Pd 178.930, 178.933, 178.936, 178.938 Instruction Manual

PDSM-series Active Studio Monitor

Ref. nr.: 178.930; 178.933; 178.936; 178.938

INSTRUCTION MANUAL
GEBRUIKSAANWIJZING

BEDIENUNGSANLEITUNG

V1.0

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ENGLISH

Congratulations to the purchase of this Power Dynamics product. Please read this manual thoroughly prior to using the unit in
order to benefit fully from all features.

Read the manual prior to using the unit. Follow the instructions in order not to invalidate the warranty. Take all precautions to
avoid fire and/or electrical shock. Repairs must only be carried out by a qualified technician in order to avoid electrical shock.
Keep the manual for future reference.

- Prior to using the unit, please ask advice from a
specialist. When the unit is switched on for the first time,
some smell may occur. This is normal and will disappear
after a while.

- The unit contains voltage carrying parts. Therefore do
NOT open the housing.

- Do not place metal objects or pour liquids into the unit
This may cause electrical shock and malfunction.

- Do not place the unit near heat sources such as
radiators, etc. Do not place the unit on a vibrating
surface. Do not cover the ventilation holes.

- The unit is not suitable for continuous use.

- Be careful with the mains lead and do not damage it. A
faulty or damaged mains lead can cau se ele ctri cal sh oc k
and malfunction.

- When unplugging the unit from a mains outlet, always
pull the plug, never the lead.

- Do not plug or unplug the unit with wet hands.

- If the plug and/or the mains lead are damaged, they
need to be replaced by a qualified technician.

- If the unit is damaged to such an extent that internal
parts are visible, do NOT plug the unit into a mains outlet
and DO NOT switch the unit on. Contact your dealer. Do
NOT connect the unit to a rheostat or dimmer.

- To avoid fire and shock hazard, do not ex pose the unit to
rain and moisture.

- All repairs should be carried out by a qualified technician
only.

- Connect the unit to an earthed mains outlet (220­240Vac/50Hz) protected by a 10-16A fuse.

- During a thunderstorm or if the unit will not be used for a
longer period of time, unplug it from the mains. The rule
is: Unplug it from the mains when not in use.

- If the unit has not been used for a longer period of time,
condensation may occur. Let the unit reach room
temperature before you switch it on. Never use the unit in
humid rooms or outdoors.

- To prevent accidents in companies, you must follow the
applicable guide lines and follow the instructions.

- Do not repeatedly switch the fixture on and off. This
shortens the life time.

- Keep the unit out of the reach of children. Do not leave
the unit unattended.

- Do not use cleaning sprays to clean switches. The
residues of these sprays cause deposits of dust and
grease. In case of malfunction, always seek advice from
a specialist.

- Do not force the controls.

- This unit is with speaker inside which can cause
magnetic field. Keep this unit at least 60cm away from
computer or TV.

- This unit is with built-in lead-acid rechargeable battery.
Please recharge the battery every 3 months if you are
not going to use the unit for a long period of time. Or the
battery may be damaged.

- If the battery is damaged please replace with same
specifications battery. And dispose the damaged battery
environment friendly.

- If the unit has fallen, always have it checked by a
qualified technician before you switch the unit on again.

- Do not use chemicals to clean the unit. They damage the
varnish. Only clean the unit with a dry cloth.

- Keep away from electronic equipment that may cause
interference.

- Only use original spares for repairs, otherwise serious
damage and/or dangerous radiation may occur.

- Switch the unit off prior to unplugging it from the mains
and/or other equipment. Unplug all leads and cables
prior to moving the unit.

- Make sure that the mains lead cannot be damaged when
people walk on it. Check the mains lead before every use
for damages and faults!

- The mains voltage is 220-240Vac/50Hz. Check if power
outlet match. If you travel, make sure that the mains
voltage of the country is suitable for this unit.

- Keep the original packing material so that you can
transport the unit in safe conditions.

