4. PLACEMENT AND MOUNTING
Place the speakers ahead of the microphones. Feedback
(howling) occurs when the microphones pick up the sound
that comes out of the speakers and feeds it back to the
system. Feedback can cause damage to your unit. If space is
limited, direct the speakers towards areas where there are no
microphones to minimise feedback.
When using turntables, place the speakers far from them. If
the speaker signal is picked up by the stylus and re-amplified,
low frequency howling will occur. The use of a very heavy
base for the turntable is recommended.
Tripod use
Models DS-108, DS-112 and DS-115 feature a tripod socket
for use with standard 35-mm tripods such as the DAS TRD-2.
Be careful not to raise the units too high on the tripod, as they
may become unstable. Do not use a tripod on sloped surfaces.
Place the speakers as high as possible. For best results, try to
place the high frequency unit above the audience's heads. If
the loudspeakers are located too low, the listeners at the end
of the room will not hear quality sound.
Use on SUB-18F
The top panel of model SUB-18F features a tripod socket for
use with standard 35-mm poles. This allows pole mounting for
systems that have tripod capability. The TRD-4 is a 35-mm
pole that raises the top box. Do not mount systems this way
on sloped surfaces.
Stage monitor use
The angle on the back of models DS-112 and DS-115 allows
for floor monitor use without extra accessories. The
illustrations show box operation angles.
Mounting to walls and ceilings
Optional wall and/or ceiling mounting brackets are available
for all full-range models. These are detailed on the
"Specifications" section.
Hanging (flying)
DS-112 and DS-115 provide three M8 threaded flying points
on the top of the box , two on the bottom and four rigging
points on the back. DS-108 provides three M8 threaded flying
points on the bottom of the box and four rigging points on the
back. Factor-12 provides two M8 threaded flying points on the
bottom of the box and four rigging points on the back.
Only experienced installers should fly speaker boxes. When
flying enclosures from ceiling support structures, extreme care
Factor/DS
should be taken to assure the load bearing capabilities of the
structures, so that the installation is absolutely safe.
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.
The ANL-1 set is a set of four eyebolts and four carabiners for
flying that is available separately. The following illustration
shows the detail of the ANL-1's components.
Up to three full-range DS series boxes can be flown vertically
from one another. Factor-12 units can only be flown
individually.
The following illustration shows flying of a DS-115 enclosure.
It can be seen that the two front upper points are used for
hanging, using the back upper point for vertical aiming.
Hang a DS-112 the same way, as well as a DS-108, although
the latter needs to be flipped upside down since the hanging
points are located on the bottom of the box. Factor-12 is also
flown from the lower hanging points, using a point on the back
for vertical aiming.
User's manual
Manual del usuario /
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