LS3/5A production resumes
Veteran UK speaker manufacturers Rogers have just restarted production of the legendary LS3/5A, alongside that of its bigger brother, the LS5/9 (pictured below). As well as making Classic models (built to the exacting specifications of the originals), both speakers will also be available in SE (Studio Edition) versions, which are fitted with Panzerholz (a hardwood/resin compound) baffles and upgraded crossovers, for the most demanding of studio applications .
The revival is being headed by Andy Whittle, who was Rogers Technical Director back in the 90s, when the company were still making the original LS3/5A. To find out what makes that speakers design so special (and why second-hand models are still so highly sought after), well let SOS speaker guru Phil Wards fascinating history lesson (originally published in SOS June 2016) do the talking...
History Of The LS3/5A
The LS3/5A originated in the mid-'70s, at a time when the BBC designed a fair proportion of their own broadcast and studio equipment. The whole idea of state-owned broadcasters designing and building their own kit is all but unthinkable now, but right up until relatively recently, if the BBC found themselves needing a specific tool that wasn't available commercially, their Kingswood Warren research labs were tasked to come up with the goods.
The genesis of the LS3/5A was not as straightforward, however, as the Kingswood Warren boffins simply being asked to design a compact monitor and dutifully delivering. Although there was a need at the BBC for a Grade II' compact monitor for use in outside broadcast trucks, the development of the speaker that became the LS3/5A didn't kick off in direct response to such a request. In fact the progenitor was a speaker designed for one-eighth-scale acoustic modelling of concert halls...
Long before virtual' computer-based acoustic modelling of performance spaces was possible, such work was done using literal modelling techniques. A physical scale model of the space would be built and miniature speakers and microphones placed appropriately within it to analyse its internal acoustic characteristics.
Now, there is no record (well, not in any document I've found) of who the engineer was to whom it first occurred that the acoustic modelling speaker used at Kingswood Warren actually sounded pretty good and might form the basis of a compact monitor. But whoever it was, I'd wager they had no idea at the time how significant a lightbulb moment they'd had.
In the early 1970s, when our story begins, speakers, whether for domestic or professional applications, were on the whole pretty big. Stereo hadn't really been around all that long, and neither had powerful transistor amplifiers, so a single, large speaker was still the norm. Now, even if it's on the large side, positioning one speaker is far easier than positioning a pair, as is required to create a stereo image, so the physical size of the speaker wasn't so much of an issue. With stereo, however, came the problem of speaker positioning, and with that not only came the need for speakers to be smaller, but also for pairs of speakers to be closely matched in terms of performance.
It hardly seems believable now, but back then, there were very few commercially available small speakers that would satisfy the BBC's needs. One of those few speakers that was available to the BBC was the original Goodmans Maxim, and a 1965 internal Kingswood Warren report describes its performance and assesses its potential. The report was written by Dudley Harwood, who went on to found Harbeth Audio (the company name being a conjunction of Harwood's name and that of his wife, Elizabeth). The Goodmans Maxim itself was designed by a young Laurie Fincham, who went on to become Technical Director of KEF, manufacturers of the drive units eventually used in the LS3/5A. There's none of that six degrees of separation' stuff in the British loudspeaker business; one or two degrees will usually suffice.
Harwood's Maxim report, which can be found at http://downloads.bbc.co.uk/rd/pu..., makes interesting reading (well, it does if, like me, you're irrationally interested in the history of speaker design). Even without converting the archaic imperial measurements of the test results, it's obvious that the Maxim, by today's standards, was inefficient, had restricted bandwidth at both ends of the spectrum, and displayed precious little power handling. However, those shortcomings weren't issues that Harwood expressed much concern over; in fact he was generally satisfied with the Maxim's performance. The issue that was of most concern to Harwood was sample consistency.
