EM Acoustics i-12 compact ULF subwoofer - Manual (Page 8)

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i-Series Subwoofers User Manual
www.emacoustics.co.uk
Processing
i-Series subwoofers have no internal circuitry, and as such active crossover units are required to prevent damage
to your subwoofers. Low pass filters are required to prevent your low frequency reproduction sounding too “busy”
(and excessive high frequency will damage your subwoofers) and high pass filters are recommended to protect the
drive units from over-excursion.
i-8 subwoofer:
It is recommended that a high pass filter at 35Hz is used for moderate-to-high SPL applications to prevent the
drive units from over-excursion. Low pass filters can be set to personal taste – although it is recommended that
the filter is set below 150Hz. A minimum of 24dB/Octave slopes should be used – and faster slopes for the high
pass filter if possible.
i-12 subwoofer:
It is recommended that a high pass filter at 26Hz is used for moderate-to-high SPL applications to prevent the
drive units from over-excursion. Low pass filters can be set to personal taste – although it is recommended that
the filter is set below 100Hz. A minimum of 24dB/Octave slopes should be used – and faster slopes for the high
pass filter if possible.
If you are in any doubt whatsoever over correct processor settings, please do not hesitate to contact your EM
Acoustics representative or contact us at the factory directly.