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I'm getting ready to build this project (already purchased all of the components and built the box) and was wondering if someone kind enough could please model the crossover and post the graphs and part values in this thread. This way other potential builder could use this information. Requirements for the project are:
- Vifa D25AG-35-06 (6 ohm) aluminum dome tweeter.
- SB Acoustics SB15NRXC30-8 (8 ohm) 5" paper mid-woofer.
- Third order Butterworth filter.
- 2200Hz crossover point.
- 10 liter box.
- Bass reflex/ported box.
- 8.25" baffle width = 552.7Hz
First simulation/modeling:
The tweeter should only consist of the three crossover parts for the third order Butterworth filter. (No pad). The woofer should consist of the three crossover parts for the third order Butterworth filter and the two parts for the Zobel network. The woofer should not have any baffle step compensation (BSC).
Second simulation/modeling:
The tweeter should consist of the three crossover parts for the third order Butterworth filter and either an l-pad, or a series resistor pad. The pad should come after the crossover. The goal of the pad is to match the output of the tweeter to the woofer, but leave a sligth rise in high frequencies after 10kHz. The woofer should consist of the three crossover parts for the third order Butterworth filter and the two parts for the Zobel network. The woofer should not have any baffle step compensation (BSC).
Third simulation/modeling:
The tweeter should consist of the three crossover parts for the third order Butterworth filter and either an l-pad, or a series resistor pad. The goal of the pad is to match the output of the tweeter to the woofer, but leave a sligth rise in high frequencies after 10kHz. The woofer should consist of the three crossover parts for the third order Butterworth filter and the two parts
for the Zobel network. The woofer should have a 2.5-3.0dB of baffle step compensation (BSC). This should be achieved by increasing the first inductor in the third order Butterworth filter. (The tweeter will have to be padded down even further to keep a flat overall frequency response, but with a slight rise above 10kHz).
I know this is a lot to ask for, but it would be greatly appreciated if someone could help. Unfortunately I don't have any means of measuring the drivers and importing this raw data to crossover simulation softwares.
The goal of this project is to use good budget drivers and a minimum complexity/low part count crossover. These three simulations should cover all angles of this project.
- Vifa D25AG-35-06 (6 ohm) aluminum dome tweeter.
- SB Acoustics SB15NRXC30-8 (8 ohm) 5" paper mid-woofer.
- Third order Butterworth filter.
- 2200Hz crossover point.
- 10 liter box.
- Bass reflex/ported box.
- 8.25" baffle width = 552.7Hz
First simulation/modeling:
The tweeter should only consist of the three crossover parts for the third order Butterworth filter. (No pad). The woofer should consist of the three crossover parts for the third order Butterworth filter and the two parts for the Zobel network. The woofer should not have any baffle step compensation (BSC).
Second simulation/modeling:
The tweeter should consist of the three crossover parts for the third order Butterworth filter and either an l-pad, or a series resistor pad. The pad should come after the crossover. The goal of the pad is to match the output of the tweeter to the woofer, but leave a sligth rise in high frequencies after 10kHz. The woofer should consist of the three crossover parts for the third order Butterworth filter and the two parts for the Zobel network. The woofer should not have any baffle step compensation (BSC).
Third simulation/modeling:
The tweeter should consist of the three crossover parts for the third order Butterworth filter and either an l-pad, or a series resistor pad. The goal of the pad is to match the output of the tweeter to the woofer, but leave a sligth rise in high frequencies after 10kHz. The woofer should consist of the three crossover parts for the third order Butterworth filter and the two parts
for the Zobel network. The woofer should have a 2.5-3.0dB of baffle step compensation (BSC). This should be achieved by increasing the first inductor in the third order Butterworth filter. (The tweeter will have to be padded down even further to keep a flat overall frequency response, but with a slight rise above 10kHz).
I know this is a lot to ask for, but it would be greatly appreciated if someone could help. Unfortunately I don't have any means of measuring the drivers and importing this raw data to crossover simulation softwares.
The goal of this project is to use good budget drivers and a minimum complexity/low part count crossover. These three simulations should cover all angles of this project.
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