I was modeling a slightly smaller enclosure to make up for the port, but change the end correction to "two free ends" - that's the main difference. The simulation is not going to be THAT accurate anyway, though.
I did the enclosure with MDF walls compensating on the front and back.
Please have a look, will I be alright with either way?
Will I have to place the enclosure a least 6 inches from the wall if the port is on the back?
Please have a look, will I be alright with either way?
Will I have to place the enclosure a least 6 inches from the wall if the port is on the back?
An externally hosted image should be here but it was not working when we last tested it.
I'm sure either of those would work okay. What about moving the front one down so that the vertical center is on the gap between the two drivers? For the one in the corner, you'd probably end up quite a bit shorter than simulation, which is a good thing, you just have to check Fb with test tones (or another method) when you're done. You should do that anyway.
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How am I supposed to check the Fb with test tones... just playing tones?
Here is the suggested circuitry made by the calculators.
Notice the details of the attenuator and notice the tweeter box.
The tweeter box looks like proposes another circuit for attenuation and it suggests a 22 Ohms/20W resistor to bring down 21 dB.
Also, the folk who said in here that "the piezo is never 108dB" means that this box is probably wrong numbers???
Here is the suggested circuitry made by the calculators.
Notice the details of the attenuator and notice the tweeter box.
The tweeter box looks like proposes another circuit for attenuation and it suggests a 22 Ohms/20W resistor to bring down 21 dB.
Also, the folk who said in here that "the piezo is never 108dB" means that this box is probably wrong numbers???
An externally hosted image should be here but it was not working when we last tested it.
Expect a sensitivity of 94-95 dB at 2.83 volt. 108 dB is the maximum spl at 13 volt.
New Model... Is this alright? Better than anything?
An externally hosted image should be here but it was not working when we last tested it.
Ok, this is the final enclosure design.
The port actual opening will be 3,81cm.
The length will be 11,5cm as suggested by WinISD for a tuning of 80Hz.
Question: Do I need to place carpet on the inside MDF walls?
The port actual opening will be 3,81cm.
The length will be 11,5cm as suggested by WinISD for a tuning of 80Hz.
Question: Do I need to place carpet on the inside MDF walls?
An externally hosted image should be here but it was not working when we last tested it.
Yes, I realize that the the text you are proposing to be read has the same circuit of the one printed on the tweeter's box.
So I just ignore the DIY tweeter attenuator? I am not sure as to which related detail you are telling me this. Should I ignore the crossover circuit or the attenuator circuit and follow the piezo scheme?
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