Harman Kardon HK300XM Ultrawideband Linear Phase Cassette Deck

The Harman Kardon HK300XM is a stereo cassette deck with Dolby B and HX-Pro noise reduction, it was introduced by Harman Kardon in 1980 with a recommended retail price of USD $480 and discontinued a year later.

The main features of the Harman Kardon HK300XM are: 2 heads, analog 3 digit tape counter, manual tape type selection with support for normal, chrome, ferro-chrome and metal tapes, belt driven single-capstan transport.

Typical front loading cassette deck with the cassette compartiment located on the left side of the deck. Tape eject is operated mechanically and the cassette needs to be placed with the side to be played facing forward in the cassette well.

Level meters used on the HK300XM are generic digital peak reading meters. Full-logic transport controls used on the HK300XM let it respond to the slightest finger contact for fast and effortless transport function selection.

The Dolby-B system reduces tape hiss on tapes recorded on the HK300XM by as much as 10 dB at the highest frequencies. The Dolby HX PRO system provides precise bias control during recording to reduce distortion and improve linearity in the high-frequency range, the result is recorded sound that is highly faithful to the original. To further maintain recording accuracy, the HK300XM incorporates a switchable multiplex filter. When you record FM stereo broadcasts, the MPX filter of the HK300XM can be swiched on to prevent the standard 19kHz FM pilot signal from interfering with the noise reduction system.

To make live recordings this deck has 2 microphone inputs to connect microphones with a jack connector. For undisturbed listening a jack connector for a pair of stereo headphones is supplied. Connection to other audio components for plaback can be achieved by a RCA cable and recording from a source by a RCA cable.

• Uniplane Transport
• Sendust Head