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Harman Kardon HK680 User Manual

Harman Kardon HK680
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7
Integrated
Amplifier
OWNER’
S
MANUAL

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Harman Kardon HK680 Specifications

Power IconPower
continuous average power per channel (FTC) 8 Ohms85 Watts
continuous average power per channel (FTC) 4 Ohms130 Watts
dynamic power (IHF, 1kHz tone burst) 8 Ohms110 Watts
dynamic power (IHF, 1kHz tone burst) 4 Ohms170 Watts
dynamic power (IHF, 1kHz tone burst) 2 Ohms240 Watts
high instantaneous current capability (HCC)+70 Amps
power supplyAC 230V, 50/60Hz
power consumption300W
Audio Performance IconAudio Performance
power bandwidth @ half-rated output, 8 Ohms<10Hz - 100kHz
frequency response @ 1W (+0/—3dB)0.25Hz - 100kHz
damping factor80
signal-to-noise ratio tuner/CD98dB
signal-to-noise ratio phono (MM)80dB
signal-to-noise ratio phono (MC)75dB
tone control range bass @ 50Hz+10dB
tone control range treble @ 10kHz+10dB
Inputs and Impedance IconInputs and Impedance
input sensitivity/impedance tuner/CD150mV/22kOhms
input sensitivity/impedance phono (MM)2.2mV/47kOhms, 125pf
input sensitivity/impedance phono (MC)120nV/56Ohms
phono-overload option phono (MM)100mV
phono-overload option phono (MC)5mV
Weight and Dimensions IconWeight and Dimensions
dimensions (width x height x depth)443 x 134 x 406mm
weight12.4kg

Summary

General Instructions and Safety

Always Use at 230V AC

Unit is designed for 230V AC operation only. Using higher voltage may create a fire hazard.

Do Not Open the Cabinet

Controls and Functions Overview

Volume and Tone Controls

Adjusts overall volume, bass, treble, and balance for audio output.

Connections Guide

Connecting Speakers

Guidance on selecting appropriate speaker cables and impedance matching.

Troubleshooting Common Issues

No Lights or No Sound

Checks for power issues and basic connection problems.

Technical Specifications

Power and Performance Ratings

Details on continuous and dynamic power output, HCC, and bandwidth.

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