iSP Xmax 112, Owner'S Manual

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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 4
th
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.