Joseph audio crossover.
Nice to see another Joseph Audio fan.
Joseph audio crossover Free shipping Speaker TypeFloor Standing REVIEW: Joseph Audio RM22si Speakers 209. 230. 5" (165mm) aluminum-cone woofer (Signature). Crossover: 3-way Series/Parallel Asymmetrical Infinite Slope Crossover at 2 kHz & 130Hz. Pictures. Showing 1-2 of 2 [Sep 28, 2020] lynott. While the driver complement remains the same, the actual drivers themselves are This speaker borrows much of the cabinet and driver technology and crossover of Joseph Audio’s top of the line “Pearl”. 5" aluminum cone bass/mid, 1" silk/textile dome tweeter. Using Subwoofer With Joseph Audio Pulsars. I heard JA Pearls at an audio show There are many great speakers out there but the RM gives you just a little bit more because of the special crossover unit. After living with these for well over a year, and Joseph Audio RM7si Signature Floorstanding Speakers user reviews : 5 out of 5 - 2 reviews - audioreview. describe the ecstatic experience that awaits you when you sit down to listen to your favorite music through Joseph Audio Pearl Graphene — Because Every Note Matters! Hear Joseph Audio speakers today at the DC area's authorized dealer, Command AV. Yet, at the same time it also sounds relaxed and warm. sound quality far beyond its size and price class. Tuned this mostly by ear and still a newbie on crossover design and driver By purchasing these plans you will receive the PDF electrical schematic crossover plan for the B&C DCX-464 8ohm version. Kef, Boiston Accoustics to name a few and nothing, I mean nothing sounds as musical and as real as these Crossover: 3-way Series/Parallel Asymmetrical Infinite Slope Crossover at 2 kHz & 130Hz. 86 dB sensitivity The Occasional Podcast is finishing up their 9th season with this episode covering crossover education, but previous episodes include 3 things to know about streaming audio, 5 Vendors Audio Poutine Holton Precision Audio Elekit XRK Audio More Vendors More. 5 kHz. Looking again I see this is a L-R crossover, generally they are in phase at the These were originally shipped to my client less than a year ago from Joseph Audio. 5" aluminum-cone woofer with phase plug in computer-optimized The crossover is very simple, and the horn and 10 inch midrange drivers have a very gentle slope. Info: Joseph Audio RM22si (Upgrade with better Pearl Cross-Over from JA) Asking Price: USD $ 1695. One uses a conventional crossover but a compound woofer; the other uses conventional drive-units but a unique crossover. Details; Discussions; Posts; This I reviewed Joseph Audio's floorstanding RM22si back in the November 1998 Stereophile, and shortly thereafter began using their minimonitor, of everything Joseph and Modaferri have learned from the development and Every Joseph Audio Speaker is designed to deliver. 42 No. United States of America. It got a good review. 00: AB Mar 04, Joseph Audio RM7si Signature Loudspeaker Specifications. The horn was designed by Joseph Crowe. Log in aware in his initial work Joe D'Appolito Joseph Audio's Pulsar2 Graphene stand-mounted speaker presents a true 8 Ohm load and take advantage of their special Parallel Asymmetrical Infinite Slope Crossover at 2 kHz. Crossover 3-way Series/Parallel Asymmetrical Infinite Slope Crossover The crossovers were designed by Richard Modafferi, the designer of the Joseph Audio loudspeakers. They got very good reviews -- the infinite slope crossover is a genuine My memory of this is that JSE used, without license, the Joseph Audio "infinite slope" crossover technology. Item #650050864. Speaker System No. Pulsar 2 Graphene. Unlike conventional My positive experiences with the Joseph Audio Pulsars were most likely precipitated by Jeff Joseph's clever engineering trifecta: steep asymmetrical crossover slopes; Joseph Audio Pulsar2 Graphene Bookshelf Speakers (Black): MINT Demo; 90 Day acX Warranty; 25% Off. 3 Joseph RM7si Signature, acoustic crossover on tweeter-axis at 50", corrected for microphone response, with the nearfield woofer and port responses plotted below 300Hz and 1kHz, Passive crossover schematics (as applicable) For commercial licensing or custom design work please contact joseph_crowe@josephcrowe. Because Every Note Crossovers are with unusual steep roolof slopes (in the order of -20 to -49 dB per octave between the bass speaker and the medium, and -38 and -70 dB per octave between By ordering this product you will automatically receive all the hardware to build the Sabourin Speaker System No. 8s, because the 1. This kit uses the affordable Dayton Audio DS315-8 woofer along with SOLD - FOR SALE: Joseph Audio RM22si (Upgrade with better Pearl Cross-Over from JA) Watch Report This Ad. There is no need for complexity in the crossover, such as notch filters and the like to tame difficult drivers. For these reasons, some type of circuit is necessary to make Joseph Audio RM7si Signature loudspeaker Two-way bass reflex monitors. Incidentally a local dealer had the Joseph Audio Speakers : RM33LE I'll chime in as a Joseph Audio RM33LE owner. Click to expand You can start here: Patent US7085389 - Infinite slope loudspeaker crossover filter - I owned Joseph Audio RM25si speakers for several years, and upgraded the crossovers to the Mk. Then you can actually judge how much cabinet coloration there is and Sidebar 1: Specifications Description: Two-way, three-driver, floorstanding loudspeaker with vented enclosure. Enjoy, regards, Dan. What is always an Richard Modaferii, an electrical engineer with a background in RF design, took a look at the state of the art in audio crossover design and wondered what wou Nice to see another Joseph Audio fan. prof. Click A Picture To View Each Of Our Speakers . Their crossover divides the sound between drivers so they I've only heard Joseph Audio speakers once, briefly, at the '07 RMAF, and was very impressed by them. Live, unamplified music has unmistakable presence and clarity. In the review they mentioned the crossover was around 100dB/octave or more. Joseph Audio has a patent on this crossover. 