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Richard Moon 28th January 2003 02:40 PM

Xover for 9900 & 8545

I am planning to install SS 9900 + 8545 to the front door of my car.

I searched this forum, but I found some design for other units.
or 2.5 way.

I need 2 way XO design.

Any design or opinion will be helpful.

Milzie 29th January 2003 01:50 AM

mounting them in the door of your car opens up a whole big can o worms. Enclosures are usually incorporated into the design of a crossover. By mounting them in a car door, you may get some nasty resonances or peaks that may need to be tamed with the crossover. Best thing to do is get them in the doors of your vehicle, take some measurements, and builed the crossovers based on the measured values.

I know this doesnt really help much.

Richard Moon 29th January 2003 12:08 PM

Thank you for your advice.

I just want to see the examples which I can get some ideas.

But I don't have any measurement system. So I must do it by my ears.


kelticwizard 29th January 2003 02:28 PM

2 Attachment(s)
Here is the crossover schematic for the ScanSpeak Reference Monitor, which uses the two drivers you have:

Here is the page for all the drawings of the Reference Monitor

Spacing between the center of the woofer and the center of the tweeter can affect the response of a crossover. The spacing here is 6 5/8", or 167 mm. Of course, in a car, you cannot control such things, but if the spacing in your vehicle is anything near that, especially less than that, you should be okay.

PS: the above links were originally found by our member Softman and posted in the following thread:

Anyway, good luck!

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