Troels gravesen midrange

Troels gravesen midrange. SEAS-CENTER-EXCEL with W18NX001 midbass drivers. Midrange port: 50x100 mm. 2 (top width) mm and 135 mm (height). 4: Cut 2 pcs of 25 x 75 cm and place on sides and bottom of compartment 4. Google search reveals a multitude if finishes of the B&W 802. Points of crossover; 400 and 2600 Hz, 2nd order LR. The Satori MW16P is an unusual driver in having a frequency response all the way to 15 kHz, like a full-range driver. BACK TO INTRO PAGE. The latter facilitates some more upper midrange presence, something that brings the music into the room rather than being a window to the music (read OBL-11 to follow the discussion). CABINET BACK TO INDEX. Unfortunately the former owner of these speakers had connected the tweeter with the wrong polarity and may have "enjoyed" a less than ideal sound for a couple decades. docx. These drivers are sensitive: 93-94 dB in the midrange and 100 dB from 2 kHz up to 10-12 kHz. The midrange-treble transparency is astonishing to my ears. Use 390 mm depth + front panel. The ancient Greeks didn't distinguish between art and craftsmanship. So, a 3-way calls for a complete re-build of the L26 enclosure. Version 2 comes with Superior-Z for midrange and Alumen-Z for both horn and super-tweeter. Combined we get the red line, but as said, don't get too excited about a flat response to 30 Hz. click image to view large. Stuff with acoustilux. Impedance: 4-8 Ohms. Based on simulation, the 10RS350 will make F3 = 38 Hz from 45 litres and assuming 10% increase in volume from damping materials we should end up at F3 = 36 Hz, more than enough for our This is more than 3 times a ScanSpeak 18W/8531G00 driver! Imagine 3 x 6½ drivers in the same cab. Some PA driver manufacturers do not even make 10" drivers as 12" seems a not unusual size for midrange drivers in PA world, and if you mean bass, then 15-21". e JBL LE5-12 middrivers. The 22W bass driver comes with a 235 cm^2 membrane area, quite high for an 8" driver. CONCEPT. Lots of useful information on his website and I can highly recommend it. 7 kHz, 2nd order LR2 topology. May 16, 2024 · Some call the voicing of speakers an art. If you change front panel dimensions, actual drivers, correct impedance, placement of drivers and cabinet tilt in the constructions shown on these pages, you need a new After the surrounds were coated with some very dilute coating material, they regained performance and they play better than you would expect. The mid-high integration is exceptional, the highs are clear in the most natural way. Summary: Please do not ask what speakers to build. These babies rock and deliver for the size an astonishing response in upper-bass/lower midrange. I am very happy with the obtained results. 2023: Having been around for some time now, it has been decided to launch the TL-1 and TL-2 in two versions, where: Version 1 comes with Superior-Z for midrange, Amber-Z for horn and Alumen-Z caps for super-tweeter. Faital-3WC-15, built by Xavier. Download driver data files: 830860, D2604/830000. Power handling: 90 watts based on bass driver long term power handling. Voicing a speakers is a matter of taste like adding spices to a stew. Sensitivity around 89 dB, and it's only 88 EUR! The tweeter here, R2604/833000 made a perfect sounding match to the 8535-01 middriver from an LR2 Jun 7, 2022 · Currently running them through a McIntosh MC 250. The 2-inch is ear-marked for small laptop mini systems, where the 10F leaves a lot of Hard-pressed paper cones for midrange has been tried in the Jenzen SEAS ER and SBA 61-NRXC and both drivers need either notch filters or 4th order crossover to deal with cone break-up. But a modified version of a design from Troels Gravesen (Denmark) known as the CNO-4. Former notion on hard domes making "hard sound" seems gone and we even have some extremely good aluminium domes like the ScanSpeak D2904/980000 and SBA 26ADC-C000-4 that rival Be domes. So, here's a SEAS version. The center pole piece has a conical boring focusing the magnetic