Ohms
Low Pass Impedance: Ohms
Frequency Hz

Top of page

12dB Crossover Diagram high pass C1 = F4.1458

L1 = mH1.0610000000000002


low pass C2 = F4.145833333333334

L2 = mH 1.0610000000000002
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Old 28th February 2010, 05:45 PM   #5
srinath is offline srinath  United States
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I just bought a heil complete with a whole cross over and much other stuff.
I will be able to tell you some info, but I have a damaged inductance coil in 1.
But, I may need this same help too.
Thanks.
Srinath.
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Old 2nd March 2010, 01:55 AM   #6
crzy8z is offline crzy8z  United States
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Location: Kentucky, USA
Don't know if this one will be helpful. It's a page out of a manual I ordered from ESS years ago for the AMT 5, which may have used a similar HF unit (Power Ring). It was an updated schematic which had the latest crossover modification, raising the cutoff freq slightly for better power handling.


Click the image to open in full size.
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Old 29th March 2010, 02:22 AM   #7
naxxos is offline naxxos  Canada
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The crossover in my ESS 8 Speaker. 22uf for the high pass, 5uf for the low pass.
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File Type: jpg Ess 8 cross over.jpg (73.0 KB, 126 views)
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