Reply Quote. 低音双12寸大音圈，动态很大，分析力超高，各类器乐，无论大小编制表现都可谓极致。. Even Eminence has their product design and manufacturing down after many years of durability and fit / finish issues. Available from May 2018, the T34A-4 is a 30 mm metal aluminum/magnesium alloy dome tweeter with a substantial feature set that includes extremely low moving mass, and a fully saturated neodymium motor with copper. It is very good. Bliesma tweeter mated with a waveguide to optimize the off axis / power response integration with midwoofer. Price is: $695. 0 are used and looking for good side subwoofer. Regards, Rich. 5" woofers in aperiodic door boxes, AE IB15, Joying Android HU. The THD measurements at distance of 315 mm and voltage levels 2. Brax Graphic Pro 6. I tried to do a gentle slope. The purpose of the exercise was for Alan (Mr March Audio) to get some feedback on the prototypes from “fresh ears” and to geek out with a fellow ASR member. You can easily see the effect of the Morel-shaped IDR faceplate. Solen sells them for $145 USD each +. 5way design (lower woofer helps compensate baffle step, but is rolled off before upper woofer) Bliesma tweeter mated with a waveguide to optimize the off axis / power response integration with midwoofer. Accuton C90-6-079, check. 5X04-NFA-01 midbass transducer is an over-achiever, and to help understand why, Dickason talks with Lars Risbo about the research and thought process that lead to many of the features found in this woofer. 6/12/2022 added routing templates and updated waveguides for use with these templates. In February, 2018 we tested the first BlieSMa (Germany) product - aluminium-magnesium 34 mm dome tweeter T34A-4. PRICE: $600. I think I've finally nailed the throat for the Scanspeak ring radiator, so I'll be expanding to other sizes and shapes now. New in the box, one was removed for measurements in a project that did not move forward. P. Impedance. Available from May 2018, the T34A-4 is a 30 mm metal aluminum/magnesium alloy dome tweeter with a substantial feature set. BlieSMa T25A-6. Never mounted, never connected. We can't help you with the loose backs and impedance irregularities as only Bliesma knows the product well enough (and stop whining). Blesma, The Limbless Veterans. jpg. Features : • Flush mounted surround and rear mounted magnet system from its own fabric for better sound quality for flat frequency response and wide off-axis response Test Bench: The T34A-4 Tweeter from BlieSMA. I did not want to solder the tweeter out of fear of cooking it. Save Share. At normal 85dB-90dB listening levels, even mid -ranges rarely use more than 1-2 watts continuous with reserve needed only for very transient musical peaks. Other design goals: It is a known that these speakers will be augmented with subwoofer for frequencies below 80Hz The speakers must be able to play well also at low listening levels as the "client" - ie my friend likes to listen to music. T25A-6 25mm Aluminum-Magnesium Alloy Dome Tweeter T25S-6 25mm Silk Dome Tweeter Description. Sensitivity. Several other cast members have been confirmed to join the movie. S. That boost must be compensated in crossover, normally one capacitor does the job. 74 mm Beryllium dome. 1 - 9 of 9 Posts. Testing BlieSMa T34B-4 Beryllium dome Testing new T34A-4 34 mm dome tweeter from BlieSMa Testing ribbon tweeter, Viawave GRT-145W-8. BlieSMa T34B-4 Beryllium Dome Tweeter Matched Pair. 艾卡顿 C158-8-085+ 艾卡顿陶瓷高音 / 伊顿或蒙多福气动式高音 /BlieSMa 铍高音 （ 3 ） 6. Purifi Audio PTT6. I tried contacting the retailer selling the drivers. They all use the same motor and with the exception of the beryllium, all cost about the same, which is to say a lot. The other one had its chamber loose, ready to fall. Do yourself a favor and stop the frustration by sending the tweeters back to Bliesma for repair or replacement. So in baffle I expect ~-5dB. Curved. hificompass@gmail. 