KV2 Audio EX1.8 - Manual (Page 3)

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EX1.8 USER’S GUIDE P. 3
HOW TO USE THIS MANUAL
As you read this manual, you’ll find figures and
diagrams to help you understand and visualize what
you’re reading. You’ll also find numerous icons that
serve as cues to flag 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 filter,
phase and independent output level controls provide
high precision, easy to use system integration circuitry.
Electronics
Amplifier power, electronic crossovers, equalization
and speaker protection are integrated into the EX1.8’s
amplifier 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 amplifier has been specially developed
for the EX1.8 . The new design improves overall system
efficiency to over 90% and delivers 1000 watts of
continuous power.
KV2 Audio has developed an amplifier topology that
possesses two unique characteristics that are critically
important for high performance, active subwoofer
systems. The EX1.8 amplifier topology delivers very
high efficiency and generates minimal thermal losses
allowing the amplifier 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
amplifier 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-
fier technology, the EX1.8 amplifier provides extremely
high efficiency with low losses and delivers the highest
woofer control by delivering higher current levels
under “phase shift” conditions.
The amplifier module is fitted onto a large format,
finned, aluminum alloy heat sink providing high flow,
passive cooling and eliminating standard maintenance
cycles associated with forced cooled amplifier designs.
The entire mechanical assembly is fitted 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 amplifier technology,
a precision manufactured state of the art woofer
component and the innovative implementation of a
high efficiency, 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 amplifier
topologies, transducer designs and electronic control
technologies that are closely tied to a passion for
taking performance to the next level.
“NOTE” identifies an impor-
tant or useful piece of
information relating to the
topic under discussion.
“TIP” offers 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