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