Infact Harman had very good stereo amps after that too :
https://www.stereophile.com/content/harman-kardon-hk-990-integrated-amplifier
Now their focus has shifted to soundbars (Samsung/jbl)and Bluetooth speakers(mainly jbl).
For all its bells and whistles, the HK 990 is a stereo amplifier and must be judged as such. With either the Sony XA-5400ES or Oppo BDP-95 connected to its balanced XLR analog input and the input mode set to Direct Path, the sound coming out of the Aerials was uncompromised. The bass in
Pipes Rhode Island (CD, Riago 101), a compilation of pipe-organ recordings engineered by our own John Marks, was clean and taut and loaded the room well. Inner voices were exquisitely delineated. With the divine Lorraine Hunt Lieberson singing
Neruda Songs, composed for her by her husband, Peter Lieberson (CD, Nonesuch 79954-2), there was an eerie sense of a lively, balanced presence to her voice and a good presentation of the Boston Symphony (led by James Levine) in their home venue, Boston's Symphony Hall. The power—for example, with Messiaen's brilliant and massive
Turangalîla-Symphonie, in the recording by Hans Vonk and the St. Louis Symphony (SACD/CD, Arch Media Archives/Pentatone PTC 5186 320)—was almost staggering. The same was true with Dead Can Dance's
Into the Labyrinth (CD, 4AD 45384-2): the HK 990's impressive bass imposed no limitations, either on more delicate instrumentals or on Lisa Gerrard's soaring melisma. The sound from the same source components via the H/K's unbalanced analog RCA inputs was marginally less secure but not disappointing. I listened to a wide range of other recordings, and the HK 990 offered eminently satisfying performance through the Aerial and the B&W speakers. If I could settle for listening to music in only two channels, I could live happily with the HK 990.
Description: Solid-state two-channel integrated amplifier with analog/digital inputs, tone controls, bass management, and system equalization. Line-level analog inputs: 6 pairs single-ended (RCA), 1 pair balanced (XLR), processor HT bypass (RCA), 2 subwoofer (RCA). Phono inputs: 1 moving-magnet, 1 moving-coil. Digital inputs: 2 optical, 2 coax, 1 HRS. Line-level analog outputs: 2 L/R, 2 subwoofer. Digital outputs: 2 coax. Output power:
150Wpc into 8 ohms (21.75dBW), 300Wpc into 4 ohms (21.75dBW). Line-level input sensitivity: 350mV. Line-level input impedance: 43k ohms. Phono input sensitivity: 10mV (MM), 1mV (MC). Phono input impedance: 47k ohms (MM), 100 ohms (MC). Frequency response: 10Hz–170kHz, +0/–3dB at 1W; 20Hz–100kHz at half power. Signal/noise ratio: 109dB (line), 75dB (MC), IHF-A (–3dB). THD, both channels driven: <0.03%, 20Hz–20kHz, at 150Wpc (8 ohms); <0.3%, 20Hz–20kHz, at 300Wpc (4 ohms).
Dimensions: 17 5/16" (440mm) W by 6.5" (165mm) H by 17 1/8" (435mm) D. Weight: 43.1 lbs (19.6kg).