B&C 12PE32, what to do with it

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arcgotic

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Joined 2004
demerzzel.blogspot.com/
I went with Overkill Audio's suggestion, small sealed box.
Here is the response in room at 1m aprox, no filters. Sweep 60-8k.

I have 18" open baffle bellow, crossed at 120hz, and the sealed 12PE32 is crossed at 80hz. LR4. And upper cross point is 1500Hz to DE250 in RCF H100 horn.

It sounds good! Thanks all for suggestions!
 

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silverprout

silverprout

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Joined 2008
arcgotic said:
I went with Overkill Audio's suggestion, small sealed box.
Here is the response in room at 1m aprox, no filters. Sweep 60-8k.

I have 18" open baffle bellow, crossed at 120hz, and the sealed 12PE32 is crossed at 80hz. LR4. And upper cross point is 1500Hz to DE250 in RCF H100 horn.

It sounds good! Thanks all for suggestions!
Click to expand...

IMHO a bigger enclosure and a serie resistor will gives you a far better alignment, allowing you cover one more octave.
 
silverprout

silverprout

Member
Joined 2008
silverprout said:
You should choose your volume, then choose an alignment and its related Qts.
Here is the formulas in order to calculate Re :
Re=Res/(R0-1)
R0=Qms/Qts
Click to expand...

Sorry, it was a bad idea, it will seriously degrade the loudspeaker design performance.
You should keep the small box and stay above 200 Hz.

Edit : i wouldn't use a xover point under 250 Hz (the optimal point is over 300Hz)
 
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