d&b audiotechnik D40 - Speaker Outputs Configuration

Startup
5.2.3 SPEAKER OUTPUTS
WARNING!
Potential risk of electric shock.
The amplifier output pins can carry dangerous voltages.
▪ Only use isolated loudspeaker cables with correctly fitted
connectors.
▪ Never connect an amplifier output pin to any other input or
output connector pin or protective earth (ground).
The amplifier is supplied with four NL4 output connectors
(A/B/C/D) one for each amplifier output channel Þ Dual
Channel configuration.
In addition, two NL4 connectors are provided, one for each pair of
amplifier output channels to allow either Mix TOP/SUB (A/B MIX,
C/D MIX) or 2-Way Active (2-WAY/2-Way) configurations.
All NL4 connector pins are hardwired and permanently driven
using the following pin assignments:
SPEAKER OUTPUTS pin assignments
AMP
SPEAKER OUTPUTS
A B A/B C D C/D
A
1+/1–
2+/2–
1+/1–
B
1+/1–
2+/2–
2+/2–
C
1+/1–
2+/2–
1+/1–
D
1+/1–
2+/2–
2+/2–
Output modes and connector assignments - exemplary
Dual Channel - Dual Channel
A/B - C/D
Mix TOP/SUB - Mix TOP/SUB
A/B MIX - C/D MIX
or...
2-Way Active - 2-Way Active
2-WAY - 2-WAY
Dual Channel - Mix TOP/SUB
A/B - C/D MIX
or...
Dual Channel - 2-Way Active
A/B - 2-WAY
d&b D40 Reference manual 1.5 en 17