Musical Fidelity LS3/5A Closed-Type Monitor Loudspeaker

The Musical Fidelity LS3/5A is a faithful recreation of the legendary BBC R&D 1976/29 monitor, engineered for precision listening in compact spaces. Originally designed for broadcast control rooms, it delivers exceptional tonal accuracy and midrange realism in a compact sealed enclosure.

Its closed-box design ensures tight, controlled bass and superb imaging, making it ideal for near- to mid-field listening between 2–4 metres. The LS3/5A is built using traditional materials and construction methods to preserve the authentic sound character that made this design iconic.

Features

• Authentic closed-type monitor based on BBC R&D 1976/29 specification
• Two-way sealed cabinet design for accurate, controlled bass
• Exceptional vocal clarity and midrange transparency
• Highly precise stereo imaging and natural tonal balance
• Optimised for 2–4 metre listening distance
• 110mm bass/midrange driver
• 19mm dome tweeter
• 12mm birch plywood cabinet construction
• Palisander veneer finish
• 15 Ohm nominal impedance

Specifications

Acoustic Design

• Type: Two-way closed-box monitor
• Frequency response: 80Hz – 20kHz ±3dB
• Nominal impedance: 15 Ohms
• Sensitivity: 82.5dB/W/m
• Recommended amplifier power: 20 – 150W

Drivers

• Woofer: 110mm cone driver
• Tweeter: 19mm dome driver

Cabinet & Dimensions

• Cabinet material: 12mm birch plywood
• Finish: Palisander veneer
• Dimensions (H × W × D): 305 × 190 × 165mm
• Weight: 4.9kg per speaker

What’s in the Box

• Musical Fidelity LS3/5A loudspeakers (pair)
• Front grilles
• User documentation