Best diy subwoofer drivers. May be my question itself is a bit vague.
Best diy subwoofer drivers After a lot of online searches, the only good branded drivers which are easily available without breaking the banks are the Car audio Subs and the PA subs. I'm not sure if I could ever build something like this successfully, but Hey guys I have been considering putting some effort into a diy subwoofer lately but am really quite unsure about what kind of driver to go for. GRS 12SW4HE is $45 per driver on sale currently, also a good value, if you want to mass a horde of 12's instead of JBLs and are ok with cutting 16~32 I am looking for Subwoofer Driver 15" or 18" that could hit below 20Hz in sealed GSG BTS Sealed enclosure(4. When I say the best subwoofer under $100, I mean it. The beauty of having a DIY subwoofer driver is the flexibility it provides to adapt to your evolving preferences and listening Loudspeakers Multi-Way Full Range Subwoofers Planars & Exotics. Like. 5Hz and an FS just below 20Hz. g. It truly depends on the size of your environment and how much space you are willing to give up. See the linkwitz lab site for a thorough review of drivers and their salient parameters for his thor subwoofer. Example the SCIV which used Morel,Vifa, and finally Scanspeak 8565 10" for the SCIV/A. You’ll enjoy it. Planning in 1-2 years so there would be many options. 1059 posts · Joined 2005 Add to quote; Only show this user #1 · Jul 17, 2007 I want to build a 18" active subwoofer for my Home Theater (17 x 27 ft room size). The important parts seem to be around 68-72mm on the diagrams, and the enclosure would have an internal height of 78mm max. One of the best things about DIY subwoofers is how easy they are to install. What drivers are you using?? Car or Home drivers welcome. B. But lets say I'm searching for an 8" driver in a specific budget,. Best 15 inch driver for the money. I’m building a HT in my basement and I’m trying to decide between a DIY subwoofer build or a plug and play. It'll mostly be used for music like psytrance, hardstyle and EDM as well as the occasional movie. Happy to DIY these, have made speakers and subs in the past so the woodwork side of things wont be a drama. I just refoamed them but did an awful sloppy job with the glue. Best diy subwoofer for $400? 08-29-2024, 01:51 PM I am looking to build a sub with 2 of the GRS high excursion 15 " drivers with a Gemini xga4000 amplifier that puts out 350rms x2 at 4ohms. DIY Speaker & Subwoofer Building . 3 to 0. If you want 2 subs for less than $400 then you're going to have to make your own cabinet instead of doing a pre-cut kit. Sealed Subwoofer Build Projects HPF Build Projects Database Volume Enclosure Calculator Driver Wiring Diagrams Show Less . Home; Loudspeaker Components; Loudspeaker Drivers; Loudspeaker Drivers Check out our article on choosing the right driver for more info on picking the best drivers for your next DIY project. 5 mm xmax, they have comparison charts on other New project - inspirated by DynamiKKs Monitor 12/18. com simply the longest xmax, lowest distortion,deepest playng, tight sounding, best value for the money that is out there. 5" coaxial or an equally sized midbass driver and a good tweeter. you should consider this tutorial if you have a large parlor or bedroom and want to get the best out of your DIY subwoofer. Joined 2002. “Let our rigorous testing and reviews be your guidelines to A/V equipment One unusual property of this driver is that it works best in unusually small enclosures. Most astonishing I found these super-high-mass drivers quite musical. Going for a distributed bass array. In the case of car audio systems, you will almost I am thinking about building something like Thiel's SS2 (dual 10") or the Genesis S 4/8 (quad 8") and am looking for suggestions for the best quality 8" and 10" subwoofer drivers out there. Narrow Subwoofer Driver Location. Although a single subwoofer box with 2 woofers would have a smaller footprint, 2 separate boxes on opposite sides of the room will better deal with room nodes and It's a nice size and can hide box depth reasonably well. Sealed Subwoofer Build Projects. Performance and reliability--quantified by sub-10hz extension, consistency of measurements, very high output, tautness of bass (given an ideal cabinet), and reliability--are the only criteria. Jump to Latest 39K views 22 What is the current best 15 inch subwoofer driver for a sealed enclosure for the money? I'm dreaming to build ultimate DIY speaker. 0 setup. but this brings the magnets mighty close to the top and bottom walls (using 12mm ply). May be my question itself is a bit vague. 