iSP Xmax 112 Owner's 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 a heatsink located

inside the back of the cabinet with an internal fan for cooling of the internal
amplifier. Care should be taken to avoid placing this active speaker in a
location where the fan in blocked and does not allow proper cooling of the
internal amplifier. Avoid placing this system close to other heat sources.
Do not block the fan or underside ventilation holes with any other object.
Make certain there is proper ventilation for the internal amplifier when is
use.

 Do not drive the XMAX112 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 XMAX112 speaker system is capable of producing in excess of 136db 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.

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INTRODUCTION

Thank you for purchasing ISP Technologies XMAX112 active subwoofer system. The
XMAX112 is a high output active subwoofer system for high SPL sound reinforcement
applications. The XMAX112 was designed with a 500-watt 12-inch woofer that is horn
loaded. The XMAX112 incorporates a High Current D-CAT power amplifier system
capable of producing over 1000 watts RMS power. The amplifier receives its input signal
from an internal 4th 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 pre-driver that reduces parts count and greatly improves reliability. The D-CAT
amplifiers provide improved reliability by including several protection modes including and
over temperature protection global limiting and transformer thermal protection.

The XMAX112 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 XMAX112 speaker for a wide range of common signal levels.
The XMAX112 subwoofer cabinet is made of high quality 13 ply Baltic birch plywood with a
durable spray on black finish for long life.

PLACEMENT

The XMAX112 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. The highest level of performance will be achieved when the
XMAX112 is used in pairs and mounted at floor level against a back or sidewall.

Also, note that the placement of the cabinet relative to floor 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.