2.2 Connections
The cabinets are fitted with NLT4 F/M connectors. All four pins of
both connectors are wired in parallel. The cabinet uses the pin
assignments 1+/1–. Pins 2+/2– are designated to actively driven
subwoofers. Using one connector as the input, the second
connector allows for direct connection to a second cabinet.
The cabinets can be supplied with 2 x NL4 M connectors as an
option.
d&b LoadMatch
With the d&b four channel amplifier platform, 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.
2.3 Operation
NOTICE!
Only operate d&b loudspeakers with a correctly configured d&b
amplifier, otherwise there is a risk of damaging the loudspeaker
components.
Applicable d&b amplifiers:
D20/D80/30D.
Amplifier output mode(s): Dual Channel or Mix TOP/SUB
Application
Setup
Cabinets per
channel
AL60
AL60 PS
AL60 Out
AL60 In
2
2
2
AL60 AP
1
AL90
AL90 PS
AL90 Out
AL90 In
2
2
2
AL90 AP
1
Connector wiring
d&b AL60/AL90 Manual 1.2 en
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