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Carts and stands
Use only with a cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the
apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid
injury from tip-over.
Non-use Periods:
Object and Liquid Entry
Damage Requiring Service
Servicing:
IMPORTANT NOTES
This manual is to be considered an integral part of the product, and must always accompany the
speaker when it changes ownership as a reference for correct installation and operation as well as for
the safety regulations.
dB Technologies will not assume any responsibility for incorrect installation of the speaker.
OPERATING PRECAUTIONS
-
Do not force the amplifier incorporated in the speaker to work in overload for extended periods
of time.
-
Never force the control elements (switches, controls, etc.).
CAUTION
-
Make sure that the speaker is positioned in a stable and secure way in order to avoid any
dangerous conditions for persons or objects.
CONNECTION
-
For connecting the speaker, use only qualified and experienced personnel having sufficient
technical knowledge or specific instructions for making the connections correctly and thus
preventing electrical dangers.
-
To prevent the risk of electrical shock, the speaker must only be supplied from the mains after all
connections have been completed.
-
Before powering up the speaker, it is advisable to re-check all the connections, making sure in
particular that there are no short circuits.
-
The entire sound system must be designed and installed in compliance with the current
standards and regulations regarding electrical systems.
CAUTION
-
To prevent inductive phenomena from giving rise to hum or disturbance which would jeopardize
efficient speaker operation, the cables that transmit microphone signals or line level signals
(e.g. 0 dB/V) must be screened and should not be run in the vicinity of:
1)
Equipment that produces strong magnetic fields (e.g. large power supply transformers)
2)
Electrical energy conductors
3)
Lines that supply speakers.
PROTECTION SYSTEM
The speaker is equipped of a exclusive system, which protects the loudspeakers against overheating,
ensuring the maximum reliability in all professional applications. In addition, a sophisticated system
incorporated in the amplifier handles the limiter circuits and the protection against overheating and
short circuits.
Unplug this apparatus during lightning storms or when unused for long periods of time.
Care should be taken so that objects do not fall and liquids are not spilled into the enclosure through
openings.
Refer all servicing to qualified service personnel. Servicing is required when:
-
the apparatus has been damaged in any way;
-
the power-supply cord or the plug has been damaged;
-
the liquid had been spilled or objects have fallen into the apparatus;
-
the apparatus has been exposed to rain or moisture
-
the apparatus does not operate normally or exhibits a marked change in performance;
-
the apparatus had been dropped.
The user should not attempt to service the apparatus beyond that is described in the Operating
Instructions. All other servicing should be referred to qualified service personnel.
CAUTION
TABLE OF CONTENTS
1.
CONTROLS AND FUNCTIONS ........................................................14
2.
POWER SUPPLY ..............................................................................16
2.1
Battery power supply .........................................................16
2.1.1
First charge........................................................................16
2.1.2
Subsequent charging.........................................................16
2.2
Battery protection ..............................................................16
2.3
Mains power supply...........................................................16
3.
RADIO MICROPHONE......................................................................17
3.1 UHF
receiver .....................................................................17
3.1.1
Operating bands and frequencies .....................................17
3.2
VHF receiver......................................................................17
3.2.1
Operating frequencies .......................................................18
4.
USE....................................................................................................18
4.1
Inputs .................................................................................18
4.1.1
CD-AUX input ....................................................................18
4.1.2
MIC/LINE inputs ................................................................18
4.1.3
Radio microphone .............................................................18
4.2
Volume and tone control....................................................19
4.3
Outpus ...............................................................................19
5.
“TD” TIME DELAY OPTION..............................................................21
6.
DIFFUSOR DIMENSIONS .................................................................21
7. TECHNICAL
SPECIFICATION ..........................................................22
1. CONTROLS AND FUNCTIONS (refer pag.45-46)
1)
“OVERLOAD” INDICATOR
The indicator lights up red to indicate that the internal limiting circuit has tripped to
prevent amplifier distortion and protect the speakers against overloads.
2)
“MASTER VOLUME” CONTROL
This control regulates speaker output volume.
3)
“CD-AUX VOLUME” CONTROL
This control regulates the volume of the input signal to the RCA “STEREO CD-AUX
INPUTS” connector.
4)
“MIC/LINE VOLUME” CONTROL(with UHF and VHF receivers only)
This control regulates the volume of the input signal to the XLR/Jack 1/4” (6.3mm)
“MIC/LINE BAL INPUT” connector
5)
“WIRELESS VOLUME” CONTROL
This control regulates the input volume of the radio microphones.
6)
“VOICE TONE” CONTROL
This control permits regulating the tones in the microphone and radio microphone
channel.
7)
“WIRELESS RX” RADIO MICROPHONE SUPPLY SWITCH
(with UHF and VHF receivers only)
This switch permits switching off the radio microphone receiver, thereby increasing
battery life in the case of this not being used.
8)
SENSITIVITY SWITCH
Place the switch in MIC position to use a balanced or unbalanced microphone.
Place the switch in LINE position to use a balanced or unbalanced source at line
level.
9)
"MIC/LINE BAL” INPUT CONNECTOR
Balanced input that can be used for connecting up a low-impedance dynamic
microphone, or a high-level audio source (eg. pre-amplifier, mixer, recorder, CD
player, musical instrument, etc.,).
