# ZAPCO ST-4X/6X/68X DSP

> Smartphone app for setting up and tuning ZAPCO ST-4X/6X/68X DSP amplifiers. (iPhone/iPad app by APEX Italy.)

- Source: https://appshunter.io/ios/app/zapco-st-4x6x68x-dsp/id1586152719 (this page in markdown: same URL + `.md`)
- Developer: [APEX Italy](https://appshunter.io/developer/1446565085)
- Category: Music, Music, Developer Tools
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 9.0 · 25 MB
- Languages: English
- Released: 2021-09-18
- Data updated: 2026-06-11
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/zapco-st-4x6x68x-dsp/id1586152719/reviews.md

## What is ZAPCO ST?

The ZAPCO ST-4X/6X/68X DSP App allow you to setup and tune your system with your smart phone for 6X/4X DSP amplifers.

## Key features

- System setup
- Audio tuning
- Smartphone control
- DSP amplifier configuration


## Frequently asked questions about ZAPCO ST

### What can I do with the ZAPCO ST-4X/6X/68X DSP app?

The ZAPCO ST-4X/6X/68X DSP app allows you to set up and tune your audio system directly from your smartphone. It is specifically designed for use with the 6X/4X DSP amplifiers.

### Is the ZAPCO ST-4X/6X/68X DSP app free to download?

Yes, the ZAPCO ST-4X/6X/68X DSP app is available for free download. There are no in-app purchases or subscription fees associated with its use.

### What devices is the ZAPCO ST-4X/6X/68X DSP app compatible with?

The ZAPCO ST-4X/6X/68X DSP app is compatible with iPhones and iPods. It is rated for ages 4 and up.

### How often is the ZAPCO ST-4X/6X/68X DSP app updated?

The ZAPCO ST-4X/6X/68X DSP app was last updated on March 18, 2023, with version 1.1. The app was initially released on September 18, 2021.

### Does the ZAPCO ST-4X/6X/68X DSP app have ads?

No, the ZAPCO ST-4X/6X/68X DSP app does not contain advertisements. It is a completely ad-free experience for users.

### What is the user rating for the ZAPCO ST-4X/6X/68X DSP app?

The ZAPCO ST-4X/6X/68X DSP app has a perfect rating of 5.0 stars based on one user review.

### Who developed the ZAPCO ST-4X/6X/68X DSP app?

The ZAPCO ST-4X/6X/68X DSP app was developed by APEX Italy.

## Version history (last 2 releases)

### 1.1 — 2023-03-18

fix some bugs

### 1.0 — 2021-09-18

No release notes.

## Apps similar to ZAPCO ST

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [COMANDO DSP 4X8](https://appshunter.io/ios/app/comando-dsp-4x8/id6738975711) | — | Free | Music |
| [PhoneAmp-Your handy amplifier](https://appshunter.io/ios/app/phoneamp-your-handy-amplifier/id1497498488) | 4.4 (181) | Free | Music |
| [PBX DSP8](https://appshunter.io/ios/app/pbx-dsp8/id1638281227) | 4.3 (4) | Free | Music |
| [NeSi xTrem](https://appshunter.io/ios/app/nesi-xtrem/id1553303748) | 4.7 (17) | Free | Music |
| [Capriccio Pro](https://appshunter.io/ios/app/capriccio-pro/id434828497) | 3.4 (92) | $1.99 | Music |
| [WaveScope for Logic Pro](https://appshunter.io/ios/app/wavescope-for-logic-pro/id1456540213) | 4.0 (14) | Free | Music |

## More apps by APEX Italy

- [ZAPCO DSP-Z8IVII](https://appshunter.io/ios/app/zapco-dsp-z8ivii/id1446881973)
- [HARMONY DSP](https://appshunter.io/ios/app/harmony-dsp/id1638244924)
- [HB 410 ADSP](https://appshunter.io/ios/app/hb-410-adsp/id6450350919)
- [HB II DSP](https://appshunter.io/ios/app/hb-ii-dsp/id6753644572)
- [HB 46 II 4A-A](https://appshunter.io/ios/app/hb-46-ii-4a-a/id6757208496)

All apps by APEX Italy: https://appshunter.io/developer/1446565085

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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 2026-06-11.*