User manual

1. Unpacking and Handling
The SCM50, 100 and 150 are large, heavy items and
should be handled with care. Always employ a
second person to assist in moving it. Unpacking
them requires a large, open space, preferably near
their final position.
• First lay the carton down and open the flaps on
its side. While holding the flaps apart turn the
carton over so the open side is on the floor.
• Lift the outer carton off the inner packing.
• Remove the end pad from the bottom of the
monitor.
• The monitor can now be stood upright and the
remainder of the packaging removed.
2. Monitor Placement
The subjective performance of any monitor
loudspeaker will be fundamentally 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 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 the
monitors should be kept away from corners or
walls. Start with them positioned on appropriate
stands around 1 metre from the side walls and 2
metres from the back. If the balance is bass-light,
the monitors can be moved towards the back
walls. All rooms vary and it is a good idea to
experiment with both the listening and speaker
position until a good compromise is reached. For
professional installations the requirements are
often very specific. Please consult with an
experienced professional acoustician if necessary.
Monitors with an asymetric driver array should be
positioned such that the midrange driver and tweeter
are inboard.
3. Amplification
The choice of partnering amplifier for the monitors will have significant influence on
the performance of the system. Consider the following when selecting the amplifier:
• With any passive loudspeaker there is a trade-off between low frequency
extension and sensitivity. The monitors extended low frequency response means
that its sensitivity is relatively low. It is advisable therefore to select an amplifier of
relatively high power capabilities. Use of an under specified amplifier will result in
the system sounding distorted at high levels and may risk damage. Valve or solid
state amplifiers with high output impedance should be auditioned carefully to
establish that their characteristic reduced damping at low frequencies is
acceptable.
• Thanks in part to Super Linear technology and underhung voice coil construction
the monitors not only demonstrate extremely low distortion at all levels but also
a greatly enhanced effective dynamic range. This exceptional distortion
performance, also combined with very wide dispersion, will ruthlessly reveal
deficiencies in ancillary equipment. It is advisable therefore to audition the
monitors with your proposed amplifier and ancillary system.
4. Connection
The monitors are equipped with a “tri-wire” connection panel that enables separate
amplification of the bass driver, mid driver and tweeter. Remove the linking bars
between the three pairs of terminals if you wish to take advantage of the tri-wire
facility.
The terminals can accomodate either stripped cable ends or 4mm plugs.Always use
good quality speaker cable with a 2.5mm
2
minimum cross sectional area per
conductor (79 strand). Cable of a smaller cross sectional area or fewer strands is
unsuitable. For cable runs longer than 10m use a significantly heavier gauge cable.
Consult your dealer or consultant for specific cable recommendations.
Ensure that the positive and negative terminals on each connection panel are
connected back to the corresponding positive and negative terminals on the amplifier.
SCM50/100/150SL
6
Installation