Meyer Sound DS-2 ユーザーズマニュアル

analog OR condition, automatically tracks
the power amplifier with the greatest out-
put voltage swing to control the system
protection limiters.

Also provided is a switch-defeatable

crossover (Mode switch) and line-level out-
put to drive subwoofer systems, with a sub
polarity switch to facilitate aligning the
subwoofers with the main system. The sub
switches and other setup controls are lo-
cated behind a cover plate on the D-2 front
panel, providing a means for securing the
system installer’s presets.

The DS-2 loudspeaker operates as a

system with the D-2 Control Electronics
Unit (one per channel). Optimized for the
DS-2 and pre-aligned at the factory, the D-2
contains active crossover networks, fre-
quency response and phase response align-
ment circuitry, and Meyer Sound’s exclu-
sive SpeakerSense™ driver protection
circuitry, incorporating peak and RMS
signal limiting as well as excursion protec-
tion. A single-channel device operating at
line level, the D-2 is intended to be the
final component in the signal chain before
the power amplifier.

The D-2 SpeakerSense circuitry protects

the DS-2 loudspeaker components from
damage due to overheating or excessive
excursion under high power conditions.
This unique circuit continuously monitors
the power applied to the DS-2 drivers, and
limits the signal output when the safe oper-
ating areas of the drivers are exceeded.
Until the onset of overload, the Speaker-
Sense circuitry has no effect on the signal.

The D-2 SpeakerSense circuit incorpo-

rates Meyer Sound’s new MultiSense™
function, which allows the use of multiple
power amplifiers having different channel
gains and/or power ratings. The D-2 accom-
modates up to four amplifiers, and provides
separate Sense inputs for each. Its
MultiSense circuit, which implements an

∞

PUSH