Ak4497 vs ak4499 But you must not forget that the real performance depends on the implementation of the device developers. Go. The AK4497 accepts up to 768 kHz PCM data and 22. Hopefully the 4499 won't be vastly more expensive. When used in conjunction with the AK4191 the AK4499EX is the ideal analog conversion solution for playback of ultra-high-resolution sound sources: up to 1536kHz sample rate, 64-bit PCM I have done enough reading that it appears the two latest chips are the Sabre or ESS ES9038PRO and the AK4499. r/GCamPort. RME ended up using both chip versions with their ADI-2 DAC model. If mass production starts in Q2 as indicated I would expect the first devices using them to ship somewhere between August and October. The Fein used the AK4493 which was the number two AKM chip at $13 vs $78 for the top AK4497 used akm4497 vs. Joined Mar 15, 2020 Messages 327 Likes 304 Location Europe/Germany. For those of you with experience with either the 4493 or 4497, do you think I could expect similar results in DSD playback sound quality? One of the reasons I ask is because the The Matrix DAC does seem to be very good, but who knows, perhaps a well-engineered AK4499 DAC can be made even better? I guess only time will tell. Joined Feb 28, 2018 Messages 1,998 Likes 2,622 Location Iasi, RO. Buy GUSTARD DAC-A22 DAC Dual AK4499 XMOS Solution Native Balanced Decoder. So far, AKM has the best sounding DAC ive heard of the flagships. Basically, right now, the Sabaj D5 and the Topping D90 are competing, With the rave reviews of the AKM 4499EX, I decided to try the Geshelli Labs J2, 4499EX version. I saw a great review on Audiocircle of the Sabaj D5 which is now a year old. The audiophile will say, "Wait you can't hear the difference! Clearly your system isen't resolving enough!" A casa Audiofilando è arrivato un pezzo da novanta nel campo degli amplificatori integrati. Block Diagram and Functions 3. DR and THD took a hit at DSD512 though (131 / -106 dB instead of 134 / -124 dB). Thread starter Brad57; Start date Oct 30, 2017; Tags akm verita 4490 amp dac schiit Oct 30, 2017 at 1:23 PM Thread Starter Post #1 of 9 B. More posts you may like r/GCamPort. 00 USD) A digital isolation circuit is added between the MCU microcontroller and the motherboard DAC to eliminate the interference from the MCU to the high-precision DACs. me Zishan dsds (dual ak4497&single 4499) มาเหลาให้ฟัง Zishan เป็นdap budget(หรอ) ที่ฮิตมากกับผู้เล่นระดับ mid tier ที่ต้องการเสียงระดับhi end และมีskill ช่างด้วยระดับนึง เพราะนิยมแกะโมกันมาก AK4497: 1Mb / 98P: Quality Oriented 32-Bit 2ch DAC AK4492: 2Mb / 101P: Quality Oriented 32-Bit 2ch DAC AK4497EQ: 1Mb / 98P: Quality Oriented 32-Bit 2ch DAC AK4495EQ: 1Mb / 63P: Quality-oriented Premium 32-Bit 2ch DAC AK4495SEQ: 1Mb / 58P: Quality-oriented Premium 32-Bit 2ch DAC AK4495: 1Mb / 63P: The AK4499 has 128 pins and the AK4499EX has 64 pins, which is half the number of pins and at the same time, the boundary between the digital and analog domains is clearly defined, making it easier to wire the board and optimize the signal flow, contributing to the pursuit of an even higher sound quality and ideal sound. The design uses the latest high-quality sound technology and a completely separate digital/analog solution to achieve a "sound as if you were there" experience. zzz2496 Member. >Support Hi-res signal decoding with up to 32-Bit/768kHz and DSD512 natively. Like AK4499 was switched resistor, but the 4498 was based on 4497 which was the conventional V-out switched cap architecture. only one USB input. 2019. For the price, I believe the Sabaj unit is a heck of a deal and the customer service is great. I had jumped around Schiit DAC’s and Headphone amps for 2 years before finally listening with my ears and only looking at and referencing specs as a rudimentary baseline for comparison. Among their huge lineup of products, the “VMV” series of products are considered TOTL with ultimate performance and craftsmanship. One single AK449 chip has twice the number or channels and pins of the prior Recommendation of a AK4499EX-Based DAC? I am considering getting a DAC that uses the AK4191EQ/AK4499EX chip set. Forum Donor. A complete kit that can be built without extensive audio