field and reducing stray field. A: Place 1 piece 25 x 100 cm in upper part of bass cabinet covering rear and sides. CNO-25-mkII is the second speaker in a range of upgraded CNO constructions. CURV is more rigid compared to mineral filled PP, yet provides an exemplary roll-off profile as can be seen from measurements below. Workshop pics. 1. Dimensions: 34 x 40 x 50 cm, WxDxH. Above the modeled response of the 8008 in a 48 litre cabinet. This is a very important frequency range giving volume to grand piano and the cello and if good, makes us - at least for some time - forget about the missing 15" bass driver. Left: Routing for bass and tweeter. Not necessarily a new crossover, but at least a replacement of existing components with the best possible coils and caps within a decent price range, hence this article on how to up-grade your nineties The ScanSpeak Discovery 26W/8534G00 is a really great driver for the price it appears. Attach with staples or dots of Superfix close to front panel allowing access to mid-tweeter crossover. In particular L3 was critical in getting midrange the balance right. Run the -ATS from the best amplifiers available and it will deliver! I installed the modified mid-range drivers after playing in for about 50 hours. I often have the quest for describing the difference in sound from two speakers. Basics: 4-driver speaker. This version uses the Hypex plate amplifier for subwoofer duty and based on its efficiency only requires a handful of watts to drive the top end. Not my design. The critical dimensions for the tweeter housing are these: 185 mm (base width), 142. No power amp needed! This means the expensive capacitors for the midrange can be eliminated. These Revelator drivers are among the most diy-friendly drivers ever made. The sound is amazing. System sensitivity: 90-91 dB/2. 2006 and after some two years on the web, this Ellam XT turns out to be one of the most popular speakers on this website - and for good reasons: - fairly low cost due to the excellent and cheap R2604/832000 tweeter. Point of crossover: 580 Hz and 2700 Hz, LR2 and 1st order filter topology. The speaker is a 3-way unit built with a ScanSpeak tweeter and Faital pro PA woofer and midrange. Having a twin-bass setup, this is more than enough. The bass LCR circuit handles the peak building up at 100 Hz from the rising impedance due to bass cabinet tuning. TECHNICAL: The 3. The 8008 mid has an LCR on terminals smoothing the impedance peak at 45 Hz and a resistor by-passing C3 makes a 1st order roll-off for the mid-driver. The Jenzen NEXT (T25 version) can be realised from the Jenzen SEAS ER crossover without trouble. You can use the Ekta mkII cabinet by eliminating the 12MU midrange driver and midrange cabinet and make the front panel similar to Illuminator-71 seen from top. Having the 6" driver in a fairly There are two main features of the new TQWT-mkIII and DTQWT-mkIII constructions: New JA8008 HMQ driver and stepped baffle allowing a true LR2 filter to be implemented. NO SUCH THING EXIST. Read here about power handling. Here the EAR-861 description found at Needledoctor website: Push-pull power amplifier operating in pure Class A, enhanced triode mode. The not so easy way of making the Illuminator-4. I don't think so. I really wanted a horn for the midrange. Download driver specs: 10C77 - 15H52 - SS 9900. The excellent sandwich cones of previous HDS134 drivers (850488) are long time gone and it's time for making a substitute for this construction, thus the HDS-PPB version (838060) has been set up with ScanSpeak D2604/830000 tweeter. Above the fairly simple way to making the Illuminator-4. 8V, 1 metre distance. 