Meyer Sound LD-1A Operating Instructions Manual Download Page 1

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-Clip

Signal      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

Summary of Contents for LD-1A

Page 1: ...ter 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 Mute Sub 12 6 3 0 3...

Page 2: ...c shock Symbols Used According to ISO IEC Guide and EN 45014 The product herewith complies with the requirements of the Low Voltage Directive 73 23 EEC and the EMC Directive 89 336 EEC declares that t...

Page 3: ...d Chassis GND Earth and Chassis GND Audio GND 160Hz Q 0 8 12 dB oct Mid Hi Level 12 to 6 dB Full range Low cut Flat ArrayEQ 6 dB at 220Hz 0 6 octave bandwidth Channels 1 2 only DIFFERENTIAL DRIVER PWR...

Page 4: ...PSW 2 Self powered subwoofer Audio Input The LD 1A presents a 10 kOhm balanced input imped ance to a three pin XLR connector wired with the follow ingconvention Case Earth AC ground and chassis Pin 1...

Page 5: ...t the power cord before changing the fuse To replace the fuse insert a flat blade screwdriver in the fuse cap and gently turn counterclockwise the fusespringsfromitssocket Replaceonlywitha5x20mm T 250...

Page 6: ...ystem the switch should be out NOTE Full range signals may be applied to Meyer self powered subwoofers because they have built in active crossovers that filter mid hi frequencies external cross overs...

Page 7: ...L 4 and PSW 2 form a compatible full range system However duetoanoverlapinLF lowfrequency response between the two speakers there is a rise in the system frequency response in the range 65 120 Hz It i...

Page 8: ...to the CH 3 input Using a Y connection at the CH 1 input as shown for the CQ down fills accomplishes the same signal routing The Lo Cut and Array EQ switches for CH 1 and 3 should be in The Lo Cut fil...

Page 9: ...erden Para reducir el riesgo de descarga el ctrica desconecte de la red el altoparlante antes de instalar el cable de se alizaci ndeinterfazdelasegnale Vuelvaaconectarel conductor flexible de alimenta...

Page 10: ...d to chassis via 500 pF capacitance Connectors Main 4 female XLR channel Mid Hi DS 2 Sub Loop Auxiliary 1 female XLR channel Wiring Pin 1 chassis earth ground Pin 2 signal Pin 3 signal Drive Capabilit...

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