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Old 15th March 2010, 05:42 PM   #1
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Default help me to build a SUB amp and filter

want to build aSub woofer amp for eminence lab 12 6ohm driver. plz help me. also want a good filter.
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Old 15th March 2010, 09:08 PM   #2
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Is that sub for a PA system?
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Old 16th March 2010, 12:18 AM   #3
tomchr is offline tomchr  United States
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Aside from the 6 ohm load impedance, what are your specs? Desired power? Cross-over frequency? Want adjustability on that?

Something like this could be a good filter.

~Tom
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Old 16th March 2010, 05:55 AM   #4
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Originally Posted by pacificblue View Post
Is that sub for a PA system?
what is mean by PA system. I just want it to connect to my PC. Also Iam not an expert in electronics......
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Old 16th March 2010, 06:53 AM   #5
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Quote:
Originally Posted by tomchr View Post

Something like this could be a good filter.

~Tom
This one is a simple and best Sub filter. I had made a pcb for the same here. i can send u the PCB track layout that u can make at home.
And as far amplifier is concerned u can go for lm3886 or TDA7294(this one is easily available in india for ~100 Rs.)
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Old 16th March 2010, 09:45 AM   #6
pra3718 is offline pra3718  India
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Also Iam not an expert in electronics
Eight Band Sub-Woofer Equaliser This may not be easy for fresher. Take a look for project48

Quote:
eminence lab 12 6ohm driver
If I already purchased " eminence lab 12 6ohm driver " then I would think for Rod Elliott's 300W Subwoofer Power Amplifier (Project 68)

lm3886 or TDA7294 is not sufficient to run such a driver for me.
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Old 16th March 2010, 10:18 AM   #7
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my friend is interested in my eminence lab 12. what is ur openion? is it a good one or i sell it and purchase another one?
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Old 16th March 2010, 10:19 AM   #8
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If I already purchased " eminence lab 12 6ohm driver " then I would think for Rod Elliott's 300W Subwoofer Power Amplifier (Project 68)

lm3886 or TDA7294 is not sufficient to run such a driver for me.[/QUOTE]
where can I saw project 68?
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Old 16th March 2010, 11:14 AM   #9
pra3718 is offline pra3718  India
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where can I saw project 68?
300/500W Subwoofer Power Amplifier

As per my knowledge,

In subwoofer sound wave quantity first, and than quality. subwoofer job is creating thrill in movies/music. For that, lot-off cone movement is required. To lift the cone (12" driver) TDA7294 (60watt approx) may not be sufficient. My idea is you have already purchased eminence lab 12 6ohm driver then noting wrong to try for TDA7294 bridge. Amps cost should not be more than Rs.300.00. Project68 may be good amp for running such a driver.
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Old 16th March 2010, 11:44 AM   #10
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Hey, if you are new with electronics, i'll suggest Sub-Woofer Controller - for filter, its pretty simple , u can make the circuit on a general purpose PCB with in a budget of 60 Rs
and a chipamp based power amp...
Rod Elliott 300 W sub amplifier is a pretty big project. and with lm3886 or TDA7294, u can get easily >100 Watts power. (with 7294 u can get 100 Watts RMS)
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