Along with the basic requirement for a small speaker that performed adequately for broadcast quality monitoring, the BBC needed the speaker to be consistent from sample to sample. If, say, a single speaker in an OB truck failed, it would be decidedly inconvenient if the pair had to be replaced, and equally unsatisfactory if the second pair didn't sound the same as the first. So each individual speaker was required to perform within response limits that, even today, are a challenge. If the Goodmans Maxim report revealed one thing, it was that this degree of consistency would not likely be found in an existing commercial speaker. So, with a concept on the table for a design inspired by the acoustic modelling speaker, the Kingswood Warren engineers turned to KEF Electronics for help.
KEF got the call partly because, now under Laurie Fincham's engineering leadership, the company were by some distance the most technologically advanced in the field, and partly because there was already an established relationship with the BBC. An earlier research project at Kingswood Warren into thermoplastic diaphrag
Europe Stories
05/01/2027
Worlds first 802.15.4ab-UWB chip verified by Calterah and Rohde & Schwarz to be ...
09/10/2026
September 10 2026, 06:00 (PDT) Dolby Expands Dolby OptiView Platform with New Capabilities at IBC 2026
New Sports Intelligence helps providers better unders...
07/10/2026
Dalet, a leading technology and service provider for media-rich organizations, today announced the latest Long-Term Supported (LTS) release of Dalet Flex. Build...
06/10/2026
Three new compact pedals announced
Warm Audio have just introduced a new guitar pedal line-up that offers compact, pedalboard-friendly versions of some of t...
06/10/2026
Drum-replacement tool gets major overhaul
WaveMachine Labs have announced that the latest version of their drum-replacement software is now available, and i...
06/10/2026
Firmware update implements user-requested features
Arturia's stage-going keyboard series has just received a significant update that addresses some of t...
06/10/2026
(4:51 PM) Wiesbaden, October 06, 2026. Based on business performance to date, pa...
06/10/2026
Tuesday 6 October 2026
Official trailer released for The Good Daughter ahead of...
06/10/2026
Savanyu reports getting more gain from the sound system, which he credits to the capsules asymmetrical supercardioid pickup pattern.
Even with less-than-ideal...
06/10/2026
Andrew Trimble delves into the author's Belfast upbringing
Thursday, 8 Octo...
05/10/2026
New multi-pattern LDC revealed
Austrian Audio have announced the upcoming launch of a new multi-pattern large-diaphragm capacitor mic that occupies the midd...
05/10/2026
Software gains Tonex Board rig support
When IK Multimedia launched the Tonex Board, they mentioned that it would soon be followed by a significant update to...
05/10/2026
Offers a modern take on classic chorus effects
fedDSP's latest creation has been designed to offer a modern take on the classic chorus effect, combining...
05/10/2026
FOX Deepens Investment in the Creator Economy, Expanding Leadership Team to Acce...
05/10/2026
RT will provide comprehensive coverage and analysis of Budget 2027 across online, radio and television on Tuesday 6 October, with extensive reporting and analy...
04/10/2026
Dedicated streaming mic gets an overhaul
Following on from the success of their dedicated streaming microphone, the MV6, Shure have announced the launch of ...
02/10/2026
v1.9.3 introduces AUv3 support
Roland have just released an update that kits their free iPad-based software synth out with AUv3 support, meaning it can now ...
02/10/2026
Dolby Atmos support, AI-powered stem separation & more
The latest version of MOTU's DAW software is now available, and marks a major step forward with t...
02/10/2026
Portable DAC created in collaboration with Steve Levine
British hi-fi experts iFi audio have unveiled a new Master Tuned variant of their praised iDSD GR2 p...
02/10/2026
In our latest blog, Tim Pearson looks at streaming piracy from a different lens, focusing on digital trust, consumer risk, and the future of subscriber protecti...
02/10/2026
Featuring performances recorded in Cork, Kilkenny, Wesmeath and Dublin culminati...
02/10/2026
Friday 2 October 2026
Crystal Lake, a Friday the 13th' prequel series, com...
02/10/2026
Friday 2 October 2026
Sky VIP helps families celebrate the Christmas season wit...
02/10/2026
How the fertility sector in Ireland remains unregulated
Undercover filming reveals how without proper regulation the promotion of controversial fertility treat...
