Kef Crossover Repair



Be respectful, keep it civil and stay on topic. 1 - June 1979 - 12 pages - pdf (23. The KEF LS50 Wireless are a thrilling step into audiophile sound -- in our review, maybe the best performance we’ve experienced in a bookshelf speaker. KEF LSX wireless AirPlay 2 enabled-speakers for true high-resolution stereo sound. the idea is to use 2 subs for the low end. We are able to restore, renovate and repair your beloved, but perhaps ageing loudspeakers, bringing them back to their former glory. Despite decades of leading-edge development, the Reference Series stays true to the original goals of that first model 42 years ago: using. 2 (after about a year since the last one). Klipsch, JBL, EV, Advent, Yamaha, Polk, EPI, Sansui. 3 ' (white van speaker scam guys) 3311 Avid 100 speaker parts, Celestion-Rolla-Ditton, Criterion-Lafayette. The best test would be to connect everything again (and hope he did not fry the tweeter with his experiment) a way to test if they do act as capacitors is by connecting a meter in Ohm setting and watch if the meter reacts shortly and then shows open circuit and then reverse the test wires. You are bypassing the crossover. I now see that 3 of the power caps are bad. Digitally controlled crossover points. Perfect, Crystal clear perfect imaging , very warm very detailing and aire. Speakers are current hungry so make sure your amp is 4 ohm capable. 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. But the 104/2 was a new direction for KEF speaker, going for a more-dynamic, more-sensitive presentation. More Car Tire Repair ». 73) Posted by Hpk on 2001-05-16, 16:30:00 (192. The 1960s was a hotbed. Knowing how the brain perceives sound, KEF engineers have perfected a way of beaming the sound upwards so that it’s reflected by the ceiling to replicate the vertical dimension in Dolby Atmos recordings. Le damos las gracias por haber adquirido el altavoz para graves KEF Modelo Kube-1. Stirling Broadcast offer an LS3/5a repair kit based on the Monacor drive units that are often touted as a drop-in replacement for the main drive unit of the LS3/5a - the B110. Buy KEF Q650 Center Channel Speaker – Black from Sharaf DG Online at Best Prices in UAE. Let our speaker repair experts replace and re-foam the ripped, torn, split, broken, worn out, rotted, or deteriorated surround edges on your speakers with brand new surrounds. Reference crossovers are even decoupled from the cabinet to minimise vibration and crosstalk. My Sony STR DN 1020 is an awesome 7. KEF has given its popular LS50 bookshelf speaker a modern upgrade for CES 2017, with the new KEF LS50 Wireless Hi-Fi speakers. 5-inch bass drivers and is powered by a stereo 250 watt per channel amplifier, the KASA500. The Speaker Exchange is the nation's leading authorized service center and parts distribution center for speaker repair of all major brands and manufacturers. They are the same speakers as the Rogers LS3/5a, but with a different cabinet and crossover. As well as making the Drive units KEF were asked by the BBC to make the crossover ~ This was partly political and partly because the SP1228 B110 required and allowed a change of cross over design ~ The new crossover did away with the transformer HF adjustment ~ which was always awkward to set ~ and it allowed bi-wiring of the "New 11Ω" LS3/5A. First, do only one. I've done surgery on about a dozen pairs of speakers by simply upgrading the crossover components and wiring. $1500/pair. KEF c30 crossover xover PART DIY PROJECT REPAIR SP2058 0 results. Kef T33A Replacement. Note: When a capacitor begins to dry out it is losing its wetting agent. This amplifier was literally an engineering sample KEF brought to the show. ( Brand: Kef ), ( model : UNI-Q KAR 160Q ) Review Crossovers Kx3 Kef Uni 160q Vintage Manual Speakers Kar. They have 5. Award-winning Home Theater Surround Sound Systems, made in Canada. These KEF bookshelf speakers minimize resonance for excellent audio quality, and they're finished with durable white vinyl for a modern look. Set the top and crossover aside. They said these woofers worked great and would recommend them as a good replacement. Expert non-warranty Audio Hi-Fi Equipment services UK wide. I thought it was time I did a write-up on my KEF 103. I have since decided to clean and reapply fresh ferrofluid to the NT25 tweeters. View & download of more than 857 Kef PDF user manuals, service manuals, operating guides. KEF 104/2 speaker parts: Came from a working model, the earlier version with single set of inputs (Serial number 4008 A & B). McIntosh XR5 (Advanced) Speaker Restoration Crossover