94db, 6ohm. Based on the measurements below and simulation of the tweeter with various mid-bass drivers, I'm looking forward to implementing these tweeters in. The Scanspeak dome is a bit tougher nut to crack. This month, in Industry News & Developments Vance Dickason highlights the new Epique woofer range from Dayton Audio, and a new German OEM driver company, BlieSMa, founded by Stas Malikov, a name associated with Accuton for the last 8 years. The Bliesma drivers are really well behaved and the mid is very consistent in radiation up to 1. ctrl BlieSMa was founded January 16, 2018, by Stas Malikov. Price. BlieSMa T25D-6 | HiFiCompass The THD measurements at voltage levels 2. 69. Passive is also a possibility, but will need larger cabinets of course. 83V makes this driver pretty unique. Wire terminals are gold plated. 440 - 8000 Hz. The first product being released by BlieSMa is a 34 mm tweeter, the T34A-4. 77 for 24 months with PayPal Credit*2021-12-03 7:33 pm. MNCC (DSN 882. You can see the result above in this thread in Vituix. m. Features : • Flush mounted surround and rear mounted magnet system from its own fabric for better sound quality for flat frequency response and wide off-axis responseTest Bench: The T34A-4 Tweeter from BlieSMA. Lookswise the Bliesma is a nice match for Accuton drivers. Hificompass did extensive measurements on those and all have been confirmed here also. The E-IX 2 way sealed (acoustic suspension) speaker kit was designed to look like Linn Kan or LS3/5a from the front but sound better than either and boy does it achieve that! The crossover has been designed holistically with UK and EU living spaces in mind where proximity to the walls is needed. DXT measures well, but sonically there are. Member. The THD measurements at distance of 315 mm and voltage levels 2 - 11. 1 user. Customers can post any issues in those threads as long as it is done in a civil manner. The Troels design was a 4 way using all Ellipticor drivers so was pretty top end 1+3. Curious to know if anyone has used the BlieSMa tweeter and potential advantages and disadvantages with the bigger diameter. Very interesting ! The berylium dome will be the first to be released but an aluminium, paper and fabric dome are coming later. Extremely low moving mass for better transient response and higher efficiency. I do have one additional question regarding suppression of metal & ceramic cone harmonic distortion in the critical 1kz to 3khz band. Click here to go to website and download data sheet here. 5" woofers in aperiodic door boxes, AE IB15, Joying Android HU. 16 - driven with 3x Sony XES M3 Eminence LAB 15 - driven with Alpine PDX M12, Helix DSP Pro MKII + Director + Fiio X7 mk2. I used 2xSB17NBAC on the bottom of 3-way and it was good for the price, though it was little bit one-note bass. The iPhone 13 Pro will start from $999 for the lowest-capacity model, while the iPhone 13 Pro Max starts from $1,099. 6 ohms. For these, we partnered with German company BlieSMa, who have been making outstanding transducers for many years. Beryllium dome of Bliesma M74B-6 midrange is protected with grill. Per prior owner, 4 month’s of use on them. Weight. 绅士宝 18WE/8542+ 绅士宝 5520. 5" mids (for sale with all outboard crossovers) SI BM MKV (I will be listing 2 for sale) These tweeters paired incredibly well with the ultra-detailed and dynamic Brax mids, and they would make a good match with many other mids. The THD measurements at distance of 20 mm and voltage level of 5. 80*. 404 - Solen solen. This article was published in Voice Coil, March 2019. 20 kg. The sensitivity of 95 dB/2. Fully saturated neodymium motor with copper sleeve for low non linear and modulation distortion. Bliesma idk. We do not vet any members, use of this facility is at your own risk. For the woofer and midrange, there are several candidates and my budget will be the limitation. Notice the Focal tweeters (Silk Dome) have a higher price tag compared to the Beryllium, Focal near $600 while the BLIESMA T25B-6 is around $250-300. CSD of unit 1. 7 kHz for AlMg and 2. I am pretty sure he will cooperate. All the best components for audio in one place! The compared speaker drivers are displayed here. They are excellent tweeters with great power handling and detail. BlieSMa, located in Blieskastel, Germany, was founded January 16, 2018 by Stas Malikov. That makes it a driver without parallel. Hi Tihomir, what you see on the graph is actually wanted and exemplary effect of the WG. Pages. And that these speakers will be demonstrated at my local high end store whenever corona allows it. BlieSMa T34A-4 34mm AluMag Dome Tweeter. Joined Sep 18, 2019 Messages 691 Likes 346. Wavecor WF120BD03 midwoofer. I was not paid for the review. 