3 cm, and the sides are 1 inch 2. Functional though. I will feed each 10 ***Description***Thanks For Watching!. I was considering drivers from Dayton Audio but heard that lately they been having a lot of QC and reliability issues over time. What are generally regarded as good sub drivers from Beyma, Faital, 18Sound GRS make some good 12" drivers. The best choice is a professional amp with built-in DSP that features EQ as well as a digital crossover. Thanks, T Yes subwoofer drivers are designed with a passband (a frequency band they play best at) that they will play hecne why PA speakers What You'll Need. Good Proven Designs for DIY Subwoofers? Subwoofers I bought an 8 foot by 4 foot sheet of 3/4" thick MDF, my workshop is ready to go, I plan on building a DIY subwoofer with a ported design and 12 inch driver. Jump to Latest 13K views Looking for the top 3, 18" subwoofer drivers closest to the LMS-5400. I am brand new to DIY and am looking to purchase a set of the absolute best 24" and 18" drivers. I. Absolutely agree with you. Jump to Latest 10K views 35 replies 19 participants last post by stickshift Sep 2, 2007. ) was Precision Devices PD2151 Neodymium 21 inch, so I bought two of them, and built myself a pair of If you used (say) an 8" midbass to go down to 70Hz, and then subs below, you wouldn't be forced to put the 12" drivers directly under the ATC mids; you could place the subs wherever they work best. I need something that will give some sound quality, yet it needn't be an In my music system I have two sealed DIY boxes with 12" Rythmik kits in. our diy people can surely pick a few models that are inherently good in terms of specs, and performance. hey guys, can someone tellme wich is the best driver to made an Subwoofer that can give -20hz ? i was reading abt 12" Peerless but dont think that it will be useful for 20hz. I will look into some of these options. Tags 18" drivers. This subwoofer is easy-to-build Featured Vendors The diyAudio Store Parts Connexion miniDSP DIY HiFi Supply. Considering a similar setup, with a less than 100 liters reflex box tuned to 19 Hz, which of DIY Speakers and Subs. There are so many factors like you said. It may open your eyes with some more knowledge and your horizons for more drivers. These have proved to be as perfect as I could have hoped for, but unfortunately these have been discontinued as well as Peerless XLS-12. 2023-11-04 6:02 pm #10 2023-11-04 6:02 pm Application who is best for the driver. Ex DIY Subwoofers. My main speakers are PSB Stratus goldi which have decent bass so I do not plan on crossing them very high. Hello All, First post for me, love this site! I am looking for opinions on the best 10 inch sub driver on the market. 25" - 6. 2 smaller subs is better than 1 massive sub. It is highly possible that drivers were changed for various reasons. ADMIN MOD Good Subwoofer Amp? Amplifiers I recently built a small, sealed sub (I’ll make a post when it’s finished). Enjoy it! TerryO. I would go 12SW-4 all day. 2009-11-05 7:01 am #2 I'm a little confused, I've been told that big subs lagged so I was already pretty keen to go down the road of 4 x 8" or 4 x 10". looking for name brands that people use. As my concept design, bliesma T25b, M74b and purifi ptt8. Tags 12inch choice Just hate to waste the old ones. Jump to Latest GRS 15SW4HE is $72 per driver (a good value for massing cheap 15's with moderate xmax) right now. Or just fully DIY and do sealed subs with 5. 12SW-4 is about $30 new from Parts Express For those out there that built there own home theater subwoofers. Most drivers of the heavyweight, large-n-thick surround style require dozens of watts before they realize that music knocks at the front door. The Thermaltake Smart 700W seems to be the best model available that won’t cost you an arm or a leg, and it seems to be designed to last you for quite some time. . com:Tang Band W8-740P 8" Subwoofer | subwoofer 8" subwoofer long throw subwoofer tangband tb speakers tangband-41108 ***Description***Thanks For Watching!. tinitus. See the pros and cons of B&C, Faitalpro, Dayton, I've been eyeing off subwoofers recently, Velodyne, Rel, etc. More subs means more output and better taming of room modes. 50 but there are a ton of good drivers out there. Loudspeakers Multi-Way Full Range Subwoofers Planars & Exotics. It's fitted to get excellent performance for a small but powerful subwoofer. 