Third-Party Control of Crown Amplifiers
Frequently Asked Questions
Written by Gary Brindley
Updated at September 4th, 2026
Table of Contents
Brand:
- Crown
Models:
- Various
Is it possible to control an amplifier through third party control and receive feedback?
Control and feedback requires implementation of the HiQnet protocol. The HiQnet protocol comprises multiple message types with large headers to achieve device discovery, session start, keep-alive, acknowledgement , session end, etc...
HiQnet third party programmer technical support guide is available at the following link: https://help.harmanpro.com/hiqnet-third-party-programmer-documentation
Here is a link on how to obtain third party control strings directly from Crown amplifiers. https://help.harmanpro.com/obtaining-control-strings-in-crown-amps
HiQnet protocol is not a public API and because of that, there is no programming support for third party devices available from Harman Professional.
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