Dynaudio AUDSUB User Manual

Audience SUB-20A

Owner's Manual

and Safety Instructions

Audience SUB-30A

Installation

Important Safety Instructions

Read these instructions before any connection to the apparatus.

Please keep these instructions in a convenient place.

CAUTION

To avoid electric shock, do not open the subwoofer.

There are no user-serviceable parts inside.

Do not operate this apparatus near water.
Do not install near any heat sources such as radiators, heat registers, fireplaces, stoves, or

other items (including large amplifiers) that produce heat.
Do not cover the apparatus. Keep it ventilated.

Power connection

Do not defeat the safety purpose of the grounding-type plug. A grounding-type plug has
two blades and a third grounding prong. The third prong is provided for safety. If the
provided plug does not fit into the wall outlet, consult an electrician for replacement of the
obsolete outlet.

Protect the power cord from being stepped on or pinched, particularly at plugs,
convenience receptacles, and the point where they exit from the apparatus.

Unplug this apparatus during lightning storms or when unused for long periods of time.

Attachments

Only use attachments/accessories specified by the manufacturer.

Servicing

Refer all servicing to qualified service personnel. Servicing is required when the apparatus
has been damaged in a way such as power supply cord or plug is damaged, liquid has been
spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or
moisture, has been dropped, or does not operate normally.

Maintenance

To prevent fire or shock hazard, clean only with a damp cloth. Never use cleansers or
chemicals.

Important Safety Instructions

Please note that excessive listening at high sound pressure levels may cause permanent
hearing damage.

Warning

This equipment can

produce sound pressure

levels in excess of 90 dB(A)

Unpacking

Contents

ABOUT THIS PRODUCT 6

OPERATION AND LOCATION OF CONTROLS 7

Level 8
Crossover frequency 8
Phase / Phase switch 8
Input terminal Right and Left / Input terminal Mono 9
Output switch / Output terminal Right and Left 9
Utility Link terminal Input/Output 10
Standby 10
Subsonic filter 10
Protection circuit 11
Power switch 11
AC inlet 11
Voltage switch 11
Fuse-drawer 11

INSTALLATION 12

Multi-channel sound system 13

POSITIONING 14

TROUBLESHOOTING 15

No sound 15
Distorted sound 15

SPECIFICATIONS 16

The Dynaudio subwoofer provides quality low frequency output to extend the frequency
range of the speaker system, and offers enhanced low bass when used as a dedicated
subwoofer in an A/V or surround system.

The SUB-20A is fitted with a 24 cm (9.5 inch) woofer, and the SUB-30A is fitted with a 30
cm (12 inch) woofer. To achieve maximum sound output, both models’ woofer is mounted in a
port tuned enclosure.

With Dynaudio's Utility Link, it is possible to combine two subwoofers in a multi-channel
audio system. With three inputs on each subwoofer, up to six channels may be summed into
one (mono) subwoofer channel.

The dimensions of the Audience SUB-30A will make it possible to use it as a CTV-stand. An
optional Audience Center speaker fits perfectly on top of the Audience SUB-30A, thereby
minimizing the space normally taken by a subwoofer in a living room.

Both subwoofers are selfpowered designs (actively amplified). The amplifiers power supply
can be used with various voltages, 115/230 V ~, and frequencies, 60/50 Hz. A voltage selector
switch on the back panel of the subwoofer may be positioned according to the required voltage
in your area. The setting is pre-set by the manufacturer prior to shipping. Do not try to alter
the voltage setting, as doing so will result in a blown fuse. Wrong settings may result in
damaged electronics.