EM Acoustics EMS-215/215C quasi-bandpass subwoofer - Manual (Page 7)

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EMS-115 User Manual
www.emacoustics.co.uk
DSP Settings
The EMS-215 requires at the minimum an active low pass filter to function correctly. The settings below are given
as a starting point – as the user you are given maximum flexibility to adjust for your taste. To protect the drive
unit, it is also advisable to apply a high pass filter to the system to protect the EMS-215 drive unit from over-
excursion from frequencies it cannot reproduce. The higher you raise the high pass filter on an EMS-215, the more
headroom and overall sound pressure level output there is available. For most medium-to-high level applications,
we would recommend a minimum of an 40Hz high pass filter with a 24dB/octave slope to sufficiently protect the
loudspeaker. For higher SPL applications, we would recommend raising this filter – we would stress that the
higher the filter, the safer the loudspeaker will be. If you are in any doubt over suitable settings for your EMS-215,
please don’t hesitate to contact EM Acoustics or your local dealer for support and advice.
EMS-215:
High Pass Filter: 40Hz, 24dB/Octave Linkwitz-Riley
Low Pass Filter: 125Hz maximum, 24dB/Octave Linkwitz-Riley