ARX SPL 18 Manual

SPL 18
ABOUT THE SPL18
The SPL18 is an integrated bandpass
subwoofer and amplifier combination,
using a single 18” long throw driver. It
is designed to provide extended low
frequency from 35 Hz to 100 Hz to
enhance existing speaker systems.
The cabinet is built throughout from
premium grade void free plywood, with
extensive bracing to reduce unwanted
coloration, and is painted in multiple
textured coats of catalysed polyure-
thane.
Originally designed as a complementa-
ry sub bass cabinet for the SPL12, the
SPL18 can easily be used with other
speaker systems. Since its control elec-
tronics and amplifier are built-in, the
SPL 18 is the perfect add-on when
more low frequency output is required
- for any system!
All that’s required to vary the system
setup are some patch leads and an AC
power feed.
INSIDE INFORMATION
The all new amplifier design inside the
SPL18 uses existing proven analog
amplifier technology for predictable
operation in all professional applica-
tions.
Its transformer based power supply
and Mosfet drive circuitry both enable
a reduced parts count for long term
reliability. Plus, with their inbuilt self
regulation, Mosfets are accepted as
being the most thermally reliable and
predictable amplifier output stage avail-
able.
The 18” bass driver and the output of
the amplifier section are perfectly
INTEGRATED SELF POWERED
SUB LOUDSPEAKER SYSTEM
Applications:
Low Frequency enhancement of:
• Concert Sound Reinforcement
• Auditorium Installations
• Dance Clubs
• Houses of Worship
• Theatre and Film
• Corporate A/V
Features:
• Fully integrated amplifier/speaker combination
• High power and low distortion provide true sonic accuracy
• ISC system protection and CoolPort
• A flexible Sub Bass solution for all applications - just connect a
signal and AC power
matched to form a composite unit that
is designed to do only one thing, and do
it extremely well.
BENEFITS
The benefits, both acoustic and prac-
tical, of the amplifier/speaker combi-
nation are many:
• Improved speaker response. The
close-coupled design delivers
greater actual power at the speaker
and improves the damping factor.
• Thermal reliability. Thanks to our
unique heat exchange/cooling de-
sign, the harder the system is driven,
the more efficiently the heat ex-
changer operates.
• There is no power loss caused by
long runs of loudpeaker cable - typi-
cally 30 meters (100’) or more. All
the amplifier power is delivered to
the speaker.
• An elegant all in one solution - amp,
processor, speaker are combined.
There are no amp racks to store and
cool, no heavy speaker cabling to
run.
• Reduced number of connections con-
tributes to inherent low noise, and
greatly reduces the possibility of
ground loops.
OTHER FEATURES
• L and R mix to mono built in. With
separate inputs and loop through
outputs for Left and Right channels,
the SPL18 needs no special setting
up when run in a mono Sub configu-
ration.
• Phase Switch and Level control on
rear panel for compatibility with
existing systems
technology
TM
• Locking AC power connectors. By
using the Neutrik PowerCon de-
sign, the power connector locks to
the cabinet, avoiding the problem
of a connector vibrating loose dur-
ing a performance.
As well, an extra auxiliary AC power
output is fitted as standard, so that
systems can be powered in a serial/
daisy chain layout rather than a radial
manner, thus reducing the cabling re-
quired.
At ARX we have designed the SPL
series to be a true ‘building block‘ au-
dio system.
• It is truly cost effective, with no need
for speaker cabling, extra amplifiers
or amp racks.
• The modular concept means total
flexibility, with system inventory
kept at the most efficient level. To
increase or decrease the size of the
system, simply add or remove cabi-
nets as required.
• With a lower parts count than stan-
dard systems, and under- stressed
components used throughout, me-
chanical and electrical reliability is
consistent with world’s best prac-
tice.
To sum up, the SPL series successfully
combines state of the art design with
practical, proven technology to deliver
an integrated speaker/amplifier solu-
tion with all the dynamic impact and
transparent audio that today’s audi-
ences expect.