electronics knowledge. AK4497 and AK4499 are highly featured sets in mid to high-end DAC/AMPs and DAPs while the AK4493 series is Yes, you would have to volume match. Well there is a least a bit more of a logical explanation here. Here you can discuss device compatibility, settings etc. It IS a hassle, I agree, but interesting. It’s been two and a half years since I posted about my Dual Mono AK4490 DAC. AK4497 is ~$400 range and up. When i compared it with Rega Isis valve cd player, i immediately heard that something is not ok, therefore i put it on a surgery table. It looked more like a limited performance version of the AK4497 than an upgraded version of the TOPPING D90 AK4499 AK4118 Voll ausgeglichener DAC Bluetooth 5. It corresponds to a I have an AK4497 based dac and I liked it quite a bit but I expect I would like the AK4499 a bit more. I have one connected directly to the amplifier. The AK4493 chip (seemed) pretty enticing. 0. 8MHz sample rate DSD. a lot of diferent trade offs between the sota brand new chips and the oldest PCM ! One must choose his poison 🙁 [AK4499] 019001308-E-00 2019/02 - 1 - 1. Morla Senior Member. The D90 sounded matt and The analog characteristics also exceed those of the integrated D/A predecessor AK4499, allowing users to experience an unprecedented level of life-like sound. The AK4497 DAC dual, with its AK4499 DAC at its heart, stands as a testament to AKM's relentless pursuit of audio perfection. AKM will exhibit at the International Parts+Supply (IPS) section of the show in Munich, Germany, hifidiy论坛»论坛 › 论坛技术讨论专区 › 音响diy论坛 › 最强hifi解码芯片9038pro ak4499对比录音 1 2 3 / 3 页 下一页 返回列表 They start at AK4493 at the basic level, AK4495 and AK4497 as mid and mid-high level chips, and AK4499 as their flagship model. 5792Mhz or 24. There’s also an entry-level model that is currently in use for budget models known as the AK4377. When used in conjunction with the AK4191 the AK4499EX is the ideal analog conversion solution for playback of ultra-high-resolution sound sources: up to 1536kHz sample rate, 64-bit PCM With the AK4493 chip out, Dimdim posts about making an updated dual mono DAC board. eg auto DSD detection which the AK4497 does not have. Nov 12, 2020 #21 Nejiro said: I like putting together these comparisons to provide a side-by-side view of two similar products. No OPAMP design, tubes ouput only. Lets get to the nitty-gritty. 1. newer DACs are on the horizon (AK4499) already with some reports that they are offering even better SQ than the former Cost is by far the strongest disadvantage for R2R DACs. marvda1 Posts: 4,903. Both the Lumin S1 (my previous reference) and the Ayre QB-9 are ESS 9018 DAC chip based. My audio 'blogalike' | Audio DAC and ADC History | Helpful Audio-Related Calculators. When used in conjunction with the AK4191 the AK4499EX is the One important thing to consider is the streaming playback chain aka digital front-end in the whole result. . With a more refined audio output and a richer sound quality, the AK4499 dual DAC [AK4499] C016-01 2020/09 - 3 - 4. They are generally a bit smoother. AVDD = 4. for example could an option be used on the AK4499 chip that completely bypasses the You can absolutely tell the difference with AKM chip based DACs. AKM 4493S. I have an A18 also going straight into a power amp (with dual gain POTS) and I compared it to an SMSL M200 last year (AK4497 V-out vs AK4499 I-out). Thread starter mike7877; Start date Oct 31, 2023; M. Crystek femto, Rubidium ATOM and OCXO clocks are recommended. The K9 Pro is equipped with the legendary AKM AK4499 DAC, renowned in the audiophile world for its excellent performance and decoding capabilities. In 2019, AKM introduced the VERITA AK4499, current-output DAC. L has multiple successful products in the market such as SH9, SU9, SP200, and many more. M. 0-PB 2018/12 - 1 - 1. This change is also allowed power hungry ES9038Pro to run with 50-100Mhz external clock to support DSD256 & Asahi Kasei Microdevices Corporation (AKM) has redesigned the AK4490 D/A converter (DAC) and its higher-end counterpart, AK4493, as new products under the VELVET SOUND brand. Joined Aug 26, 2020 Messages 24 Likes 12 Location Indonesia. The brands I have looked at are Sabaj d5($469) and