Harman Kardon HK 6300 (1989–1991)
The HK 6300 is a solid-state integrated amplifier made by Harman Kardon from 1989 to 1991. It sat in the middle of the company's late-1980s integrated amplifier line, below the flagship HK6500. Like the bigger amp, it has loudness correction, a subsonic filter, and mono/stereo mode selection. It carries Harman Kardon's "High-instantaneous Current Capability (HCC)" and "Ultrawide Bandwidth" design traits - the company's house approach to current delivery and wide frequency response during that era.
The HK 6300 is rated at 2 x 60 watts RMS into 8 ohms and accepts speaker loads from 4 to 16 ohms. Inputs are phono (switchable between MM and MC), tuner, CD, video, two tape loops (Tape 1 and Tape 2, each with record and play), and an external processor loop. Two pairs of speakers can be connected (A and B), with a minimum of 8 ohms per pair, or 16 ohms when running both pairs at once. One Finnish seller called it "laadukas japanilainen" - quality Japanese - though the amp's actual country of manufacture isn't clearly documented.
Documentation on this model is thin. The owner's manual dates to 1989, and period commentary is scarce. No formal magazine reviews of the HK 6300 have surfaced in the archive. What exists today is mostly marketplace history. Listings describe the amplifier as working well with some cosmetic wear from age, and asking prices in recent years have ranged widely, from about €25 up to HUF 70,000 (roughly €180). One listing offered monthly payments from €8.42 over 24 months.
Known specifications
- Type: Integrated solid-state amplifier
- Output: 2 x 60 watts RMS into 8 ohms
- Speaker impedance: 4–16 ohms
- Inputs: Phono (MM/MC switchable), Tuner, CD, Video, Tape 1 (Rec/Play), Tape 2 (Rec/Play), External Processor
- Speaker outputs: A, B (8 ohms min each), A+B (16 ohms min)
- Features: Loudness correction, subsonic filter, mono/stereo mode
- Years made: 1989–1991
If you own one and have the owner's manual or service notes, the archive would welcome the details. THD, frequency response, damping factor, and dimensions are all missing right now.
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