Bang & Olufsen Beovox 5700

A 3-way bookshelf loudspeaker system with passive radiator bass enhancement,

Overview

The Bang & Olufsen Beovox 5700 is a 3-way bookshelf loudspeaker system designed for high-fidelity audio reproduction. Housed in a rosewood-finished enclosure, the Beovox 5700 combines compact dimensions with an extended frequency response down to 25 Hz, making it a technically advanced speaker for its size and era.

Specifications

Product type	3-way bookshelf loudspeaker system
Design	3-way, 3-speaker system with passive radiator (drone cone)
Drivers	25 cm (10") cone woofer, dome midrange, dome tweeter, passive radiator (Doron Cone system)
Frequency response	25 Hz to 20 kHz
Rated power	60W RMS
Maximum power	100W (music)
Impedance	4–8 Ω
Distortion	≤ 1%
Crossover frequencies	600 Hz, 6 kHz
Cabinet volume	47 liters
Dimensions (W x H x D)	360 x 660 x 300 mm
Weight	22.5 kg
Original price	¥ 145,000 (approx. 1973)

Design

The Beovox 5700 uses the Doron Cone system, combining a 25 cm active woofer with a passive radiator for deep bass response without a ported enclosure. Mid and high frequencies are managed by dome drivers, The speaker is housed in a rosewood-finished cabinet, reflecting Bang & Olufsen’s emphasis on aesthetic integration with home environments.

Market

Crossover capacitors are a known failure point due to age, but replacement kits and component location charts are available for repair, supporting long-term maintenance of the system.

eBay Listings

Bang & Olufsen BEOVOX 5700 vintage audio equipment - eBay listing photo 1

Vintage Bang & Olufsen Beovox 5700 1 Speaker

$225

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