Bang & Olufsen Beocenter 4600


DetailsProduct specificationService manual

Details

Beocenter 4600

Beocenter 4600 emerged as a worthy successor to the Beocenter 3600. Notably, it introduced an AM radio section, thus offering a comprehensive range of audio sources. While the cassette section remained largely unchanged, it added a convenient tape counter with a “memory” stop at “000.” Additionally, the receiver, based on the Beomaster 1500, benefited from enhancements consistent with the rest of the B&O lineup. As a result, users widely adopted the Beovox S 35 loudspeakers, contributing significantly to the model’s appeal.

Features of the Beocenter 4600

The Beocenter 4600 functioned as a multi-functional unit, incorporating a 2 x 25 watts RMS AM/FM receiver, an intuitive hi-fi cassette deck, and an automatic record player. Moreover, the lightweight tonearm featured built-in bias compensation and utilized Bang & Olufsen’s MMC 20S pickup cartridge with a spherical diamond stylus.

AM and FM Tuner Quality

The AM radio effectively covered both long and medium wavebands, ensuring outstanding reception quality and high selectivity. An Automatic Gain Control circuit, active noise suppression, and hybrid filters enhanced this performance. Furthermore, the highly sensitive FM tuner allowed users to pre-set up to four stations, enabling quick access.

Hi-Fi Cassette Deck Features

The hi-fi cassette deck included features typically reserved for separate high-end models. Specifically, these features encompassed:

A 3-digit counter with a memory function

Electronic tape stop at the end of play

Dolby B Noise Reduction

Compatibility with both chrome and normal tapes

Importantly, the super Permalloy tape head not only proved durable but also ensured a long lifespan for optimal performance.

User-Friendly Record Player

The record player operated automatically, with users controlling all functions through a single button, which added to its user-friendliness. In addition, the anti-skating mechanism worked automatically, further simplifying the experience. As mentioned earlier, the MMC 20S pickup cartridge played an integral role in this unit’s design.


Product specification

Type Numbers:

2631 (1977 – December 1980)

Designer:

Jacob Jensen

Manufacturing Period:

1977 – 1980

Available Colour Options:

Rosewood, Teak

BeoCenter 4600 Product Specifications


Amplifier Specifications

Power Output (RMS DIN)

2 x 25 watts at 4 ohms

2 x 20 watts at 8 ohms

Harmonic Distortion

< 0.1%

Intermodulation Distortion

< 0.15%

Frequency Range

20 – 30,000 Hz

Tuner Specifications


FM Frequency Range

87.5 – 108 MHz

LW Frequency Range

150 – 350 kHz

MW Frequency Range 520 – 1610 kHz

Record Player Specifications


Pickup Cartridge MMC 20 S

Recommended Tracking Force 15 mN / 1.5 g

Speed Control Range 33 – 45 rpm / > +/- 3%

Wow and Flutter < +/- 0.09%

Rumble (Weighted) 62 dB

Rumble (Unweighted) 42 dB

Tape Recorder Specifications


Wow and Flutter < +/- 0.2%

Speed Deviation +/- 1%

Fast Forward and Rewind (C60) 85 seconds

Service manual

Beocenter 4600 service manual can be downloaded here for free.