Crossover! The construction

It looks like the cabinet for the woofer will be about one cubic foot (30 litres) , sealed.

If the woofer is stated as 8", I'm assuming there will be another inch or so including the frame - there's no mounting information in the product description. So, 9" plus the distance from the edge of the woofer frame to the cabinet edge, say 2" each side for strength?

Therefore, let's say the cabinet needs to be around 13" wide, does that sound right?

Geoff
 
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The SPL of the Falcon XS 400 10" woofer is quoted as 87 dB/W/m.

I know you are aware that for a 3-way system the bass unit sensitivity needs to be higher than that of the mid driver, otherwise the mid driver will need to be attenuated.

What I am suggesting is that the degree of attenuation in dB required for the mid in your particular case would best be determined by experiment after you have built the system.

Actually, life would be so much easier if you were to use variable L pad controls on both tweeter and mid instead of fixed L pad resistors.

Here is an example from a UK supplier: https://willys-hifi.com/collections/l-pad-attenuators/products/4-ohm-l-pad-attenuator-50-watts

Do you have access to 4 ohm L pad controls in your location?

EDIT: The downside is the added expense!
 
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I bought exactly these values of wire resistors

You are referring to your projected choice of L pad attenuating resistors: 1.5 Ω and 6.8 Ω for tweeter, plus 0.47 Ω and 33 Ω for mid driver.

It's been a while, so to recap:

Quoted woofer sensitivity = 87 dB/W/m
Estimated mid driver sensitivity = 89 dB/W/m
Quoted tweeter sensitivity = 91 dB/W/m

As indicated in post #35, Rs = 1.5 Ω and Rp = 6.8 Ω will attenuate the tweeter by around 4 dB and the mid driver may not require attenuation.

Have you actually BUILT anything yet? :scratch2: