Manual

Icons used include:
EX1.8 USER’S GUIDE P. 3
HOW TO USE THIS MANUAL
As you read this manual, you’ll nd gures and
diagrams to help you understand and visualize what
you’re reading. You’ll also nd numerous icons that
serve as cues to ag important information or warn
you against improper or potentially harmful activities.
The EX1.8 can be used in a variety of system applica-
tions. It can add high performance bass reproduction
to active speaker systems such as KV2 Audio’s EX12
loudspeaker, or it can be easily used with passive
speaker systems. The built in electronic high pass lter,
phase and independent output level controls provide
high precision, easy to use system integration circuitry.
Electronics
Amplier power, electronic crossovers, equalization
and speaker protection are integrated into the EX1.8’s
amplier module. On-board electronics ensures fast,
easy set up and complete control making it easy to set
up and provides long-term reliability. An improved
version of KV2 Audio’s switch mode, current enhancing
low frequency amplier has been specially developed
for the EX1.8 . The new design improves overall system
eciency to over 90% and delivers 1000 watts of
continuous power.
KV2 Audio has developed an amplier topology that
possesses two unique characteristics that are critically
important for high performance, active subwoofer
systems. The EX1.8 amplier topology delivers very
high eciency and generates minimal thermal losses
allowing the amplier to deliver extremely high power
levels reliably whilst employing a simple cooling
system.
Secondly, in order to reproduce low frequency infor-
mation with high transient content and extend the
operational boundaries of the acoustic design, the
amplier needs to deliver an extraordinary amount of
current in order to keep the woofer’s high mass under
control. This is especially true under typical “phase
shift” conditions, in which the amount of the current
requirement is sometimes doubled. Through the
implementation of a proprietary, switch mode ampli-
er technology, the EX1.8 amplier provides extremely
high eciency with low losses and delivers the highest
woofer control by delivering higher current levels
under “phase shift” conditions.
The amplier module is tted onto a large format,
nned, aluminum alloy heat sink providing high ow,
passive cooling and eliminating standard maintenance
cycles associated with forced cooled amplier designs.
The entire mechanical assembly is tted on a mechani-
cal suspension system that isolates low frequency
energy and ensures long-term reliability.
Introducing the EX1.8
The EX1.8 is a high output, active subwoofer system.
Through the use of proprietary amplier technology,
a precision manufactured state of the art woofer
component and the innovative implementation of a
high eciency, twin chamber acoustic design, the
EX1.8 delivers tight, fast, controlled bass response at
very high output levels. This system falls directly out
of KV2 Audio’s philosophy to develop products with
increased dynamic range, very high output and a
consistent sound character no matter what the
output level.
The system establishes new performance standards
for an active powered subwoofer that can only be
achieved through the integration of new amplier
topologies, transducer designs and electronic control
technologies that are closely tied to a passion for
taking performance to the next level.
“NOTE” identies an impor-
tant or useful piece of
information relating to the
topic under discussion.
“TIP” oers a helpful tip
relevant to the topic at
hand.
“CAUTION” gives notice
that an action can have
serious consequences and
could cause harm to
equipment or personnel,
delays, or other problems.
INTRODUCTION