d&b audiotechnik D12 Hardware Manual

5.2. Pin assignments/Pin equivalents
The passive full range/TOP systems and passive subwoofers use pins 1
and 2 of the EP5 connector (1+ and 1– of the NL4 connector).
Active driven subwoofers use pins 3/4 and pin 5 of the EP5 connectors
(2+ and 2– of the NL4 connector).
EP5 NL4
TOP+
11+
TOP–
21–
SUB+
32+
SUB–
42–
SenseDrive SUB
5n.a.
Tab. 6: TOP/SUB pin assignments EP5/NL4 connectors
These pin assignments allow full range cabinets and subwoofers to be
linked together and connected to the amplifier in mixed configuration
(Mix-TOP/SUB) using a single 4 or 5-wire cable. SenseDrive is only
available when using 5-wire cables.
D12 Amplifier, Hardware manual (2.0E) Page 21 of 32

d&b audiotechnik D12 Specifications

General

Channels	2
Total Harmonic Distortion (THD)	< 0.05%
Input Sensitivity	+6 dBu
Amplifier Technology	Class D
Damping Factor	> 200
Input Connectors	XLR
Frequency Response	20 Hz - 20 kHz
Input Impedance	10 kOhms
Mains Voltage	100-240V, 50/60Hz
Cooling	Temperature controlled fan
Output Connectors	NL4