Hafler DH-500 manual Net Weight 45 lbs Shipping Weight 49 lbs

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Power Rating: Less than 0.025% total harmonic distortion at any power level up to 255 watts continuous average power per channel into 8 ohms at any frequency between 20 Hz and 20 kHz with both channels driven.

IM Distortion (SMPTE): Less than 0.007% from 1 watt to 255 watts into 8 ohms

Typical THD at 255 watts into 8 ohms: 1 kHz-0.002%; 10 kHz-0.007%

Frequency Response into 8 ohms: -3dB, 0.5 Hz to 120 kHz at 1 watt kO.5 dB, 5 Hz to 40 kHz at 255 watts

Typical Channel Separation at 1 kHz: 60 dB

Signal to Noise Ratio: Exceeds 100 dB referred to 255 watts into 8 ohms, unweighted Exceeds 90 dB referred to 1 watt into 8 ohms, A weighting

Input Impedance: 47,000 ohms

Input Sensitivity: 2.35 volts for 255 watts into 8 ohms; 0.145 volts for 1 watt

Damping Factor: 200 to 1 kHz into 8 ohms; 60 to 10 kHz into 8 ohms

Rise Time: 10 kHz, 80 volts p/p square wave, 10% to 90%: 2.5 us.

Slew Rate: 1 kHz, 120 volts p/p square wave: 45 V/us.

Semiconductor Complement: 27 transistors, 12 power Mosfets, 33 diodes, 8 zener diodes, one integrated circuit, one diode bridge.

Power Consumption: 240 VA quiescent; 1200 VA @ rated power into 8 ohms, 2 channels Size: 7-l/4” high, 19” wide, 13” deep including handles

Net Weight: 45 lbs.

Shipping Weight: 49 lbs.

CAUTION: For continued protection, replace the power fuse only with the same type and rating as indicated.

WARNING: TO PREVENT FIRE OR SHOCK HAZARD, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE.

0 Copyright 1987. All rights reserved.

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Contents Power Ampli Fier Net Weight 45 lbs Shipping Weight 49 lbs Contents IntroductionLoudspeaker Fuse Selection InstallationOperation Input Loudspeaker Power RatingsConnections OutputProper Soldering AssemblyInstructions Wiring the Kit ALL Solder Used Must be Rosin CoreMechanical Assembly Page Page Chassis Wiring Page Page If Problems Arise Functional Block Diagram Circuit DescriptionPage Qf3 Ii.3fW AC Line Connections for Overseas USEKIT Parts List DH-502 Installation Instructions Hafler DH-502 Amplifier Bridging KIT For the DH-500 Page Warranty for KIT-BUILT Units