Thank you for purchasing the LD-2 Line Driver, one of the two
line-level distribution systems offered by Meyer Sound for
integrating and optimizing our self-powered loudspeakers. The
LD-2 allows system designers and operators to configure and
control Meyer Sound self-powered full range, mid-hi, mid-bass,
downfill, and subwoofer loudspeakers and any combination of
these devices that may be required for real-world sound
reinforcement or playback applications. The LD-2 provides the
same basic functions as those provided by the LD-1A, but in a
more compact package for those sound system applications
requiring fewer auxiliary or supplemental loudspeakers.
The LD-2 provides two discrete distribution channels (Left and
Right) and each of these is equipped with a master gain
control, a master mute switch, and LED indicators to show the
presence of input signal, clipping and muting status. The gain
and mute controls on each input affect their associated
output channels. Additionally, each of the six output channels
is equipped with an individual gain control, mute switch and
application-specific switched filters. Each output may be
utilized as a full-frequency distributed output with gain and
muting control or may be configured as Mid-Hi, Mid-Bass, and
Sub (woofer) outputs, with appropriate filters. The Mid-Hi
output is equipped with a 160Hz Low Cut filter for
applications utilizing Meyer Sound Mid-Bass loudspeakers (DS-
2P or DS-4P). This output is also equipped with a switched
Array EQ filter to minimize the increased low-mid frequency
output resulting from combined adjacent loudspeakers such as
horizontal arrays of MSL-4 loudspeakers. The Mid-Bass and Sub
Crossover switch provides filters to the second and third
outputs to facilitate employment of Meyer Sound mid-bass
loudspeakers (DS-2P or DS-4P) and Meyer Sound subwoofers
(650-P or PSW-2), or both (See Figure 1).
In applications where mid-hi loudspeakers are used in
conjunction with subwoofers (with no supplemental mid-bass
loudspeakers), the Mid-Bass/AUX output channels may be
employed to feed auxiliary full range or downfill loudspeakers.
The Low Cut filter on this output will further optimize the
frequency response of mid-hi/full range cabinets connected to
the Mid-Bass/AUX output channel.
The LD-2 occupies one rack space and is constructed with a
16-gauge steel chassis and 1/8" aluminum rack ears. This
rugged design provides protection from physical wear and tear
and immunity from EMI.
MEYER SOUND LOUDSPEAKER TYPES
The following Meyer Sound self-powered loudspeakers are
referenced in this document. Please note that the MSL-4 is
normally employed as and considered to be a "full range"
loudspeaker. As used in the loudspeaker applications
described below (wherein there are supplemental “mid-bass”
and/or “subwoofer” loudspeakers) the MSL-4 is referred to
more accurately as a "mid-hi" loudspeaker.
• MSL-4 mid-hi loudspeaker
• CQ Series full range loudspeaker
• DS-2P/4P mid-bass loudspeaker
• DF-4 downfill loudspeaker
• 650-P subwoofer
• PSW-2 subwoofer
THE LD-2 LINE DRIVER:INTRODUCTION
4
Filter Switch
In
Filter Switch
Out
Mid-Bass or AUX
Output
Sub
Output
Figure 1 Mid-Bass or AUX and Sub Crossover
To Next Page
Loading...
Need help?
General