a Topping D90($699). Topping D90 is pretty good, with great bass and imaging, but at vocal frequencies and above there is something about the it's sound that is a little 'off. L has a wide range of high-fidelity audio gears including DAC’s and Amplifiers. This is my second and a shootout between two different implementations of the AK4499 chip, one by Topping and one by Gustard. Time to throw it in the ring with the SMSL M400 and TOPPING D70s DAC to see how it stacks up! TOPPING Помощь с стриминговыми и онлайн сервисами:ТГ канал:https://t. ' It doesn't sound natural at those frequencies, although the problem is small AKM AK4493 vs. mike7877 Addicted to Fun and Learning. Z. ess9038pro. 2MHz (256) - DAC: AK4497EQ*2 - LPF: OP275*2 (Soldered) - AMP: LM4562 (Rollable) - Output M200 --- [https://shenzhenaudio. AKM Premium DAC Comparison Table (Y: Available, N/A: Not available) AK4499 AK4497 AK4493 AK4462 AK4468 AKM says it is based upon its high-end predecessor, the AK4499 current output DAC chip. Even tho the AK4493 is down a notch compared to the AK4497 is it a much newer chip & has some technical improvements. Search for: Are the chips like AK4497 or AK4499 better than AK4493, which would mean, that SMSL M300 MKII DAC (265 EUR) should be better in theory? So WHY is the RME DAC so expensive. S. It's too bad there is no new AK4499EQ replacement in a single chip. Asahi Kasei Microdevices Corporation (AKM) has redesigned the AK4490 D/A converter (DAC) and its higher-end counterpart, AK4493, as new products under the VELVET SOUND brand. It would give people a slightly cheaper option but with similar features. I’ve fitted it in accordance with the AK4497 DAC dual-chip decoder board pinouts as shown below: as can be seen in this photo: Still no output from the AK4497 board. B. 5792Mhz to 100Mhz clock. https://bit. The sound difference is noticeable in normal use but I only noticed a preference for one when I quickly switched device once. bogi Active Member. There are many reviews of audio hardware and expert members to Put the best chip in a horseshit DAC circuit and it might as well be a $2. Jump to Latest D. Wow another new product from Gustard ! They are on fire ! I recently bought the R26 which is a very nice upgrade over my Singxer SDA-6 Pro (AK4499). I also have a Schiit Wyrd cleaning up the USB signal from my The 32-bit AK4499 is remarkable in that it highly outperforms the previous flagship AK4497 as well as every other DAC chip on the market. The E70 has the nice double RCA/XLR balanced connectors, 5v output, and the form factor let's you put many amps on top of it like the E70 or A30 Pro fits well. General Description The AK4499 is a 32-bit 4ch Switched Resistor DAC which adopts newly developed technology, achieving the industry’s leading level low distortion and low noise characteristics. 3V 22. Are they complete DAC (aside the chassis)? 2. Table 1. Thread starter diyinhk; Start date 2016-10-30 7:49 am; Status Not open for further replies. The analog characteristics also exceed those of the integrated D/A predecessor AK4499, allowing users to experience an unprecedented level of life-like sound. I plan on getting the mkIII when it comes out, the mkIII can use akm4490,akm4497, or ess9038pro, gary(the designer) prefers the ess9038pro and says it sounds the best, i'm thinking that if i love the sound of the 4490 then i should New Gustard Twin Shootout: A18 (AK4499) vs X16 (ES9068AS) Thread starter Martin; Start date Nov 10, 2020; Prev. We should I am looking for an AK4497 or AK4499 dac I would be happy with either of the following: 1. Free shipping on HiFiGo, you can enjoy a year warranty and best after-sales service. King of Mods. 3V filament (6Z5P,6X5) and 5V filament (5AR4, GZ34, 5U4G, 274B, 5R4 The AK4499EXEQ is a Stereo Premium DAC based on the Switched Resistor DAC method employing VELVETSOUND™ technology. RME AKM AK4499 (+$200. This 2 chip approach is neat to offer but a lot of extra space and cost for likely no real audible benefit. I have the musical paradise mp-d2 mkI with akm4490 and love the sound, here's my question. Thread starter Martin; Start date Sep 15, 2020; Prev. No one is able to tell these DACs (or many others) apart in blind tests. 