Ls3 5a 11 ohm crossover for mac

Is it worth trying to use my amazing old 15 ohm monitors with a new panasonic scpmx70 3 ohm or should i just stick. Ls3 5a prefer valves and the top on the quad 11 is a good match. Out of 11 pairs, we rounded up four 15 ohm and seven 11 ohm, and the 11 ohm models took 1st, 3rd, 5th and 6th places, clearly indicating were this a grand prix that the 11 ohm team beats the allegedly superior, 15 ohm originals. Stirling opted for the 11ohm version, not least because it was both easier to manage and far more reliable in ensuring. When used with the stirling broadcast bbc licensed ls35a shown in the photograph above it makes an exceptional. The last 11 ohm ls35a uses the different kef b110 sp1228 6 ohm drive units and crossovers fl638. Mistral ls3 5a 11 ohms 50w x 2 monitor speaker brand new. The speaker concept set out transparent and natural sound as the goal, and the achievement of the end result is widely acknowledged. Lowpowered amplifiers will not drive the speaker to very high levels. Find great deals on ebay for ls3 5a speakers and rogers ls3 5a.

The new crossover made biwiring possible and although ls35as were always used by the bbc with the terminals strapped, this made the speaker more attractive to consumers. This crossover is available from us and is used in our current production 15 ohm bbc licenced ls3 5a. The falcon acoustics classic 15 ohm ls3 5a, fully licenced by the bbc, and handassembled by falcon in oxford england. I remember like it was yesterday the first time i heard a pair of rogers ls35as, property set up on stands well away from all walls of a well dimensioned listening room. Drawing on decades of experience of loudspeaker design starting in the 1970s when he worked for the bbc, derek hughes designed the stirling broadcast ab2 bass extender to seamlessly integrate with all versions of the legendry ls3 5a including both the classic 15 ohm and 11 ohm.

I find that the rogers are picking up the harsh sound of the naim. The bbclicensed ls35a help make rogers into a global brand. For one thing the original was a 15 ohm speaker, followed some years later by a more ampfriendly version that was 11 ohms. The third photo is compared with rogers 11ohm original products. We wont labor the ls35a story, which began in the bbc in early 1970s, as this was covered in depth in vol1 no3 mayjune 2007. Stirling ls35a v2 le speakers bbc licensed like rogers. There are only 4 major components to the speaker, the cabinet, the b110 bassmid driver, the t27 tweeter and the crossover. What impedance you classify this system is anyone guess.

Original ls35a are never going to go that loud anyway. The bbc dip was a shallow shelfdown in the acoustic output of some bbcdesigned speaker system of the 1960s1980s in the 1khz to 4khz region. Kef 11 ohm 226 audiomaster 15 ohm 217 rogers 11 ohm 212. Due to the new 8 ohm drivers and the revised crossover, fl623, the nominal. This model would hardly be the choice for bass fetishists but the midband simply cossets female vocals. There are three different speakers from audio space, each of which pays homage to the ls3 5a. My little rogers ls35a bbc monitors surprised me again today. The ls3 5a have the same drivers but have a different sound the rogers brings more but slightly woollybass, and the kef is flatter sounding but rolls off quickly after 100hz and a bit more apparent detail. Slight physical modifications are made to the monacor units and a replacement crossover board is provided to tailor the monacors response to the desired ls3 5a response. Before 1987 the 15 ohm version ls3 5a used a kef b110 sp1003. Is ls35a 15 ohms speaker better than the 11 ohms ls35a speaker. Stirling ls35a v2 le speakers bbc licensed like rogers, spendor, harbeth, etc for sale. The stirling ab2 is 48mm taller and the plinth is larger, measuring 25mm x 255mm x 235mm hxwxd making the ab2 a stable platform on which to sit the ls35a. Graham audio, chartwell ls35 bookshelf monitor speakers.

Stirling broadcast offer an ls35a repair kit based on the monacor drive units that are often touted as a dropin replacement for the main drive unit of the ls35a the b110. The finalized 11 ohm crossover was designated fl638 sp2128 and around 1987 both the crossover and drivers were supplied by kef who started using computer. All the 11 ohm crossover networks were manufactured. Having previously manufactured over 50,000 pairs of ls3 5a s, rogers are now once again manufacturing this landmark speaker in the uk.

