Harman Kardon HK 990 Product Information - Page 2

2 x 150W 2.2-channel stereo integrated amplifier

Power

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150W x 2 into 8 ohms, 20Hz – 20kHz, at <0.07% THD, with all channels

driven simultaneously

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High-current (±200 amps), ultrawide-bandwidth (10Hz – 100kHz)

amplifier design

Connectivity

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Six analog stereo audio inputs

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Two analog recording outputs

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Four digital inputs (two optical and two coaxial)

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Dual subwoofer outputs to connect up to two active subwoofers

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One coaxial digital output for recording

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Two real balanced inputs, using XLR connectors

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One HRS (high-resolution synchronization) link

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2.2-channel processor input allows the use of external audio processors

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Two high-quality phono inputs for connection of record players with an

MM or MC cartridge

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2.2-channel preamp outputs allow the use of external power amplifiers

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Remote control input and output

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Heavy-duty binding posts allow for the use of speaker cables up to 10mm

2

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Headphone output

Advanced Performance Technologies

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High-current capability provides the instantaneous current necessary to

precisely drive and control nearly any loudspeaker system

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Ultrawide-bandwidth amplifier design for improved transient accuracy and

phase linearity

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Low negative feedback for further improved dynamic accuracy

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Use of discrete electronic circuitry to provide the highest performance

level

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Dual-path technology allows for pure analog or pure digital audio

processing within the same product

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EzSet/EQ room optimization for quick and accurate system setup,

optimized for two channels and two subwoofers

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Symmetric (balanced) XLR analog inputs offer lower noise levels and

higher signal-to-noise performance

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RLS IV digital-to-analog conversion technology, with dual conversion using

two stereo AD1955 high-grade DACs

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The HRS link allows Harman Kardon CD players to lock themselves to the

external clock of the amplifier for a jitter-free connection, similar to having

the CD playback inside the amplifier

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Dual differential input stages with their own high-voltage supply, resulting

in high gain and low noise

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Cascoded predriver stage considerably reduces high-frequency distortion,

allowing crystal-clear high frequencies, free from any harsh sound

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Thermal tracking mechanism using ThermalTrak

™

output stage transistors

that include internal temperature sensors to bias the current of the output

stage in real time

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Sophisticated electronic protection circuitry guards the amplifier from

short-circuiting or from damaged speakers and wires, without impairing

sound quality, by using current-limiting or output relays

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DC servo ensures that the DC level of the amplifier output will stay within

a specified limit at any condition

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Multiple protection circuits will switch the amplifier off in case overcurrent,

overvoltage, overtemperature or DC protection is detected

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Dual toroidal transformers and up to 16.000μF of supply filtering per

channel will allow high channel separation and tight bass control, even

with a low-impedance load

Ease of Use

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Dual-line dot-matrix display

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Remote A/B speaker switching

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IR remote extension jacks for control of the amplifier when placed in a

cabinet

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Harman Kardon system remote for control of compatible Harman Kardon

CD players and tuners

HK 990

© 2010 Harman International Industries, Incorporated. All rights reserved. Harman Kardon is a trademark of Harman International Industries, Incorporated, registered in the United States

and/or other countries. EzSet/EQ is a trademark of Harman International Industries, Incorporated. ThermalTrak is a trademark of Semiconductor Components Industries, LLC.

Features, specifications and appearance are subject to change without notice.

EAN Code HK 990/230: 0282925063388

Harman Consumer, Inc.

8500 Balboa Boulevard, Northridge, CA 91329 USA

www.harmankardon.com

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