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sync bass with subwoofer Answered

Hello, I thing this is the right /r/ to ask this. I have a HTiB and I want to make 2 led strips with ~6 meters blink with bass. I have done some tests with my old subwoofer (logitech z5500) and I noticed that as the bass goes deeper, I got distorsions...

I have read that we can use an amp to store energy (? :S) but it could start a fire due the heat. Can someone help me? Obviously I can use the leds directly conected to the subwoofer and dont turn the subwoofer volume to high and everything will be ok, but I really want to make something cool and safe.

The HTiB this an Onkyo HT-S9700THX, and the subwoofer is powered directly to current, the amp just pass signals. I thing this is called a pre-amp subwoofer, correct if Im wrong please.

Regards and thanks!

Discussions

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Downunder35mHelderN2

Answer 3 years ago

Of course you can simplify by just using the low frequency part of the circuit and discard the stages for the mid- and high- range.

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HelderN2Downunder35m

Answer 3 years ago

Hmm I see... My job is an IT but unfortunatly I never got electronic classes, so I'm pretty newbie on this project. As I said, I installed the leds directly to +/- of subwoofer and it worked very well, the only thing is distorsion, and Im searching possibilities to deal with this. Thanks!!

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Downunder35mHelderN2

Answer 3 years ago

Ok, let me help you out a tiny bit here:
Adding other things to your speaker system will affect the audio quality or in the worst case damage your amplifier.
If you want lights to work with the music you can and should use a dedicated and seperate circuit for this.
The Instructable I linked before uses the audio signal instead of a microphone and if reduced to the low frequency part the circuit is quite simple.
On the other side salvaging existing thing like this might be a good start too.
Can't be too hard to cut the plastic open and re-use the LED's around the speaker.
Other equalizer things based on LED's are out there too, so you might want to spend some time thinking out of the box doiing Google and Ebay searches ;)

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HelderN2Downunder35m

Answer 3 years ago

Hi, for example, http://ebay.eu/2aasMYa, I have 2 5meter led strips, Cool White only. Since it has only one color, it has only +/- wires. RGB uses 4 wires! Am I able to connect to this device? Second, to power up the device, do you thing this this AC Adapter can handle? http://ebay.eu/2avGdWV, its a 12vdc 2A.

btw, the led strips are those , http://ebay.eu/2aEx8Jy

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Downunder35m

3 years ago

Sorry but either you make it confusing or I just fail to see the connections here.
An amp does not store energy for starters.
And what do you mean by "goes deeper"?
How does all that relate to LED lights?
If you want flashing lights with music go back in time and check these simple light organ circuits ;)

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HelderN2Downunder35m

Answer 3 years ago

Hello, "goes deeper", low frequencies, bass... Because, those organ circuits uses microphones and I wont be able to light the leds up only when bass passes... I lights whenever the sound is turned on, bases on sensitivity offcourse! Do you understand me? regards