# GZDSP 4-8X Control — for GROUND ZERO GZDSP 4-8X/XII

> for GROUND ZERO GZDSP 4-8X/XII (iPhone/iPad app by Ground Zero GmbH.)

- Source: https://appshunter.io/ios/app/gzdsp-4-8x-control/id1446274885 (this page in markdown: same URL + `.md`)
- Developer: [Ground Zero GmbH](https://appshunter.io/developer/1446274884)
- Category: Music
- Price: Free
- Age rating: 4+
- Requires: iOS 8.0 · 48 MB
- Languages: American English, Chinese (Simplified, China), Chinese (Traditional, Taiwan)
- Released: 2018-12-20
- Data updated: 2026-09-18
- User reviews in markdown: https://appshunter.io/ios/app/gzdsp-4-8x-control/id1446274885/reviews.md

## What is GZDSP 4?

This app enables you to control and to adjust the setup of the GROUND ZERO GZDSP 4-8X and GZDSP 4-8XII signal processor when connected to the GROUND ZERO GZDSP BT-STICK or GZDSP BTS 4-8XII streaming device.

A detailed user manual can be downloaded from the GROUND ZERO web page:
https://ground-zero-audio.com/

The factory set password for "Advanced Settings" is 666666 
You may change the password any time

Requirements for using the app:
Installed and powered signal processor unit GROUND ZERO GZDSP 4-8X or XII with connected GROUND ZERO GZDSP BT-STICK or GZDSP BTS 4-8XII streaming interface. Established wireless connection between your iOS mobile device and the GZDSP BT-STICK or GZDSP BTS 4-8XII (check the devices´s owner´s manual for further information about creating a wireless connection).

After adding the app to your iOS device and having connected the GZDSP BT-STICK or GZDSP 4-8XII in wireless mode, you´ll be able to control the main features of the GZDSP 4-8X or XII

- Adjust the main volume 
- Mute/unmute the main volume
- Select a preset (out of the 6 presets from the device´s memory)

Furthermore, you will have access to the advanced settings of the GZDSP 4-8X signal processor: (factory set password 666666)

- Input and output selection and mixer
- High pass and low pass crossover setting
- Channel link configuration
- Channel phase control
- 10-band parametric equalizer adjustment
- Time alignment setup in ms/cm/inches
- Reset function
- Save and load presets to/from the device´s memory


## Version history (last 5 releases)

### 1.0.7 — 2019-11-21

1.GZDSP 4-8X Control V1.07 includes some new features and bug fixes.

2.The factory set password for "Advanced Settings" is 666666 .You may change the password any time.

### 1.0.6 — 2019-11-19

1.Fix bug.

### 1.0.5 — 2019-10-30

1.Fix bugs。

### 1.0.4 — 2019-10-10

1.Fix bug.

### 1.0.3 — 2019-05-05

1.Fix bug.

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## More apps by Ground Zero GmbH

- [GZDSP CONTROL PRO](https://appshunter.io/ios/app/gzdsp-control-pro/id1465677920)
- [GZDSP 6-10SQ](https://appshunter.io/ios/app/gzdsp-6-10sq/id6599849590)

All apps by Ground Zero GmbH: https://appshunter.io/developer/1446274884

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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 2026-09-18.*