Hafler DH-200 User Manual

THE
POWER
AMPLIFIER
INSTRUCTIONS
for OPERATION
and KIT ASSEMBLY
CAUTION:
IF THE SPEAKER FUSES BLOW,
SOME DISTORTED SOUND CAN BE
HEARD. THEREFORE
IF AMPLIFIER
MALFUNCTIONS, ALWAYS CHECK
FOR BLOWN FUSES FIRST.
serial number in all communications
THE DAVID HAFLER COMPANY
5910 Crescent Boulevard, Pennsauken, New Jersey 08109

Hafler DH-200 Specifications

General

Signal to Noise Ratio	100 dB
Speaker load impedance	4 to 16 ohms
Power Output	100 watts per channel into 8 ohms
Total Harmonic Distortion	0.1%
Damping Factor	greater than 100
Input Sensitivity	1.5V
Input Impedance	47k ohms

Summary

Introduction

Installation

Operation

Pilot lamp function, thermal breaker, and indicator lights.

Loudspeaker Fuse Selection

Selection and use of appropriate fuses for speaker protection.

Loudspeaker Power Ratings

Considerations for matching amplifier power to speaker capabilities.

AC Connections

Connecting the amplifier to the power source.

Input

Connecting input signals using shielded cables.

Output

Connecting loudspeakers or headphones to the terminals.

Kit Assembly Instructions

Proper Soldering

Step-by-step guide to making good solder connections.

Wiring the Kit

Instructions for preparing and connecting wires.

Mechanical Assembly

Steps for physically assembling the unit's components.

If Problems Arise

Adjustments for Bias and DC Offset

Procedure for setting bias and DC offset.

Service Policy and Limited Warranty

Warranty for Kit-Built Units

Warranty terms for assembled and kit units.

Warranty for Factory Assembled Units

Warranty terms for factory assembled units.

AC Line Connections for Overseas Use

Kit Parts List

Schematic Diagram

Component Value Listing

Specifications

Pictorial Diagram