# TuN Express — Ahead of the Curve...

> iPhone app to control compatible JL Audio DSP amplifiers via Bluetooth LE. (iPhone/iPad app by JLAudio.)

- Source: https://appshunter.io/ios/app/tun-express/id1334612343 (this page in markdown: same URL + `.md`)
- Developer: [JLAudio](https://appshunter.io/developer/1327789106)
- Category: Utilities, Lifestyle
- Price: Free
- Rating: 3.10/5 from 19 App Store ratings · 6 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.0 · 31 MB
- Languages: American English
- Released: 2018-03-12
- Data updated: 2026-06-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/tun-express/id1334612343/reviews.md

## What is TuN Express?

Use your iPhone to set up and command a streamlined, basic DSP feature set on a compatible JL Audio DSP-based amplifier, via Bluetooth LE connection. TüN™ Express automatically recognizes a compatible JL Audio product and offers a clear user interface optimized for that specific product. A simulation mode is included to simulate any product or perform offline setup.

TüN™ Express 3.1 is compatible with JL Audio VXi and MVi amplifiers. It is not compatible with FiX™ or TwK™ processors.

Important: requires a VXi-BTC Bluetooth® Communicator accessory connected to VXi or MVi amplifier

## Key features

- Bluetooth LE connection
- Automatic product recognition
- Optimized user interface
- Simulation mode for offline setup
- Command DSP features

## Recent user reviews (6 of 6)

All indexed reviews: https://appshunter.io/ios/app/tun-express/id1334612343/reviews.md

### 1/5 — Let down

*2022-10-27, version 4.5.0*

I feel like JL dropped the ball on this whole setup. U can’t do anything that is worth doing without a laptop, so the BTC you have to buy to use this software is a complete waste of money, I feel like I got ripped off and I’ve always been a big fan of JL. This has me wondering

### 1/5 — Need better app

*2022-10-06, version 4.5.0*

Like the other guy said it’s a waste of time. You can’t do anything with your phone. They need to have a better app for iPhone.

### 1/5 — Cannot Open Complex Projects

*2022-09-09, version 4.5.0*

This app cannot open TüN PC projects, which is what you will use for Autoset EQ. If you want to do quick adjustments with your Bluetooth connection, then you will need an iPad with TüN Mobile

### 1/5 — No equalizer on the mobile iOS?

*2021-10-14, version 1.0.3*

This app w o the equalizer function is a complete waste of time- idk if this is due to the iPhone 13 and the Tun software not being updated but def not happy to have paid an additional 150 for the Bluetooth module but still have to get a laptop out to play w the equalizer. Silly.

### 1/5 — Doesn’t work with VXi800

*2020-08-19, version 1.0.3*

Would have been really nice to know this app won’t work on an iPhone before spending $$ on the blue tooth communicator.

### 2/5 — Its a 2.5/5!

*2018-09-15, version 1.0.1*

I like the iPad and computer version better! If i had the same options as the mobile version it will be superb!

## Frequently asked questions about TuN Express

### What is TuN Express used for?

TuN Express is used to set up and command a streamlined, basic DSP feature set on compatible JL Audio DSP-based amplifiers using your iPhone via a Bluetooth LE connection.

### Which JL Audio amplifiers are compatible with TuN Express?

TuN Express 3.1 is compatible with JL Audio VXi and MVi amplifiers. It is not compatible with FiX™ or TwK™ processors.

### Do I need any accessories to use TuN Express?

Yes, it requires a VXi-BTC Bluetooth® Communicator accessory connected to the VXi or MVi amplifier to function.

### Can I use TuN Express without a connected amplifier?

Yes, a simulation mode is included that allows you to simulate any product or perform offline setup without a physical connection.

### What is the user rating for TuN Express?

TuN Express has a user rating of 3.1 stars based on 19 ratings.

### What devices does TuN Express support?

TuN Express is supported on iPhone, iPad, and iPod devices.

### How often is TuN Express updated?

The latest version, 4.5.0, was released on August 2, 2022. The app was originally released on March 12, 2018.

### Is TuN Express available for Android devices?

Based on the provided information, TuN Express is only available for iPhone, iPad, and iPod devices.

## Version history (last 5 releases)

### 4.5.0 — 2022-08-02

Increased project filename length.
Minor bug fixes.

### 1.0.3 — 2020-02-05

New Features:
1.Added support for MVi marine amplifiers and accessories
2.Option for high-contrast user interface mode in the Settings Menu 
3.Two-finger swipe now navigates from pane to pane in the interface
 
Numerous improvements and bug fixes, including an Improved interface for iPhone X, XS, XS Max and XR.

### 1.0.2 — 2019-10-04

New Features:
1.Added support for MVi marine amplifiers and accessories
2.Option for high-contrast user interface mode in the Settings Menu 
3.Two-finger swipe now navigates from pane to pane in the interface
 
Numerous improvements and bug fixes, including an Improved interface for iPhone X, XS, XS Max and XR.

### 1.0.1 — 2018-04-13

Minor improvements

### 1.0 — 2018-03-12

No release notes.

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## More apps by JLAudio

- [Primacy Mobile](https://appshunter.io/ios/app/primacy-mobile/id1509914405)

All apps by JLAudio: https://appshunter.io/developer/1327789106

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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 2026-06-10.*