576Mhz clock,ES9038PRO can accpet 3. Would also be curious to read comparisons of the A26 against X26 and R26 ! I would also like to see Gustard coming out with a premium headphone amp that would match the 26 series dacs ! I finally returned to this project after receiving a new Amanero USB to I2S board. There are several DACs using this AKM chip combo that are nearly in the same price range: These statements are very similar to those made when the AK4499 was introduced versus the AK4497. akm4497 vs. AES and USB. Ak4452 vs es9038q2m vs ak4452 forum, 本人现在的是 . my expiriance of comparing AKM to ESS has been in the low to mid end, my old Echo Audiofire 2, the Fiio M3K vs the M3Pro the M3k having physical controls and a AKM chip while the pro having touch controls and a ESS chip, i liked the M3 Pro much better, made me feel like the AKM was cold and clinical, putting accuracy over enjoyment, while the ES9038PRO VS AK4497 FIR Filter. Conclusion I've came to it really makes no difference provided you're using a decent DAC. Joined Aug 5, 2021 Messages 843 Likes 190. >Dedicated Independent Powersupply. It also converts up to 44. Sep 14, 2020 #21 Speakers: ADAM AUDIO S3X-H The AK4497 has six types of 32-bit digital filters, for simple and flexible sound tuning in a wide range of applications. If you have money to blow go for it. S. I have an AK4497 based dac and I liked it quite a bit but I expect I would like the AK4499 a bit more. Comparison Table of D/A Converters Table 1 shows a comparison table of Premium DACs featuring AKM’s LSI manufacturing process for premium audio. 0 DSD512 Hi-R which some of my friends have in use and are very satisfied with it - is no longer available with the AK4499 from AKM, it would be interesting to know which other models with this chips from AKM are available. Thread starter Martin; Start date Feb 12, 2020; Prev. 25 V • Digital Input Level: CMOS • Package: 64-pin HTQFP • Temperature: -40 to 85 C Premium Switched Resister Stereo DAC = Preliminary = AK4499EX [AK4499EX] E-00 [AK4499EX] - 2 - 3. 25 V, VDDL/R = 4. ZiShan DSDs Dual AK4497EQ, featuring; - PCM playback: up to 32bit/384kHz - DSD playback: native DSD up to 11. 1; 2; First Prev 2 of 2 Go to page. Following the recent announcement Although not AK4499, check the RME ADI-2 DAC FS v2. This is a a dedicated, unofficial subreddit for Google camera ports - GCam. 2016-10-30 7:49 am #1 2016-10-30 7:49 am #1 I just do a quick test on the default FIR filter using the latest ES9028PRO and AK4497, i. My second was a shootout between AK4497EQ D/A Converters. 11. trl Major Contributor. Most people saw that the specs of the AK4493 chip were marginally better and most assumed there was an imperceptible difference at most, considering the chip was a newer one from the same manufacturer. me/subyoplataВатсап:89227751278Отзывы:https://t. Help and Getting Started. Does SMSL SU-9 (450 EUR) actually sound better than SMSL M300 since it has an ES9038PRO chip which is one of most expensive on its own? Where would it put MX-DAC It appears the old (pre-fire) AK4499 kept on just scaling up to DSD512, filter and everything. It can switch between 6. In direct competition, the QYT KT 8900D Dual DAC, while offering a strong performance, is outmatched by the AK4499's superior capabilities. The latest DACs (9038,ak4497/93) DACs offer really exceptional sound quality and detail for a very affordable price. The most noticeable difference, though, is how quiet the Pioneer is. AK4490/AK4493 is the typical choice in ~$200 range. It is more suitable for portable DACs. Together with the AK4191, the AK4499EX gives ultra high-resolution digital-to-analogue conversion, with a PCM sample rate of up 1,536kHz at up to 64-bit resolution. Joined Sep 16, 2020 Messages 238 Likes 172 Location AK4499 DAC. I have never trail the Ayre DB-9 on my system yet. On paper, this DAC chip boasts a THD+N of -124dB, which is lower and better than AKM's previous flagship, the AK4497 at -116dB. Reply reply Top 1% Rank by size . Brad57 New Head-Fier. MUSICAL PARADISE MP-D2 MK3 DELUXE ES9038PRO AK4497 AK4490 TUBE DAC,MUSICAL PARADISE,Brands They are also separated between left and right channels to increase current handling capability and decrease The D90SE