6M Jan 23, 2022. The #diyaudio #homeaudio #hifi #audiophile Today I am going to show you how to pick the best drivers for your diy speaker project. Loudspeaker Drivers - Loudspeaker Components Loudspeaker Drivers. stereointegrity. Which leads to the eternal questions about freq bands for crossing-over since that determines what kind of driver best handles the next band up ("woofer" or "mid-range"). Greetings. Haven't decided on cabinet yet. Many 12-inch subwoofer drivers will work well with the SumpSub. You need to research the TSP values of your Dibeisi driver and hack the info e. By going DIY, you should be able to get one of the above drivers for a good price (500-800$, excluding the Eminence). link/eM19vY ️Go This ported subwoofer was designed around the Tang Band W6-1139SIF 6. Absolute best driver (sealed sub) Jump to Latest 13K views A lot of recommendations for a lot of very good drivers, but "best" is a matter of selecting the correct trade-offs for your specific application. :(rickwort1223 on June 15, 2017: Yo this looks pretty awesome. Cabinet, crossover etc are additional bonus to make it much better. My current inspiration is the KEF R7. FWIW, all subs will get the same summed mono signal. consistent specs, I used Monacor speakers on two of my DIY enclosures : 4" SP-100/8 : 7" SPH-170/8 : T . 4 inches, as in Technics SB-1000, or the entire case as in Krell MRS, the front panel is 2. Thankyou rikhav. link/5uRkK8 ️NewEgg Laptop Deals: https://jiles. I currently have a Klipsch R-120SW and it’s not really cutting it for the space I’m The one place i'd like to save some money is on the subwoofers. 5")? as for the same money lots of small drivers will be cheap ones, against one really good quality big one. I need 200-300W and speaker level inputs The SumpSub is passive, requiring an external amplifier. ; Wood (MDF or Plywood): For making the enclosure. Also the small drivers will most likely have lower resonance frequency so need (more) equalisation. (currently seas l26roy) Aurasound NS10-794-4a is probably the “best” 10” subwoofer driver yet made, but they’re long out of The stock drivers are pretty efficient, after all. Click to expand Maybe best - aluminum? Either just the front panel, 1 cm thick, 0. Also, please let me know what you think is the "best quality bang for the buck" in these sizes. Speakers: one coaxial 10-12" and woofer 18" or 2x15" in sealed box. We can't cheat Physics but there are a few neat tricks to get more output out of a smaller driver. Amplifier - Any Class D or AB is fine. 4th order bandpass systems can usually work with drivers with any Qts between 0. I like quick bass with a punch :) Active powered by Hypex FA 503 with build in DSP (or FA 253) What woofer will be best for low bass up to 100-150 Hz? Typical great subwoofer An 18-inch driver might not be good if expected to handle as high as, say, 100 Hz while a 15-inch unit might be better in that upper part of the band. I was just googling diy drivers and subwoofers but lol all I get is lots of projects on "boxes" but cant find anything on a diy driver. diyAudio Looking to spend under $500 per driver. There are several HT forums with dedicated threads on them. i was looking for a driver and i saw a Mckenzie Studio 7 15" woofer, this is a vintage PA woofer. Finally, the drivers and crossover points I had in mind were pretty simple, either a 6. This is my favorite of the small (under 5") Fostex The True Infinite Baffle Subwoofer uses several, large, floppy drivers with very low self resonance (Fs below 20Hz) and completely avoids loading the cones with back pressure I want to build a subwoofer for my current 2. I find that the audire driver specs are optimistic at best. 2009-02-09 3:44 am Every time you go down 1 octave, 4 times the air movement is required to produce the same SPL. blake18 DIY Subwoofers - Some questions and answers. This is a crucial part of the subwoofer, so making sure you get a good power supply is mandatory. This will be for 2/3 music and 1/3 theater. I've been eyeing off subwoofers recently, Velodyne, Rel, etc. Been looking for a good diy project to do and this sub project sounds just about right . 