ON POINT AUDIO IS NOT RESPONSIBLE FOR FAILURES RELATED TO NON-
COMPLIANCE WITH LOCAL AND NATIONAL CODES AND SAFE SUSPENSION
PRACTICE.
DO NOT ATTEMPT TO SUSPEND THIS PRODUCT WITHOUT READING AND
UNDERSTANDING THE DOCUMENT “Suspension of On Point Audio Products”. THIS
DOCUMENT MAY BE FOUND AT: www.onpointaudio.com
ALL ASSOCIATED RIGGING IS THE RESPONSIBILITY OF OTHERS.
USING THE OPA 15 Active (Application and Trouble Shooting Tips)
The OPA 15 Active is a high-quality professional sound reinforcement system designed
for use in indoor applications. Some basic precautions will insure long-term reliability.
EQUALIZATION AND GAIN
The OPA 15 Active has all the required equalization and gain functions included in its
internal Digital Signal Processor (DSP). Both the equalization and gain functions have
been optimized for flat frequency response and maximized system dynamics. The OPA
15 Active does not have user-settable external gain or EQ.
All system gain should be set via the outboard mixing console. The mixing console
should be capable of providing sufficient output levels to supply the necessary voltage
levels to drive the OPA 15 Active to full power and still insure adequate headroom in the
mixing console.
The OPA 15 Active will produce full power with a 1.5 V RMS input signal.
If additional equalization is required, care should be taken to avoid excessive EQ in any
frequency band, but particularly at low frequencies. Excessive equalization can produce
“band selective” clipping and distortion. All EQ boost levels should be monitored if
system distortion is present.
Applications that require excessive low frequency equalization are almost always an
indication that a sub woofer is required. On Point Audio offers the OPA Sub Active. The
OPA Sub Active is a companion product for use with the OPA 15 Active and it will
provide substantial low-frequency acoustic output.
DISTORTED SOUND
When input levels to the OPA 15 Active exceed 1.5 V RMS, the internal dynamics
processing functions will engage and provide protection for the system. However, it is
still possible to “overdrive” the input section of the enclosure. If distorted sound is
present the following steps should be taken:
