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Multi-Way Conventional loudspeakers with crossovers

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Old 31st August 2003, 08:30 AM   #1
rabbitz is offline rabbitz  Australia
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Default Simple answer required for a simple question...

When using 2 woofers in parallel the combined impedance is halved. Which value do you use for the crossover design calculation? The single woofer (eg 8 Ohm) or the halved value (eg 4 Ohm). Can't find a direct reference to this in the Loudspeaker Design Cookbook.
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Old 31st August 2003, 09:11 AM   #2
Vikash is offline Vikash  United Kingdom
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If the xover is going to see 4 ohms, then it would seem intuitive to work with 4 ohms regardless of the individual driver resistance.

I've yet to build an xover though, so wait for confirmation on this
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Old 31st August 2003, 09:36 AM   #3
subwo1 is offline subwo1  United States
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That is right. Make for a 4 ohm load.
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Old 31st August 2003, 10:03 AM   #4
rabbitz is offline rabbitz  Australia
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Smile Thanks......

Thanks guys. Much appreciated. It's one of those simple things I haven't been able to find by searching this site or the web.
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Old 31st August 2003, 10:05 AM   #5
subwo1 is offline subwo1  United States
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Best Wishes.
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