The Blackline F215 is a two-way passive, trapezoidal enclosure with dual
15" (380mm)/ 3" (75mm) coil low frequency drivers. Whilst both these
drivers have the same low frequency characteristics and operate together
up to 250Hz, they have been engineered to have different characteristics in
the mid-band. Above 250Hz, only the upper driver - a specially designed,
low distortion bass-mid device – is used up to the 1.3kHz crossover point.
This technique avoids the uneven response which would occur if both
drivers were allowed to operate together over the mid-band and maintains
clarity and articulation at extreme output levels.
High frequencies are reproduced by a 1.4" (35mm) exit titanium diaphragm
compression driver, loaded by a proprietary rotatable 80˚ x 50˚ constant
directivity horn.
The trapezoidal enclosure is of multi-laminate birch ply construction
incorporating a tough punched steel grille. Two large ports permit
uncompressed low frequency output at high input levels. Handles are fitted
top and bottom along with four 4" (100mm) rear mounted castors for ease
of transportation. Twelve M10 flying inserts are provided for cabinet rigging.
The F215 can be used with or without the M3 controller. Use of the M3 will
enhance the low frequency performance of the system and provide high
quality limiters to protect the F215 from being overdriven. The M3 can also
be used to provide crossover, EQ and limiter functions for the F215 with the
Blackline S218 sub-bass system for situations requiring extreme low
frequency output.
3.1 Grille
Removal
To remove the grille, first remove the grille retaining screws (two at the
bottom, one at the top). The grille can then be removed by inserting a flat
bladed screwdriver under the top and bottom of the grille and gently
levering the grille out of the side channels.
4
SAFETY FIRST
It is important that loudspeaker systems are used in a safe manner. Please
take some time to review the following points concerning safe use of
Blackline Series loudspeakers.
Professional loudspeakers are capable of producing extremely high sound
levels and should be used with care. Hearing loss is cumulative and can
result from levels above 90dB if people are exposed for a long period.
Never stand close to loudspeakers driven at a high level.
4.1
Stacking
Ensure that the floor or stage is level and solid
Do not stack speakers too high outdoors where winds could topple the
stack
Be aware that speakers producing very high power levels can move or
creep. To avoid this, place friction material between the floor and speaker
and between each speaker.
Martin Audio – Blackline F215
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NGLISH
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CONTENTS
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GUIDES
