In professional installations, try to avoid placing the loudspeakers
on the console/desk meter bridge. Typically, this compromises
the frequency balance of the loudspeaker, especially in the lower
mid range. Mounting the speakers on stands behind the
console/desk usually gives better results.
If the balance is bass light the monitors can be moved
towards the back walls. If the balance is bass heavy try moving
the monitors away from walls/corners.
Stereo Listening.
The loudspeakers should be positioned
so they form an equilateral triangle with the listening position
(see Fig.1). Loudspeaker stand height should be chosen so the
acoustic axis is at ear level (see Fig. 2). For most seating
positions in professional scenarios, a suitable stand would be
900 - 1000mm or 35.5 - 39.4" tall. Suitable stands should be
heavy, rigid and resonance free.
If the loudspeakers have to be positioned so the acoustic axis is
above ear level, they can be tilted downwards.
5.1 or 7.1 Surround Positioning.
All loudspeakers should be
equidistant from the listening position – see Fig. 3: distance
L=C=R=LS=LR=RR=RS. For 5.1 systems, position the surround
speakers between110° and 150° degrees (ITU spec. is 110°). If
ideal positioning isn’t possible, position loudspeakers as close as
possible to ideal. Try to avoid placing subwoofers in corners, very
close to walls, and on the midpoint between two parallel walls
All rooms vary, and it is a good idea to experiment with both
listening and speaker position until a good compromise is
reached. For professional installations the requirements are often
very specific. Please consult an experienced professional
acoustician if necessary.
1 : D e s c r i p t i o n
The SCM12 Pro is a high performance 2-way passive nearfield
monitor. The monitor is equipped with a "bi-wire" connection
panel to enable separate amplification of mid/bass and high
frequency drivers if required.
2 : S a f e t y W a r n i n g s
1. Read instructions – all the safety and operating instructions
should be read before the appliance is operated.
2. Retain these instructions – the safety and operating
instructions should be retained for future reference.
3. Follow instructions – all operating and other instructions
should be followed.
4. Water and moisture - the appliance should not be exposed
to dripping or splashing and no objects such as vases, should
be placed on the appliance.
5. Heat – the appliance should be situated away from heat
sources such as radiators, stoves or other appliances that
produce heat.
6. Cleaning – the appliance should be cleaned only as
recommended by the manufacturer.
7. Servicing – the user should not attempt to service the
appliance beyond those measures described in the operating
instructions. All other servicing should be referred to
qualified service personnel.
3 : U n p a c k i n g & H a n d l i n g
n
The SCM12 Pro is an heavy item and should be handled with
care. Unpacking is best carried out on the floor or a large low
table, with adequate open space around the carton, preferably
close to their final position.
n
Open the carton and remove all loose items, leaving the
packing foam in place.
n
Up-end the carton so the open end is facing down.
n
Lift the carton off the contents (speaker & foam ‘end-caps’).
n
Lift the upper foam end cap off.
n
Lift each loudspeaker out of the foam end cap, remove from
the bag and position in the listening/control room.
4 : M o n i t o r P l a c e m e n t
The subjective performance of any monitor loudspeaker will be
influenced by the acoustic character of the room in which it is
used and its position within the room. Most often, monitors are
installed in rooms which are comfortable to sit and talk in.
A mixture of carpets, curtains and soft furnishings will help
ensure that the middle and high frequencies are reasonably well
controlled. There may, however, be low frequency problems;
either too much or too little bass. To minimise low frequency
problems:
n
Try to position speakers away from walls
n
Try to position speakers away from corners
n
Try not to position speakers exactly 1/4, 1/3, 1/2, 2/3, 3/4
between parallel walls
30°
30°
distance x
distance y
distance z
distance x = distance y = distance z
Loudspeaker Positioning - Stereo
Fig. 1
Stereo Loudspeaker Positioning
Fig. 2
Acoustic Axis
Fig. 3
5.1 and 7.1 Surround Loudspeaker Positioning
&%%$%%
#"!$ %
# !