30 shipping. 8 g. I want to hold on to that 200Hz crossover to keep the most important midrange band in one driver. 1000, 2x SI SQL 15's true IB, Singer 290A, XSPower D3400, 1k farad maxwell cap. Available in two dome materials - silk for every. 0) 1 reviews $400 USD Check price. 2015 GMC - BliesMa T25B pillars, Dynaudio e430 dash, dual Dayton 7" ES180-Tia woofers in aperiodic door boxes, underfloor sub box Alpine R 15", Stock HU ->NavTV->Helix Ultra, Brax, RF. The Purifi Audio PTT6. I'm close to pulling the trigger on a pair of Bliesma T34B. Single-layer ribbon CCAW (Copper-clad Aluminum Wire) voice coil of Bliesma M74A-6 is wound on titanium former. 60 × 60 × 25 cm. 5" woofers in aperiodic door boxes, AE IB15, Joying Android HU. BlackStar said: BlackStar said: As previously mentioned the tweeters from the Focal ES 165KX2 set are Aramid Fiber, not Silk and not true domes, but a "M" cone. I've had hands-on time with both the 6640's and the D3004/6040-10's. Just as legal as these are: DSP750 In-Wall Loudspeaker. I bought the little 22TAF. 777 posts · Joined 2022. 2、当 DIY 箱达到一定水准以后，还是比较有性价比的，但仍然没有必要和 厂箱比，因为一没有标准，二喇叭也多数不同，三理念也未必. Features : • 25mm aluminium-magnesium alloy dome with variable thickness for ultrasonic first breakup mode • Extremely low moving mass for better transient response and higher efficiency • Fully saturated neodymium motor with copper sleeve for low. Nearfield listening as the speakers are 200-250 cm for listening position. Midranges. 5M08-NFA-01 I already bought the 15" woofers (6x PHL 6201MNd) I'll use the Hypex FA253 (or FA503?) (and of course a 2nd order passive HPF to protect the Bliesma as gy-k confirmed) Speakers will be MTM for LR and TMM for the Center where the speakers form a triangle. Stereo Integrity SQL 15 IB run by Audio System F2. All these drivers have measured perfectly and have had no problem whatsoever. Sockpuppet. Wavecor WF182BD03 midwoofer. Broken ring. This article tests three new 25mm high-frequency transducers from BlieSMa: the T25S silk dome, the T25B beryllium dome, and the T25D diamond dome tweeter. The predecessor was a game changer for tweeters, with it’s 34mm dome, 3mm excursion, wide dispersion and extremely linear frequency response. M74-6_group. 31 (excl. $281. But the Bliesma is quite a bit more advanced than both tweeters in every way, and this shows in the measurements, the Bliesma is better than both in every objective metric, lower distortion, better polar response, and better time domain performance. Together with a 34 mm Bliesma and two RAAL 140-15Ds. 06 + $30. Price is: $695. . Power Handling (RMS) 80 W. Its none of anyone's business. Dec 23, 2022 #41BlieSMa M74P-6 Bass-midwoofer. Want to Buy Leave A Review Message Buyer N. This Test Bench combines three new 25mm high-frequency transducers from German brand BlieSMa into a single characterization: the BlieSMa T25S-6 Silk Dome, the BlieSMa T25B-6 Beryllium Dome, and the BlieSMa T25D-6 Diamond Dome. I spent over $700 on a set of paperweights. All three tweeters appear to be built on the same platform, but optimized for each diaphragm material, and all three share pretty much the same feature set. This thread is about the new lineup of 3” dome mids from Bliesma. 5 (2000w peaks) bandpassed. Natural silk soft dome midrange. Surface area isn't everything. Classifieds: FOR SALE - BLIESMA T25B-6, Beryllium 25mm Dome Tweeter. 7". Prior to starting BlieSMa, Malikov worked at Ultrasound. The HIMARS carries one pod with either six Guided Multiple Launch Rocket. The Bliesma T34A has a similar effortlessness as the ER4 but is much better overall. Bliesma M74A-6 midrange features 74 mm AlMg-alloy dome with varable thickness. 5kHz LR2 for his ER18DXT design because it handled stress testing to 105dB/1m well). Nothing like power blips to cause LF to sneak into the output. 5kHz I was able to get in a manner of minutes quite a nice result (LR4 1. 