extracted for repair, and damaged caps removed. Time to recap the 2nd KEF 105. I have since decided to clean and reapply fresh ferrofluid to the NT25 tweeters. KEF Replacement Parts. In the past, there was no option but to replace a dead loudspeaker with a brand new driver at significant cost and hassle. Just for shits and giggles, reverse polarity. As well as making the Drive units KEF were asked by the BBC to make the crossover ~ This was partly political and partly because the SP1228 B110 required and allowed a change of cross over design ~ The new crossover did away with the transformer HF adjustment ~ which was always awkward to set ~ and it allowed bi-wiring of the "New 11Ω" LS3/5A. Speaker Repair Experts is an information resource focused on the loud speaker repair and replacement needs of general audio enthusiasts, audiophiles, and professional sound engineers. Reference crossovers are even decoupled from the cabinet to minimise vibration and crosstalk. The enclosure features. Browse your favorite brands affordable prices free shipping on many items. We delete comments that violate our policy, which we encourage you to read. The purpose of the array is to have both frequencies coming from the same place, allowing them to integrate perfectly and create a convincingly natural sound. Now we can remove the top woofer. Balanced crossover, cabinet & drivers. My question is if anybody knows what the crossover frequency for the lf drivers? can't find it any where. For more appreciable results, some recommended the use of an active crossover setup rather than the passive crossover built into the speakers. kef two-used-kef-3-way-speaker-crossovers-sp-2055a-reference-series sp 2055a reference series Is Similar To: Ts1191 Kef T33 T-33 Tweeter Sp1191 Sp1210 For Reference 104 2 Speakers (40. Estamos seguros de que el Kube-1 le proporcionará un sonido de calidad y de altas prestaciones durante muchos años. KEF engineers computer-model the ideal crossover network before auditioning every component, individually and together, to select those with the lowest distortion. Capacitor may be paralled to achieve specified values. A History of KEF Drive Units A History of Kef Drive Units from the 1960s and 70s When KEF was founded in 1961, by Raymond Cooke and a small group of like-minded colleagues, the prime objectives were to design loudspeakers using the latest materials technology and with the best engineering methods. my speakers are an old kef which has a crossover. Kit to repair one 2 inch speaker. 25-inch Uni-Q driver arrays for distortion-free treble and premium crossovers that deliver rich, clean bass. Beneath a decorative "hat," there's a special head assembly akin to the head on the old Model R105. KEF surround sound systems are known for their excellent quality and clarity of sound, and with their durable vibration-resistant casing they're very long lasting too. Speakers for Sale. the idea is to use 2 subs for the low end. My vote went for KEF. Features KEF's patented Uni-Q driver array Certified to THX ULTRA2 and THX SELECT2 standards, the formidable Ci200QSb-THX in-wall subwoofer delivers deep bass and theatre thumping output capabilities, matched to the uncanny ability to deliver all the drama and emotional intensity of full theatre sound quality. Was used in many commercial speakers and in many kits. I'm looking for info on crossovers for the Kef 105. Unless you have a good quality LCR meter to measure what you're taking out, so you can replace it with the exact same value - don't. Technical details of KEF products. A subwoofer, by design, is made to handle the frequencies that make your main speakers want to cry for their mamma. A family of nine transducers, all easy on the pocketbook, the R Series includes a threesome of. The service includes personal collection and delivery of your cherished speakers for free within a 50 mile radius of my home. It is very tempting to throw away your old loudspeakers, just because one or two of the units have stopped working or they are sounding decidedly off-colour. 1 set is needed per pair of KEF 104/2 loudspeakers. Worked well except for two of the four woofers were now defective, and I had to destroy the cabinet bottoms to access the parts. The muddy sound followed the woofer/tweeter - so the crossover is not to blame for this particular issue. Just for shits and giggles, reverse polarity. Perfection takes time, but the results are plain to hear. KEF Center Donut Foam 4-Pack Speaker Repair Kit, 102, 103, 104, 105, 107, FSK-KEF (4 PACK). The iQ3 is the larger of two iQ standmounts, and is based on a solitary 165mm Uni-Q drive unit - an exclusive KEF coaxial design - to handle the bass, midrange and treble. Lift out the top cover along with the crossover module. And to top it off, I'm new to speaker design :-) A couple of questions: - Is it possible to create an external crossover filter and place the tweeter outside the speaker?. 