# AX-DSP-XL

> Digital signal processor for vehicle audio system upgrades. (iPhone/iPad app by Metra Electronics Corporation.)

- Source: https://appshunter.io/ios/app/ax-dsp-xl/id1495854432 (this page in markdown: same URL + `.md`)
- Developer: [Metra Electronics Corporation](https://appshunter.io/developer/1133973919)
- Category: Utilities, Music
- Price: Free
- Rating: 2.20/5 from 5 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.1 · 10 MB
- Languages: English
- Released: 2020-01-22
- Data updated: 2026-06-01
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/ax-dsp-xl/id1495854432/reviews.md

## What is AX?

Axxess, a leader in vehicle interfacing, has once again set the industry standard by developing a cost effective option for customers desiring to improve vehicle sound quality with a Digital Signal Processor. The AX-DSP-XL presents an all-in-one solution for a variety of car audio system setups, from fixed level output (digital) to analog OE systems, and even adding a subwoofer to an OE system. Our before the amp solution is designed to allow the installers the option to remove the factory amplifier or to add a subwoofer all while maintaining the OE features and controls of the radio. Whether you have a Digital or Analog factory amplifier system, the AX-DSP-XL has you covered.

Unlike other digital signal processors on the market, the AX-DSP-XL includes a built-in Axxess Interface. More reasons installers will love the new Axxess DSP is for its quick and simple installation behind the factory radio, due to its small footprint. Features and settings are easily controlled via Bluetooth from our free Smartphone application. To further cut down on install time, Axxess has engineered vehicle specific T-Harnesses (sold separately), that make installation even faster and easier, with no need to cut any wires.

The Axxess Digital Signal Processor provides a smart and cost efficient way to provide improved sound quality that customers want when upgrading their vehicle sound systems.

## Key features

- Digital Signal Processor
- Subwoofer integration
- Preserves OE features
- Bluetooth smartphone control
- Vehicle-specific T-Harnesses (sold separately)
- All-in-one solution

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/ax-dsp-xl/id1495854432/reviews.md

### 1/5 — Major Disappointment!  Buy the ZEN-A2B2!

*2024-12-16*

I had high expectations after reading all the misleading information on the Axxess website and after installing their DSP in a Ford with the factory B&O system,  I can honestly say it's garbage.  I have installed car audio for 35 years,  take my advice and buy something else.

### 2/5 — Meh at best.

*2022-04-30*

Installed the DSP today. When I adjust crossover for sub it never saves. If you touch the EQ to boost low frequencies it cuts them out altogether. There’s no selection for 2022 Honda Accord or Sport Hybrid. Had the unit professionally installed, and it barely helped. Definitely not worth $400. The app is okay, but as I said, it doesn’t save frequencies. When adjusting crossover it says be sure to lock down, but you you have to back out to lock down, so it doesn’t save the setting.

## Frequently asked questions about AX

### What is AX-DSP-XL used for?

AX-DSP-XL is a digital signal processor designed to improve vehicle sound quality. It allows for integration of subwoofers and can be used with both digital and analog factory amplifier systems, while maintaining OE features and controls.

### How do I control AX-DSP-XL settings?

Features and settings for AX-DSP-XL are easily controlled via Bluetooth from a free smartphone application. This provides a convenient way to adjust your car's audio.

### Does AX-DSP-XL require cutting wires for installation?

No, AX-DSP-XL is designed for quick and simple installation. Vehicle-specific T-Harnesses, sold separately, can be used to avoid cutting any wires, making the installation process faster and easier.

### What kind of factory systems does AX-DSP-XL support?

AX-DSP-XL supports a variety of car audio system setups, including fixed level output (digital) and analog OE systems. It can also be used to add a subwoofer to an OE system.

### What is the user rating for AX-DSP-XL?

AX-DSP-XL has a user rating of 2.2 stars based on 5 ratings. This indicates a mixed reception from users.

### Is AX-DSP-XL free to use?

Yes, AX-DSP-XL is available for free. There are no upfront costs to download or use the application.

### When was AX-DSP-XL last updated?

The latest version of AX-DSP-XL was updated on April 15, 2024. This suggests the app is actively maintained by the developer.

### What age rating does AX-DSP-XL have?

AX-DSP-XL has an age rating of 4+. This means it is suitable for users aged 4 and above.

## Version history (last 5 releases)

### 1.33 — 2024-04-15

Added support for Ford A2B vehicles (257523)

### 1.32 — 2023-12-02

Added support for Tesla - only available on Tesla specific board
Fixed issue with 510 and DSP settings

### 1.31 — 2023-11-30

Added support for Tesla

### 1.30 — 2023-10-02

Enabled Amp Turn On Delay Slider when connected to AX-DSP-L devices

### 1.25 — 2023-06-14

Updated for Ethernet based boards

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## More apps by Metra Electronics Corporation

- [Axxess Updater](https://appshunter.io/ios/app/axxess-updater/id1098283197)
- [Spyclops](https://appshunter.io/ios/app/spyclops/id1133973920)
- [Axxess DSP](https://appshunter.io/ios/app/axxess-dsp/id1253998964)
- [Metra RGBW Lights](https://appshunter.io/ios/app/metra-rgbw-lights/id1453403247)
- [XSVI](https://appshunter.io/ios/app/xsvi/id1467290420)

All apps by Metra Electronics Corporation: https://appshunter.io/developer/1133973919

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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 2026-06-01.*