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A fully featured, 150-watt-per-channel stereo amplifier with multiple analog and digital inputs.

Powerful, fully integrated two-channel amplifier

To complement the HK 990’s 150 watts per channel of motive power, this feature-packed stereo amplifier features fourth-generation Real-Time Linear Smoothing (RLS IV), EzSet/EQÔ II technology for playback optimization, dual subwoofer outputs and an ultrawide bandwidth design crafted to deliver truly precise sound imaging. But that is just the beginning; this powerful amplifier offers a choice of six stereo analog audio and four digital inputs, thereby ensuring compatibility with the signals of your choice.

Know What's
In The Box

Before You Unbox It
  • 1 Harman Kardon HK 990 two-channel amplifier
  • 1 remote control
  • 4 AAA batteries
  • 1 EzSet/EQ II microphone with 22-foot (6.7-meter) cable
  • 1 AC power cord
  • Owner’s manual
Product Specs, Manuals & Compatibility
Compatible with TVs, Laptops, and Mobile devices
Manuals & Downloads
General Specifications
Power Consumption (full power/idle)
Power Supply
AC 120V, 60Hz
Standby power consumption:
Power Bandwidth @ Half-Rated output, 8Ω
20Hz – 100kHz
Audio Specifications
Signal-to-noise Ratio (IHF-A)
100dB (Tuner/CD) 75dB (Phono – MC)
2.8V (Tuner/CD) 85mV (Phono – MM) 8.5mV (Phono – MC)
Tone control range, bass @ 100Hz/treble @ 10kHz:
Dynamic Power (IHF, 1 kHz Tone Burst)
220 watts (8 ohms) 440 watts (4 ohms)
Frequency response @ 1W (+0/–3dB):
5Hz – 120kHz
Input Sensitivity/Impedance
350mV/43k ohms (Tuner/CD) 10mV/47k ohms (Phono – MM) 1mV/100k ohms (Phono – MC)
High Instantaneous Current Capability
±200 amps
Depth (in)
17-1/2" inches
Depth (mm)
Height (in)
6-3/8" inches
Height (mm)
Weight (kg)
Width (in)
17-5/16" inches
Width (mm)
USA Warranty Length
1 Year Electronic
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Item #: HK 990

HK 990

A classic two-channel amplifier.
$1,999.95 each
Availability: In-stock and ready to ship.
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