5-inch bass drivers and is powered by a stereo 250 watt per channel amplifier, the KASA500. These leaflets which supply details for the respective speakers (cabinet construction, crossover and technical specification) were supplied to me in electronic form by Steve Bell on Friday and Saturday 2 and 3 January. Speaker Protection Devices at Parts Express. Let our speaker repair experts replace and re-foam the ripped, torn, split, broken, worn out, rotted, or deteriorated surround edges on your speakers with brand new surrounds. More Car Tire Repair ». The local speaker repair shop can "recone" (re-surround) the drivers (KEF isn't much help given the age)for about $50 a driver. Listening rooms. Buy C Crossover now! Crossover PCB for the C-Note Center Channel DIY speaker kit. Product: KEF 104/2 Reference Series Cabinets; 104. AR3 Speaker Repair. Perfection takes time, but the results are plain to hear. The crossover also had to undergo change, and the LS3/5 became the LS3/5A in the early summer of 1974. The speakers are not for all genre like electronic, heavy metal or rock but its perfect for jazz, classical and best when used for vocals. One crossover in each pair has an issue. Bose® Speaker Repair DHS Speaker Service or Recone service, Crossover Repair & Upgrade, I'd be happy to help you with it. Vintage Hi-Fi speakers with crossovers? (how to test?) Never seen in crossover mounted fuses, and KEF does not do that. the idea is to use 2 subs for the low end. Features KEF's patented Uni-Q driver array Certified to THX ULTRA2 and THX SELECT2 standards, the formidable Ci200QSb-THX in-wall subwoofer delivers deep bass and theatre thumping output capabilities, matched to the uncanny ability to deliver all the drama and emotional intensity of full theatre sound quality. 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. 99 AUD Inc GST Add to cart JBL Replacement Diaphragm to suit 2445H - 8Ω. The larger magnet versions also have larger voice coils & power-handling capability. A subwoofer, by design, is made to handle the frequencies that make your main speakers want to cry for their mamma. We delete comments that violate our policy, which we encourage you to read. Discussion threads can be. I set the crossover and phase to. This would cause the system not to send a signal to the horn. i want to bring them to life, but KEF doesn't make any of the driver units, so i have to repair the tweeter and the 8" drivers. with KEF’s Uni-Q time-correcting DSP crossover designed to sync. 50+ videos Play all Mix - KEF 104/2 Speaker Repair YouTube JBL Speaker Repair and Recone for 2226 Subwoofer - Duration: 49:07. We offer many different refoam kits, rubber surround kits, diaphragms, woofers, midranges, tweeters and many other parts. The Ci3160RLb has three 6. Finally my kef 104-2 are doing great. Comprehensive variety of speakers 150 at an array of pricing. Stocking circuit breakers, loudspeaker protection, polyswitch protection, tweeter protection lamps for crossovers. Hook them up to bare wire and run the test. Reference crossovers are even decoupled from the cabinet to minimise vibration and crosstalk. The measurements indicate a stellar speaker, nevermind the fact that it's a legitimate concentric driver (as opposed to other coaxial drivers with sub-par performance). KEF surround sound systems are known for their excellent quality and clarity of sound, and with their durable vibration-resistant casing they're very long lasting too. rgds, sreten. Used DIY and Repair Supplies classifieds in America. The crossover is placed somewhere in the upper bass driver box. They have 5. It is very tempting to throw away your old loudspeakers, just because one or two of the units have stopped working or they are sounding decidedly off-colour. 0 with this seriously impressive wireless desktop system - read the review at What Hi-Fi?. The 1960s was a hotbed. Hook them up to bare wire and run the test. ( Brand: Kef ), ( model : UNI-Q KAR 160Q ) Review Crossovers Kx3 Kef Uni 160q Vintage Manual Speakers Kar. Simply Speakers Kef Reference 103 3 103 4 Complete Speaker Foam Edge Repair Kit FSK-KEF103C. I love the way they sound, but they have the original crossovers and I'm feeling that they may have deteriorated somewhat since they were manufactured somewhere between 1969 and 1977. Just for shits and giggles, reverse polarity. Learn about the benefits of tire alignment, the average prices, and the signs that it's time for an alignment. Professional tweeter refurbishment / repair service for KEF T33 tweeters, restoring these units to the manufacturers specification. My Sony STR DN 1020 is an awesome 7. Based on the three different pairs of KEF Concertos I have owned during the years, I think building a pair using the new Falcon units would be a waste of money. KEF 104/2 speaker parts: Came from a working model, the earlier version with single set of inputs (Serial number 4008 A & B). It is our hope that the reader will gain a better understanding of the mechanics of loudspeaker. We are recognised in the history of loudspeaker development as one of the most important contributors and a great deal of our research has been published at well respected professional institutions, including the Audio Engineering Society and the Institute of Acoustics. You can see and hear the lineage. I am including the mounting. The KEF T2 slim-line sub packs a punch without flooring your decor plans The slimmer sub Not your usual bulky cube, the KEF T2 subwoofer is designed to be as slim as possible for a more discreet appearance. Many older crossovers used cheaper parts such as electrolytic caps which tend to lose their effectiveness over time. 25-inch Uni-Q driver arrays for distortion-free treble and premium crossovers that deliver rich, clean bass. The enclosure features. Crossover Repair & Rebuild with Audiophile Grade Components, Custom Built 800VA AI-1 Dreadnaughts, Custom Fabricated Interconnect and Speaker Cables. I can only assume that, if you want Kef to carry out the repair, they are charging £50 to put you off as it is a simple job that any dealer with a screwdriver can do. Crossover service with the possibilities of sound quality improvement. I don't want to modify my speakers if I can avoid it. Time to recap the 2nd KEF 105. This would cause the system not to send a signal to the horn. JBL®, Jensen®, KEF. Your Source for repair and restoration of vintage audio (619)-282-9101 or toll free (800)-544-2100 3401-F Adams Ave San Diego, CA 92116 - <- click for map. WAM Engineering experimented with the Seas Prestige CA26RFX (H1305) as a replacement for the 10" woofers in the Kef 107 speaker. The original 104aB was one of the least-transparent speakers I ever tried. What We Do. Each set comprises 2 pairs of 16 no. We have an excellent shop in town so they know what to do but it's a difficult, laborius repair. i have attempted to service and it is not possible. I doubt very much they can repair these nowadays, but I think they know of a place that recones KEF Reference, so they may repair crossovers too. Inductors should be air. I would agree with you regarding KEF speakers produced before the 104/2. Dan the sales manager at KEF told me to set up the sub itself with the crossover set full out to 140Hz and to do the crossover at the app. Chose not to repair but add a heavy duty one inch 4 ohm dome tweeter and crossover which could handle much higher loads. This relatively high sensitivity loudspeaker, at 92dB/W/m at 4 ohms, produced frequencies from 55Hz to 20kHz (+-2dB) with five drivers. Speakers for Sale. Non-polar electrolytics are known to age or dry out over time and adhesives can lose their grip. The 160mm Uni-Q driver used in the other reference series speakers is used for upper mid and high frequencies. Perfectionism takes time, but the difference is clear. We’ll also briefly touch on a speaker refoam job. Discuss: KEF Q15 - speakers Sign in to comment. Find many great new & used options and get the best deals for NOS - Vintage KEF X-Over Crossover SP2136X SP 2136 A KEF Electronics Limited at the best online prices at eBay!. Your Source for repair and restoration of vintage audio (619)-282-9101 or toll free (800)-544-2100 3401-F Adams Ave San Diego, CA 92116 - <- click for map. WAM Engineering experimented with the Seas Prestige CA26RFX (H1305) as a replacement for the 10" woofers in the Kef 107 speaker. Kef Speaker Replacements. 