The first product being released by BlieSMa is a 34 mm tweeter, the T34A-4. Amps: Biketronics BT4210 (210 x 4 mids/tweets), Biketronics BT3725 (250 x 2 midbasses, 700 x 1 sub). What I would like to share is the use. Wire terminals are gold-plated. Digital_Thor Senior Member. Bulk savings: Buy 1 $921. BlieSMa T25S-6 Silk Dome Tweeter Matched Pair. The VM752 also offers 94 dB sensitivity, and 100 W (AES) rated power handling, has a 200 mm diameter ferrite magnet, with a 2 mm Xmax, and a 500-Hz-to-4-kHz operating range. I've seen a fair amount of discussion of putting a Bliesma T25B in a DIY fabricated waveguide, but I haven't seen anything where someone tried it with the Visaton WG148 or the Monacor WG300 or another commercially available waveguide. まだBlieSMaを鳴らして1日なのでちょっとかわいそうな比較ではありますが（とは言ってもインピーダンスカーブを見る限り、バーンインは完了してますが）、BlieSMaはScan speakと比較すると「 艶といった品位や音の芯は無い物の、脚色なくストイックに鳴る 」というのが最初に感じた印象です。Hi I have a build starting this week, a 2. Thanks for the suggestions. I recommend precision routing both sides (if you use MDF). Sensitivity. 2 Volt were carried. Nice heavy aluminum housing. These look a curious beast maybe to bridge between a woofer/subwoofer and their M74 upper mid domes or with the. 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. Sensitivity. 6622) Email MNCC, MNCC Chat Comments or Suggestions about this website? Email the WebmasterBlieSMa M74B-6 74mm midrange speakers Berylium dome 6 ohm. SB Acoustics SB15MFC30-4 | HiFiCompass. The predecessor was a game changer for tweeters, with it’s. The TSCT 1044’s frequency response is a gently rising slope and a smooth ±2. The Bliesma T34A - 4 is an exceptional Aluminium. So in baffle I expect ~-5dB. So many mfg's will state "linear" excursion, but that is based on geometry of voice coil vs gap height and/or +10% delta. I was just talking to Solen Electronics, and they told me that they currently have the BlieSMa T25B tweeters on order. 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. I listened to a variety of music, some on CD and some on YouTube. Even at 107dBSpl it stays lower. 77 for 24 months with PayPal Credit*2021-12-03 7:33 pm. , Scanspeak…? Apparently I can’t make things too easy on myself. jpg. 33 Each. The Bliesma T34B-$ is an beryllium tweeter which offers an upgrade over the already brilliant T34A-4. Nov 22, 2021. The matching level of Bliesma is awesome, particularly their tweeters. The tweeters reset what is possible from a tweeter with very wide bandwidth and linearity. 6V input). The Bliesma drivers are really well behaved and the mid is very consistent in radiation up to 1. Front stage: 3 way Steg Masterstroke MSS 6 IB, MSS 3 and MSS 1. Beryllium dome of Bliesma M74B-6 midrange is protected with grill. Scanspeak 6640,. Frequency Response. 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. 0 g) of moving part, with linear excursion of 2. About us. 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. The Illuminator tweeters continue on with the heritage of the renowned Revelator series. BlieSMa T25A-6. Sponsored. 777 posts · Joined 2022. 5M or PTT5. The Bliesma T34 is better in every aspect, it is a good option at a lower price if you do not need high spl. Features : • Flush mounted surround and rear mounted magnet system variable thickness for ultrasonic first breakup mode for flat frequency response and wide off-axis response2015 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. Tweeter is BlieSMa T25B crossed at 2750hz LR4 passiv. I have earlier tested Seas DXT vs T34b and DXT didnt sound bad in comparison. Off-axis, the device is only –3 dB down at 13 kHz from. Dimensions. Single-layer ribbon voice coil of Bliesma M74B-6 is wound with copper-clad aluminum wire (CCAW) on titanium former. 3, Vas = 25 liter. All three tweeters appear to be built on the same platform, but optimized for each diaphragm material, and all three. The satori also has a low Fs and great response, price is similar. Bliesma T34B 2x Purifi PTT6. 