# DSI-3

> Car audio digital signal processor tuning and control application. (iPhone/iPad app by DD Audio.)

- Source: https://appshunter.io/ios/app/dsi-3/id1544985377 (this page in markdown: same URL + `.md`)
- Developer: [DD Audio](https://appshunter.io/developer/599474306)
- Category: Utilities
- Price: Free
- Rating: 3.00/5 from 2 App Store ratings
- Age rating: 4+
- Requires: iOS 9.0 · 12 MB
- Languages: English, Chinese, Chinese
- Released: 2021-02-22
- Data updated: 2026-07-05
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/dsi-3/id1544985377/reviews.md

## What is DSI?

The DSI-3 app is designed for use with the DD Audio DSI-3 digital signal processor, this app gives you the tools needed to fine tune virtually every aspect of you car audio system.

Whether you’re a professional installer or an obsessive audiophile this app allows you to realize the true potential of your audio equipment with a straightforward layout and logical controls.

 
Features:

- Bluetooth 5.0 compatible

- 6 customizable presets

- 31 bands of parametric equalization per channel

- Phase correction

- Crossover type, frequency, and slope adjustments

- Independent input and output level controls

- Time alignment

- Input summing and linking

## Key features

- Bluetooth 5.0 connectivity
- 6 customizable presets
- 31-band parametric EQ per channel
- Phase correction
- Crossover adjustments
- Input/output level controls
- Time alignment


## Frequently asked questions about DSI

### What is DSI-3 used for?

DSI-3 is used to fine-tune virtually every aspect of your car audio system when paired with the DD Audio DSI-3 digital signal processor. It provides tools for equalization, crossovers, time alignment, and more.

### Is DSI-3 compatible with my device?

DSI-3 is supported on iPhone and iPod devices. It requires Bluetooth 5.0 compatibility for connection to the digital signal processor.

### What are the key tuning features in DSI-3?

DSI-3 offers 31 bands of parametric equalization per channel, phase correction, crossover adjustments (type, frequency, slope), independent input and output level controls, and time alignment.

### Can I save my audio settings with DSI-3?

Yes, DSI-3 allows you to save your audio configurations using 6 customizable presets. This enables you to quickly switch between different sound profiles.

### What is the user rating for DSI-3?

DSI-3 has a user rating of 3.0 stars based on 2 ratings. This indicates a mixed reception from its current user base.

### When was DSI-3 last updated?

The latest version of DSI-3 was released on April 26, 2021. The app was initially released on February 22, 2021.

### Does DSI-3 have ads?

No, DSI-3 does not contain advertisements. The app is free to download and use without any ad interruptions.

### What age rating is DSI-3?

DSI-3 has an age rating of 4+. This suggests it is suitable for users of all ages, with no mature content.

## Version history (last 2 releases)

### 1.0.1 — 2021-04-26

1. add recognition and connection to DSI-3 bluetooth name.

### 1.0.0 — 2021-02-22

No release notes.

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| --- | --- | --- | --- |
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## More apps by DD Audio

- [DD Toolbox](https://appshunter.io/ios/app/dd-toolbox/id599474303)
- [DSI-2](https://appshunter.io/ios/app/dsi-2/id1379793450)
- [DSI-X2](https://appshunter.io/ios/app/dsi-x2/id6751246225)

All apps by DD Audio: https://appshunter.io/developer/599474306

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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 2026-07-05.*