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SA-232D app for iPhone and iPad


4.6 ( 7056 ratings )
Utilities Productivity
Developer: DSP Wireless Inc.
19.99 USD
Current version: 1.0.0, last update: 7 years ago
First release : 04 Nov 2013
App size: 544 Kb

The SA-232D App provides a simple Control UI for the Stewart Audio AV25-2-RS232 Amplifier. From Stewart Audio "The sub compact AV25-2-RS232 is built to meet the rigorous demands of high quality commercial, industrial and Pro Audio sound installations."

To connect and control the AV25-2-RS232 Amp from the DSPW SA-232D App requires an Ethernet-to-RS232 converter. The SA-232D has been tested with converters from Tibbo and Global Cache. Other converters may work as well. Please contact DSPW for information on which converter is best for your application.


The SA-232D App allows a user to control 3 Audio Zones. Each Zone requires its own AV25-2-RS232 Amplifier. Depending on which Ethernet-to-RS232 adapter you are using, you may need one adapter for each zone.

Features -
1. Titles for each Zone can be set by the user.

2. Volume level shown in text and with meter.

3. Buttons for Mute, Volume Up and Volume Down.

4. Zone select control. 1,2, or 3.

5. Setup button. Will display setup screens.

6. When in Mute the Volume meter is Orange. When not in Mute the Volume meter is Green and displays the volume level.

7. Network Status indicator in upper right corner.
Green - OK
Orange - One network command has been lost.
Red - Multiple network commands have been lost.
If network commands are being lost it is likely you are moving in/out of WiFi range.

8. If you have the SA-232D App running on multiple iOS Devices, they will all track and update the system state as one is changed.

9. At startup the network is polled to see that a connection to the AV25-2-RS232 Amplifier is established. An Alert is displayed if there is a connection problem. .

10. Changing Title or IP settings requires a password.

11. IP numbers and IP ports are configurable and must be set correctly by the user to agree with their network installation.

12. There are App Settings (under Apple Settings Icon) for -
a. Background color - 4 selections.
b. Number of zones - 1, 2 or 3. Zone selector will reflect this setting.
c. Hide setup button - restricts access to change setup.


Please contact DSPW for more information.