00 star(s) (5. Woofer will be most likely the new Purifi PTT10 crossed activ. I can share STL/STEP files for 3D printers via email on request. Mar 28, 2021 #18 For the first two pictures, with felt 4k to 5k and 12k to 15k Hz actually increased. Nearfield listening as the speakers are 200-250 cm for listening position. BlieSMa T25S-6 Silk Dome Tweeter Matched Pair. Single-layer ribbon voice coil of Bliesma M74B-6 is wound with copper-clad aluminum wire (CCAW) on titanium former. The speaker cabinet is a tower of 109 cm high, 45 cm wide and 40 cm deep. I think t34a should sound almost as good as the beryllium version. SALE PENDING FS Bliesma T25A-6 Tweeters ONE MATCHED PAIR BNIB; ONE PAIR SOLD. Our ergonomic designs easily adapt to a surgeon's technique and fully cover the expanding range of procedures that benefit from ultrasound guidance. 5 PR passive radiators and the Bliesma T34B-4 Beryllium tweeter. 5X the thickness. Scanspeak's small faceplate beryllium D3004/604010 could also be an option to minimise CtC with a ~2kHz crossover. . I already shared all the details here. This is not a driver to work with the usual DiY methods. 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. 8 g. For the woofer and midrange, there are several candidates and my budget will be the limitation. Lookswise the Bliesma is a nice match for Accuton drivers. Wishlist Compare CA$563. Magnesium – aluminium. Used for about one year. There is no mention of a double suspension or methods of controlling rocking modes in the bullet points on the data sheet. #1. 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. It has 3mm of xmax. 97 dB. 0 / 1000. com provides these forums for the convenience of our members, but makes no warranty nor assumes any responsibility. Nathaniel117 5. Wire terminals are gold-plated. HammerSandwichSo this is the last time I'm going to explain thus for everyone who thinks I'm an idiot and tried to repair my drivers. later they gave up this concept for more upper bandwith (underhung coil) the coil was made of flat edgewound CCAWire on kapton former. Voice coil diameter. Bliesma M74-B6 | diyAudio. Looks like we have an idea of the max price: $730USD for one BlieSMa Be mid dome. Beryllium dome of Bliesma M74B-6 midrange is protected with grill. 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. Remarks : Internal thread M3 (fixing tweeter) and M4 (fixing support Comet) are to be carried out by. 330. 6 ohms. SACD DVD-Audio 11. MatriXover - universal matrix two-way crossover . The BlieSMa M74S-6 is a 74mm silk dome midrange driver that is designed for high-end audio applications. Had them installed in dash pods. Product description. Forum Donor. Photo 1: The BDT-2901 uses a moderately wide 3mm surround suspending the 29mm Dr. If you're going to jump up to a large format beryllium dome tweeter you would be much better off going with the Bliesma T34B-4's, which are arguably the best full-format dome tweeters made at the moment. They all use the same motor and with the exception of the beryllium, all cost about the same, which is to say a lot. 绅士宝 18WU/8741+ 绅士宝 7140/ 魔雷 10442021-01-09 4:38 pm. This WG was used with Bliesma. 8+, Audio System F2D. See full list on soundimports. 440 - 8000 Hz. It has 3mm of xmax. Wavecor WF120BD03 midwoofer. They provide very similar performance in similar volume ~70l. (currently seas l26roy) It will be crossed at aprox. I want to hold on to that 200Hz crossover to keep the most important midrange band in one driver. And it gives a lot: 97dB, flat to 5K and beyond depending on. I have some very dynamic piano and vocal tracks I use for auditioning speakers, specifically for midrange issues. Dayton audio OmniMic V2 Precision Measurement System. 00. 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. The fun part is that I've spent an evening talking with the designer Edwin Van Rijnveld. htm Testing ribbon tweeter, Viawave GRT-145-4 LCR RIAA shoot-out, EAR-912 vs vdh The Grail vs Valab LCR-1 Testing EAR 912 preamplifier with phono-stage Testing Alumen Z-Caps from Jantzen. 97 dB. Reply Quote. Hoping it can handle 117db/1m with a 4th order at 600hz. Those already have an OD over 4-5". 2 mm linear excursion and a large vent channel result in an. 5X08-NFA-01+Viawave SRT-7)9/1/2021 added designs to the Scanspeak and Bliesma T25 pages. 