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Multi-Way Conventional loudspeakers with crossovers

Designing a closed cabinet for the Eminence Beta 12CX
Designing a closed cabinet for the Eminence Beta 12CX
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Old 14th September 2018, 12:22 AM   #21
Grymer is offline Grymer
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Originally Posted by Galu View Post
Don't take too long thinking.

Next year and your move to university are rapidly approaching!
Haha. "Think about it" as in - I'll order the parts Monday-Tuesday next week, and I'd think about it till then, but actually. I'm settled on the Beta-12CX. Look at the nice pictures I've taken of my Sketchup file
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Mixing on the wrong channel. Still hear the difference. Good I have placebo.
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Old 14th September 2018, 12:26 AM   #22
Galu is offline Galu  Scotland
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i know the dizzy thing . . .
Sorry to hear that. It's simply variations in blood pressure that affect me.
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Old 14th September 2018, 12:31 AM   #23
Galu is offline Galu  Scotland
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Originally Posted by Grymer View Post
Look at the nice pictures I've taken of my Sketchup file
Didn't see your pics till after I posted.

Nice design work - now go translate it into reality!
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Old 14th September 2018, 12:55 AM   #24
freddi is offline freddi  United States
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Designing a closed cabinet for the Eminence Beta 12CX
is it ok to drop battery voltage a "few" volts with series.paralleled diodes? (I'd like to run a little amp off a 20v drill battery)
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Old 14th September 2018, 06:19 AM   #25
tmuikku is offline tmuikku  Finland
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Heads up, I think your setup will be just fine. I've got 12cx in ~30 litre cabinets and two Lab12 sealed 30litre subs, sure jab2 and jab3 as amps (2x40W+100W) with 19V psu so not that much amp power available. Had a party a week ago and it was just enough volume for us 30-40year olds Windows were rattling in the living room and conversation was possible in other rooms.
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Old 14th September 2018, 01:30 PM   #26
Grymer is offline Grymer
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Originally Posted by freddi View Post
is it ok to drop battery voltage a "few" volts with series.paralleled diodes? (I'd like to run a little amp off a 20v drill battery)
Amps using the TPA3116D2 can do 4.5-26v. The voltage will drop. In my case it will go from 50,4v to 43,2v. I have no idea how a drill-battery works. Not even sure if there is a built-in BMS (Battery Management System). <- Basically monitors the battery and cuts connection if battery is low-voltage.

But an amp using the TPA3116D2 will definiately do a 20V battery :P

Remember using a fuse so you don't fry the system haha
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Old 14th September 2018, 01:55 PM   #27
Grymer is offline Grymer
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Originally Posted by tmuikku View Post
Heads up, I think your setup will be just fine. I've got 12cx in ~30 litre cabinets and two Lab12 sealed 30litre subs, sure jab2 and jab3 as amps (2x40W+100W) with 19V psu so not that much amp power available. Had a party a week ago and it was just enough volume for us 30-40year olds Windows were rattling in the living room and conversation was possible in other rooms.
Haha. There's a turning point in life. The age where you'd like sound levels that give you tinnitus, and the age where you like sound levels that don't

And sweeeet setup! And yea - I won't be cranking it to 300w whilst indoor haha

BLACK: Tham12 - 12FH500
GREY: 30L sealed - LAB12

Corner-placed. Both get a total of 1w.
Click the image to open in full size.

I don't doubt those LAB12's sounded brilliant! Would like to hear that setup.


Using ADAU1701 I'll add psycho-acoustics to achieve sound below 47hz
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Mixing on the wrong channel. Still hear the difference. Good I have placebo.

Last edited by Grymer; 14th September 2018 at 01:57 PM.
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