This is my first post in this forum.
I want to build a 100W Class-D amplifier for this speaker. There will be two speaker (L channel and R channel)
8-inch Kevlar 2-Way In-Ceiling Speakers (Pair) - 80W Nominal, 160W Max - Monoprice.com
My question is what is the inductor and capacitor purpose here ? (seen in the image). Are they used for filter ?
Any 100W class D chip suggestion with little heat dissipation ?
I want to build a 100W Class-D amplifier for this speaker. There will be two speaker (L channel and R channel)
8-inch Kevlar 2-Way In-Ceiling Speakers (Pair) - 80W Nominal, 160W Max - Monoprice.com
My question is what is the inductor and capacitor purpose here ? (seen in the image). Are they used for filter ?
Any 100W class D chip suggestion with little heat dissipation ?
Hi,
as you may see there's a tweeter placed in the center of the kevlar cone - it's called concentric or coaxial- and the crossover network is there with the purpose of filtering the signal for the two different speakers. It also plays a role in equalization and level matching between the two.
And, of course, it is calculated for installation on wall.
So if you "exit" from the infinite baffle configuration
( and on wall it's a "half space emission" type) as you would intend to use it in a regular box, you'll find that you'll have to fight with BSC ( baffle step compensation). So you'll have to recalculate the filter : bigger inductor on the woofer, so probably different level at crossover frequency and it requires a basic but solid approach to this kind of matter.
as you may see there's a tweeter placed in the center of the kevlar cone - it's called concentric or coaxial- and the crossover network is there with the purpose of filtering the signal for the two different speakers. It also plays a role in equalization and level matching between the two.
And, of course, it is calculated for installation on wall.
So if you "exit" from the infinite baffle configuration
( and on wall it's a "half space emission" type) as you would intend to use it in a regular box, you'll find that you'll have to fight with BSC ( baffle step compensation). So you'll have to recalculate the filter : bigger inductor on the woofer, so probably different level at crossover frequency and it requires a basic but solid approach to this kind of matter.
I will use it in ceiling.
Will the speaker internal crossover network effect the class D output filter ?
Will the speaker internal crossover network effect the class D output filter ?
No, as long as it's a stable amplifier on a 8 Ω load.
I would fear more from the possible problems arising when using a long (> 2m ) cable for connecting the speakers and the amp.
I would fear more from the possible problems arising when using a long (> 2m ) cable for connecting the speakers and the amp.
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