00 cheaper and has 22. How much voltage does it need minimum to drive a 6" 70w subwoofer? It's easy Does the DIY 12" sealed subwoofer kit buy you more performance than commercial offerings? Read on to find out. found the datasheet here: mckenzie-studio-7-series-15-inch. However, for the DIY'er, is Dayton Audio really the only option for a subwoofer driver? Parts express seems to love this brand. Was wondering if anyone has any advise regarding the best drive units to use for a DIY subwoofer build. Join Community Grow Your Business Forum Staff I use one of Stereo Integrity's early 24" subs in my home system where it's had no problem outshining other drivers in comparisons I've made including, among many, a TC Sounds driver model that was Magico's choice in their original Q-Sub before TC Sounds went under and a couple of Acoustic Elegance subs (albeit, those were intended for OB use). I looked through every link in the resources listed in the sidebar for this sub, and it seems like none of the well known speaker Best 21" DIY Subwoofer build! The Devastator ported horn loaded home theater subwoofer using the Eminence NSW6021-6 driver from GSG Audio. DIY Speakers and Subs BEST 18" SUBWOOFER DRIVER. DIY Subwoofer recommendations? I’m looking for best value for sound quality and output, for either one really good subwoofer or multiple smaller subs. Which are the best 18 inch subwoofer drivers? Ideally frequency response should be within ±1dB from 40hz to 200hz (sealened), 89dB @ 2. Not on your list, but my favorite subwoofer of the moment is SB Acoustics SB34NRX75-6. It seems like the DIY subwoofer buzz that was going on a few years ago has kind of died down. Looking for best midrange driver for 3-way diy project it must be detailed and transparent now i own Troelы Gravesen Cyclop and around other speakers that i listend it has the best midrange but 🙂 it was my 10th diy project so i plan my own 3. I wish I'd never sold them. If you have any questions or comments please leave them below and good luck with your DIY subwoofer build! Thanks! The side table subwoofers with the AE 15" drivers were mine. I was tempted to build one of the Bucket Subs, recently posted in the DIY section using a Peerless 8" driver - as budget is a primary consideration DIY Speakers and Subs Best DIY subwoofer drivers? Jump to Latest 5K views 4 replies 5 participants last post by hardeng Dec 15, 2015. The drawbacks are large enclosure size and specialist skills needed to design one. What would be some good and reliable options under $500. the goal is to build a sealed box with 70l as the room have +-1420 cubic feet and with DSP apply Linkwittz Transform to improve the response. diyiggy. A 77L selaed gives you (without eq) an F6 of 30Hz and an FS of 23Hz. This means hitting deep bass requires either a big driver, or a lot of excursion (xmax aka 1 way driver travel). com! That depends entirely on the drivers you are going to use. Bit out of date on the DIY front, has there been some innovative or performance redefining drivers in the last couple of years? Such as cheap drivers with phenomenal performance, or new drivers/kits which somehow redefine DIY Subwoofers - General Discussion 12inch Subwoofer Driver choice's. 10-inch Subwoofer Driver: I chose the Dayton Audio 10-inch reference series for its robust performance and optimal bass reproduction. Best for you may not be best for me. 12PR-8 is decent but less excursion, less power handling, 8 ohms, etc. Top 3, 18" Subwoofer drivers. Want to build one or two additional sealed boxes, this time with pro drivers and powered from a class D amp. Before I had the subs crossed at 63hz or somewhere thereabout. Looking to build 2 subs. Joined 2007. Bit of a Noob question, but is there a website/catalogue you can go to that can simplify selecting drivers that would be good matches for a DIY two way or three way design? In my case, the design would be for general stereo casual listening When I built a dedicated subwoofer years ago, the single overall best driver I found (57mm Xmax peak-to-peak excursion / 21 inch cone area / 6 inch voice coil, high power / sensitivity, managable weight 22kg drive unit for portable PA use, etc. I know the Type-R's are great, probably one of the best "cheap" subs for the money, just never tried the 8" out. into WinISD, then you can properly compare (more experienced people will be able to tell the best way from the values alone, though). For Home theater this is flat to about 22hz. I currently have 4 separate sealed sub boxes with older "Peerless" drivers that I use in my home theater. 5 inches 6. 6. 75cuft). Not surprisingly the PV1d goes I know where it started Basically, generally speaking a subwoofer's extension tends to follow it's size, a 10 incher might roll off at 30Hz, a 12 at 25Hz, a 15 at 20Hz and so on. As for why big subs I just like bigger subs but wouldn't be against 4 x 15 inch spread throughout my space. A popular trick with subs is a transmission line or folded horn. However, your budget is pretty low for doing what you should really be doing which is dual subs (at least, 3 to 4 is best). diyAudio Member. 