Quest Engineering QMotion QM 12MP, Руководство пользователя, Страница: 5 / 16

QM 12MP
User Manual
User Manual Q Motion Series
QM 12MP
3
Features
The QM 12MP has a number of features
designed to increase performance and
versatility for a professional mobile sound
environment. A great deal of attention was
paid to the details of the design to make
the QM 12MP both sonically excellent
and functionally suited to touring sound
reinforcement and also A/V rental markets.
High Powered Purpose Designed
Components
A very high powered three inch voice coil
high frequency driver is mounted in an impact
resistant frame support to the 1.5 inch high
frequency bi-radial CD horn. The result is
a very physically strong construction and
high fidelity high frequency response
that
needs almost no EQ correction to achieve
high SPL fold-back .
This achievement is
particularly impressive considering that no
specialized system processor is needed
to achieve high level vocal fold-back when
a standard dynamic vocal microphone
(commonly supplied by rental companies), is
used.
Functional Design
For maximum stage coverage effect, the
QM 12MP is manufactured in left and right
pairs. The recessed input panel is designed
to remove the problem of “strain induced
intermittent connections” that 90 degree
plug panels can cause on speaker leads.
Also the recessed connections remove
potential damage to connectors being
accidently trampled on a dark stage. Mirrored
patching inputs also mean short cable runs
when paralleling speaker boxes and a tidier
stage. Steel reinforced neoprene feet help
the QM 12MP “stick” to a stage and solve
the problem of fold-back wedges that “go
walking” on a vibrating timber stages.
Multiple Installation Options
Added versatility is provided by the addition
of aero-track rails on the QM 12MP to allow
stage techs to fly the boxes from lighting
truss or to fly as short throw, wide dispersion
front of house or delay speakers. Pole mount
is also possible with integrated 36mm pole
mount fitting.
Solid Build Construction
Built for a touring environment, the QM 12MP
is well suited to all professional applications.
The timber casing is reinforced birch ply with
a heavy gauge power-coated steel grill. Like
all QM series products, it is “built tough for a
tough world”.
QM 12MP Speakers As Fold-back
Monitors
If you use the loudspeaker on the floor as a
stage monitor, it is standard practice to use
at least a 12 dB per octave HPF (High Pass
Filter) set from 80 Hz to 95 Hz high pass.
This will allow more power for useful monitor
frequencies. Locating the wedge on the floor
will give a natural boost to bass frequencies
which can cause “muddiness” to the vocal
frequencies. If using a pair of wedges for a
single performer, locate the HF horns on the
outside of the pair to minimize interference
between the horns which can generate “HF
hot spots”.
Connections
Two Neutric Speakon model NL-4 connectors
are mounted in a recessed panel on the
rear surface of the box. This allows the
speaker box to be set flat against a wall
without physical interference to the speaker
connector.
The connector input is wired pin 1+ and •
pin 1-.
Pin 2 is not connected. •