Harman Kardon HK2500
Dolby B NR

The Harman Kardon HK2500 is a stereo cassette deck with Dolby B noise reduction, it was introduced by Harman Kardon in 1978 with a list price of USD $319 and discontinued 2 years later in 1980.

The main features of the Harman Kardon HK2500 are: 2 heads, analog 3 digit tape counter, manual tape type selection with support for normal, chrome and ferro-chrome tapes with additional manual equalization selection, 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 HK2500 are analog needle VU reading meters. Mechanical transport controls for reliable HK2500 transport function selection.

The Dolby-B system reduces tape hiss on tapes recorded on the HK2500 by as much as 10 dB at the highest frequencies. A Subsonic filter is provided in the HK2500 to prevent infrasonic signals generated when playing a warped record. These signals can upset the Dolby system and prevening it from functioning properly.

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.

Compact Cassette

Historic events

1978 The first satellite in the modern Navstar Global Positioning System (GPS) is launched.
1979 Introduction of the Australian made Fairlight Computer Musical Instrument, the first polyphonic digital sampling synthesiser.
1980 Pac-Man arcade game developed by Namco released in Japan.

Features of Harman Kardon HK2500

Calibration
Calibration
Bias Over/Under Selector
Connectors
Connectivity
2 Mono Microphone Inputs RCA Input/Output Connectors Headphones
Display
Display
3-Digıt Mechanical Counter Analog Needle Meters
Cassette Exterior
Exterior
Silver Finish Orientation Left Front Loading
Compact Cassette
General
Stereo
Head
Head Configuration
2 Head Desiǥn 4 Track / 2 Channel
Indicators
Indicators
Record Tape Run Indicator Cassette Back Lighting
HighCom NR
Noise Reduction
Dolby-B Noise Reduction Subsonic Filter
Controls
Operation
Line / Mic Input Select Mechanical Transport Control
Preamplifier
Preamplifier
Individual Input Level Controls Output-Level Control
Tape Speed
Speed
1⅞ ips - 4.76 cm/s
Tape
Tape
Manual Tape Type Selection Ferro-Chrome Tape Capabılity Normal Tape Capabılity Manual Tape Equalization Chrome Tape Capabılity
Transport
Transport
Mechanical Tape Loading Auto Stop Sìngle Capsŧan Transport Belt Drive (Capsŧan)

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Last update on Mar 28, 2024 12:11:40 PM CET

Similar to Harman Kardon HK2500 from the period 1978 - 1980