Martin Audio W8L Longbow Application Manual page 88

The medium throw section of larger W8L Series columns can be set for a wider HF
bandwidth as they require less air absorption equalization. Typically peaking
frequencies are 8kHz for very long throw W8L sections and12kHz for the medium
throw sections.
In more favourable conditions these peaking frequencies can be increased to 10kHz for
the long throw section and 14kHz for the medium throw section. Parametric filters with
a Q of 2 are favoured for very high frequency peaking as their more selective boost
improves system headroom.
Short throw sections of a W8L don't normally need high frequency compensation.
Our standard W8L and W8LC controller presets cater for a range of line lengths,
curvatures and humidity conditions.
Mid frequency compensation
The mid frequency elements of larger W8L Series columns are split into two drives
which cover the upper, straighter far- field sections, and the lower, more splayed near-
field sections.
All material © 2007. Martin Audio Ltd. Subject to change without notice.