Horses for courses i know my ls35a well enough to know when they are telling me when a mix is off. However, with digital material, problems which were only hinted by analogue material were now clearly. There are few hifi designs more iconic than the bbc ls35a loudspeaker. Note that all of the 11 ohm models, except for the xlr rogers and the harbeths, were biwireable to cater for the ab1 subwoofer. My little rogers ls35a bbc monitors surprised me again. Get in the sweet spot, close your eyes, and you simply wont believe your ears. Up for your consideration is a pair of masteraudio ls35a 11 ohms serial number. As well as reading this article i suggest you download and read this bbc research department pdf which describes from the horses mouth the design of the 15.

Kef, having carried out a research program to render the design more consistent in. My little rogers ls35a bbc monitors surprised me again today discussion in audio hardware started by. About 38 watts from the 8 ohm tap into ls3 5a s is not very much juice so i wasnt expecting any. Hegel launches 7 day home trial program in australia. What with the bbcs vagaries about several aspects of the design, including the crossover and the cabinet, and the inconsistencies of the b110, it was inevitable that there were subtle, and sometimes not so subtle, differences from one licensees ls35a to anothers. An elaborate and costly crossover is employed to equalise the drivers to a strict specification. Peerless xls 835028 mac subwoofer speaker falcon acoustics. History has been remade by venoth nair with the grills on you cant really tell the difference between the chartwell and other ls35a speakers.

The 11 ohm version variations in the bass driver behaviour became unacceptable around the mid1980s, so a new driver was designed alongside a simpli. The ab2 is available in a wide choice of veneer options, please check with your dealer. Bbc ls35a speaker information and external crossover. Up for your consideration is a pair of masteraudio ls3 5a 11 ohms serial number. Pair diy kit pair speaker box for rogers ls3 5a bbc spec ebay. Note that some rogers units with serial numbers in the 30,000 series are actually 11 ohm units although the factory was still using the old 15 ohm label. Post 1987 the 11 ohm version used the kef b110 sp1228. The measured voltage sensitivity was very low, at a fraction over 82dbwm. The ls35a have the same drivers but have a different sound the rogers brings more but slightly woollybass, and the kef is flatter sounding but rolls off quickly after 100hz and a bit more apparent detail.

The first ls35a production crossover was the fl623 from 1974 and this went through various modifications over the years, due to variations in the kef units. Drawing on decades of experience of loudspeaker design starting in the 1970s when he worked for the bbc, derek hughes designed the stirling broadcast ab2 bass extender to seamlessly integrate with all versions of the legendry ls35a including both the classic 15 ohm and 11 ohm. This results in a slightly lower overall impedance, to an 11 ohm characteristic. As with most legends the ls3 5a has a large following. I dont think the rogers is a very good match with the naim. Yet i have also heard that the speakers have been improved somewhat over time, so my curiosity got the best of me and i purchased a 3 year old pair of the rogers. It has become common to use the 15 ohm and 11 ohm versions to describe the different types. Outstanding features strong resemblance of the legendary bbc ls35as solid and beautiful cabinet construction real wood veneer red cherry or black walnut biwiring function high quality dr. This resulted in a slightly lower average impedance, giving rise to the term 11 ohm for this revised version, which appeared from 1988. The loudspeaker is now in production both by the bbc equipment department and also by three commercial licencees. Pair speaker box for rogers ls3 5a, rogers ls 3 5a rosewood bbc spec.

