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loudspeaker. When the relevant tappings have been selected add the individual
wattages required at all speakers and select an amplifier with a rating equal to or
exceeding the total wattage required. All of the transformer primaries should be
connected in parallel to the output of this amplifier. If for example, you select the 30-
watt transformer tap, it means that at full rated amplifier output the speaker will
receive the full 30 watts. If the amplifier gain is reduced each speaker will receive a
proportional amount of power, maintaining the overall system balance.
When calculating amplifier wattage requirements for a system, it is recommended
that a generous wattage safety margin (3dB of headroom) be left so that the system
does not have to operate continuously at its full rated output
7. Equalisation
The i6AW ICT loudspeaker is designed to need no equalisation or correction to
overcome system limitations. As a result, it will only need equalisation to compensate
for difficult acoustic environments.
Excess equalisation can reduce system headroom, and introduce phase distortion
resulting in greater problems than it cures. If equalisation is required then it should be
applied gently and smoothly. Violent equalisation will be detrimental to the overall
sound quality. If the loudspeakers were being used consistently at high levels it would
be beneficial to introduce a high-pass filter at 50Hz to protect the loudspeaker from
any unnecessary subsonic frequencies.
8. Dimensions