★★★★★
Average rating on the App Store. Apple doesn't publish how many ratings each star has.
Where this app stands in Vietnam, updated 6 Nov 2026
Top free
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Top paid · All apps and games
#86 –
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Bug fix Two-Way 12/18 db Butterworth. Add Butterworth in Midrange 12/18 db.
Designs and simulates the Crossover Filter of your car stereo system or home in a simple and professional way at the same time. Features and Functions: • Crossover Filter Calculation for Two-Way 6 / 12 / 18 and 24dB / octave. • Crossover Filter Calculation for Tweeter to 6 / 12 / 18 and 24dB / octave. • Crossover Filter Calculation for Mid-range to 6 / 12 and 18dB / octave. • Crossover Filter Calculation for Subwoofer / Woofer to 6 / 12 / 18 and 24dB / octave. Ability to select the "Q factor of Merit" in Two-Way, Tweeter and Subwoofer / Woofer (Butterworth, Bessel, Chebyshev, Linkwitz-Riley and Linear Phase). • Zobel Circuit Calculation. • Speaker Attenuation Calculation. • "Check Projects" of filters already existing. • Notch Circuit Parallel Calculation. • Notch Circuit Series Calculation. • Calculating Resistances, Coils and Capacitors in series or parallel connections. • Calculation Speaker Cable Attenuation and Cable Resistance with selection of metal cable (Copper, OFC Copper, LC-OFC Copper, Tin-Plated Copper, Nichel-Plated Copper, Silver and Aluminium). • Conversion table for AWG / mm / mm2. • Signal Generator, slide to select the Frequency from 20Hz to 20KHz, Sweep Up and Sweep Down to 20Hz/20KHz, Ascending tones, Descending tones, Pink Noise and White Noise. • Assembly diagram of Crossover. • Generates PDF files or image files to share or save your project. • Sharing of projects through Mail, iMessage and Social networks. • Saving of project in Photo, iBooks, Note, Dropbox, Google Drive, Evernote, etc. • Printing of project.