ISP Technologies SA118 User Manual

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IMPORTANT SAFETY INSTRUCTIONS!

Please read this very carefully before operating this unit

 Read ALL instructions carefully before using this unit.
 Do not operate this unit near water, in the rain or where there is moisture.

If this warning is ignored a serious electrical shock or death may occur.

 Do not attempt to service this unit. No user serviceable parts inside. Refer

servicing to qualified, ISP approved service personnel.

 Never remove or defeat the ground connection on the power cord of this

unit.

 Care should be taken to avoid spilling any foreign objects or liquid into this

unit.

 This active speaker system has an internal amplifier and an externally

visible heatsink located on the back of the speaker for cooling of the
internal amplifier. Care should be taken to avoid placing this active
speaker in a location where the external heatsink does not allow proper
cooling of the internal amplifier. Avoid placing this system close to other
heat sources. The external heatsink may reach high temperatures under
normal use. Do not block the external heatsink with any other object.
Make certain there is proper ventilation for the external heatsink when is
use.

 Do not drive the SA118 into excessive heavy distortion for an extended

period of time to avoid premature speaker failure.

 Failure to follow these instructions may void the warranty.

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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.

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PLACEMENT

The SA118 is designed to sit directly on the floor or stage. Do not position or mount the
cabinet where it can tip over and fall on someone. Do not attempt to mount the cabinet on

speaker stands. Do not attempt to ‘fly’ (suspend by cables, chains, ropes, etc.) the cabinet.

It was not designed for flying. Position it only on a flat, stable surface where it is not in
danger of tipping over.

Also, note that the placement of the cabinet relative to floors and walls will affect the low

frequency response. Placing it closer to the floor and walls will reinforce the low frequency
response. Also, make sure that adequate space (at least 6 inches) is left behind the
cabinet for airflow over the internal amplifier heatsink.

A pole mount socket is provided on the top of the SA118 for mounting one of ISP
Technologies Active Series Tripower 12 or Tripower 12XL three-way speakers. A standard
1-3/8 inch pole is required for mounting the Tripower speakers. To avoid accidents and
insure stability this pole length should not exceed 2 feet in length.