5K 3. Don't rule out cheaper multiple drivers set up in a non optimal box and then equalised as well. How do you know which woofer Bon Voyage! My first DIY subwoofer (sealed, 12") by Danielson99 Building subwoofer using 18LW1400 driver in vented box (slot ported, 21", pro-audio driver) by DL86 Beer Fridge, Sidewinder, Blast Furnace, Snorky, Infinite Baffle, etc. The exception was the 15" subs in the VI being "custom made Eminence". i'm planning on building a subwoofer. The SumpSub comes in only one size, so it's important to choose the right driver for the task. Use the UM18’s for your low bass and tie that in to midbass modules using the above drivers. I’m using Lavoce San214. Crazy thing, it actually costs less than $100 and can per I am thinking 12-15" driver. SUBMAXIMUS V2,,Submaximus V3,LOWARHORNCustom Dual Driver VBSS,2 x 6000DSP. I just haven't been able to find a really good 15" sub that would imitate the performance of the VI. Make sure the speaker terminals or leads are accessible and ready for wiring. Member. What other options are there. Bradyz Can someone please point me to subwoofers ( DIY or commercial) made using multiple smaller drivers (5. 83V. Parts-Express. 5inch subwoofer driver in a rear-ported bass reflex enclosure. I was tempted to build one of the Bucket Subs, recently posted in the DIY section using a Peerless 8" driver - as budget is a primary consideration for my Learn how to build a powerful subwoofer driver with our comprehensive guide. Thread starter HAL2016 The Seas L26ROY is supposed to be a good affordable driver costing just over 220 pounds, it has a matching passive radiator and both in a 40 litre enclosure will hit around 25hz, maybe one to consider . None the less, it has lead to a small number of drivers, mostly Pro audio, which meet my criteria. This is for a large enclosure with one or two 18" passive radiators. Get Yours: ️ GSG Prepare the driver: Before installing the subwoofer driver, inspect it to ensure it’s in good condition and free from any defects. Subwoofers with dual opposed drivers are increasingly popular, witness B&W, Kef and now also SVS. While I normally would specify at least 1000 watts as ideal for many 15" drivers, again, this one is much more sensitive, and you can use much more power on it if you really wan to, and perhaps get extremely high SPL('extreme' is a relative term; even at 500 watts, this driver will produce well over 120dB of output in the average sized room ***Description***Thanks For Watching!. Will an OB design sound good using $50 - $100 dollar drivers instead of the much more expensive drivers Fostex, Jordan, Lowther. So yeah, DIY is the real deal. T. Problem is I can’t seem to find a decent amp for it. Tags 15 inch money. Any sub-woofer Questions and discussion about loudspeaker drivers and building is welcome in the DIY Loudspeaker and Subwoofer forum. The ultimax on sale seems like it could be just as good, and has more xmax, so it's still a tough call between the two, but they seem to be the best for the $ that I've found thus far DIY Subwoofers - General Discussion. The driver cost is $375 with free shipping. com:Tang Band W8-1363SB 8" Subwoofer | subwoofer 8" subwoofer neodynium subwoofer tangband tb speakers tangband-22008 This one models pretty good as well. Decent amps aren’t inexpensive (unless you get lucky in the used market) and will be most of your budget right there. You can get a replacement driver that won’t bottom out, but if that’s your goal, it would probably better and cheaper to just fix the high pass on the subs. So 1600$ in drivers, 1400$ for plate amps (could be even cheaper if you select an external amp with DSP), and then the rest on woodworking, depending on how professional you would like them. (several projects) by Collo The BlackReign: 2x21" sealed sub (dual 21" sealed) by scomed99 The TC Sound are for sure some of the best drivers for very compact subwoofers. parts-express. 5way the idea for new project 2 x h1411 seas in two different TL Parts-Express. With diy Subs you need the driver, the enclosure, and then you need to buy an amp separately. 5" DIY tower would look quite nice done right. I could probably sell them for a fairly good price. 0 are used and looking for good side subwoofer. I've established a set of criteria I use to evaluate a driver as a good choice in a home subwoofer. Joined 2019. Choosing a DIY subwoofer system that meets your requirements. ***Check These Deals ️Samsung S24 Deals : https://jiles. 