is it possible to know the crossover frequency of the crossover in question?
attached is the diagram.
I tried the simulation with ltspice of the high pass filter, but it gives me the cutoff frequency higher than 10kHz both with a 4 and 8 ohm load, considering the resistance of the PTC = 0.
attached is the diagram.
I tried the simulation with ltspice of the high pass filter, but it gives me the cutoff frequency higher than 10kHz both with a 4 and 8 ohm load, considering the resistance of the PTC = 0.
Attachments
Where did you find this crossover schematic?
The value of L in mH is not given and I don't understand the values of the capacitors (the figures are too high if they are in μF).
Have you no information about the tweeter and woofer, such as their nominal impedances?
EDIT: I have found the WEAH-234 crossover board: https://www.aliexpress.com/item/1005005929724896.html
The value of L in mH is not given and I don't understand the values of the capacitors (the figures are too high if they are in μF).
Have you no information about the tweeter and woofer, such as their nominal impedances?
EDIT: I have found the WEAH-234 crossover board: https://www.aliexpress.com/item/1005005929724896.html
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The values of the capacitors in μF and of the inductor in mH are not given in the above AliExpress link. Any numbers given are meaningless.
I would urge you to avoid using a ready made crossover such as this as it gives no proper specifications.
Instead, if you tell us the make and model of both tweeter and woofer you intend to use, we should be able to suggest what individual components you could wire together to make a simple crossover to match the driver specifications.
I would urge you to avoid using a ready made crossover such as this as it gives no proper specifications.
Instead, if you tell us the make and model of both tweeter and woofer you intend to use, we should be able to suggest what individual components you could wire together to make a simple crossover to match the driver specifications.
Capacitor code of 305 = 3000000pF or = 3uF
224 = 220000pF or = 0.22uF
Capacitor-value-code-calculator
It is a first order high pass filter with cutoff/-3dB frequency @ 6.2kHz for an 8 ohm tweeter.
224 = 220000pF or = 0.22uF
Capacitor-value-code-calculator
It is a first order high pass filter with cutoff/-3dB frequency @ 6.2kHz for an 8 ohm tweeter.
Thanks chrisng. I suspected that those numbers were likely to be capacitor codes, but was not motivated sufficiently to interpret them!
Thanks for the help.
I would like to build some speakers simply to improve the sound of the PC speaker, spending as little as possible.
having at home already 2 tweeters and 2 woofers from 13 cm of diameter woofers for cars I thought of buying this crossover to filter the speakers in some way
I would like to build some speakers simply to improve the sound of the PC speaker, spending as little as possible.
having at home already 2 tweeters and 2 woofers from 13 cm of diameter woofers for cars I thought of buying this crossover to filter the speakers in some way
It may be sufficient for your needs to simply prevent the low frequencies from reaching the tweeter.
For this you would connect a plastic film capacitor in series (in line with) with the tweeter.
Assuming the tweeter's nominal impedance to be 4 ohm, I suggest a capacitor value of 4.7 uF.
Connect the 5" car mid/woofer directly to the + and - speaker input terminals.
Connect the tweeter to the speaker input terminals, but with the 4.7 uF capacitor in series with its + terminal.
Try that and if not entirely to your satisfaction return for more assistance.
For this you would connect a plastic film capacitor in series (in line with) with the tweeter.
Assuming the tweeter's nominal impedance to be 4 ohm, I suggest a capacitor value of 4.7 uF.
Connect the 5" car mid/woofer directly to the + and - speaker input terminals.
Connect the tweeter to the speaker input terminals, but with the 4.7 uF capacitor in series with its + terminal.
Try that and if not entirely to your satisfaction return for more assistance.