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Fig. 2: Connector wiring

IMPORTANT!

B4-SUB,

Connections

The B4 cabinet is fitted with a pair of EP5 connectors. All five pins of

both connectors are wired in parallel. The B4-SUB uses the pin

assignments 3/4 and 5. Pin 5 is used for SenseDrive (only available

when using a D12 amplifier and 5-wire cabling). Pins 1/2 are

designated to E-Series and T-Series full range systems. Using the male

connector as the input, the female connector allows for direct

connection to additional loudspeakers.

The B4-SUB can be supplied with NL4 connectors as an option. The D12

SenseDrive function is not available when using NL4 connectors.

Pin equivalents of EP5 and NL4 connectors are listed in the table below.

EP5

NL4

Select the controller setup B4-SUB.

Within the D12 amplifier this is available in "Dual Channel" and "Mix

TOP/SUB" mode.

Selecting the B4-SUB setup enables up to two B4-SUB loudspeakers to

be driven by the respective D6 or D12 channel.

To apply SenseDrive for the subwoofer, EP5 connectors and 5-wire

cables have to be used. When operated in Mix TOP/SUB" mode, the

subwoofer has to be fed from the output B connector of the D12

amplifier.

100 Hz circuit

If the 100 Hz circuit is selected the upper operating frequency of the

system is reduced from 150 Hz to 100 Hz. It can be used when actively

driven B4-SUB subwoofers are used to supplement E-Series cabinets

operated in full range mode, for example in a distributed sound system.

The 100 Hz mode can also be used to compensate for the effect of

close coupling between the B4-SUB and E-Series cabinets operated in

CUT mode. With T-Series cabinets the standard mode is recommended.

(1.1 EN)

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