Ecler AMBIT103 - Manual (Page 5)

5
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The versatility of these cabinets together with a large program of mechanical accessories
make it possible to install systems by grouping together from two to as many boxes as are necessary
to deal with virtually every need related to the reproduction of ambient music and announcement
broadcasting.
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Reliability and Quality. Above all, AMBIT103 cabinets have a surprisingly good quality in
terms of sound considering their dimensions. This is possible thanks to their special shape, which
enables a higher volume to be achieved than what could be imagined. A power capacity of 25W
RMS and 87dB SPL at 1W 1m is difficult to equal in enclosures with the same features and price.
4. CONNECTIONS
The AMBIT103 admits operation as high or low
impedance. A 5-position switch is located at the back
of the speaker and allows the selection of the
operating mode. The first 4 switch positions are to be
used in conjunction with a 100V line. Using a 100V
speaker distribution system has various advantages
regarding installation flexibility. First, different types of
loudspeakers (different power handling or impedance)
can be used simultaneously as required in different zones. On the other hand, the 100V line system
minimizes power loss due to cable resistance, as usually long cable runs are required in large
installations.
The AMBIT103 has 4 power handling levels for the 100V line. Depending on the intended use,
the speaker output can be attenuated more or less. In the zones where sound intensity should be
low, place the switch in the 2,5W or 5W position. If sound intensity should be high, place the switch
at 7,5 or 15W.
The fifth switch position corresponds to low impedance operation with a maximum power
capacity of 25W RMS. When operating at low impedance you should always consider the limitations
of the power amp when connecting several low-impedance speakers together. Impedances lower
than 4
Ω
should be avoided. At low impedance operation and with long cable runs, the cables
between the amplifier and the speakers should be as short as possible and have good quality.
ATTENTION
The AMBIT103 are shipped from factory with the switch in 100V/15W position. If it is
connected to a low-impedance amplifier, the speaker will not be damaged, but will perform
way below its full potential. If the speaker is accidentally connected to a 100V line in the
8
Ω/25W position, it will be severely damaged.
Always respect polarity. All connections are on spring-loaded terminals.