6 CONNECTIONS
The F215 connector panel has two Neutrik Speakon connectors wired in
parallel with each other. The second connector allows use of a short link
lead to power another parallel loudspeaker. The connectors are wired as
follows:
(Fig 4)
7 CABLE
LENGTHS
When connecting Blackline systems to an amplifier, it is recommended that
the return resistance of the cable used is less than one tenth of the nominal
impedance of the system or systems in parallel. The table below gives an
indication of the maximum permissible cable runs for various conductor
cross-sectional areas.
Conductor CSA
Maximum Cable Run
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
8 SYSTEM
CONFIGURATIONS
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 control the F215 with the Blackline S218 subwoofer for more
ambitious nightclub installations and live sound reinforcement requiring
extreme low frequency output. The number of full-range systems required
to match the efficiency of one sub-bass system is shown as a
recommended cabinet ratio (RCR). Please note that for simplicity only the
left channel is shown and that each line in the diagram represents a pair of
wires.
Martin Audio – Blackline F215
E
NGLISH
5
Figure 4.
2 core
NL4 MPR Connector
2-
2+
1-
1+
+ve
-ve
+1
+1
-1
-1
CONTENTS
<
>
GUIDES