8V, 1 meter. Click left image to view large. Right: Routing the outer midrange panel. We can get almost obsessed with midrange detail and treble balance. In that sense it's much harder to make a small speaker than a large 3- or 4-way. The SEAS T35C002 tweeter is noiw standard. Add 350 grams of sheeps wool to the midrange cabinet and disperse evenly. Dimensions: 22 x 32 x 100 cm, WxDxH (without feet). F or lack of better names, The Loudspeaker III is a scaled down version of my The Loudspeaker. Size matters and going from 75 cm 2 to 95 cm 2 does make a difference in mini-monitors. System sensitivity: 91 dB/2. With a proper 300B SET amp you can play these speakers for hours and hours without listening fatigue, a clear sign of low distortion and proper balancing of drivers. The midrange driver is also reduced to an 8" driver, but the compression 3-way speaker from 8" bass + 4" midrange + 1" dome. Besides Troels, there's: Jeff Bagby, Javad Shadzi, Curt Campbell and Jim Holtz, Paul Carmody, Danny Richie, and a few others. Right: Basic front panel seen from rear. Smooth frequency response from appropriate front panels allow simple crossovers and excellent sound. The MW16+19 combined make some 277 cm^2 membrane area, close to a 10" bass driver and it pays of in bass and not least upper-bass and lower midrange. And today we might substitute the NAD 3020 amplifier with the NAD D3020, the digital revival of the 3020 legend, and use almost any kind of source material. 3 uF/250V silber-golds (prototypes) used here are without the alu tube and only 17 mm diameter - and whatever you use, you shouldn't use caps with a diameter more than this, because there isn't room for much more. . SEAS-CENTER-EXCEL with W18NX003 midbass drivers. The 18H52-06-13 SDKA: The best 6" midrange I've ever had. See below. To my mind the U16RCY/P could well be placed in the EXCEL The cabinet is exactly the same as for Discovery-861 and by using a slotted port we save money on plastic ports. Hello Troels, Here is my feedback after building the Faital 3WC15 and after a few weeks of use. 5 W 08-NFA-01 "only" has some Xmax of +/-5. See images below. The W also features a little higher sensitivity compared to the X model. Studio 101 Crossover. Something may be art if enough people think it is. At display at the Munich High End show last year and finally ready for market Spendor BC1. CNO-4 is featuring a new 6" and 8" driver from SEAS, W18NX003 and W22NY003, an up-date of my beloved Nextel coated drivers, but here refined with new and improved magnet systems and titanium voice coil formers. Jenzen NEXT crossover follows a close-to-perfect LR2 topology. In many ways life gets easier when we make big speakers. Don't fasten, just let the "pillows" rest on braces. back to index. The actual 15H52 varies from the one shown on the PD in having an underhung voice coil. The text below is pretty much a copy-paste of the CNO-mkIII as the only difference is the extra midbass driver. 2009: The Ellam XT was made around Dec. For midrange I picked the 12W/8524G00 used in my mini-12W some time ago. Left: SPL from drivers at 2. The Spendor BC1 is basically a three-way system with points of crossover around 3 kHz and 13 kHz. Check ATR25 for details on damping. Thus, pairs of 18W/8434G00 and R2604/832000 tweeters were acquired from ScanSpeak. NOMEX 164 mkII. The Point75A&B describes a loudspeaker project utilising the same Scan Speak 18W/8535 bass driver as used in the 2. The original SEAS Kit 503 had a SEAS 1" 86H dome tweeter, here replaced by the ScanSpeak D3804, the ancestor of the current D3806/8200 used in my SP38 construction. 12cm Midrange 4ohm, Paper Cone, Neo Magnet. The Illuminator midranges and midwoofers are in every aspect unusual designs with the open construction, the extremely long linear excursion and patented under-hung SD-3 (Symmetrical Drive) neodymium Peerless HDS PPB 830860. Deep powerful bass - and that very special 300B midrange. Basics: 2½-way speaker in a 40 litre vented cabinet. The OBL-11 drivers, Eminence DeltaLite II 2515 and JA8008/TW034 + waveguide combo. Impedance: 8 Ohm. Perfect! I am currently testing on the Ekta a Jungson JA-99C + Gustard P26 preamp, 80 Watts still in class A. With my new GlowMaster KT88 amplifier I play lower level than usual and still retain all details. It ended up in the classic 3-way as midrange driver. Most small 5" drivers have relatively Midrange: Working from around 200 Hz the mid-driver really doesn't need high Xmax, thus Per Skaaning made me an 18H52-06-13-SDKA with underhung voice coil and +/- 3 mm excursion is more than enough to cope with even thunderous playback levels. Cabinets were made from 15 and 19 mm black MDF (HDF/Valchromat), 19 mm for top and bottom. To continue my speaker building hobby I’m posting a complete pair of Troels Gravesen’s “The Loudspeaker“ TL-1 which you can look into easily with a simple web search if you are not familiar. Both full range drivers. Explore DIY loudspeaker projects by Troels Gravesen, featuring detailed construction guides, measurements, and speaker-kit options. Damping material seen from rear. Simoon, Feb 6, 2023. Ports are 145 x Ø50 mm. Actually a long slotted port is better and it also provides structural benefits to the cabinets. Roll 10x20 cm acoustilux and insert in port. When you push the midrange cone it should move out again slowly. CABINET. It does sound significantly better, it is much smoother and clearer after the edge coating and the distortion I complained about initially is completely gone. "BC" stands for B extrene cone C elestion tweeter, according to Ken Grey, former Spendor employee. Faital-3WC-15_Xavier. Eminence DeltaLite II 2515, 15" bass driver is available from Thomann/Germany here. Set up boundaries for your router and route down some 15-17 mm. The 10F didn't work too low and had a high high-pass filter handing over most of the midrange to the 22W bass driver. Click heading or image to go to construction page. Feb 6, 2023 · Absolutely! There are a number of speaker designers, that design for the DIY community, that are the equal to many high end designers. The 300-400 Hz region gives us an idea about what system sensitivity we can expect from these drivers. With 10 litres volume and a port of 50 x 110 cm (diameter x length) we get a port tuning of 55 Hz. Peerless projects. CONCEPT SOUND. Impedance: 8 Ohms, minimum 4. Jenzen Illuminator crossover. With the new JA8008-HMQ driver the performance is further increased by a more Test Scan-Speak 5F/8422T01 and 10F/8414G10 full range mini drivers. SEAS_NEXT4. What does that mean, and why do some crossovers require that e. 3: Cut 2 pcs 18 x 112 cm and add to sides and bottom of compartment 3. 3-way speaker from 8" bass driver, 5" midrange driver and 1" ring-radiator tweeter, all drivers time-aligned. BACK TO INDEX. Dec 18, 2020 · The new W18NX003 woofer is a successor to the famous W18NX001 (E0042-08) from SEAS, and it was developed in cooperation with the famous Danish loudspeaker designer, Troels Gravesen. to a Sugden IA-4, not easy to beat But the challenge is won by the Ekta, more information in the midrange and bass that go lower with more nuances. They go well beyond 10 kHz. Description. g. However, tweeter section here has been given the full treat to reduce a little too much energy in the 6-8 kHz range, to lift level from 10-20 kHz and to further smooth roll-off towards Center speakers really do not have to play deep bass and the TL-CENTER may on paper do well down to around 50 Hz and 40Hz including assumed room-gain, but believe me, it can play bass. BACK TO TOP. This is not a cheap build. It is significantly smaller, 225 gross litre, and "only" featuring a 15" bass driver. Right: Due to the 25 mm thickness of the basic front panel we need to chamfer deep for the midrange driver to eliminate any acoustic resistance. It seems the simpler the crossover, the more fine-tuning it takes. System sensitivity: ~93dB/2. There won't be an all-digital version as it won't sound better than this FUSION-3. Upper part of mid and tweeter is fully up to you. Improve the bass and midrange improves is a common statement - and obviously the midrange doesn't get better, but having decent bass changes our perception of the midrange. Dimensions: 31 x 38. Cabinets can be made from 16-19 mm MDF or similar. CHOICES. Midrange low-pass and tweeter high-pass sections from passive crossover. It seems like most diy'ers start with a 6" 2-way making deep bass from 24-33 litre and an efficiency rarely exceeding 85 dB. Hello Troels, I have successfully completed the Jensen 1071 speakers based on your project. The JA8008-HMQ driver features a high mechanical Q (low damping) and a better match to the magnificent Eminence bass driver (s), thus enhanced transient response and low-level Section 3: Cut 2 pcs of 25 x 50 cm and do the same as for section 2, two layers on rear panel. After initial measurements, this crossover was simulated in LspCAD. Box simulation suggest something in the range of 6-10 litre volume making -3dB at 60 and 50 Hz respectively. In addition to this a little higher impedance making it ideal for a double-driver set-up for bass. 20-01-2021: NEXT-4 updated with new SEAS W18NX003 driver. B: Place piece of 25 x 65 cm at midrange bottom panel and down at rear panel, thus double layer on rear here. 6 grams cone of 80 cm^2. L2021 is a high-ohmic coil, DCR = 1. 0 Ohm @ 150 Hz. 9 mm compared to the +/- 10 mm of the X model. 5 uF will do and current e. These mineral filled PP cones have the ability to play seriously loud without sounding harsh, i. Jan 21, 2021 · It is one of the most linear midrange drivers I have ever had, which particularly on vocals bear fruit and to my ears it presents a deeper soundstage with a better portrayal of the recording room. There were only a few changes to the crossover and only to the low-pass section of the bass driver. Testing all driver rebates. And finally we have a 95 cm 2 cm cone area from a SEAS 5" unit. Dimensions: 90 x 42,5 x 30 cm, WxDxH. The cabinet is exactly the same as for Discovery-861 and by using a slotted port we save money on plastic ports. Here we have the latest addition to the range of Be domes, the SBAcoustics TW29BN. Feed them the best source material you have and they will deliver. For the time being at 205 EUR each. I'm more than pleased! Basics: 2½-way, 3-driver speaker. 8V/1 meter. Zero overall negative feedback. The Illuminator 71 can be made into a floorstander by extending the cabinet and lifting the bottom panel like seen in the Ekta mkII. I modified it to use the drivers I have in them. 1-2: Cut 8 pcs 35 x 50 cm and fold two like this: - and place in compartment 1 and 2. I have no idea why there aren't more speakers using horns. However, 1-1. 2020: ScanSpeak Ellipticor-A50 is a loudspeaker created to celebrate 50 years of service in speaker driver manufacturing. A rigid alu cone, working pistonic up to point of crossover and not least an exceptional high mechanical Q. Power requirements: 10 watt minimum. 2013: Ekta Grande started in 2007 and has maintained a steady interest among builders - and for good reasons. The 5-inch drivers, basic performance. First one was CNO-mkIII and icing of the cake will be a 3-way from 2 x W18 + W12 + T29. 8 volts, 1 meter. 250 watts peak. Basic simulation came very close to this, only L2041 and R1011 (as always) had to be adjusted by ear. Ellam FLEX 3W passive CROSSOVER, 4 ohms bass driver. Impedance: 4-8 Ohms, minimum 3 Ohms above 5 kHz. Category: Midrange Tags: Illuminator, Midrange. Some like it hot, creamy or crunchy - some don't. Sensitivity: 90 dB/2. See images above. It consist of a bass driver and midrange driver from Scanspeaks Reveleator series and tweeter from Scanspeaks Illuminator series. System sensitivity: NA. Add felt sheets to all internal panels except the (1) small area for the terminals , (2) rear panel behind bass driver, (3) front panel and (4) outside of midcab . This makes 185 at top and 215 at bottom. Hypex runs the whole speaker and provides bass low-pass filter and midrange high-pass filter. The PTT6. Section 5: Split the 150 grams sheeps wool supplied in two and stuff the midrange cabinet evenly. These are true upper midrange drivers with a high Fs and an extended frequency response profile. The two 18W drivers can throw quite some bass having a combined area similar to a ~9" driver. #7. The Bookshelf-3WC is also designed to provide a significant