This mark attracts the attention of the user to high voltages that are present inside the housing and that are of sufficient
magnitude to cause a shock hazard.

This mark attracts the attention of the user to important instructions that are contained in the manual and that he should
read and adhere to.

The unit has been certified CE. It is prohibited to make any changes to the unit. They would invalidate the CE certificate and
their guarantee!

NOTE: To make sure that the unit will function normally, it must be used in rooms with a temperature between 5°C/41°F and
35°C/95°F.

Electric products must not be put into household waste. Please bring them to a recycling centre. Ask your local aut horities or your
dealer about the way to proceed. The specifications are typical. The actual values can slightly change from one unit t o the other.
Specifications can be changed without prior notice.

Do not attempt to make any repairs yourself. This would invalid your warranty. Do not make any changes to the unit. This would also invalid

your warranty. The warranty is not applicable in case of accidents or damages caused by inappropriate use or disrespect of the warnings
contained in this manual. Power Dynamics cannot be held responsible for personal injuries caused by a disrespect of the safety

recommendations and warnings. This is als o applicable t o all damages in whatever form.

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Level controls:

• With the volume control it’s possible to adjust the input sensitivity, turn left for decreasing the input sensitivity and
turn right for increasing the input sensitivity.

• Use the treble control for high frequency adjustment, turn left for decreasing high frequencies and turn right for
increasing high frequencies.

• Use the bass control for low frequency adjustment, turn left for decreasing low frequencies and turn right for
increasing low frequencies.

Connecting your system:

• Make sure your complete system is turned off and all faders and controls should be set at their minimum before
connecting the speakers.

• Use the correct cables for your speaker system.

• Don’t forget to connect the passive speaker to the speaker output of the active speaker.

• After all the connections are made, you are able to turn on the system.

Speaker positioning:

The speakers have to be placed well into the room in order to maximize the delay of reflections and to remove their
effects from the sphere of spatial perception.
The perfect and most effective distance lies between 85 cm (33 inch) and 1.5 m (5 ft) - depending on the listener‘s
position. However, you can also obtain very good results at a distance of 70 cm (28 inch). An easy way to home in
on the right distance is to sit down in the listening seat and ask a friend to hold up a mirror and move it along the
wall. As soon as you see the speaker in the mirror, you know where the acoustic reflection comes from. Now
measure the distance between the speaker and mirror, and mirror and listening seat, then subtract the distance
between the speaker and listening seat. You will see from the result whether you are above or below the critical
distance of 1.7 m (5.6 ft).
If you are well below this value, you can try to dampen or diffuse critical room resonances in order to reduce their
effects. In the case of dampening critical resonances, part of the energy is destroyed by friction. For instance,
heavy fabrics can be hung a few centimeters from the wall which dampen the reflections. If you want to go a step
further, you can even use special dampening material. In this case we recommend that you use the heavy fabrics.
We can assure you that an area of 1 m (3.3 ft) height and 0.5 m (1.6 ft) width put on the reflection point may
produce astounding results. In the case of diffusing critical resonances, the sound should be reflected in different
ways. A shelf with many books of different sizes can do the trick. However, you can also buy so-called diffusers,
specially designed for the diffusion of sound waves.

If you think an excellent low-frequency performance is important, we recommend you to leave enough space
between the speakers and the back wall. The removement of unnecessary high-frequency killers, e.g. by drawing
the curtains, can result in a more dynamic sound. We recommend that you use dampening material sparingly and
only in the case of real disturbances. Keep the curtains open!

Make sure, while setting up the speakers, that the distance between the speakers can be 1.2 times as much as the
distance between the speakers and the listener. All of this, results in a large sound stage, and every single
instrument is better separated from the others in terms of room space.

Changing fuses:

Under normal operation the fuses should not blow. Usually a blown fuse is caused by overload or faulty conditions.
Do not change the fuse by yourself; this should be done by an authorized technician. If the fuse blows immediately
after turning on the power, then the speaker should be returned to a dealer for repair.