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Multi-Way Conventional loudspeakers with crossovers

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Old 17th June 2009, 07:40 PM   #1
ivorthedj is offline ivorthedj  United Kingdom
diyAudio Member
Join Date: Jun 2009
Default Some information please

Hi Everyone,

I have aquired some old Seas Kit303 loudspeakers and although i have the brochure i need details of the crossover.

Does anyone have a schematic?

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Old 18th June 2009, 12:49 AM   #2
PeteMcK is offline PeteMcK
diyAudio Member
Join Date: Feb 2002
Location: Western Sydney
Some data & crossover frequencies here:
if you have the model numbers you may be able to find individual driver parameters here:

that would be enough info to get a basic crossover together, but if these are old drivers you’re best to measure them anyway, their parameters have probably changed over the years
Impedance varies with frequency, use impedance plots of your drivers and make crossover calculations using the actual impedance of the driver at the crossover frequency
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Old 18th June 2009, 02:00 PM   #3
ivorthedj is offline ivorthedj  United Kingdom
diyAudio Member
Join Date: Jun 2009
Thankyou, i have the brochure that you mention and am in contact with Troels whch is why i need the data for the crossover.

A little more information..the kits are working well but the bass drivers were not original and after speaking to Troels he suggested a replacement. Although these seem ok, i feel i need to change values slightly on the crossover and to do that i would need the inductor values, although i guess i could measure them?

Anyway thanks for your help.
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