2's constant resistance was achieved with the aid of KEF's extensive computer-aided design and engineering facilities, which were able to design impedance-correcting networks for each driver as well as the frequency-shaping and level-matching networks needed to perform the crossover functions. Search and compare second hand Hifi equipment from 400+ sources world wide. JBL®, Jensen®, KEF. way-active-crossover-circuit-diagram. Shop Springfield Speaker Repair. the problem with the KEF's i bought is a torched tweeter and the 8" drivers are crumbling on the inner edges. block the bass from the mids, block the bass and mids from the tweeters, block mids and highs from the woofers). KEF has been at the forefront of loudspeaker design and technology for 50 years. The 1980s were notable for best selling budget speakers such as the Coda II, the implementation of advanced technology in Reference Series models such as the legendary 104/2, the mightly KM1 studio monitor and the introduction of Uni-Q which was to become KEF's key technology to the present day. Kef LS50 $750/speaker. * repareren van gescheurde,ingedeukte,vervormde of beschadigde konussen en centreringen * herstellen van. For more appreciable results, some recommended the use of an active crossover setup rather than the passive crossover built into the speakers. Most speaker boxes have an electronic circuit inside them called a crossover. Beneath a decorative "hat," there's a special head assembly akin to the head on the old Model R105. Lots of wear and tear present, tried to show everything in the pictures, viewing accepted before the end of the auction. The E301c centre speaker was designed from the start as a single perfectly balanced system with the crossover, cabinet and drivers working together in harmony. We have options for most vintage repairs where original parts are no longer available. The 1960s was a hotbed. 25-inch Uni-Q driver arrays for distortion-free treble and premium crossovers that deliver rich, clean bass. In the other pair, one speaker has no output to the woofer. Kef 107 Replacement Woofers. The larger magnet versions also have larger voice coils & power-handling capability. Kef also has a unique design where the tweeter is placed inside the midrange driver making it hard (impossible?) to replace. Not much bass and none of the LS3/5a bass-hump but a good sound. KEF's unique advanced time correcting DSP crossover ensures perfect time alignment between low and high frequencies so that every note and frequency arrives to the listener at the same time. Design a 2-way high / low pass crossover with a range of choices for type and order. Same day shipping on all in stock items! 888. When I bought my KEF 107 back in 1987 in England I felt great, as the most important part of my system was brought bck to Athens in Greece. " ensuring your components look and perform their best! CALL 781-293-2860 or message us via our "Contact Us" page. Each KEF loudspeaker is created with the same passion for acoustic excellence whatever the budget, so which ever you choose you will have the satisfaction of knowing that you¡¯re experiencing the full richness, emotion and depth that the original artist intended. KEF c30 crossover xover PART DIY PROJECT REPAIR SP2058 0 results. It is very tempting to throw away your old loudspeakers, just because one or two of the units have stopped working or they are sounding decidedly off-colour. TIt's a minor point for many listeners. Having your speakers reconed you can bring your old or damaged speakers back to life. KEF was founded on innovation and new technology. Technical details of KEF products. Despite decades of leading-edge development, the Reference Series stays true to the original goals of that first model 42 years ago: using. But, as I said, tastes have changed and I would still suggest you audition a few models that are available. 1 Channel Speakers for PC or Home Entertainment from KEF at PBTech. Next it's repackaged in a new box with all original accessories included. We have options for most vintage repairs where original parts are no longer available. The crossover is placed somewhere in the upper bass driver box. View & download of more than 857 Kef PDF user manuals, service manuals, operating guides. Check out Bizrate for great deals on popular brands like Dayton Audio, Goldwood and KEF. According to KEF, an electrical time delay. 1 set is needed per pair of KEF 104/2 loudspeakers. Crossover Repair, Replacement, and Upgrades with Premium Audiophile quality components Polk® Vintage Specialty Services for Monitor, RTA, SDA Series. Search by popular brands such as Accuphase, Hegel, Krell, Luxman, Mark Levinson and Sonus faber, and by categories like floorstanding speakers, integrated amplifiers, speaker systems, turntables and more. Find many great new & used options and get the best deals for NOS - Vintage KEF X-Over Crossover SP2136X SP 2136 A KEF Electronics Limited at the best online prices at eBay!. Just for shits and giggles, reverse polarity. I like these kind of "research projects", if you will. I haven't heard much in the way of new speakers but is the modern