0X04-NAB-02. I think I've finally nailed the throat for the Scanspeak ring radiator, so I'll be expanding to other sizes and shapes now. Build log in progressIt will cover 250-1K in my system with the M74B/T25B above it. Greetings!! Dear friends, we need your help) I decided to update the tweeters, I want to replace Morel et338 with Bliesma t34, but due to the lack of the opportunity to listen live, I have to focus on reviews . $39. They have built their reputation extremely quickly for building tweeter designs that are at the forefront of driver design. A friend of mine is building a speaker with Purifi 6. 6/20/2021 updated design with new tweeter interface, does not impact performance. It is possible that 500 Hz will be quite normal if you reduce the requirements for maximum SPL. zon001. The Bliesma drivers are really well behaved and the mid is very consistent in radiation up to 1. Showing all 2 results. The BlieSMa has gold connectors and I wanted to show it some non-corrosive love. The purpose of the exercise was for Alan (Mr March Audio) to get some feedback on the prototypes from “fresh ears” and to geek out with a fellow ASR member. They sound extremely similar. #1,707. BlieSMa T25S-6 Silk Dome Tweeter Matched Pair. Bliesma claims their packaging is sufficient to survive the rough journey and their product is designed to cope with all expected environmental conditions. In this edition, Mike Klasco and Nora Wong have compiled an updated directory of. For me, the most interesting part was how silk. 2022-09-10 7:14 pm #21 2022-09-10 7:14 pm #21 augerpro said: The Bliesma doesn't look like it will be easy to make a waveguide fitThe group review of the new BlieSMa 3" M74A-6, M74B-6, M74P-6 and M74S-6 dome mids:. . 80*. #5. The HD measurements at distance 315 mm and voltages of 2. For sale here is a pair of Bliesma T25B-6 Beryllium dome tweeters bought for a project a while back but never got round to using them. the old 3inch ATC dome had double suspension plus overhung coil and a balsa wood stabilizer ring (10x3mm) recessed some mm from upper edge of the coil former. SS - 5,4g membrane weight. They've got an option (which costs truckloads. Accuton C173-6-191 CERAMIC MIDRANGE DRIVER. 17, with availability starting Sept. 8+, Audio System F2D. FI: BlieSMa T34B - High-sensitivity tweeter with 34-mm beryllium alloy dome. 5" true midrange. If the "Excel series" behave the same way, they aren't very good. I find solen is a little more expensive than some of the EU sellers so it could be a little less elsewhere. Woofer – Small Signal Analysis. MNCC, or 901. Also, the Bliesma was on sale for black Friday. BlieSMa T34A-4 34mm AluMag Dome Tweeter. 80 €356. The speaker cabinet is a tower of 109 cm high, 45 cm wide and 40 cm deep. Even at 107dBSpl it stays lower. Just as legal as these are: DSP750 In-Wall Loudspeaker. The fun part is that I've spent an evening talking with the designer Edwin Van Rijnveld. Wavecor WF182BD03 midwoofer. 21WE looks like the one of few 8inchers promising satisfactory results when used in 2-way. I think I eliminated 100% of speakers and solved the hobby. 34 mm. 5 years collecting drivers they are all in house, so time to order crossover components. disconnects out of the package on a. Flux density 2,2T vs 1,5T. 13 December 2019, 12:16 Friday. I have no reason to use the T34B (which I'm using now) the T25 is much better for this concept. The article compares their features, impedance, frequency response, distortion, and SPL performance using various analyzers and microphones. BlieSMa was founded January 16, 2018, by Stas Malikov. The Bliesma design however makes this a near impossible task without a dedicated jig of sorts. The fun part is that I've spent an evening talking with the designer Edwin Van Rijnveld. •••34A has slightly higher sensitivity. The tweeters i received were in factory packaging with one driver's rear chamber completely detached and rattling around. 