2 Volt were carried out with High Pass Filter "on" (2nd order Butterworth type, 800 Hz cutoff, HPF2-800) . bbfoto said: Yes, just a bit less than the Audiofrog's at their normal MAP pricing. Bliesma M74B three inch dome driver. Over the last 20 years, Malikov has worked at Ultrasound Technologies; at industry legend Morel as a QC manager and transducer engineer; and at Accuton, the well-known high-end driver OEM, as a production engineer for more than 8. Sensitivity. I just can't get a break with this bad luck. 0X04-NAB-02 looks to have an F3 of 65Hz and. Thick aluminium mounting flange is powder coated, aluminium rear chamber is filled with. As for the drivers vertical interference artefacts, you may calculate for the Bliesma combo lambda_2500Hz/95mm, and for the Purify combo lambda_2000Hz/121mm. $921. Testing 34 mm AlMg dome T34A-4 from BlieSMa/Germany. $400 shipped, includes PayPal fees. Hello Pida, this project and the shamal have been very inspiring. 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. Here is the Hificompass test of the T34. Need Career, Pay or Personnel help? Call MyNavy Career Center: 833. How loud are we talking? With my live bright tone bass guitar (Marcus Miller to Les Claypool) I was clipping a 4 ohm 10PR300 with one channel of a PLD4. It really is a game changer for tweeters, with it’s 34mm dome, 3mm excursion, wide dispersion and extremely linear frequency response it’s an easy to use driver that can be used safely down to around 1. Sensitivity. 5" woofers in aperiodic door boxes, AE IB15, Joying Android HU. ••• This is a subjective, qualitative, sighted evaluation and comparison of a prototype pair of March Audio Sointuva loudspeakers with Purifi woofers and Bliesma tweeters. . 5", and Hypex FA123 What does everyone think?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. New, only used for measurements. From my own experiences with 12MU, DXT, Bliesma, 4inch WG etc. 00. 4. We are a UK distributor for the highly acclaimed BlieSMa tweeters. Wavecor BlieSMa Ardent. Scan Speaks 3" about 6-8V, TangBand also. Only taken out of the boxes for pictures. 3µF. Select by tags: All Popular Beryllium. 11-16-2021, 08:08 AM. 00 USD) per pair. And so, three months later it's new product is on the our test bench - beryllium 34 mm dome tweeter T34B-4. If anyone is wondering, the 74B is capable of 115. 7 kHz for Be we can see bursts of the 3rd and 5th harmonics. So it will be easy to compare. Kurt Mueller (DKM) silk dome. #182. Very interesting ! The berylium dome will be the first to be released but an aluminium, paper and fabric dome are coming later. 16 September 2023, 20:32 Saturday. Joined 2020. Single-layer ribbon CCAW (Copper-clad Aluminum Wire) voice coil of Bliesma M74A-6 is wound on titanium former. 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. 5M08 and crossed over at 2500Hz to the (probably) Bliesma T34A. 5W04-01A midwoofer. 3+8+15 layout iirc. 97db, 6ohm. Stanislav Malikov has a history at Accuton and Morell companies and has started his own production of this unusual large aluminum/magnesium dome and offered me a pair for testing. BlieSMa изгради репутацията си чрез изграждане на дизайни на пищялки, които са на върха на индустрията за проектиране на драйвери. New OEM Driver Company: BlieSMa. Morel Ticw1258ftX2+ accuton 090 + Bliesma T34B 盟主时代_姚璎格 - 八月照相馆. . BlieSMa was founded January 16, 2018, by Stas Malikov. Accuton (Germany), for example,. 7米录制方式：立体声采样率：48000H, 视频播放量 21669、弹幕. Info sheets on the new Bliesma 3" domes has been released on Vegalab and Hificompas posted on Diyaudio, four variants - Silk, Aluminium, Paper and Beryllium. Seattle Area. The predecessor was a game changer for tweeters, with it’s 34mm dome, 3mm excursion, wide dispersion and extremely linear frequency response. And the reviews turned out to be contradictory . Wire terminals are gold plated. Welcome to BlieSMa. Midranges. Waveguide for the BlieSMa T25B-6 (T25D-6) tweeter. 96 dB. Moving mass of the driver is as low as 1. The B has a weird softness to it, that I actually find annoying and reminds me more of silk tweeters. The box uses edge moulding to form the 44mm radius. Soon I will have SB17CAC/Seas DXT 2way, LR4, very nice. Despite the low price, the speaker is beautifully finished with a curved port and beautiful light oak finish: A magnetic grill covers. Brax Graphic Pro 6. And if your looking for a 3" dome and not in a hurry time wise,also look at what. Alternatively the SB, Viawave and Bliesma stuff are good calls too. Joined 2006. 