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6
CONNECTIONS
The LE350A and LE12J are fitted with two Neutrik Speakon NL4 connectors
wired in parallel.
LE350A Passive
LE12J Active
NL4
Input -
LF -
-1
Input +
LF +
+1
N/C
HF -
-2
N/C
HF +
+2
The LE400C is fitted with two Neutrik Speakon NL4 connectors wired in
parallel plus an XLR connector.
LE400C Passive
LE400C Active
NL4
XLR
Input -
LF -
-1
1
Input +
LF +
+1
2
N/C
HF -
-2
N/C
HF +
+2
The LE700A is fitted with two Neutrik Speakon NL4 connectors wired in
parallel plus an EP8 connector.
LE700A Active
NL4
EP8
LF -
-1
1 & 3
LF +
+1
2 & 4
HF -
-2
5 & 7
HF +
+2
6 & 8
7
CABLE LENGTHS
When connecting loudspeaker 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
Martin Audio – LE SERIES
E
NGLISH
5
CONTENTS
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GUIDES