The Guardian2 is Amina’s all-new two-channel active loudspeaker
protection system for low impedance Amina loudspeakers. The
AGP3/5/7 variants are supplied factory pre-configured, providing
fixed protection thresholds for a specific loudspeaker model which
cannot be altered.
Please see the ‘Guardian2X’ Datasheet for details on the site-
configurable variant of the Guardian2.
The 2-stage active circuit design responds to RMS and peak audio
events in an instant, preventing any opportunity for Amina invisible
loudspeakers to be overloaded with excess power from audio
system events or user error, in an appropriately configured audio
system.
RMS or average voltage protection continually
monitors the power delivery over a short time window
to detect any potential for thermal overload.
Peak voltage protection continually monitors for
excessively powerful short-duration peaks which may
otherwise have the potential to cause the speaker to
exceed its mechanical limits.
If and when the peak or RMS monitoring thresholds are exceeded,
the signal to the speaker is immediately attenuated, returning to a
normal state once safe to do so