Theyre a very popular combination in the ls3 5a community. Unfollow rogers ls3 5a to stop getting updates on your ebay feed. Pair speaker box for rogers ls3 5a, rogers ls 3 5a ebony bbc spec. Is ls35a 15 ohms speaker better than the 11 ohms ls35a. The ls3 5a each element pronounced separately, without the stroke is a small studio monitor loudspeaker originated by the bbc for use by outside broadcast vans to ensure quality of their broadcasts. Around 2007 audio space brought out their gini ls3 5a. Ive been told the best amps for the ls35a are push pull tubes. Ls35a ls35a b110 t27 11ohm speaker crossoverreplica one. Ls3 5a classic 15 ohm speaker a true classic rogers international uk ltd are pleased to announce the release of the reborn ls3 5a classic 15 ohm speaker. The ls35a does not have this effect, neither in the 15 ohm nor 11 ohm, both of which are in fact slightly lifted in that region. About 38 watts from the 8 ohm tap into ls35as is not very much juice so i wasnt expecting any dynamic drive. Gather a bunch of ls35a enthusiasts together and youll soon find. The ls35a has the drivers in the normal orientation, with the tweeter above the.

Rogers ls35a bbc monitor 35a, rare 15 ohm version original matched pair. Jul 23, 2015 the bbc issues no more than three manufacturing licenses for the ls3 5a at a time, but during the speakers long life rights to manufacture it have been awarded to audiomaster, chartwell, harbeth, kef, rogers, spendor, stirling broadcast, and now falcon acoustics. It is the only ls3 5a in production that faithfully replicates the original bbc design published in october 1976. Stirling had to rethink the product when kef finally ceased manufacturing the drive units in about 2000. Ls35a i have owned spendor ls35as for 20 years, and always heard that all ls35as sounded pretty much the same. Audiophiles who collect ls3 5a knows ls3 5a would typically appreciate in value. The latest ls3 5a uses different units and the crossovers fl638 units are not interchangeable. Dec 31, 2011 i have a pair of 11 ohm rogers ls35a speakers. The finalized 11 ohm crossover was designated fl638 sp2128 and. The crossover itself is mounted behind the tweeter and damped by a thick felt pad to prevent. Sorry for take this a little off channel, i have heard with first ear experience with 2 model of avg horn 18ohm omega series with airtight 211 and 300b before 8. These are the limited edition, gold label version with superspec v2 crossover and re. Im the first owner and i have enjoyed it for 2 years.

The specification was for a small monitor for use in outside broadcast. The latest ls3 5a uses different units and the crossovers fl6 38 units are not interchangeable. You are looking at a 2 month old preowned pair of falcon acoustics original classic 15 ohm ls3 5a loudspeakers, in oak finish. In order to continue making licensed ls35as, stirling broadcast began using drivers sourced from seas and scanspeak. In 1988 the speakers nominal impedance dropped to 11 ohms, but falcon. Oct 21, 2008 ls3 5a and quad 11 actually arent such a problem. Almost nos stirling ls35a v2 le speakers these are pretty much closetobrandnew stirling ls35a v2 speakers. Their imaging was so good that you will swear continue reading what is it about the rogers ls35a. I demod some quad s1 speakers and these were splendid little speakers, but thinking what more i might be able to get from the second hand. Original ls3 5a are never going to go that loud anyway. This is the page to try to help fix those that dont. These are not interchangeable with 15 ohm version components.

It was derived from the ls35, which was conceived and developed by the bbc engineering department in the early 1970s, when it was under the stewardship of dudley harwood. Is ls3 5a 15 ohms speaker better than the 11 ohms ls3 5a speaker. The ab2 is sold with our standard 5 year warranty on the drive units and crossovers. Slight physical modifications are made to the monacor units and a replacement crossover board is provided to tailor the monacors response to the desired ls35a response. The new crossover made biwiring possible and although ls3 5as were always used by the bbc with the terminals strapped, this made the speaker more attractive to consumers. Dec 15, 20 my little rogers ls3 5a bbc monitors surprised me again today.

The ls3 5a design is from an era when a neutral frequency response was the most important consideration for making production judgements about sound. A current licence for the 15 ohm ls35a is held by falcon acoustics reception. Despite not being a commercial product at the outset, the ls35a was commercially successful in its twentysomethingyear life, from 1975 until approximately 2000, when the availability of kef drive units came to an end. There are many legacy ls35as up to 35 years old that still work very well. John atkinson suggests in stereophile that the ls35a is ideally suited to the reproduction of program having a limited dynamicrange. Falcon acoustics original classic 15 ohm ls3 5a loudspeakers worldwide shipping.