KEF comparison the 203/2 which is £4k? They're equal last on my upgrade list (along with the TT/arm) so they'll be around a while, esp if I need to pay £4k to improve them, though I know £4k would buy me a lot more S/H. I'm looking for info on crossovers for the Kef 105. The job was tuff very but pay back. Les meilleures offres pour Kef Kit Reference Series Model 104 Filtres Crossovers (sp1041) sont sur eBay Comparez les prix et les spécificités des produits neufs et d'occasion Pleins d'articles en livraison gratuite!. The local speaker repair shop can "recone" (re-surround) the drivers (KEF isn't much help given the age)for about $50 a driver. Our specialty is vintage speaker restoration and the reversal of all age related issues. Reference crossovers are even decoupled from the cabinet to minimise vibration and crosstalk. Be respectful, keep it civil and stay on topic. Kef LS50 $750/speaker. Make sure that the speaker is plugged in and ready to play. Get almost any brand of speaker repaired today in Roseville, MN. i'm a big fan of 1970's KEF speakers. Fits a 1-9/16" inch speaker cone. Your Source for repair and restoration of vintage audio (619)-282-9101 or toll free (800)-544-2100 3401-F Adams Ave San Diego, CA 92116 - <- click for map. $1500/pair. with KEF’s Uni-Q time-correcting DSP crossover designed to sync. Get the best deal for KEF Speaker Crossovers from the largest online selection at eBay. Kef 104-2 allready fixed After received all the parts to repair the woofers and tweeters and the capacitors kit from uk. Specializing in Vintage and Antique Speaker Repair,Recone and Restoration. Eminence produce a wide range of loudspeaker crossovers that can be used in conjuction with any make driver. 2's suffered a damaged bass unit, which was also showing signs of a buzzing in the bass, which happens when the support of the heavy Bextrene cone sags over time, and is a known problem. Speaker Crossovers, Parts, L-Pads, Repair Accessories - We stock high quality 2 Way Crossovers, 3 Way Crossovers, L-Pads, and Protection Fuse Bulbs for your next speaker repair project. KEF Model 101 is a truly outstanding product of modern loudspeaker technology. Overall, these are some very beautiful Reference in-wall speakers from KEF and I think they'd make any high-end installation look awesome. The enclosure features. So if your stereo just isn't up to scratch, why not pick from the incredible range of KEF speaker options on eBay now, and make weak, tinny sound a thing of the past. Digitally controlled crossover points. In the other pair, one speaker has no output to the woofer. At REL we make powered subwoofer speakers for stereo & home theater systems. Hey all, After the positive enthusiasm from my previous thread about a marconi radio, I thought I'd ask here about these. First, do only one. The R Series, as a whole, has trickle down technology from the KEF Blade. Discuss: KEF Q15 - speakers Sign in to comment. Let our speaker repair experts replace and re-foam the ripped, torn, split, broken, worn out, rotted, or deteriorated surround edges on your speakers with brand new surrounds. At a minimum, a crossover ensures that the high-frequency. repair is not cost effective and the sound will not please you. Definitive Technology Subwoofer Repair MN, WI, IA, SD, ND We guarantee our COD parts and labor for 90 days. Dan the sales manager at KEF told me to set up the sub itself with the crossover set full out to 140Hz and to do the crossover at the app. Most speaker boxes have an electronic circuit inside them called a crossover. Check out Bizrate for great deals on popular brands like Dayton Audio, Goldwood and KEF. How Passive Radiators Work. Shop in store or online for speaker repair kits and new speakers. Finally my kef 104-2 are doing great. Kef LS50 $750/speaker. DN8 NO6305 for systems consisting of B139 and T15. Simply Speakers 2,456,900 views. As I got them so cheap - Im happy to tolerate a "close enough" approach for bass repair. We have an excellent shop in town so they know what to do but it's a difficult, laborius repair. This sturdy and simple stand design allows for the central column to be filled with inert filler (sold separately) during assembly. Kef Speaker Replacements. The enclosure features. And no soldering is required- they are just push on connectors. Most speaker boxes have an electronic circuit inside them called a crossover. Features KEF's patented Uni-Q driver array Certified to THX ULTRA2 and THX SELECT2 standards, the formidable Ci200QSb-THX in-wall subwoofer delivers deep bass and theatre thumping output capabilities, matched to the uncanny