Meyer Sound LD-1A User Manual

LD-1A Line Driver
Power
15V
+
-
Mute
CH 1
Sub φ
DS-2
& Sub
Crossover
DS-2 φ
Mute
Mute
Mute
Array
EQ
Lo Cut
CH 2
DS-2
& Sub
Crossover
Mute
Mute Mute Mute
Signal Mute-Clip
CH 5
Mute Mute Mute
Signal Mute-Clip
CH 8
Mute
Signal Mute-Clip
CH 6
Signal Mute-Clip
CH 7
Signal Mute-Clip
CH 4
Signal Mute-Clip
CH 3
Out In
Sub DS-2 & Sub
Active Mute
0 180
Signal Mute-ClipSignal Mute-Clip
Master
φ Polarity
Mute
Crossover
Array EQ
-12
-6
-3
0
+3
+6
-9
DS-2
Mid-Hi
Sub
Out In
Lo Cut
Array
EQ
Lo Cut
Master
Mid-Hi
Array
EQ
Lo Cut
Master
Array
EQ
Lo Cut
Master
Array
EQ
Lo Cut
Master
Array
EQ
Lo Cut
Master
Array
EQ
Lo Cut
Master
Array
EQ
Lo Cut
Master
-12
-6
-3
0
+3
+6
-9
-12
-6
-3
0
+3
+6
-9
-12
-6
-3
0
+3
+6
-9
-12
-6
-3
0
+3
+6
-9
-12
-6
-3
0
+3
+6
-9
-12
-6
-3
0
+3
+6
-9
-12
-6
-3
0
+3
+6
-9
-12
-6
-3
0
+3
+6
-9
-12
-6
-3
0
+3
+6
-9
-12
-6
-3
0
+3
+6
-9
Sub φ
Mute
Sub
-12
-6
-3
0
+3
+6
-9
-12
-6
-3
0
+3
+6
-9
Mute
DS-2
φ
DS-2
-12
-6
-3
0
+3
+6
-9
LD-1A Front Panel
Input
Mid-Hi Out
DS-2 Out Sub Out Loop
Channel 3
Input Output
180-250V ~
90-125V ~
AC Voltage Ranges
CAUTION:
Set voltage before
applying power.
Channel 1
Channel 2
Channel 4
Channel 5
Input Output
Channel 6
Channel 7
Input Output
Channel 8
90-125/180-250 V ~
50-60 Hz 25W MAX
CAUTION: RISK OF FIRE REPLACE WITH
T250mA - 250V FUSE
PUSH
PUSH
PUSH
PUSH
PUSH
PUSH
PUSH
PUSH
LD-1A Rear Panel
Patents Pending
Operating Instructions
LD-1A
Copyright © 1997
Meyer Sound Laboratories, Inc.
All rights reserved
Part #: 05.037.002.01 Rev B2
Line Driver

Meyer Sound LD-1A Specifications

Audio Inputs

input impedance	10 k differential
common mode rejection ratio	> 80 dB
rf filter common mode frequency	425 kHz low-pass

Audio Outputs

output impedance	50 Ohm balanced
maximum voltage with 600 Ohm load	±22.5 Vpk
maximum current	±70 mApk

AC Power

operating voltage	90 - 125 VAC / 180 - 250 VAC
maximum power	25 Watts
fuse	5 x 20 mm, T 250 mA, 250 V, time-lag

Audio Performance

frequency response	< ±0.2 dB 20 Hz - 20 kHz
dynamic range	> 120 dB
noise floor	> -95 dBV A-weighted

Physical

height	3.45 inches
width	16.75 inches
weight	13.5 lb