2 Volt were carried out with. New waveguides! Bliesma T34B looks pretty good out of the gate. htm Testing ribbon tweeter, Viawave GRT-145-4 LCR RIAA shoot-out, EAR-912 vs vdh The Grail vs Valab LCR-1 Testing EAR 912 preamplifier with phono-stage Testing Alumen Z-Caps from Jantzen Audio, a new foil capacitor The Siltech Symphony uses two of these. 94db, 6ohm. Register; Login; Place an Ad Free for hobbyists! Hardware . 71 + $33. Customers can post any issues in those threads as long as it. Features : • 34mm beryllium dome with ultrasonic first breakup • Flush mounted surround and rear mounted magnet system mode for flat frequency response and wide off-axis responseComparing Bliesma A and B tweeters directly, free field on axis (eliminating the differences in directivity due to different dome profiles), both filtered to flat FR on axis, to me there is a distinct difference in timbre. SHIPPING: Included, Fedex ground. The measurements of a pre-production sample of the BlieSMa T25B-6 tweeter. Bliesma t25A or S Bliesma m74A or S The youtube channel PresentDayProduction loved the Silk version for their studio monitors but reviews I have read often say they seem soft and the A version is less colored. Prospector · #14 · Jan 4, 2023. And he’s making both a passive version for luddites, and an active version for music lovers. Sd = 180 cm^2, that is more surface area than a 7" woofer, and almost as much as an 8" woofer. Quantity + - ADD TO CART SKU: M74A-6 Brand: BLIESMA Categories: Speaker Drivers; Share: 24/7 SUPPORT. Reply Quote. Volvo 850 S70 V70 C70 Big Brake Kit Brembo Upgrade Adapters 336mm . 5" midbass to a typical tweeter. Joined Mar 24, 2018 Messages 306 Likes 217 Location Denmark. The THD measurements at distance of 315 mm and voltage levels 2. 75” depth) faceplate. 404 - Solen solen. I'm trying to do the best I can do here. 13 December 2019, 12:16 Friday. Item Information. You can add up to three drivers for comparing. 西雅士石墨烯SEAS E0073+Bliesma T34B_花木兰. 94db, 6ohm asking for $580. 83V makes this driver pretty unique. 0 review. New waveguides! Bliesma T34B looks pretty good out of the gate. 83 -11. or ask for better offer Beryllium dome midrange. As a whole, when used in their pistonic range within VC excursion limits, HF drivers shouldn't exhibit too much of their own signature. The Bliesma T34B-4 1-1/2" Beryllium tweeter is the upgraded version of the T34A-4. Plus it can cross low (Mark K had it at 1. #1,707. Not very practical for the size constraints in an automobile. 2018-12-31 6:03 pm. 5 (2000w peaks). 5 寸. Straight baffle also provides good results, but to achieve good phase tracking LR2 is not possible and you will need to implement ~LR4. Sensitivity. 06 + $30. 6 ohms. #1. I am settle with bliesma t25b in augerpro waveguide (first tests and measurements in april). Bliesma also has a huge 3" voice coil - will take some power. 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. This will yield very nice horizontal off axis responses and most probably no dip in power response at Fc when vertical measurements are included. Single-layer ribbon CCAW (Copper-clad Aluminum Wire) voice coil of Bliesma M74P-6 is wound on titanium former. #23. 1; 2; 3; First Prev 3 of 3 Go to page. PTT8. Seas W18 Magnesium - together with Bliesma in WG and crossed ovet at ~1k it could be very good. Including the unique cone assembly that consists of a mildly curvilinear paper cone made with a proprietary fiber. 34 mm. So for frequencies around 2kHz directivities of 18WE and T34B WG are well matched. By its construction the new tweeter is exactly the same as the previous one, except for the material and shape of the membrane. BlieSMa was founded and in Germany in 2018 by Stanislav Malikov who for a long time worked in such world famous companies which. 6 Volt were carried out with High Pass Filter "on" (4th order. まだBlieSMaを鳴らして1日なのでちょっとかわいそうな比較ではありますが（とは言ってもインピーダンスカーブを見る限り、バーンインは完了してますが）、BlieSMaはScan speakと比較すると「 艶といった品位や音の芯は無い物の、脚色なくストイックに鳴る 」というのが最初に感じた印象です。 Hi I have a build starting this week, a 2. . 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 had to buy all of the gold "Female Disconnect" sizes since none of my drivers are the same. Build log in progressIt will cover 250-1K in my system with the M74B/T25B above it. Frequency Response. Comparing both speakers in terms of CD, again Bliesma is the winner. 