Hello can anyone design for me a 1st order crossover for my car im looking for a simple crossover because the crossover will go inside the panel of the car´s door and need to be small.
The drivers i want to filter are this:
Tweeter Focal TWU1.5
https://www.focal.com/sites/www.foc...document/universal_twu1.5-technical_sheet.pdf
Dayton Audio ND140-4
Looking for a Dayton Audio ND140-4 woofer? - SoundImports
The drivers i want to filter are this:
Tweeter Focal TWU1.5
https://www.focal.com/sites/www.foc...document/universal_twu1.5-technical_sheet.pdf
Dayton Audio ND140-4
Looking for a Dayton Audio ND140-4 woofer? - SoundImports
1st order means one component only, so start with 2.2uF or 3.3uF in series with the tweeter.
You want to cross it at 6-8 KHz since minimum frequency response is 4Khz.
There are many calculators online.
I have installed Focals on my VW Golf (Rabbit in USA) but they came with a second order crossover box.
You want to cross it at 6-8 KHz since minimum frequency response is 4Khz.
There are many calculators online.
I have installed Focals on my VW Golf (Rabbit in USA) but they came with a second order crossover box.
Maybe its better a 2 order but i want it to cross at 3,5 KHz. I´ve heard that crossover calculators are useless so i asked for help in a thread
I have a UMIK-1 for measure the response but crossover´s components are expensive so i need a little help designing. Im not looking a true hifi sound but want to get the cut of frequency for the drivers choosed
Your tweeter looks expensive so maybe a automotive friendly DSP is within your price range. You would need to locate it somewhere you had space but you wouldn't be limited to your door panel.
"crossover calculators are useless" - only if you don't know how to use them.
Simplest crossover for your tweeter: Use the impedance at your chosen crossover frequency to calculate a series capacitor (looks to be ~ 3.5 ohms), then find how much more sensitive your tweeter is than your mid (5.6dB?), and calculate a series resistor: L pad calculator - attenuation dB damping impedance decibel loudspeaker speaker voltage divider - sengpielaudio Sengpiel Berlin
Simplest crossover for your tweeter: Use the impedance at your chosen crossover frequency to calculate a series capacitor (looks to be ~ 3.5 ohms), then find how much more sensitive your tweeter is than your mid (5.6dB?), and calculate a series resistor: L pad calculator - attenuation dB damping impedance decibel loudspeaker speaker voltage divider - sengpielaudio Sengpiel Berlin
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...However, your mid/woofer has an aluminium cone, and may need crossover components to damp the usual peak these cones have. Have you listened to them?
No the DSP has to be before the amplifier and you need separate channels for tweeter and woofer so four individual channels for a stereo pair.
Tony.
Tony.
I would suggest a different woofer without strong resonances
Jordan Eikona - E J Jordan Designs
the tweeter seems to be of high quality but very high X-over frequency, so the woofer should be of exeptional quality in the treble region.
Jordan Eikona - E J Jordan Designs
the tweeter seems to be of high quality but very high X-over frequency, so the woofer should be of exeptional quality in the treble region.
Which is what? And where are you thinking to mount the tweeter? What amp(s) are you thinking to use.
Crossovers are complicated because calculations are based on electric filter theory but speakers are NOT resistors at all. Fortunately that Focal tweeter's impedance seems fairly flat. Less fortunately, its frequency response is totally weird, unless maybe it is being measured with a capacitor and they don't say so.
Woofers in a car are generally low in the door and not on-axis at all. The woofer you propose has a pretty even power response up to 3k so yes ideally you want a tweeter that can do down nearly that low. I would be looking for a larger diameter tweeter that could cross over lower *if* you can fit that.