5 寸. $125 (2) Dayton AMT2-4. The Bliesma get's 107dBSpl - way higher sensitivity. Blissoma creates organic, holistic, whole plant skincare that solves skin problems. The Bliesma T34A-$ is an exceptional Aluminium-Magnesium tweeter. I saw that briefly, it was part of the Elipticor range so will probably rival the Bliesma T74B 3†Beryllium dome for price. BLIESMA: Midrange Type: Aluminum Magnesium Dome Midrange Open Back: Cone / Dome Diameter: 142mm: Impedance: 6 ohms: Power Handling (RMS) W: Frequency Response: 180 - 2800 Hz: Sensitivity: 94. Seas W18 Magnesium - together with Bliesma in WG and crossed ovet at ~1k it could be very good. Don't forget - one M74B at 2,83V already gives you 97-98dBSpl! With an Accuton C90 you would need 9-10V to get that level - and it's a 5". From drivers datasheet, I would start with LR4th (D&D 8C) from 2kHz moving upward. These were purchased from Solen on 3/24. •••2015 GMC - BliesMa T25B pillars, Dynaudio e430 dash, dual Dayton 7" ES180-Tia woofers in aperiodic door boxes, underfloor sub box Alpine R 15", Stock HU ->NavTV->Helix Ultra, Brax, RF amps 2006 Chrysler 300c - BliesMa T25B pillars, Xcelsus XXM325 Dash, Satori 9. 2 Volt were carried out with High Pass Filter "on" (2nd order Butterworth type, 800 Hz cutoff, HPF2-800) . 71 Buy 2 $903. To my surprise the Bliesma is able to achieve a subjectively cleaner sound at levels that would have me reaching for the volume control with most compression drivers. Audax TW034 and Seas T35-C002, these may be right up my alley considering how much xmax they have to cope with a lower xover point and still play reasonably loud. (BlieSMa t25b + ETON 3-212 + Seas l26roy) + Hypex + PE boxes. 2. Not very practical for the size constraints in an automobile. eBay Columbia, Missouri Mar 16, 2022 (Edited Mar 24, 2022). 7 kHz for Be we can see bursts of the 3rd and 5th harmonics. Facebook/HiFiCompass. Also B&W 800 tweeters are CVD synthetic diamond. I can share STL/STEP files for 3D printers via email on request. 84 each one. So many mfg's will state "linear" excursion, but that is based on geometry of voice coil vs gap height and/or +10% delta. 2021 Isirs UpdateWoofer is Seas L26ROY XM001-04 and amp Hypex FA123. It has 3mm of xmax. BlieSMa T34B – 4 Beryllium Dome Tweeter (Pair) We are a UK distributor for the highly acclaimed BlieSMa tweeters. Qts = 0. 96 dB. There is no mention of a double suspension or methods of controlling rocking modes in the bullet points on the data sheet. 4. If anyone is wondering, the 74B is capable of 115. 5’s along with Bliesma beryllium tweeters as well. (*) Prices are per unit, excluding Value Added Tax (VAT 24%) AUDIO-HI. No ferrofluid for improved dynamics. Amps: Biketronics BT4210 (210 x 4 mids/tweets), Biketronics BT3725 (250 x 2 midbasses, 700 x 1 sub). Crimping it is! The BlieSMa has gold connectors and I wanted to show it some non-corrosive love. 设备： 音源：享声D1 Pro转盘；Acre Mdac-II解码； 线材：敏力4平方6N无氧铜； 功. The transducers are the 15 inch Scanspeak Ellipticor 38WE8582T00 as woofer, the 8 inch Scanspeak Ellipticor 21WE8542T00 as lo-midrange, the new 3 inch dome Bliesma M74B-6 as hi-midrange and the Viawave SRT-7 ribbon tweeter. Moreso, this is information for those who prefer “just the facts” and prefer to have the data without the filler. And every time you decide to tweet the crossover point or the response curve, you got to spend more on different value capacitor, inductor or resistor. Need Career, Pay or Personnel help? Call MyNavy Career Center: 833. €219. #3. Very flat as well, with dome breakup at a very high frequency. This is not a driver to work with the usual DiY methods. I've never seen a review of it, so don't know if it's the same quality. I just didn't care for the bite of the Bliesma T34B. And this is puzzling. Yes it will be an high SPL / low distortion active 3-way (Hypex Fusion FA503) with dual PHL 6021MNd crossed over at 200Hz to dual Purifi PTT6. C. Reply Quote. 5 way with rev 15W/8530k01, which arrive tomo Procrastinating over tweeter. 54. 97 dB. Im not going to go into a lot of detail in this post. Just be careful with Bliesma crossover, this small Bliesma does not like low Fc. Though I worked on several 4ways and 3ways, I still like and enjoy quite simple and easy projects. 0 review. Flux density 2,2T vs 1,5T. Mids: Satori MW13P-4 5" (Factory Door Locations). They have built their reputation extremely quickly for building tweeter designs that are at the forefront of driver design. 33 Each. headshake Active Member. <40dB/1% for BliesMa @ 5. Power Handling (RMS) 100 W. Its time for me to start another project. So it will be easy to compare. (currently seas l26roy) It will be crossed at aprox. 