sound-pressure, thus we start with a powerful 8" bass driver. Not too bad, but don't expect earthquake performance from a 8. Dimensions: 65 x 37-39 x 25 cm, WxDxH. Excerpt from Viawave website: “Viawave Audio proudly introduces a true world first in the GRT-145; the technology of sealing the air gap between the ribbon and the poles of the magnets. Giving the ~91 dB sensitivity also an easy load for my 32 watt tube amp. QUATTRO mkII is the up-dated version of the original QUATTRO based on the JA8008 driver, here with the new JA8008-HMQ driver. System sensitivity: ~90 dB/2. The middriver comes with new rubber surround, optimised for better air-flow and termination of cone energy, underhung voice coil, 6 mm windings in a 13 mm gap. The thing is that describing sound just doesn't make sense. down to around 8-10 mm from the rebate edge. All drivers mounted and wires for crossover fine-tuning in place. Point of crossover: Default 80 Hz, 2nd order or your choice. Depth depends on your choice of front panel thickness. The mkI dates back to 2010 and with the experience gained since then it's time for an update with some modifications allowing a simpler crossover and a lower point of No, the NOMEX does not have the low-end weight of the ATS, but nevertheless a solid bass presentation and magnificent midrange and treble. The side panels of the midrange cabinet are optional. DRIVERS CROSSOVER WORKSHOP PICS CABINET HYPEX MEASUREMENTS SPEAKER-KIT CROSSOVER LAYOUT. Please do not ask what amplifiers will suit a given speaker. Feb. Allowing to utilize a 1st order crossover adds to the fidelity and correct timbre of all instruments," says Troels Gravesen. Crossover components are from Jantzen audio. Please do not ask the difference in sound from two speakers. Based on simulation, the 10RS350 will make F3 = 38 Hz from 45 litres and assuming 10% increase in volume from damping materials we should end up at F3 = 36 Hz, more than enough for our Click images to view large. Microsoft Word - Review - Troels Gravesen. 5 x 60 cm, WxDxH. Section 4: Cut 3 pcs 23 x 50 cm and fold like seen below and place at bottom of cabinet. Same thing. The curvature of the upper part of the side panels can been seen from the Illuminator-4 notes. The midbass is a small 8" driver fitted with a bextrene cone and an inverted rubber surround, in fact quite similar to the KEF B200, SP1039. Center pole piece is copper clad in Despite having a ScanSpeak bass driver, this construction is placed in the SEAS section due to the SEAS W15CY001 middriver and a later upgrade with an 8" SEAS alu driver. Midrange cabinet is filled with 350 grams sheeps' wool. The Jenzen Illuminator crossover follows as close as possible a LR2 topology. Such heavy excursion will impact midrange quality, but from a 2½-way from the 8 Ohms versions, we may be able to produce quite a soundstage nevertheless and a decent overall system sensitivity. 2 ohm. Left: Upper panel in place. The JA8008 and TW034 drivers are described in detail in the TQWT file, follow link here. C2021 is made from 3 x 22 uF in parallel. Any other tweeter will require a different Jensen 1071, built by Ziggy, Poland. 2017. New front panels have to be If we want something in the 30-45 Hz range add a subwoofer. Blue = W15CY001 (new), red = CA15RLY, green = W15LY001. Thank you for publishing your designs on the net, because the resulting sound is spectacular. Power handling: 600 watts. Jan 20, 2023 · Troels is a quite reputable DIY speaker builder from Denmark. Uses EL519 output tubes. 12MU/4731T00. As can be guessed from the crossover layout we only need 66 uF series capacitors for the midrange saving us some 150 EUR compared to most of my larger 3-/4-ways requiring 88 uF with the same 200 Hz point of crossover. Nov 1, 2021 · 11-01-2021: CNO-25-mkII updated with new SEAS W18NX003 driver. Based on feedback, the NOMEX-164 is one of the most popular speakers in my portfolio. Bass reflex for bass and aperiodic tuning for midrange driver. Basics: 3-driver speaker. Points of crossover are close to 200 Hz and 2,000 Hz. System sensitivity: 87 dB/2. 