LD SP Series - User Manual

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SP Series

Professioneller Leistungsverstärker

SP-600

BEDIENUNGSAN

LEITUNG

Wir freuen uns, dass Sie sich für ein Audioprodukt von LD Systems

entschieden haben. Bitte lesen Siediese Bedienungsanleitung vor

Inbetriebnahme des Verstärkers sorgfältig, und bewahren Sie sie

für spätere Referenzzwecke auf.

Inhalt

 Sicherheitshinweise …...…… ………… ...1  Anschlüsse (Signalausgang) ..……… …..4

 Grundfunktionen ....……….…… ……… …..1  Bedienung. …………………………….… ..6

 Vorsichtsmaßnahmen………………… …….2  Wartung & Pflege……… …… ……………7

 Gerätefront ………..….…..……………….….2  Erste Hilfe bei Problemen…… ….………..7

 Geräterückseite..…….…… ………………….3  Technische Daten……………………....... .8

 Anschlüsse (Signaleingang) ..…… … …......3

Questions and Answers

J
Jason HolmesJul 29, 2025
Why LD Amplifier has no sound?
- P
  Paul RobinsonJul 29, 2025
  Several factors might cause a lack of sound from your LD Amplifier. First, ensure that the signal source equipment is connected to the amplifier and powered on. Check the speaker connections for looseness or damage. Confirm that the connection between the amplifier and speaker is correct. Finally, thermal protection may be activated if the amplifier is overloaded or poorly ventilated; ensure proper ventilation and check the fans.
A
Angela GarciaAug 9, 2025
What to do if my LD Amplifier doesn't turn on?
- J
  Jimmy GilbertAug 9, 2025
  If your LD Amplifier isn't responding when you turn it on, first, ensure the power is turned on. Check the power cord to make sure it's firmly connected to the mains supply. If the issue persists, turn off the power and inspect the fuse on the rear panel; if the fuse is blown, replace it with one of the same type.
C
Caleb SmithAug 19, 2025
How to increase output volume on LD Amplifier?
- W
  wsmithAug 19, 2025
  If the output volume of your LD Amplifier is inadequate, first, check the signal input level (volume) and adjust it to an appropriate intensity. If the signal source equipment (like a CD player) has a low output, increase its output or adjust the input sensitivity of the amplifier.

Summary

Safety Instructions

Precaution

Front Panel Overview

PROT (Protect); YELLOW LED

Alerts to protection status, including startup, overheating, or DC fault.

Input Level Controls (Volume)

Potentiometers to adjust the input signal volume for amplifier channels.

Power Switch

LIMIT LED

Rear Panel Connections

Input Connectors

Details the Combo XLR/Jack input connectors and their pin assignments.

Mode Switch

Allows selection between Stereo, Bridge, or Parallel operation modes.

Connections (Signal Input)

Unbalanced Wiring

Balanced Wiring

Connection (Signal Output)

Stereo Mode Output

Bridge Mode Output

Parallel Mode Output

General Operation

Operation Procedures

Step-by-step guide for operating the amplifier, including connections and settings.

Mode Operation Procedures

Detailed setup for Bridge, Parallel, and Stereo modes.

Troubleshooting

LD SP Series Specifications

General

Inputs	XLR
Protection Circuits	Overload, Short Circuit
Frequency Response	20 Hz - 20 kHz
Input Sensitivity	1V
Input Impedance	10 kOhms (Unbalanced)
Output Impedance	4 Ohms

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