5 dB Features : • 34mm beryllium dome with variable thickness for ultrasonic first breakup mode • Extremely low moving mass for better. Amplifier dude. Clarke, Thomas Flynn and more are among the cast of Red, White & Royal Blue. 83 Vrms. 95db, 6ohm. . Just know that the Purifi PTT6. Please feel free to share any thoughts or experience about them. 5" woofers in aperiodic door boxes, AE IB15, Joying Android HU. 425 - 4500 Hz. Types and purpose of the measurements. Bliesma tweeter mated with a waveguide to optimize the off axis / power response integration with midwoofer. Bliesma M74S-6 midranges feature 74 mm natural silk soft dome with integrated surround and protection grill. Moving mass of the driver is as low as 1. 4 ohms. BLIESMA T34A-4, Aluminum/Magnesium. 60 × 60 × 25 cm. The 25B seems like the better choice in that dome size to me and the more on axis the better. Bliesma dome range also has good values: "The confirmed low cutoff frequency for all models is 600 Hz with at least 2nd order filtering. Blesma, The Limbless Veterans. Highlights. From time to time I get request for the details of this waveguide so I created this thread to share the details, and to see the experiences and measurements from those who used this WG. Red, White & Royal Blue premieres on the 11th of August on Prime Video. The new tweeter takes those base features and builds on them. IMPORTANT NOTE !!! Our official distributors in Europe are : M74 series 3” dome midrange lineup. kiklop32 Discussion starterBliesma T34B questions. Yes it’s an amazing driver. Stereo Integrity SQL 15 IB run by Audio System F2. Welcome to BlieSMa. SFB-1000D, SI SPL-12 subwoofer sealed. com and the dealer selling this car at any telephone number I provide, including, without limitation, communications sent via text message to my cell phone or communications sent using an autodialer or prerecorded. 95 kg. So, 250-1K for the M142, 1-4K for the M74, 4K up for the T25. This Test Bench characterizes the T34B-4 34mm beryllium dome tweeter from BlieSMa, a German company founded in 2018 by Stas Malikov. This has been teased for a while now, we decided to put it on hold at the start of covid but are now ready for release. You will go mad if you just try the fem. Wire terminals are gold-plated. 91 + $30. Shown below is the X/O and response for the rear mounted T34B. The ETON has a 28mm magnesium/ceramic dome. eBay Columbia, Missouri Mar 16, 2022 (Edited Mar 24, 2022). Two different worlds, one love story for the ages. Can be associated with the mounting model: PF1. 2013 Subaru Legacy: Kenwood DDX9705s, minidsp CDSP 8x12DL, 2x Audio System F4-650, Bliesma T25b, Xcelsus xxm325, SI TM65 MKIV, Hivi d8. Regards, Rich. Hypex fusion 253 or 503 for plate amp. Linear excursion. All diyAudio rules about conduct apply and will be enforced. Building time should be arround 6-12 months. A new build thread with. 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. Condition: New New. C22T. $281. The off axis dispersion will still be better than most speakers. Need Career, Pay or Personnel help? Call MyNavy Career Center: 833. Wire terminals are gold plated. The first product released by BlieSMa is the T34A, a 34. What a disappointingly engineered design. Bliesma. The THD measurements at distance of 315 mm and voltage levels 2 - 11. The review on this website is a brief overview and summary of the objective performance of this speaker. The THD measurements at distance of 20 mm and voltage level of 5. 34A starts to beam at 3kHz, 25B starts to beam at 4kHz. Figure 1: This is a cutaway drawing of the Bold North Audio. 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. The iPhone 13 Pro will start from $999 for the lowest-capacity model, while the iPhone 13 Pro Max starts from $1,099. 5寸口径上，石墨烯E0073就是王者了。. 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. Vinyl 299. BlieSMa T34A-4 34mm AluMag Dome Tweeter. Saying I'm looking forward to that is an understatement. 5M08-NFA-01A 6. 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. •••34A has slightly higher sensitivity. I do have one additional question regarding suppression of metal & ceramic cone harmonic distortion in the critical 1kz to 3khz band. Bliesma M74S-6, T25S-6. These look a curious beast maybe to bridge between a woofer/subwoofer and their M74 upper mid domes or with the aluminium possibly their T34 tweeters in a wave guide. 80 €356. The build quality is impressive.