Harman/Kardon's state-of-the-mind technology is expertly exemplified in the hk590i receiver
The hk590i offers a full 45 watts per channel, with 35 amps of High instantaneous Current Capability (HCC) available under peak demand conditions. With the transient power nearly doubling into 4 Ω and continuing to increase dramatically into 2 Ω , the dynamic behavior approaches the ideal.
The Ultrawideband Frequency Response of the hk590i of 0,2 Hz to 150 kHz in the amplifier section works along with the phono section's dual RIAA circuitry to provide the most open, transparent sound.
The tuner section shuts down when the phono or aux buttons are pressed to eliminate the possibility of digital switching noise or bleed-through. Switchable bass and treble turnover frequencies allow for custom-tailoring of the tone-control characteristics to the listening environment. In addition, the hk590i has tone defeat and 2-way tape capability.
The digital synthesized quartz-locked tuning section of the hk590i can be tuned up or down manually or will scan automatically to the next station. For added convenience, stations may be locked into one of the 8 AM and 8 FM memory presets.
Specifications
Amplifier Section
Power Output
RMS, per channel, (both channels driven into 8 Ω , 20-20,000 Hz): 45 Watts less than 0,08% T.H.D.
IHF Signal (Dynamic Power) at 4 Ω , 1 kHz : 95 watts
IHF Signa (Dynamic Power) at 2 Ω , 1 kHz : 120 watts
Negative Feedback (Overall): 12 dB
High Instantaneous Current Capability (HCC): 35 Amps
Power Bandwidth (at half-rated Output, 8 Ω ): less than 10 Hz - 100 kHz
Frequency Response (at 1 Watt Output, +0 -3 dB): 0,2 Hz - 150 kHz
TIM: Immeasurable
Slew Rate: 120 V/µsec
Square Wave Rise Time: 1,8 µsec
Square Wave Tilt, at 20 Hz : less than 5%
Signal-to-Noise Ratio (IHF A Weighted, ref. 1 Watt output (New IHF)
Phono : 80 dB; 5 mV input
Aux : 80 dB; 0,5 V input
Input Sensitivity/Impedance
Phono : 2,2 mV/47 k Ω , 125 pF
Aux : 135 mV/22 k Ω
Overload at 1 kHz : 170 mV/Infinite
RIAA Equalization (20 Hz - 20 kHz): ±3 dB
Tone Controls
Bass : ±10 dB at 50 Hz
Treble : ±10 dB at 100 kHz
Subsonic Filter: 15 Hz, 12 dB/oct
Tuner Section
Usable FM Sensitivity (dBf/µV - 75 Ω)
Mono: 10,8 dBf / 0,95 µV
50 dB Quieting Sensitivity (dBf/µV - 75 Ω)
Stereo: 15,6 dBf / 1,65 µV
FM Signal-to-Noise Ratio
Stereo: 75 dB
Capture Ratio: 1,0 dB
Alternate Channel Selectivity: 70 dB
iF Rejection: 80 dB
AM Rejection (45 dBf): 52 dB
Stereo Separation (1 kHz, 65 dBf, 100% mod.): 50 dB
FM T.H.D. (1 kHz, 100% mod.)
Mono : 0,08%
Stereo : 0,12%
Am Sensitivity: 15 µV (ext. Ant.)
AM Alternate Channel Selectivity: 45 dB
AM Image Rejection: 33 dB
AM IF Rejection: 60 dB
Dimensions (W x H x D): 440 x 134 x 368 mm (17-3/8" x 5-1/8" x 14-1/2")
Weight: 8 kg (17 lbs 10 oz)
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