EM Acoustics i-1 ultra-compact satellite loudspeaker - Manual (Page 7)

7
i-Series User Manual
www.emacoustics.co.uk
personnel following safe working practice. Should you be in any doubt whatsoever, please contact
your local dealer who will be able to refer you to a suitable rigging company.
Cabling and Amplifier Selection
The i-Series products are designed to be used with professional power amplifiers providing the following power
outputs:
i-1 80W/channel
into eight ohms
i-8 1000W/channel into four ohms
It is good practice to use an amplifier equal to the program power rating of the loudspeaker – so as to retain
sufficient headroom and good dynamic range. Care should be taken during operation to avoid amplifier clipping –
as this can cause serious damage to your loudspeakers. If in doubt, please contact your dealer who will be happy
to assist you in correct amplifier choice and setup.
Cabling
i-2 loudspeakers and i-8/i-12 subwoofers are supplied with Neutrik Speakon
TM NL4 connectors, wired pin 1+/1-. i-
1 satellite enclosures are supplied with 4mm binding posts (red positive, black negative). It is recommended that
the resistance of your cable is less than one tenth of the nominal system impedance. Given below are the
recommended maximum cable lengths for different cross-sections and impedances.
Conductor Cross Sectional Area
Maximum Recommended Cable Length
4 ohms 8 ohms 16 ohms
1.0mm 2 11m 22m 44m
1.5mm 2 17m 34m 68m
2.0mm 2 22m 44m 88m
2.5mm 2 29m 58m 116m
4.0mm 2 44m 88m 176m
6.0mm 2 66m 132m 264m
A small power amplifier working too hard is more likely to damage a loudspeaker than a large power amplifier
working within its operating range!