# CrossOver Filter — The best for Crossover Filter

> Audio crossover filter design and simulation tool for car and home stereo systems. (iPhone/iPad app by Pasquale Puglisi.)

- Source: https://appshunter.io/ios/app/crossover-filter/id1008101973 (this page in markdown: same URL + `.md`)
- Developer: [Pasquale Puglisi](https://appshunter.io/developer/1008101972)
- Category: Music, Utilities
- Price: $1.99
- Rating: 2.70/5 from 3 App Store ratings · 3 written reviews indexed
- Age rating: 4+
- Requires: iOS 8.2 · 28 MB
- Languages: American English, French (France), Italian, European Spanish
- Released: 2015-08-03
- Data updated: 2026-09-03
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/crossover-filter/id1008101973/reviews.md

## What is CrossOver Filter?

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.

## Key features

- Crossover filter calculation (2-way, tweeter, mid-range, subwoofer)
- Selectable Q factor of Merit (Butterworth, Bessel, etc.)
- Zobel and Speaker Attenuation calculation
- Notch circuit calculation
- Component value calculation (resistors, coils, capacitors)
- Speaker cable attenuation and resistance calculation
- Signal generator (frequency sweep, noise)
- Project PDF/image generation and sharing

## Recent user reviews (3 of 3)

All indexed reviews: https://appshunter.io/ios/app/crossover-filter/id1008101973/reviews.md

### 2/5 — Calcolo filtri crossover

*2021-12-31, version 4.24.8*

Idea carina e sarebbe stata geniale se l’applicazione non fosse così limitata per quei pochissimi parametri richiesti per il calcolo del crossover. 
Stessi parametri richiesti da qualsiasi simulatore online gratuito. 
Applicazione dimenticata da chi l’ha realizzata, in quanto l’ultimo aggiornamento risale a 2 anni fa. 
Un consiglio per lo sviluppatore dell’App, per Mac OS X e iOS non esistono programmi ne app per la realizzazione dei filtri crossover, implementandola nel modo idoneo, questa applicazione diventerebbe il cavallo di battaglia per tutti noi non professionisti del settore che vorrebbero realizzare comunque dei filtri crossover più compatibili possibile con gli altoparlanti scelti per il progetto. 
Non è una critica, ma uno stimolo a realizzare un qualcosa a mio avviso di veramente utile. 
Grazie

### 3/5 — Questa versione non funziona

*2019-08-18, version 4.24.5*

Purtroppo in questa versione sono presenti molti errori di calcolo, dai vìcalcoli del filtro midrange, alla sezione dei cavi, inoltre il generatore audio va su iphone ma non su iPad, da migliorare velocemente.

### 5/5 — Calcolo filtri

*2018-08-26, version 3.36.0*

App fatta molto bene ed intuitiva benché l’argomento trattato sia molto molto complesso
Grazie

## Frequently asked questions about CrossOver Filter

### What types of crossover filters can CrossOver Filter calculate?

CrossOver Filter can calculate two-way filters at 6, 12, 18, and 24dB/octave. It also supports calculations for tweeters, mid-ranges, and subwoofers/woofers with various dB/octave slopes.

### Can I select different Q factors for my filter designs in CrossOver Filter?

Yes, you can select the 'Q factor of Merit' for two-way, tweeter, and subwoofer/woofer filters. Supported Q factors include Butterworth, Bessel, Chebyshev, Linkwitz-Riley, and Linear Phase.

### Does CrossOver Filter help with component calculations?

Yes, CrossOver Filter can calculate the necessary resistances, coils, and capacitors for series or parallel connections. It also includes Zobel circuit and speaker attenuation calculations.

### What signal generation capabilities does CrossOver Filter offer?

CrossOver Filter includes a signal generator with adjustable frequencies from 20Hz to 20KHz. It supports sweep up/down, ascending/descending tones, pink noise, and white noise.

### How can I save or share my crossover filter projects with CrossOver Filter?

You can generate PDF or image files of your projects for saving or sharing via email, iMessage, and social networks. Projects can also be saved to cloud storage like Dropbox or Google Drive.

### What is the price of CrossOver Filter?

CrossOver Filter is a paid application, priced at $1.99.

### What devices is CrossOver Filter compatible with?

CrossOver Filter is compatible with iPhone, iPad, and iPod devices.

### How often is CrossOver Filter updated?

The latest version of CrossOver Filter was released on August 22, 2019. While the app has not been updated recently, it offers a comprehensive set of features for its intended purpose.

## Version history (last 5 releases)

### 4.24.8 — 2019-08-22

Bug fix Two-Way 12/18 db Butterworth.
Add Butterworth in Midrange 12/18 db.

### 4.24.5 — 2019-06-17

From now in “Impedance” you could olso add decimals.
Small bug fix.

### 4.23.0 — 2018-12-14

• Now you can change the value of the Capacitors with standard Capacitor value.
• You can select standard Resistances in Attenuation.
• Optimized for iPhone XS Max and iPad Pro.
• Minor Bug Fix.

### 3.36.0 — 2018-06-19

Improved "Signal Generator".
Bug Fixes and performance improvements .

### 3.35.4 — 2017-11-08

Ready for iPhone X.

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## More apps by Pasquale Puglisi

- [BassBox Sealed Pro](https://appshunter.io/ios/app/bassbox-sealed-pro/id1111558382)
- [BassBox Reflex Pro](https://appshunter.io/ios/app/bassbox-reflex-pro/id1223149285)
- [Disiu](https://appshunter.io/ios/app/disiu/id1560816599)
- [Disiu Business](https://appshunter.io/ios/app/disiu-business/id1560817027)

All apps by Pasquale Puglisi: https://appshunter.io/developer/1008101972

## Related topics

[cross over](https://appshunter.io/ios/topics/cross-over)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-03.*