is here, and as soon as the confetti clears we can get on with the fun part: ruthless comparison. PS I've had the E70 Velvet and Octo and you literally can't tell a difference between them and the D10b I use every day. Or maybe the 97 will lower in price and the 99 take it's spot. Could you let me know how much your AK4499 DAC cost in 2 channels stereo flavor? What are the base options and add-ons? I see the following on your website that would interest me. While I still consider Astell&Kern to be full of surprises, especially when it comes to collabs, their DAP releases are more predictable in how their flagships often coincide with being one of the first in the implementation of the latest AKM DACs, just like with SP1000 and AK4497, SP2000 and AK4499, and SP3000 and AK4499EX/4191EQ. ess9038pro I have the musical paradise mp-d2 mkI with akm4490 and love the sound, here's my question. In the desktop audio scene, S. Joined 2012. Volume matched, blindfolded (with my wife, not kinky), 12x4 tracks in random order, swapping XLR cables all the time. 1. AK4497 : AK4497 : AK4499 : ES9038PRO : Input Sampling Rate(USB) PCM:32bit/768kHz DSD:DSD512 : PCM:32bit/768kHz DSD:DSD512 : PCM:32bit/768kHz DSD:DSD512 : For example it only uses half of the Buy the Geshelli J2 DAC here: https://bit. 1; 2; 3; Next. 99 chip. Joined Oct 28, 2017 WANTED: Happy members who like to discuss audio and other topics related to our interest. Oct 31, 2023 #1 Sometimes AKM likes to be annoying for no reason and decides to make it hard to get one of their datasheets. e. I like putting together these comparisons to provide a side-by-side view of two similar products. AK4499EQ D/A Converters. Basically, right now, the Sabaj D5 and the Topping D90 are competing, but the Topping cost about 75% more. But since then quite some water has passed under the bridge. I’d be curious to hear people’s experiences who’ve used both and noticed So far I have not seen a commercial AK4499 based dac that gets shows off what the dac chip can do at its best. 75 to 5. This was already posted yesterday, btw. In terms of actual performance, the DAC using the AK4497 outperforms the AK4499 based DAC in every aspect. Block Diagram ' 6 Modulator VCOMR VSSL VDDL VSSR VDDR EXTCLP EXTCLN MUSICAL PARADISE MP-D2 MK3 DELUXE ES9038PRO AK4497 AK4490 TUBE DAC,MUSICAL PARADISE,Brands They are also separated between left and right channels to increase current handling capability and decrease mutual interference. so, they now sports 10 digital inputs on the QX-5, AK4490 and AK4497 modules can accept 3. 4 MHz direct stream digital (DSD) data, making it The analog characteristics also exceed those of the integrated D/A predecessor AK4499, allowing users to experience an unprecedented level of life-like sound. The AK4499 is still the flagship DAC chip But now they're talking about splitting the functionality of a ΔΣ DAC between two chips: the AK4191 which contains the digital reconstruction filters and the ΔΣ modulator, and the AK4498, which contains the analog filter. That was the clearest difference How does akm verita 4490 compare against cirrus logic cs4398 and other similar dacs? Home. The display shows: I used my Oscilloscope to look at the outputs of the USB card while playing The D70 uses AK4497 which also has a bypass mode but the D70 does not allow you to enable it, My guess is it's because someone may enable it without fully understanding it and get a DSD output playing at max volume, potentially damaging their ears and/or gear You can see it in this diagram for AK4499: The D70 uses AK4497 which also has a bypass mode but the D70 does not allow you to enable it, My guess is it's because someone may enable it without fully understanding it and get a DSD output playing at max volume, The AK4497 is a voltage type DAC and not a current type DAC like the AK4499 and therefore does not require additional I/V conversion. First Prev 2 of 3 Go to page. com/products/smsl-m200-dac-ak4497eq-bluetooth-5-0-32bit-768khz-dsd512-decoder-with-remote-control]Features:AK4497EQ High-end The DAC chips in question both well and truly exceed the capabilities of our hearing, and differences between them are even pretty damn hard to measure despite our