d&b audiotechnik D12, Hardware Manual

Page: 13 / 28

- Regular short flashes (1:8 duty cycle):
⇒ ⇒ ⇒ ⇒
STANDBY:
in standby mode the loudspeaker outputs are electronically isolated
and the D12 idles, drawing minimal mains power. Only the most
essential functions are provided. Display and network remain
functional, the display illumination is switched off after 10 seconds.
Pressing the MUTE A or B switch powers on the D12 ready for use.
The D12 may also be powered back on by remote control from
standby mode.
Note:
When the D12 is set to STANDBY (or the mains power is turned off) the
movement of the loudspeaker cones in the cabinets connected is no
longer damped by the power amplifier output. This removal of the
damping makes them susceptible to excitation by other loudspeakers in
the surroundings. Audible resonances may occur, and even absorption
of low frequency sound energy as the undamped loudspeakers act like
a "bass trap". To permanently mute single subwoofer cabinets when
others are operated at the same time it is therefore preferable to use
the MUTE function instead of STANDBY. The STANDBY mode, however,
can be of advantage with mid/high systems, because it will remove any
residual noise from the system.
4.1.3. LEVEL/PUSH MENU (Digital rotary encoder) [3]
Operation, configuration and status viewing of the D12 are all accessed
via the front panel digital rotary encoder - LEVEL/PUSH MENU. In the
main menu the encoder acts as a level control. Pushing or turning the
encoder gives access to different menu levels or enables configurations
or values to be entered.
- Brief press: alternating between level control of channel A or B.
- Long press (approx. 1 sec.) : access to the menu level.
Note
:
A detailed description of the D12 menu structure and access is given in
the D12 Software manual, which is also provided with the D12.
D12 Amplifier, Hardware manual (4.7 EN) Page 13 of 28