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Old 25th November 2005, 02:40 PM   #1
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Unhappy Anybody have a Bass Booster schematic?

Hi there,

I need a electronic circuit to increase my bass sound. Someone pls help me. Does it got to do with cut-off frequency theory?

Thanks
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Old 26th November 2005, 08:06 AM   #2
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Default This do not boost...just makes the opposite..attenuates the trebles and mids.

And simple and passive...not exactly what you want...but may be helpfull to someone......maybe.

regards,

Carlos
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Old 26th November 2005, 01:04 PM   #3
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Thanks Carlos! i appreciate that alot! thanks thanks.
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Old 26th November 2005, 01:54 PM   #4
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That is a lowpass filter, what you want is a amplified peak between 40-60hz or so. best way to do this is getting a sub with adjustable xo point and bass boost.
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Old 26th November 2005, 02:00 PM   #5
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Quote:
Originally posted by Tekko
That is a lowpass filter, what you want is a amplified peak between 40-60hz or so. best way to do this is getting a sub with adjustable xo point and bass boost.
how to do it?
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Old 26th November 2005, 02:03 PM   #6
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Default Re: Anybody have a Bass Booster schematic?

Quote:
Originally posted by bryan315
Hi there,

I need a electronic circuit to increase my bass sound. Someone pls help me. Does it got to do with cut-off frequency theory?

Thanks
try parametric and sub woofer equaliser at ESP site.good ckt
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Old 26th November 2005, 02:45 PM   #7
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http://headwize.com/projects/showfil...=equal_prj.htm
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Old 26th November 2005, 08:33 PM   #8
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Hi Bryan,

April 2005 SiliconChip had this "Bass Extender" project which may be of interest. Unfortunately it will cost you to read it all.

http://www.siliconchip.com.au/cms/A_104168/article.html

Regards

EDIT: This link has a bit more info.

http://216.109.125.130/search/cache?...icp=1&.intl=us
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Old 26th November 2005, 09:57 PM   #9
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a capacitor of say 0.01ufd in series with a resistor, one end connected to the output of the amp while the other end connects to the feedback point. as for the value of the series resistor you can try a value eqaul to the feedback resistor, you can increas or decrease as you go along.

this will increase bass at a loss of mid and highs, if this is acceptable to you.

this is the simplest way i can think of.
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Old 27th November 2005, 08:54 PM   #10
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Here's a decent solution that gives you complete control over what your circuit will do:

Download the program called filterPro from download.com. Instead of relying on other people's schematics of filters and such, you can make your own.

Start off by selecting a low pass filter. You can select you upper rolloff frequency (probably 100Hz or less-depending on your application) and the order of rolloff. The higher the order, the steeper the rolloff and the more complicated the circuit. I would recommend just second order for a bass filter. After this, it will show you a schematic based on your specifications. At the output of the schematic is you bass frequency. From here, you need yet another circuit. You will need a gain section. For this, you can use a simple single ended inverted amp. (google it and you can find basic schematics). In place of the resistor that ties to the inverted output, you would place a pot for volume control.

Both of these circuits can use the same op-amp (and on the same chip). I would recommend the LM741 though LM324 or others would suit the application. Just get yourself a 5V steady power supply and you're in business!

If this seems like too much work, let me know and I can supply you with an old schematic I've made.

~Aaron
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