measuring gear being orders of magnitude better than even the best person's hearing. ly/32X1keE. My first was a shootout between DAC chips, AK4499 vs ES9038Pro, both in Gustard units. USB input supports up Search titles only By: Search Advanced search Midrange and treble sound about the same. I don't mean quiet as in a difference in sound level, but a sense of quiet between notes, if that makes any sense. >8-Channel Hybrid Discrete I/V Conversion Circuit. All of AKs DACs are very reasonably priced except for the AK4497 which sees a significant price jump vs all of their others. Forums. Just because it measures on paper does not mean it will sound different to your ears. It corresponds to a Asahi Kasei Microdevices Corporation (AKM) has totally redesigned the AK4490 D/A converter (DAC) and its higher-end counterpart, AK4493, as new products under the Velvet Sound brand. AKD49S Stereo DAC 3. And AK4499 module was not so often as ak4490 or ak4497. With the right design, we can optimize its full potential. Member. AKD49M Dual Mono DAC Intro. diyinhk. Introductions, Help and Recommendations. Probably nobody was heard that clipping because it is not present with -9db lower signal, And on tube output it is smooth. Datasheet of this third generation DAC-IC is here: Good news for manufacturers with unpopulated boards sitting on their shelves no doubt, these were some of AKM's most popular DACs pre-fire. ly/J2SAKMA review of the Geshelli Labs J2 DAC range including the regular J2 DAC with ESS and AKM chips, the upgrad AKM AK4499EQ: I decided to try the Fiio M15, and went with it vs the SP2000 because it was a third of the price for the exact same AKM4499EQ chips. The AK4499 uses the same auto DSD detection. August 2018 in Going Digital. Slightly less switching noise, but at least it is not obvious from the measurement results. I found the biggest ironic contrast with chipsets was between Geshelli Labs J2 and JNOG. With the newly developed switched resistor analog core, the AK4499 has updated characteristics with S/N 140dB and THD+N -124dB. Desire to learn and share knowledge of science required. info link: https://geshelli. I guess it is what reviewers describe as a "black background". Search. [AK4499] Rev. Next Last. It supports high-resolution audio streams up to PCM 32bit 384kHz and DSD256 and contributes greatly to the richness and precision of the K9 Pro's sound. Jan 5, 2021 #21 RichB said: Life is good . The Topping D90 is newer and I hear the build quality of the Topping as well as ZiShan DSDs Upgraded model of ZiShan DSD audio player, available in 2 different versions: 1. L has FIRST AK4499 DAC TO MARKET The Topping D90 was the first commercial DAC using AKM's latest and greatest DAC chip, the AK4499. AK4499 vs ES9038Pro / Gustard DAC-X26 vs Gustard DAC-A22. Sto parlando dell'Accustic Arts Power IE ne approfittiamo per due The new flagship DAC Velvet Sound | Veritas AK4499EX and the previously announced premium DAC AK4493S are two of the latest products developed by Asahi Kasei Microdevices Corporation (AKM) to be unveiled for the first time at the High End Show 2022. 2016. not like chip matters so much. My DAC has AK4495SEQ, and AK4497 is better. Employs tube rectifier. It's fully tricked out with Sparkos opamps and USB input. 世界で初めてak4499チップを搭載したオーディオ機です。前作sp1000はak4497を搭載していました。単純にチップの比較は出来ませんがsp2000の方がやや派手になった印象です。歴代の滑らかなベルベットサウンドを継承しつつ更に躍動感や情熱感が加わった音です。 The latest AKM dac is the AK4499 Topping D90, Gustard A22 and others will use it in the future. com/time stamps0:10 m0nks slideshow2:50 opening9:18 who is geshelli?13:54 j2s in a nutshell15:00 price breakdown21:26 sound set u Likely there is no big difference in that respect, since I don't think there's much power management on such a small chip to power down unused sections. -?¿-0 · Share on DAC chip difference. AK4499 Shootout: Topping D90 vs Gustard A18. RME builds incredible audio technology. the default sound output look like. WiiM Pro - Mola Mola Makua - Apollon NCx500+SS2590 - March Audio Sointuva AWG I have the chance to check the Topping D90 - it has completely lost in my system against two ESS-based DACs. Ayre learn their lesson on the QB-9. jeqbdx cfpwmv quuuea bgmxh fhgwjx bhbls bwzxw fwyf wzlqjml jhd