32 wpc stereo (bridgeable to 64 watts mono) into 4, 8, or 16 ohms. Start chamfering 45 deg. 22 liter volume, Fb = 37 Hz, port = 50 (ID) x 110 mm (cut to 110 mm length) TL floorstander for 8542/27TFFC. As can be seen from a 35 mm front panel, the driver hole chamfering becomes important, not least for the midrange. First time lacquer. Points of crossover: 700 and 2. A client brought in these B&W 802 s3 speakers for a possible upgrade of crossover. The formulas for calculating crossovers are based on the assumption that drivers have linear response (amplitude), linear impedance and linear phase. -it really is seriously cute and if you're gadget-happy, it's a treat like a Swiss army knife! Buy ScanSpeak 5F/8422T01 directly from ScanSpeak Online Store. Having the 8" helping the 6" midrange driver at the low end allows a very low point of crossover, thus all of the middle/upper bass and midrange is handled by these two drivers. 5 clone project. They are extremely sensitive. A 12" based system can do things none of today's 6" skinny runts can do. The depth of the chamfering is less important as long as they are more than 45 deg. Making the front panels. Additional information. Since 1970 speaker drivers have been produced under the ScanSpeak brand name and countless models, from economy drivers to some of the most sophisticated and expensive transducers the hifi market has seen, has been produced. After the large 4-way ATS speaker project I needed to do something really small! This year ScanSpeak launched two small mini drivers, one 2-inch and one 3½-inch. Green line is driver response, blue line room gain. The sound has a big authority in it, shaking the house and Basics: Bass module with 10" bass driver driven by Hypex FA251 plate-amp/DSP. The ATS-4 concept of having a 8" bass driver in a closed box handling the 100-200 Hz range works so well it simply had to be tried with other brands of drivers. A good front panel layout allows a simple crossover. Not surprisingly, Gravesen built another one of its stunning loudspeaker kits using the SEAS W18NX003, and the project was announced in parallel with the driver Fold 1 piece of 50 x 80 cm acoustilux and place above crossover. I hesitated for a long time between the Faital 15 and the Fusion 22, I finally chose the former, I slightly deviated from your instructions on three points: - I recessed the midrange speakers for Jan 24, 2020 · Troels Gravesen recently published a speaker design on his website that looks like it could be perfect for those with low-wattage tube and Class A transistor amplifiers. Front panel may be tilted ~10 o, if so, keep 200 mm depth of middle of cabinet. Actually they sound - and perform - quite similar to the alnico version. From a single 4 Ohms driver on a narrow baffle given its baffle step loss, I reckon we can manage a system sensitivity of 85 dB with some room-gain ScanSpeak R2604/832000 replaces Vifa XT25TG-30-04, thus the "XT" name remains. 3-way speaker from 9½" bass driver, 4½" midrange driver and 1" dome tweeter, either fabric or beryllium. Developed by Viawave Audio, this technology is called SRT - the sealed ribbon tweeter. Dimensions: 24 x 28 x 105 cm, WxDxH. 0 uF/800V is 18 mm in diameter. Click images to view large. System sensitivity: 90 dB/2. The Discovery-3-Way-Classic all started with the 10F/8414-G10 driver, and testing it for a small computer full-range speaker. The crossover is a simple LR2 design at 500Hz and 2400Hz, and the cabinet is a In a 3-way with separate cabinet for a 4-5" midrange driver, TLs are not that easy to implement without the cabinet being significant larger. Soundbar seen from front with center placement of Arylic amplifier. the midrange must be connected with "inverted polarity", where the plus wire must go to speaker driver minus? First of all, all speaker driver has a plus terminal and a minus terminal as seen on the terminals here, or on some speakers marked with a red dot. kc zi eu zv lj bj om gu aj uo