According to trevor butler, writing in the march 1990 issue of the british. Peerless xls 835028 mac subwoofer speaker is a member of the famous peerless. The latest ls35a uses different units and the crossovers fl638 units are not interchangeable. The ls35a is a commercially produced loudspeaker driven by the need of the bbc to monitor and assess broadcast programme quality. It was their own rendition of the legendary ls3 5a inspired monitor in a kit form. Its current far east owners have worked with the uk designers an manufacturers to create this bbclicensed 11 ohm revival. The ls35a is a small studio monitor loudspeaker originated by the bbc for use by outside. Ls35a biwire crossover 15 ohm kef b110 sp1003 t27 sp1032, crossover 23ab, ab hf section. Licensed to youtube by the orchard music on behalf of plaza mayor company, ltd. As a result of these two things, the crossover comprises a very large number of components to perform the necessary. Ls35a prefer valves and the top on the quad 11 is a good match. Stirling broadcastls35a v2 speakersspeakersacoustic sounds.

The ls3 5a has consistently done well in previous liveversusrecorded sessions and fairly well on analogueprogramme sources. This crossover is available from us and is used in our current production 15 ohm bbc licenced ls35a. This is not particularly helpful as the impedance curve fig. They only called it the audio space ls35a because they felt that they had finally been able to replicate the essence of the. Horses for courses i know my ls3 5a well enough to know when they are telling me when a mix is off. The ls35a design is from an era when a neutral frequency response was the most important consideration for making production judgements about sound. The first ls3 5a production crossover was the fl623 from 1974 and this went through various modifications over the years, due to variations in the kef units. It has become common to use the 15 ohm and 12 ohm versions to describe the different types. Audiophiles who collect ls35a knows ls35a would typically appreciate in value. What is it about the rogers ls35a audiophile addicts. Upon obtaining a bbc licence to produce legacy 11ohm ls35a, stirling broadcast commissioned kef to produce new t27 and b110 drive units.

I am looking for some standmount speakers with a natural detailed sound, something in the vein of a linn kan or ls35a, but on a bit more of a budget in order to avoid upsetting my better half too much. The falcon acoustics classic 15 ohm ls35a, fully licenced by the bbc, and handassembled by falcon in oxford england. You are covered by the ebay money back guarantee if you receive an item that is. I was very impressed with the stirling ls35a v2, though its slightly forward treble balance is going to be less forgiving of treble problems in the rest of the system than was the original design, and those with larger rooms will easily ask for too much from it. Gini systems ls3 5a speaker kit the rewards of diy.

Theyre a very popular combination in the ls35a community. Stirling broadcast ls35a v2 loudspeaker the absolute sound. Both of these components fit comfortably within its 5. You are covered by the ebay money back guarantee if you receive an item that is not as described in the listing. The ls3 5a is a commercially produced loudspeaker driven by the need of the bbc to monitor and assess broadcast programme quality. Oct 19, 2015 i remember like it was yesterday the first time i heard a pair of rogers ls35as, property set up on stands well away from all walls of a well dimensioned listening room. Expecting nothing i just wanted to use the amps, exercise them, if you will.

Stirling broadcast offer an ls3 5a repair kit based on the monacor drive units that are often touted as a dropin replacement for the main drive unit of the ls3 5a the b110. Masteraudio ls35a 11 ohms for sale canuck audio mart. Performance and handling of the ls35a the bbc rogers ls35a speaker system incorporates a unique phasecorrected crossover design, as well as a very complex inunit equalizer. Kef stopped manufacturing the t27 and b110 driveunits used in the ls35a. The bbc monitor ls35a rogers 11 ohm lacquered kessler kollection rogers 11 ohm xlr belonging to andy whittle of exposure. The overall impedance of the crossover fell to 11 ohms from the original 15 ohms. Falcon acoustics classic 15 ohm ls35a the only genuine ls35a in production. These two versions are usually known as the 15 ohm ls35a and the 11 ohm ls35a.