Sound System Protection in 2 easy steps...
Step 1: Insert key to ‘unlock’ front panel and adjust VU meter
pre-set until the peaks of the incoming audio illuminate the red endstop 0dB LEDs.
Step 2: Adjust max output level
pre-set until sound system volume reaches the maximum permitted SPL as
specified by the installer or client. Remove key... and sleep soundly.
The new Drawmer SP2120 Speaker
Protector offers both strict level control and tremendous peace of mind to
the contractor, installer and venue in the knowledge that only the
maintenance engineer and the venue manager hold a key. As its name
suggests the 1U, two channel processor eliminates the possibility of ‘unauthorised’
excessive sound pressure levels on speaker systems which could result in
damage to both chassis drivers and amplifier electronics. The unit also
gives a wide variety of venues, such as clubs, theatres, pubs, schools,
universities etc. the opportunity to
The SP2120 greatly benefits from Drawmer’s 25 years experience in designing industry standard dynamic processing devices. Its signal path combines a mixture of ‘multiple time constant’ circuitry and automatic gain control (AGC) which allow small overloads to sound louder - even though they’re not. Its concept and development was encouraged by Drawmer distributors and installers dissatisfied with other protection systems currently available. These often take the form of a crude switch, either turning off the power or disconnecting the speakers, both of which are ‘disruptive’ in any event.
The SP2120 is intended to be inserted in the sound system immediately prior to
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