Does a DIY Audio Crossover make sense? How passive filters work! EB#41
video description
Fun fact: I replaced an off the shelf crossover with my own design a week ago. The difference is that I designed the speaker enclosure, and chose the drivers, but got cheap with the crossover when I built them. I finally have money for a proper crossover. 16 AWG air core inductors and polypropylene caps for a 60W monitor. It helped that I measured the impedance curves for both drivers and knew what circuit I was really dealing with, along with having a 3D printer for printing the inductor cores for winding them.
Date: 2020-09-05
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Comments and reviews: 9
Good
There is no way of designing a GOOD cross over without having the FRD and ZMA files for the drivers and using a program like PCD or XSIM. Each speaker has unique properties which must be considered. I suggest downloading and using one of these programs and visiting the Parts Express forum. Simply picking a cross over frequency based upon the driver parameters and designing standard second, third, or fourth order order filters NEVER arrives at a cross over that gets the most accurate sound out of the selected drivers.
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There is no way of designing a GOOD cross over without having the FRD and ZMA files for the drivers and using a program like PCD or XSIM. Each speaker has unique properties which must be considered. I suggest downloading and using one of these programs and visiting the Parts Express forum. Simply picking a cross over frequency based upon the driver parameters and designing standard second, third, or fourth order order filters NEVER arrives at a cross over that gets the most accurate sound out of the selected drivers.
reply
The
Hi!
I'm trying to make a bluetooth speaker out of a frontspeaker. I want to put in 2 SB Acoustics woofers that have 40W, 50-12000hz & 4Ohm + 1 SB Acoustics tweeter that has 2500-30000hz &4Ohm. I want this to be powered by a 100W amplifier board.
The problem for me is the crossover. I'll need a crossover with 2 bass/mid outputs and 1 tweeter output. Is there any crossover that has these specifications or is there an (easy) way to combine crossovers to get to that result?
reply
Hi!
I'm trying to make a bluetooth speaker out of a frontspeaker. I want to put in 2 SB Acoustics woofers that have 40W, 50-12000hz & 4Ohm + 1 SB Acoustics tweeter that has 2500-30000hz &4Ohm. I want this to be powered by a 100W amplifier board.
The problem for me is the crossover. I'll need a crossover with 2 bass/mid outputs and 1 tweeter output. Is there any crossover that has these specifications or is there an (easy) way to combine crossovers to get to that result?
reply
Arjun
Please,
Make video on DIY SMPS upto 50A current and explain on which factor output current is depends.
Questions: -
1. What effects on Voltage & Current whike varying frequency of primary winding.
2. What happens if I modify 10A SMPS Secondary winding thickness.
3. Why 20A SMPS size is bigger than 5A SMPS if output current is only depends on Secondary winding thickness.
reply
Please,
Make video on DIY SMPS upto 50A current and explain on which factor output current is depends.
Questions: -
1. What effects on Voltage & Current whike varying frequency of primary winding.
2. What happens if I modify 10A SMPS Secondary winding thickness.
3. Why 20A SMPS size is bigger than 5A SMPS if output current is only depends on Secondary winding thickness.
reply
Arjun
Please,
Make video on DIY SMPS upto 50A current and explain on which factor output current is depends.
Questions: -
1. What effects on Voltage & Current whike varying frequency of primary winding.
2. What happens if I modify 10A SMPS Secondary winding thickness.
3. Why 20A SMPS size is bigger than 5A SMPS if output current is only depends on Secondary winding thickness.
reply
Please,
Make video on DIY SMPS upto 50A current and explain on which factor output current is depends.
Questions: -
1. What effects on Voltage & Current whike varying frequency of primary winding.
2. What happens if I modify 10A SMPS Secondary winding thickness.
3. Why 20A SMPS size is bigger than 5A SMPS if output current is only depends on Secondary winding thickness.
reply
Yamaha
The woofer can still play high frequencies. The problem isn't speed or momentum. Look at single driver speakers. The problem is that once the wavelength is shorter than the diameter, you can't approximate it as a point source. It start beaming, almost like a laser. The diameter of the driver determines it's beaming, or lobing, at higher frequencies.
reply
The woofer can still play high frequencies. The problem isn't speed or momentum. Look at single driver speakers. The problem is that once the wavelength is shorter than the diameter, you can't approximate it as a point source. It start beaming, almost like a laser. The diameter of the driver determines it's beaming, or lobing, at higher frequencies.
reply
Hitesh
Hello, I wanted to know how the laptop charger actually works. I have seen most of the chargers having 3 output terminal, one is positive other one ground and the third one is identification pin. What is the use of that third pin? and if we want to design our own laptop charger, how would we do that?
reply
Hello, I wanted to know how the laptop charger actually works. I have seen most of the chargers having 3 output terminal, one is positive other one ground and the third one is identification pin. What is the use of that third pin? and if we want to design our own laptop charger, how would we do that?
reply
Prince
Conclusion: A simple amateur design won't beat a factory design that also considers the box the speaker is in. Not mentioned: Plenty of people know how to do this and design the box it came in. This video is very superficial.
reply
Conclusion: A simple amateur design won't beat a factory design that also considers the box the speaker is in. Not mentioned: Plenty of people know how to do this and design the box it came in. This video is very superficial.
reply
3V0
how would i make this a variable crossover? id want to adjust the frequencies of the high pass and low pass but im fairly new to building circuits. where would i put the tuning capacitor?
reply
how would i make this a variable crossover? id want to adjust the frequencies of the high pass and low pass but im fairly new to building circuits. where would i put the tuning capacitor?
reply
McLP
i once created a lpf by shorting the audio wires with a capacitor. it kind worked but had issues with 50hz humming. also I now know why my audio software has a filterX1 and a filterX4: D
reply
i once created a lpf by shorting the audio wires with a capacitor. it kind worked but had issues with 50hz humming. also I now know why my audio software has a filterX1 and a filterX4: D
reply
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