02/10/2026
Transforming Homes, Transforming Lives
Presenter Baz Ashmawy and his team take on four life-changing builds across Kildare, Limerick, Wicklow and Offaly in the...
01/10/2026
Third collaboration with celebrated composer
Spitfire Audio have once again teamed up with Grammy-nominated composer, producer and technologist BT, creating...
01/10/2026
FL Studio gets dedicated grid controller
Novation have teamed up with FL Studio developers Image-Line to create another dedicated controller for the popular...
01/10/2026
Six new USB interfaces introduced
Universal Audio's USB audio interface line-up has just been refreshed, gaining six new models aimed at musicians, prod...
01/10/2026
Siretta's SNYPER-5G cellular network analyser has been shortlisted for the IoT Global Awards 2026.
The IoT Global Awards recognise products, services and o...
01/10/2026
Mesh Broadcast Services Fits Big-Truck Audio Power into Compact Eclipse Unit with Calrec Argo M Canadian OB company Mesh Broadcast Services has fitted its Eclip...
01/10/2026
X-Rite Pantone Launches Spectura to Advance Connected Color Quality from Lab to ...
01/10/2026
Thursday 1 October 2026
Nominees revealed for 2026 Sky Arts Awards
Current slide, 0 0, undefined1
0
Irish National Opera and Jennifer Walshe: MARS
Jacob Al...
01/10/2026
Vital TV antenna replaced at SudburyHelicopter and broadcast engineers work together to upgrade TV services for 1.5M in the East
--
Share to Linkedin
Octobe...
01/10/2026
Arqiva appoints Simon Duffy as ChairSimon Duffy joins as Chair effective 01 October 2026
--
Share to Linkedin
October 1, 2026
Press Office
01 October 2026...
01/10/2026
Season 4 of the multi-award-winning hit entertainment series The 2 Johnnies Late Night Lock In is back, serving up another round of unpredictable laughs, unforg...
01/10/2026
New season begins Sunday, 4 October at 6pm on RT lyric fm and RT Listen
RT lyric fm's arts and culture documentary series The Lyric Feature returns on S...
01/10/2026
RT is proud to continue its commitment to supporting and celebrating the arts across Ireland this October, highlighting a vibrant programme of theatre, music, ...
30/09/2026
Add an envelope generator to any plug-in
Sync Audio's latest creation is a handy utility plug-in that can be used to combine and modulate other effects ...
30/09/2026
All-analogue tape-style drive joins Series A
Strymon's reputation was built on their digital knowhow, so many were surprised (and intrigued) when they a...
30/09/2026
Two new expansion packs released
Sonuscore have just introduced two new expansion packs for The Pulse, its production engine instrument for modern cinematic...
30/09/2026
eds3_5_jq(document).ready(function($) { $(#eds_sliderM519).chameleonSlider_2_1({...
30/09/2026
Luxembourg, September 30, 2026 - SES and Sky have extended their long-standing partnership in a new multi-year agreement for direct-to-home (DTH) satellite serv...
30/09/2026
New Solution Expands Harmonic's Network Intelligence Portfolio and Brings Comcast-Developed Fiber Monitoring Technology to Broadband Operators, Providing Re...
30/09/2026
How to Shop Well Now starts Monday at 9.35pm
on RT One and RT Player
On the...
29/09/2026
Two new plug-ins launch alongside updated bundles
Zynaptiq have just announced the launch of two new plug-ins, alongside new and improved versions of two of...
29/09/2026
All-in-one bus processor revealed
Wes Audio's ng product range has come a long way since it was first introduced, and now includes a tasty selection of ...
29/09/2026
eds3_5_jq(document).ready(function($) { $(#eds_sliderM519).chameleonSlider_2_1({ content_source:......
29/09/2026
CMA Imaging, Sun Chemical, and X-Rite Pantone Help Brands Accelerate Metal Packa...
29/09/2026
NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION IN OR INTO OR TO ANY PERSON LOCATED OR RESIDENT IN, OR AT ANY ADDRESS IN, THE UNITED STATES OF AMERICA, ITS TERRITO...
LS3/5A production resumes 
