All material © 2007. Martin Audio Ltd. Subject to change without notice.
When using poles or stands, the following precautions are advised:
Ensure that the stand will support the weight of the speaker by checking the stand manufacturers
rating. (See the Section 10 – Technical Specifications - for individual Bl weights and
dimensions)
Make sure that the stand is placed on a level surface and that its legs are fully extended
Do not place more than one speaker on each stand
Run cables so that they do not present a trip hazard which could pull the speaker over
When used outdoors in the wind, it may be necessary to add some weight to the base of the stand
When using a pole mount with a sub-bass system, observe similar precautions.
4.2 Stacking
Ensure that the floor or stage is level and solid
Do not stack speakers too high outdoors where winds could topple the stack
Be aware that speakers producing very high power levels can move or creep. To avoid this, place
friction material between the floor and speaker and between each speaker.
4.3 Rigging
and
suspension
WARNING:
Suspending the system should only be done by qualified personnel following safe rigging practices. Secure
fixings to the building structure are vital. Seek help from architects, structural engineers or other specialists
if in any doubt.
Blackline
+
Series enclosures are designed for portable applications, but can be suspended singly by means
of the threaded inserts provided.
Enclosures are fitted internally with steel corner reinforcement brackets, where necessary, to ensure that
each cabinet is strong enough to be hung from its top.
Never suspend one enclosure from another to form an array or cluster using these fittings
The common practice of using commercially available eye bolts for suspension should only be
undertaken with great caution. Only forged shoulder eye bolts should be considered and it is
important that the thread length is at least 30mm
Formed eye bolts i.e. those which are formed from a steel rod bent into an eye are not
recommended
A flat washer should be inserted between the eyebolt and the enclosure
Eye bolts are strongest along the thread axis. Angling the enclosure will result in an angle pull and
it is important to use eye bolts that are safe in these circumstances.
5 Amplification
Choosing a power amplifier
Martin Audio loudspeakers are capable of recreating musical dynamics accurately and with incredible
impact if powered correctly. Martin Audio loudspeaker power ratings are quoted for
AES
power - a long-
term average power rating, and
Peak
power – a short-term burst capability.
Moving coil loudspeakers can be run up to their
AES
power rating continuously and up to the higher
Peak