ISP Technologies SA118 - Manual (Page 3)

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Caution: Exposure to extremely high noise levels can
cause permanent hearing loss.
The SA118 speaker system is capable of producing in excess of 126db SPL at 1 meter.
Continued exposure to noise levels in excess of 90db may cause permanent hearing loss.
Below is a chart of the OSHA (Occupational Safety & Health Administration) regulations for
Occupational Noise Exposure. Please note: OSHA requires hearing protection for any
work environment when the sound levels exceed those shown in Table G-16 when
measured on the A scale of a standard sound level meter at slow response.
INTRODUCTION
Thank you for purchasing ISP Technologies SA118 active subwoofer system. The SA118
is a high output active subwoofer system for high SPL sound reinforcement applications.
The SA118 was designed with a 400-watt 15-inch woofer. The SA118 incorporates a High
Current D-CAT

power amplifier system capable of producing upwards of 600 watts RMS
as a stand-alone system. The SA118 can deliver over 900 watts RMS when connected to
one of ISP Technologies passive satellite subwoofers, SP118 or SP115. The amplifier
receives its input signal from an internal fourth order crossover network specifically
designed to provide optimized phase and frequency response for a composite system. The
internal amplifier is based on ISP Technologies patent pending D-CAT (Dynamic Current
Amplifier Technology) amplifier technology. The D-CAT technology is capable of delivering
extremely high output current providing an improvement in transient response, output
current, and a noticeable improvement in PUNCH. The D-CAT amplifier technology utilizes
a monolithic power amplifier driver that reduces parts count and greatly improves reliability.
The D-CAT amplifiers provide improved reliability by including short circuit and over
temperature protection.
The SA118 offers XLR balanced inputs and XLR balanced full range and High Pass
outputs allowing connections for multiple speakers in a system. A sensitivity adjustment
knob allows you to adapt the SA118 speaker for a wide range of common signal levels.
The SA118 subwoofer cabinet is made of high quality 13 ply Baltic birch plywood with a
durable spray on black finish for long life.