# jAmp Doubler — Mono to stereo plugin

> AUv3 audio plugin for stereo widening via channel delay. (iPhone/iPad app by Jan Maes.)

- Source: https://appshunter.io/ios/app/jamp-doubler/id6475082851 (this page in markdown: same URL + `.md`)
- Developer: [Jan Maes](https://appshunter.io/developer/1550506252)
- Category: Music
- Price: Free
- Rating: 5.00/5 from 4 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 14.0 · 6 MB
- Languages: American English
- Released: 2024-02-18
- Data updated: 2026-08-31
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/jamp-doubler/id6475082851/reviews.md

## What is jAmp Doubler?

Doubler is an AUv3 plugin that adds stereo effect by delaying the right channel wrt the left channel. The delay is controlled by the central knob and goes from 0 microseconds to 50 microseconds. It is possible to control this plugin via MIDI.

## Key features

- Stereo widening effect
- Adjustable delay time (0-50 microseconds)
- MIDI control
- AUv3 plugin format
- Enhances mono audio

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/jamp-doubler/id6475082851/reviews.md

### 5/5 — Amazing app

*2024-03-19*

PERFECT FOR DELAY TAPE, I LOVE THIS APP

## Frequently asked questions about jAmp Doubler

### What does jAmp Doubler do?

jAmp Doubler is an AUv3 audio plugin that creates a stereo effect by delaying the right channel relative to the left. This process widens the soundstage of mono audio sources.

### How much does jAmp Doubler cost?

jAmp Doubler is available for free. There are no in-app purchases or subscription fees associated with its use.

### What devices support jAmp Doubler?

jAmp Doubler is supported on Mac, iPhone, iPad, and iPod. It functions as an AUv3 plugin within compatible audio applications on these devices.

### Can jAmp Doubler be controlled with MIDI?

Yes, jAmp Doubler supports MIDI control. This allows users to automate or manually adjust the delay parameters using MIDI controllers.

### What is the range of delay control in jAmp Doubler?

The central knob in jAmp Doubler allows for precise control of the delay time, ranging from 0 microseconds up to 50 microseconds.

### How often is jAmp Doubler updated?

jAmp Doubler was last updated on March 7, 2024, with version 1.2. The app was initially released on February 18, 2024.

### What is the age rating for jAmp Doubler?

jAmp Doubler has an age rating of 4+. This indicates it is suitable for users of all ages.

### Does jAmp Doubler have ads?

No, jAmp Doubler does not contain advertisements. As a free plugin, it provides an ad-free experience for users.

## Version history (last 3 releases)

### 1.2 — 2024-03-07

- Fixing a crash that occurs on some devices when the Audio Unit is installed for the first time.

### 1.1 — 2024-02-20

- MIDI bug fix
- Stereo delay initialization fix

### 1.0 — 2024-02-19

No release notes.

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## More apps by Jan Maes

- [Groovy Metronome](https://appshunter.io/ios/app/groovy-metronome/id1550506250)
- [Losing chess](https://appshunter.io/ios/app/losing-chess/id1556993151)
- [Groovy Pianotuner](https://appshunter.io/ios/app/groovy-pianotuner/id1565645496)
- [ASMR Marble](https://appshunter.io/ios/app/asmr-marble/id1576763348)
- [jAmp 8100](https://appshunter.io/ios/app/jamp-8100/id6450633716)
- [Cab ML](https://appshunter.io/ios/app/cab-ml/id6469339928)

All apps by Jan Maes: https://appshunter.io/developer/1550506252

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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 2026-08-31.*