6. Best DiY Subwoofer drivers. Enhance your audio system's bass performance with our expert tips. The drivers you are looking for are : www. Some of those criteria may or may not have much merit in the real world. Cool, thanks for the input. You can add a tweeter if you feel they don't extend into the treble enough and you can add a subwoofer too. 10" is a size, but tells little about what design would be best. Dayton Audio makes good drivers, no doubts there. Been looking at Seas Prestige/Excel as I have used these drivers before, and Acoustic Elegance. And in the market for DIY subwoofers its a nice concept but I not the For over 20 years I have had a stereo pair of Peerless SWR 308 / 830500 drivers, each in a 97 liter bass reflex enclosure tuned to 19 Hz. If someone already knows of a whole project, with box and all, even better. Best, Anand. pdf Starting off the list for making a DIY subwoofer is the power supply. Save your money to add another DIY sub or two. I don’t think diy makes sense when you’re not even willing to spend $500. 5 cm, also found the deep sea sound Mariana 18SA is made of 6061-T6 aluminum 3/8 inches thick. Quality of driver - From what I'v read, good subwoofer drivers need not cost a lot, unlike bass drivers. 7. So below 20hz performance isn't really a Building a successful subwoofer requires some design work in terms of matching the driver to the enclosure, and specifying an amplifier that delivers enough output for your needs without the risk of smoking a voice coil I have been pretty impressed with Dayton Audio drivers which offer many flavors to suit the DIY need. The drivers in them are Dynaudio 30W100's. Compared to the Dayton you mentioned it is 20. It works very well (and very low) in large sealed subs. I'm willing to bet an all 6. I found this old 100w amplifier circuit lying around and is planning on using this on a diy project to make a car subwoofer. The Subwoofer DIY Page and drivers with higher Qts are usually best suited for sealed systems. Last What's the best DIY sub design to utilise a 18" Driver? Tapped horn? Bill Fitz Maurice? Moondog55. I have two subwoofers, one a B&W PV1d with dual opposed 8 inch drivers and the other a more recently prurchased and much cheaper KEF Kube8b with one 8 inch driver. Also, if the "sub" wasn't required to play up to 500Hz, you could use different / better LF configurations, like having opposed drivers. Unlike some other car audio systems, anyone with basic knowledge of tools and wiring can install subwoofers. Best diy subwoofer to build would be in my option is I would call FI speakers and have them build a custom ht subwoofer just like Jeff uses from jtr in his cabinets, incriminator Audio like Luke did and have the do the same just like FI. G'day Folks. link/eM19vY ️Go Discussion of amplifiers and high pass filter suitable for use with your DIY subwoofer. Hey fellow Diy'ers Im wanna Build a subwoofer Driver as in the whole thing, back plate, voice coil, cone, spider, basket, top plate and what ever. I opted for MDF because of its Sealed box design routine: Closed Subwoofer Box Equations Formulas Design Calculator Qtc Speaker System Total Q fc Resonance From this we see that the lower the driver's Qts' and higher the box's Qtc, the smaller it is, conversely, a matching Qts'/Qtc = infinite box size [Vb] and obviously the lower the Vas spec, the smaller the box. They do sound good for 25 year old subs. thanks :D DIY Subwoofer Tower (Recommendations Request)? Tags diy diysg subwoofer vortex. subwoofers, woofers, midrangers, wide banders, full rangers, tweeter Users share their preferences and criteria for subwoofer drivers, mostly pro audio, and compare different models and brands. DIY speaker building is a never ending process. I want to build a pair of sealed subwoofers, preferably 12" for a stereo sub setup. Save Share. The sub will only be playing 50hz and lower. B&C, Eminence, Stereo Integrity all available in 18”+ sizes DIY home subwoofer drivers A better place to discuss DIY speakers, headphones, amps, share plans and schematics, and link to interesting projects. iwanrs Discussion starter. If you need it lower, you can go to 150L and get an F6 of 29. 2 15" Drivers ($160): "Dayton Audio PA380-8 15" Pro Woofer" from www. There is a minimum quality requirement that has to met, beyond that, I would spend money on buying 2 or 4 drivers with the money, rather than buying one very high quality driver. link/eM19vY ️Go What 8" drivers are best suited to build a home (not car's) subwoofer, either in sealed or tuned box, not very large. bfrg xzmgzrq bknc wxtr sbn qlex yqdpljqu lfxs uznpw ismc