Rogers

The LS3/5A — the BBC monitor that launched a thousand imitators

History

Rogers International was founded in London, England in 1947 by Jim Rogers. The company initially produced public address equipment before transitioning to hi-fi speakers in the 1950s. Rogers became known for high-quality drivers and crossover networks.

The company's breakthrough came when it was selected as one of the manufacturers of the BBC LS3/5A monitor speaker in the 1970s. The LS3/5A was developed by the BBC Research Department as a small monitor for use in OB (outside broadcast) vans and control rooms where space was limited.

The LS3/5A used a 5" KEF B110 bass/midrange driver and a 3/4" KEF T27 tweeter in a tiny sealed enclosure of approximately 5 liters. Despite its diminutive size, the LS3/5A achieved remarkable accuracy and coherence, becoming a reference standard for small monitors.

Rogers produced the LS3/5A under license from the BBC from 1974 until the early 1990s, manufacturing over 50,000 pairs. The design remained essentially unchanged throughout production, with Rogers maintaining the strict BBC specifications.

The company also produced larger speakers including the Studio 1, Studio 3, and Studio 7, as well as the export-oriented Export Monitor series. Rogers maintained a reputation for careful engineering and quality construction.

Key Facts

Legendary Products

Rogers LS3/5A (1974-1990s)

The most famous small monitor speaker in history. Developed by the BBC and manufactured by Rogers under license, the LS3/5A achieved remarkable accuracy from a tiny sealed enclosure. Used in BBC OB vans, recording studios, and by discerning audiophiles worldwide.

Rogers Studio 1 (1970s)

A larger two-way speaker using an 8" woofer and dome tweeter. The Studio 1 offered more bass extension than the LS3/5A while maintaining the accuracy that defined Rogers speakers.

Rogers Studio 3 (1970s)

A three-way floorstanding speaker that brought Rogers quality to larger rooms. The Studio 3 used a 12" woofer, midrange, and tweeter for full-range sound.

Rogers Export Monitor (1970s-1980s)

A series of speakers designed for international markets, including the popular Export Monitor 7. These maintained Rogers' reputation for quality while offering various sizes and configurations.

Classic Models Reference

Sound Signature

Rogers speakers are characterized by:

• Midrange accuracy - Vocal and instrumental realism
• Coherent imaging - Point-source accuracy
• Sealed bass - Tight, controlled low frequencies
• BBC heritage - Monitor accuracy
• British refinement - Sophisticated, musical presentation

Collecting Rogers

Vintage Rogers gear is valued for:

• LS3/5A - The classic small monitor
• BBC specification - Strict adherence to design
• 15-ohm versions - Early models most collectible
• Original condition - Unmodified units preferred
• Matched pairs - Consecutive serial numbers desirable

Most collectible models:

• LS3/5A - The iconic monitor
• Early LS3/5A - 15-ohm versions
• Studio series - Larger Rogers speakers

Restoration Tips

Common Rogers service items:

• Replace capacitors in crossover (critical for LS3/5A)
• Check KEF drivers (B110 and T27)
• Refinish cabinets (re-veneer if needed)
• Replace grille cloth (match original)
• Verify impedance (15-ohm vs 11-ohm)

Competitors & Comparisons

Rogers vs KEF: Both LS3/5A manufacturers; similar sound

Rogers vs BBC: Rogers manufactured BBC design

Rogers vs Harbeth: Similar BBC heritage; different approaches

All Models in Archive (19)

Speakers

• Rogers - British Monitor Heritage

Amplifiers

• PM-510 - 1976

Cassette Decks

• ROGERS-WAFER - 1980
• ROGERS-WAFER-SYSTEM-II - 1980

Speakers

• BBC-Studio-Monitor (LS3/6) - 1975
• CADET - 1972
• LS1 - 1976
• LS2 - 1978
• LS3/5A - 1975
• LS5 - 1975
• LS5/8 - 1975
• LS6 - 1975
• LS7T - 1977
• Ravensbourne Speaker System - 1970
• Ravensbrook Speaker System - 1975
• ROGERS-COMPACT-MONITOR - 1978
• ROGERS-EXPORT-MONITOR - 1975
• ROGERS-MINI-CADET - 1975
• STUDIO-1 - 1975
• STUDIO-1A - 1975