ability to deliver all the drama and emotional intensity of full theatre sound quality. Tech Hifi is your go to store for sales / service of select vintage turntables, amplifiers, speakers, tape decks of all types! Our process is dedicated to "Restored as Original" or "R. Non-polar electrolytics are known to age or dry out over time and adhesives can lose their grip. We offer speaker repair servicesto customers nationwide. The larger magnet versions also have larger voice coils & power-handling capability. These KEF bookshelf speakers minimize resonance for excellent audio quality, and they're finished with durable white vinyl for a modern look. Figure another $200 for re-applying the dust caps and another $200 or so to repair/upgrade the binding posts with something nice from WBT or Cardas or something. Hi, In my easy listening room, I have a pair of Kef Concerto's driven by a Kenwood Supreme 500. 5kHz 250 watts / 12dB / 8 ohms Designed for coax use with Beta-8CX, 10CX or 12CX woofers and with ASD-1001, APT-50 or PSD2002S-8 compression drivers. Attempted to replace but no longer available. Discuss: KEF Q15 - speakers Sign in to comment. Perfectionism takes time, but the difference is plain to hear. Arguably the ultimate full range bookshelf loudspeaker, Model 201/2 has all the benefits of the latest Reference technology. Treat yourself to a stunning system all you need are speaker wires and a subwoofer to complete. Simply enter the impedance and frequency you desire, and the calculator will display the components you need and where to place them in your circuit. AR3 Speaker Repair. mid units intact and working, passive units intact and working, hf units not working as far as i can tell. KEF engineers computer-model the ideal crossover network before auditioning every component, individually and together, to select those with the lowest distortion. Kef advised that I swap the driver over and test it (with a good amp) which I did, and the driver unit is definatley at fault (this test was to rule out a crossover problem). We have parts for warranty and non-warranty repairs. The KEF LS50 Wireless are a thrilling step into audiophile sound -- in our review, maybe the best performance we've experienced in a bookshelf speaker. I love the way they sound, but they have the original crossovers and I'm feeling that they may have deteriorated somewhat since they were manufactured somewhere between 1969 and 1977. Speaker Repair Experts is an information resource focused on the loud speaker repair and replacement needs of general audio enthusiasts, audiophiles, and professional sound engineers. Kef Q500ver. Electronics > Repair. Speakerwise to my liking there was a thin line betwwen KEF and IMF with the later using KEF's drivers. They have 5. Crackling is more likely caused by problems with the voice coils in the speakers rather than a crossover. If my old mind doesn't fail me, it had a very flat response curve with excellent bass. Our expert team is equipped to professionally provide speaker reconing, refoaming and releading of loudspeakers, subwoofers and woofers, re-diaphragming of tweeters and compression. Based on the three different pairs of KEF Concertos I have owned during the years, I think building a pair using the new Falcon units would be a waste of money. TIt's a minor point for many listeners. Time to recap the 2nd KEF 105. Passive crossovers use capacitors and/or inductors in between the amplifier and the speaker to block/pass different ranges of frequencies (e. Beneath a decorative "hat," there's a special head assembly akin to the head on the old Model R105. One crossover in each pair has an issue. According to KEF, an electrical time delay. We repair KEF speakers using the original manufacturer’s replacement parts when available. Building a crossover for your speaker system is easy. 5kHz 250 watts / 12dB / 8 ohms Designed for coax use with Beta-8CX, 10CX or 12CX woofers and with ASD-1001, APT-50 or PSD2002S-8 compression drivers. Was used in many commercial speakers and in many kits. KEF engineers computer-modelled the ideal crossover networks before exhaustively auditioning every high grade component, individually and together, to select those with the lowest distortion and the smoothest response. 3 ' (white van speaker scam guys) 3311 Avid 100 speaker parts, Celestion-Rolla-Ditton, Criterion-Lafayette. Anyway, every KEF speaker I've ever heard seems to be made for classical music. Chances are we have your part. Audiophile grade amplification and sound processing are combined to bring a true high-fidelity listening experience to active streaming audio.