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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.
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REAR PANEL DESCRIPTION
1. LEFT HIGH PASS BALANCED OUTPUT- This XLR male connector provides a
balanced high pass output from the left channel input. The high pass frequency
is set at 100 Hz with a 24 dB per octave roll off.
2. RIGHT HIGH PASS BALANCED OUTPUT- This XLR male connector provides
a balanced high pass output from the right channel input. The high pass
frequency is set at 100 Hz with a 24 dB per octave roll off.
3. LEFT FULL RANGE BALANCED OUTPUT- This XLR male connector provides
a balanced full range output from the left channel input. This connector may
used to daisy chain the full range signal to additional powered sub cabinets
such as another XMAX112 or SA115.
4. RIGHT FULL RANGE BALANCED OUTPUT-- This XLR male connector
provides a balanced full range output from the right channel input. This
connector may used to daisy chain the full range signal to additional powered
sub cabinets such as another SA 118 or SA115.
5. INPUT/PHASE SWITCH- This switch will function to bypass the internal
crossover feeding the input to the internal power amp of the XMAX212
subwoofer. On other models, this will control the phase of the input signal
feeding the internal amplifier but is configured to by pass the crossover for the
XMAX112 subwoofer. This will allow the use of an external crossover to
configure the system. This switch will not affect any of the balanced outputs.
6. INPUT SENSITIVITY- This control determines the overall input level of the
signal to the power amp section of the subwoofer cabinet. Adjusting this level
will not affect the level of the signal passing through to the full range or the high
pass outputs.
7. LEFT BALANCED INPUT- This female XLR connector provides an input for the
left channel signal source. This will also feed the left channel signal to the left
high pass and left full range balanced outputs.
8. RIGHT BALANCED INPUT- This female XLR connector provides an input for
the right channel signal source. This will also feed the right channel signal to
the left high pass and right full range balanced outputs.
9. EXTENTION SPEAKER OUTPUT- THIS OUTPUT IS NOT FUNCTIONAL ON
THE XMAX112 SUBWOOFER.
10. POWER SWITCH- This switch provides power to the subwoofer amp section.
Make sure that the input sensitivity control is set to minimum upon power up
11. POWER INLET MODULE- This module provides a connection for the power
cord and also houses the mains fuse. (See Fuse Replacement Section)
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FUSE REPLACEMENT
1. Use a small screwdriver as shown to slide the fuse cover out
from the power inlet module. The fuse can be found inside the
fuse cover module after it is pulled out.
NOTE: A SMALL COMPARTMENT IS ALSO PROVIDED WITHIN THE FUSE COVER
2. After replacing the fuse with another of identical specifications,
MODULE FOR STORING A SPARE FUSE.
push the fuse cover module fully back into place, ensuring that
the fuse has snapped onto the fuse holder inside the power inlet
module.
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CONNECTION DIAGRAM
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The ISP Sub Series has balanced XLR and inputs and outputs configured to AES standards
(Audio Engineering Society). These connections are connected in a loop through configuration
from the inputs to the full range outputs and will accept a balanced line-level input. The
standard phase configuration is that pin 2 is (+), pin 3 is (-), and pin 1 is shielded ground on the
XLR.
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SPECIFICATIONS
System
Frequency Range 35Hz - 300Hz
Frequency Response (-3dB) 41Hz - 100Hz
Peak Output @ 1m 133 dB SPL
Crossover Point 100Hz (24db per Octave)
Input Type Balanced differential
Input Impedance 10K ohms
Thermal Protection Output Drivers have internal protection, self resetting. Heatsink
temperature monitored and input is muted if safe temperature is exceeded,
self-resetting. Transformer has internal thermal fuse, self-resetting.
Transducer
Low-Frequency Transducer
Diameter 1x12”
Voice Coil Diameter 4” (76.2mm)
Power Handling 500 watts RMS each
D-CAT Technology Power Amplifier
Low-Frequency Amplifier
Power Output 1400 watts RMS
THD 0.06% typical
Line Input Power
Voltage 120VAC, 60 Hz
Current 10 amps max 5 amps typical
Power 1400 watts
Physical
Height 35.8”
Front Width 22.7”
Depth 36”
Weight 165 lbs.
Enclosure 18mm thick, 13 ply Baltic Birch plywood
Mounting Methods Floor mount
Note: D-CAT and XMAX112 are trademarks of ISP Technologies LLC
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THERMAL CONDITIONS
The ISP XMAX112 Sub Series is capable of producing 1000 watts at full power. This generates
heat that must be dissipated in order to maintain reliability and insure the amplifier components
stay within their operating temperature specs. To accomplish this, the amplifier is mounted onto
a heatsink that requires air movement at the rear of the cabinet. It is recommended that the rear
of the cabinet have at least 6 inches of clearance from any obstruction to allow proper ventilation
to occur.
The internal amplifier is cooled with a small fan. The XMAX112 is designed such that the
temperature should never exceed a level where the global thermal protection becomes active. If
the internal fan fails or the ventilation system is blocked so that airflow is impeded the global
thermal protect may activate, which will attenuate the signal 40db when the temperature
exceeds a preset point. When the temperature drops below a certain point, full signal will be
restored. Tests have shown under extreme conditions that cycling will occur (40 sec. ON, 20
sec. OFF). If the global thermal protection becomes active, determine the cause for the lack of
proper cooling. Correcting the problem will allow the XMAX112 to continue correct operation.
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WARRANTY AND SERVICE
The Internal Circuitry is fully guaranteed to be free of defects under normal use and service
for a period of three years from the date of purchase. The Speakers and Cabinet that are
used in this product are fully guaranteed to be free of defects under normal use and service
for a period of three years.
Any damage resulting from the misuse or the failure to follow the precautions and instructions
will void the warranty.
In the event that the unit needs to be repaired. Please return the unit to ISP Technologies
directly. Simply repack the unit, send a copy of the original receipt, a note stating the
problem, and send it to:
ISP TECHNOLOGIES, LLC.
5479 PERRY DRIVE SUITE B
WATERFORD, MI. 48329
Attn: Repair Dept.
All shipping charges must be fully prepaid.
ISP will not be responsible for any damages incurred in shipping of any unit. Any claim will
need to be settled with the shipping company.
The warranty will be voided if the serial number has been tampered with in any way.
Should you have any questions for the repair department prior to returning the product
please call 1-(248)-673-7790
NOTE: This Product may be covered under one or more of the following patents or patents
pending: 7,035,413; 6,944,305; 6,931,134; 6,831,514; 6,091,013
NOTE: If it is determined that the power amp module has failed, it is possible for an ISP
certified service center to remove the module from the cabinet by removing the mounting
screws and disconnecting the speaker terminals and the transformer. The module may be
sent back to ISP separately. Please contact ISP for technical support to help determine if the
amplifier module may be defective.
ISP TECHNOLOGIES, LLC.
5479 PERRY DRIVE SUITE B
WATERFORD, MI. 48329
248-673-7790
WWW.ISPTECHNOLOGIES.COM
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