2013 Subaru Legacy: Kenwood DDX9705s, minidsp CDSP 8x12DL, 2x Audio System F4-650, Bliesma T25b, Xcelsus xxm325, SI TM65 MKIV, Hivi d8. $1,379. Scan Speak Classic 21W/8555-10 8" Woofer. Im not disclosing the name. I was delighted to see that BlieSMa is about to release it's new 3" dome midrange in 4, yes, 4 different flavors: paper, silk, Mg-Al, and of course Beryllium. 5 PR passive radiators and the Bliesma T34B-4 Beryllium tweeter. So for frequencies around 2kHz directivities of 18WE and T34B WG are well matched. And the reviews turned out to be contradictory . What I would like to share is the use. Bliesma are developing a new series of 3” dome but I suspect they will be double your budget for the silk/soft dome and the Berillium dome will need you to sell a kidney. 5 might better crossed earlier since AMT21CM has pretty wide dispersion at 3. Together with a 34 mm Bliesma and two RAAL 140-15Ds. Sensitivity. New, only used for measurements. But I'm going to move to a different contour, I suspect fabric domes work better in OS contours. So a quick question--say I wanted to use the BLieSMa midrange (silk or Be, not sure), could you offer an opinion about mating 15" woofer such as the Audio Elegance TD15H to a 3" mid--it seems like a radical transistion but probaly no more so than a 6. £420 . 5W04 woofer, PTT6. Both offer sensitivity ~90dB, which is by 3dB more compared to 4878T00. IMPORTANT NOTE !!! Our official distributors in Europe are : M74B 3” beryllium dome mid Purifi PTT6. Tweeter - Bliesma T25B Midrange - Bliesma M74B LF - Purify. Build quality is superb. . CONDITION: Used - on a scale of 1-10: 10. BliSMa. Been on their site for a a little while. The transition between the speakers would be interesting to get right. 4 ohms. The Faital is about 9db's more senitive with impedance taken into account. Both M74B are used with the back covers removed in a custom airtight, slim chamber, this allows for a minimal dome separation for a better dipole behavior. 5" woofers in aperiodic door boxes, AE IB15, Joying Android HU. Comparing both speakers in terms of CD, again Bliesma is the winner. 97db, 6ohm. 330. eu BlieSMa M74A-6, M74B-6, M74P-6 and M74S-6 What is on the test bench? In the end of 2021, the pleased the loudspeaker designers community with the release of a line of four 3" dome midranges at once, the development of which had been rumored for a long time. Expected ETA is mid-February. Wavecor BlieSMa Ardent. It will be a 2way + rearfill and sub. 7米录制方式：立体声采样率：48000H, 视频播放量 21669、弹幕. That´s why the Bliesma M142-6. Figure 3 depicts the TSCT 1044’s on- and off-axis response. Magico is the leader in high-end loudspeaker design. Bliesma T34b-4. As a whole, when used in their pistonic range within VC excursion limits, HF drivers shouldn't exhibit too much of their own signature. BlieSMa T25A-6. The T34s can play at levels that very few dome tweeters are capable of while sounding good, the distortion down low beats all the competitors too. 5X the thickness. Lookswise the Bliesma is a nice match for Accuton drivers. Aside from code issues, it seems like an amp plate on the wall would also look hideous compared to the sensible approach of a remote rack and running multi core in wall rated speaker cables. 2. 0) 1 reviews $525 USD Check price. 9 and 4. 02. 2. Yes it will be an high SPL / low distortion active 3-way (Hypex Fusion FA503) with dual PHL 6021MNd crossed over at 200Hz to dual Purifi PTT6. #1. Sensitivity is same as 4878T01, ~89-90dB after bafflestep. From my measurements of 18WU, there is -5. Woofer will be most likely the new Purifi PTT10 crossed activ. Quantity + - ADD TO CART SKU: M74A-6 Brand: BLIESMA Categories: Speaker Drivers; Share: 24/7 SUPPORT. New in the box. Weight. Thick aluminium mounting flange of Bliesma M74A-6 is powder coated, aluminium rear chamber is filled with natural wool. BlieSMa M74B-6 €899. 330. Midbasses: Dayton Designer DSA175-8 6. New project: Bliesma T34B in WG, 18WE, 32W. And that’s a challenge I haven’t been able to overcome- to properly compare a poly cone to paper cone to aluminum cone to beryllium cone. Wishlist Compare CA$563.