d&b Yi-SUB - Manual (Page 6)

2.2. Connections
The cabinet is fitted with a pair of NL4 M connectors and a two
pole screw terminal block (ST). All four pins of both NL4 M
connectors are wired in parallel. The cabinet uses the pin
assignments 2+/2–. Pins 1+/1– are designated to full range
cabinets.
Cabinets with the weather resistant option (WR) are equipped with
a fixed input cable (PG type, H07-RN-F, 2 x 2.5 mm
2 (AWG 13),
standard length 5.5 m (18 ft).
Pin equivalents of the applicable connector options are listed in the
table below.
NL4
M
1+ 1– 2+ 2–
ST n.a. n.a. + –
PG n.a. n.a. Brown (+) Blue (–)
d&b SenseDrive
The SenseDrive feature within D12 amplifiers enables electrical
compensation for the properties of the loudspeaker cable used.
SenseDrive requires an additional sense wire. SenseDrive is
therefore only available with EP5 connectors and 5-wire cabling
for applicable loudspeakers.
Note: When the D12 is operated in "Mix TOP/SUB mode",
the SenseDrive function is available on the output B connector
only.
In permanent installations SenseDrive can also be applied to
cabinets with NL4 connectors or fixed cable option (PG). The
connection of the negative signal wire (EP5 pin 4 of the respective
D12 output) to the SenseDrive wire (EP5 pin 5 of respective D12
output) is made in a breakout box close to the loudspeaker
cabinet. For an uncompromising SenseDrive performance the
connection should be done not more than 3 m (10 ft) away from
the loudspeaker.
d&b LoadMatch
Starting with the D80 amplifier, the LoadMatch function enables
the amplifier to electrically compensate for the properties of the
loudspeaker cable used without the need for an additional sense
wire. For applicable loudspeakers, LoadMatch is therefore
independent of the connector type used.
Fixed cable connection
The Yi-SUB loudspeaker is supplied with a cover plate
[1] and a
rubber grommet feed through [2]. For indoor operation, these
items can be used to hide the connector panel, if required. For
unprotected outdoor operation, the connector panel must be
covered, i.e. both items must be used to achieve an IP degree of
protection of IP34.
Connector wiring
d&b Yi-SUB Manual 1.1 en 6