i am newbie....
i have onida ky thunder tv subwoofer
so i want help for circuit to play this speaker
i need max. bass and easiest circuit...no treble or vocal
please help
and sorry diyaudio sir...for direct posting
i have onida ky thunder tv subwoofer
so i want help for circuit to play this speaker
i need max. bass and easiest circuit...no treble or vocal
please help
and sorry diyaudio sir...for direct posting
Hi jatinpatel. Can you explain more what you want to do? Do you have the whole Television, or just the speaker driver and you want to use it without the tv?
Seeing that you posted in the amplifier section, I assume that you've separated the speaker from the tv, because I think the tv originally powered the speaker, but perhaps I misunderstand.
I'll go out on a limb, and guess that if you're using this speaker that low cost is one of your design goals. If low cost is not a design goal, but max bass is, then I'd suggest doing lots of reading in the subwoofer forum at DIY Audio, and you may choose a different speaker and have a whole new design plan after that.
If you're going to use the KY Thunder Television Speaker, and also you want to keep it simple.
Something like this may work well if I understand your goals: Lepai LP-168HA 2.1 2x40W Mini Amplifier + 1x68W Sub Output
I make this suggestion because if you're really wanting to DIY build your own, tools, a spool of solder, etc. may cost more than the entire amp I've suggested above.
I hope that's helpful.
Respectfully,
AlexQS
If you're going to use the KY Thunder Television Speaker, and also you want to keep it simple.
Something like this may work well if I understand your goals: Lepai LP-168HA 2.1 2x40W Mini Amplifier + 1x68W Sub Output
I make this suggestion because if you're really wanting to DIY build your own, tools, a spool of solder, etc. may cost more than the entire amp I've suggested above.
I hope that's helpful.
Respectfully,
AlexQS
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Okay then. I thought the Lepai would be a good solution because it has the amplifier and low-pass filter all together. Those are the two things you'll need to make it work. Technically it will work without the low-pass filter, but for "max bass" as you say, it will sound better if you use the low-pass filter. This removes the high-treble frequencies allowing the speaker to just play the bass.
What values should you use for a low pass filter? It would be best to have the Thiele/Small parameters for the speaker before beginning to answer that question. Learn about T/S parameters here: https://en.wikipedia.org/wiki/Thiele/Small
You may get away with simply assuming that a 250 hertz low pass, or a 125 hertz low pass will work, and build a low pass filter based on that assumption, you'll still need to know at least the impedance of the speaker to do that. You'll also need to know the impedance of the speaker to choose an amplifier, which is the other part you need.
For the amplifier, the TV may have originally had a small amplifier board running it. There are several examples to choose from here: amplifier board - Parts Express Ships Fast and Ships Free. Many of them will need a power supply and or heat-sink in addition to the amp board, and of course you'll need a chassis too. There are many other kits available on the market, look at the Vendor Forum here too.
You'll find varying levels of how much you Do It Yourself, or how much is pre planned. For example there's this: http://www.diyaudio.com/forums/blogs/wintermute/134-construction-p2p-lm3886-gainclone-part-1.html,
2. If you're willing to use a different speaker, I think this would be an option that would give you much better results. You can put it together yourself, and an expert has already done all the math, research and designed a plan that produces max bass. I'm sure you'd be very happy with purchasing any of these do it yourself subwoofer kits. https://www.madisoundspeakerstore.com/subwoofer-speaker-kits/
What values should you use for a low pass filter? It would be best to have the Thiele/Small parameters for the speaker before beginning to answer that question. Learn about T/S parameters here: https://en.wikipedia.org/wiki/Thiele/Small
You may get away with simply assuming that a 250 hertz low pass, or a 125 hertz low pass will work, and build a low pass filter based on that assumption, you'll still need to know at least the impedance of the speaker to do that. You'll also need to know the impedance of the speaker to choose an amplifier, which is the other part you need.
For the amplifier, the TV may have originally had a small amplifier board running it. There are several examples to choose from here: amplifier board - Parts Express Ships Fast and Ships Free. Many of them will need a power supply and or heat-sink in addition to the amp board, and of course you'll need a chassis too. There are many other kits available on the market, look at the Vendor Forum here too.
You'll find varying levels of how much you Do It Yourself, or how much is pre planned. For example there's this: http://www.diyaudio.com/forums/blogs/wintermute/134-construction-p2p-lm3886-gainclone-part-1.html,
2. If you're willing to use a different speaker, I think this would be an option that would give you much better results. You can put it together yourself, and an expert has already done all the math, research and designed a plan that produces max bass. I'm sure you'd be very happy with purchasing any of these do it yourself subwoofer kits. https://www.madisoundspeakerstore.com/subwoofer-speaker-kits/
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