D.A.S. Audio ST Series - Manual (Page 17)

1. INTRODUCTION
Thank you for purchasing a D.A.S. product. The ST series
represents more than 30 years of expertise in transducer
and enclosure design, achieving a series of systems that
utilise the most advanced sound reinforcement technology
to deliver outstanding audio performance and maximum
reliability.
Engineered from "real world" experience in system
design, with exceptional efficiency, pattern control and
intelligibility, this series provide designers with the primary
tools to solve the problems of sound reinforcement.
For those systems that require enclosures featuring
different configurations or smaller size, ST series may be
combined with other series from D.A.S. For instance, a main
theatre system based around ST could use a compact 8”
model from our Dynamics Series for distributed fills.
This manual contains the required information to
make the best use of the system you have purchased.
Please take the time to read it.
Our Web site at www.dasaudio.com contains
further support information such as enclosure and system
drawings,
data for modelling software, architectural
specifications and specification sheets.
1.1 Series' features
● High frequency compression drivers with pure titanium
diaphragms and Neodymium magnet structures.
● Rugged enclosures manufactured from Finnish Wisa®
plywood for rigidity and durability.
● Bar handles or hand locations for easy transport.
● Finished in catalysed polyurethane black paint that
provides protection against the elements and abrasion.
● Polyamide powder coated front grilles prevent corrosion
and maintain good looks. On the ST series, the grilles
are covered with acoustically transparent cloth for
protection against rain, dust and dirt..
● Dual NL8 Speakon input/output connectors.
● Flying points (eyebolt based or AncraTrack/eyebolt
according to model).
● Optional flying accessories.
● The ST-1510 is a three way bi-amplified system,
including one 15” speaker to reproduce the low-mid
range, a 10” speaker to reproduce mid frequencies and
a 1.5” exit compression driver for the high frequencies.
The system can be flow using eyebolts or special
rigging hardware attached to its Ancra Tracks rails.
● The ST-1510 coverage angles are: 60ºH x 50ºV.
● The ST-182 is a double 18” speaker system intended to
reproduce low frequencies. There are two 4”voice coil
speakers wired in parallel. The nominal impedance is
4ohm.
2. RIGGING
Warnings
Only experienced installers should fly speaker
boxes. Consult a certified professional if needed. Local
regulations may apply with regards to overhead suspension.
The working load limits in this manual are the
results of tests by independent laboratories. It is the user’s
responsibility to stay within safe limits.
Working load data for auxiliary hardware
mentioned in this manual have been obtained from their
manufacturers, who are responsible for the compliance to
their specifications.
To this date, there is no international standard
regarding the flying of acoustic systems. However, it is
common practice to apply 5:1 safety factors for enclosures
and static elements, and 7:1 for slings and elements
exposed to material fatigue due to friction and load variation.
Thus, an element with a breaking load limit of 1000 kg may
be statically loaded with 200 kg and dynamically loaded
with 142 Kg.
When flying a system, the working load must be
lower than the resistance of each individual flying point
in the enclosure.
Hanging hardware should be regularly inspected
and suspect units replaced if in doubt. This is important to
avoid injury and absolutely no risks should be taken on this
respect. It is highly recommended that you implement an
inspection and maintenance programme on flying elements,
including reports to be filled out by the personnel that will
carry out the inspections. Local regulations may exist that,
in case of accident, may require you to present evidence of
inspection reports and corrective actions after defects were
found.
No risks should be taken with regards to public safety.
When flying enclosures from ceiling support
structures, extreme care should be taken to assure the load
bearing capabilities of the structures so that the installation
is absolutely safe. Do not fly enclosures from structures
which are not safe. Consult a certified professional if
needed.
11 Manual del Usuario / User’s Manual Sound Touring /