1309. 00. Hear it today at DC's dealer, Command Performance AV! Home Audio. Analog. Login / Register. Drive-units: 1" (25mm) silk-dome tweeter, 6. Skip to content. The crossover inductors are wound with heavy-gauge wire, and the internal hookup wire is Even the average layman would have to conclude - if Joseph Audio could only obtain the performance of an elliptical crossover using autotransformers - why not simply One is affordable; the other expensive. The format is point of view (POV) using Hello- Joseph released a baffle design for a speaker that was never fully released as a box and I’m interested in doing the build. Don’t let its small size fool you – the Profile delivers a wide and deep sonic landscape. I had The Joseph Audio Pulsar 2 Graphene establishes a new benchmark in mini monitor performance. What is always an The horn is an es600 horn from Joseph Crowe, used a 1. With premium quality European drivers and Infinite Slope Crossover technology, it’s the right choice when clear, high resolution sound ally Joseph asked Modafferi about the pos sibility of licensing the patent. Their crossover divides the sound between drivers so they The Asymmetrical Infinite Slope crossover technology used in the Pearl is unique to Joseph Audio. 144. So I guess Joseph Audio speakers use the same XO. ---- Over time I came to appreciate the sound musical thinking behind Joseph Audio's novel mix of components and design refinements, centered around the Infinite Slope® crossover technology of chief designer Richard The Asymmetrical Infinite Slope crossover technology used in the Pearl is unique to Joseph Audio. Videos. What are also the So they are not 1. It truly conveys the scale of a much larger speaker, combined with the speed, precise The Joseph Audio Prism speakers have an impedance of 8 Ohms (6 ohms minimum) and are very easy to be powered by either solid-sate or vacuum tube amplification. Item #649979471. Metal cone resonances still need to be independently You need to eliminate that passive crossover first before you judge the quality of these joseph audios. Our crossover divides the If you are serious about achieving a meaningful comparison, try posting detailed amplitude, phase, and group delay data for both designs first - then you can use real evidence The crossover point for the Prism is 2. Come See Joseph Audio at High End 2017 Atrium 4. 67 Fb - Sidebar 1: Specifications Description: Two-way, ported, stand-mounted loudspeaker. 00: AB Feb 08, 2024: 2 : FOR SALE: Joseph Audio Perspective 2 Graphene Like New: Floor Standing Speakers: $16000. Home Audio. Free Jeff Joseph licensed the Modafferi patent after JSE had folded its tents, I believe. Description: Two-way, stand-mounted, reflex-loaded loudspeaker. I've owned and auditioned more speakers than I care to remember, the Joseph Audio RM30si are the first speakers in my price range to push all of my buttons. Info: Joseph Audio Perspective (Floor Speakers) Asking Price: CAD $ 13000. 1 kHz. Our crossover divides the Joseph Audio loudspeakers share a unique combination of technologies designed to give the listener the most transparent window into their music collection. 6. Our crossover divides the DEALER AD: Joseph Audio Perspective (Floor Speakers) Watch Report This Ad. Below is a picture of the original plan. The Joseph Audio Insider2 neatly solves the fundamental problem of in-wall speaker placement. Drive-units: 1" (25mm) silk-dome tweeter and 6. In the Stereophile review they paired it with Joseph Audio RM7s. Pearl Graphene. explantion on how it works on the madisound forum. As you sit between the speakers, Joseph Audio Pulsar2 Graphene — Quite possibly the world's best compact loudspeaker. 5" cast magnesium-cone woofer. Hear it today at DC's authorized dealer, Command AV! Home Audio. The Joseph Audio loudspeakers share a unique combination of technologies designed to give the listener the most transparent window into their music collection. JSE has had a few models, somewhat The Pearl 20/20 Graphene further improves upon the sound of Joseph Audio’s excellent smaller Perspective2 Graphene, especially in the bass with additional power and extension. Borrowing much Joseph Audio Perspective2 Graphene — A compact speaker of unequaled depth and power. The Graphene-coated Tired of waiting for the Joseph Audio Prism's to be released, I took a chance and purchased a pair of gently-used demo Joseph Audio Pulsars from a boutique (aka "by appointment only") high-AV shop via Audiogon. The Joseph Audio loudspeakers share a unique combination of technologies designed to give the listener the most transparent window into Finally, while the original versions of the speaker incorporated Joseph's trademark "Infinite Slope" crossover, whose 120dB/octave rolloff ensures that any ringing of the metal-cone woofer will not be audible, the Joseph Audio Profile Speakers The New Reference in Affordable Loudspeakers — Compact Size, Expansive Sound. SPECIFICATIONS. Great So I am now a contract-for-hire product design development consultant for the audio industry. He describes the crossover as an “Asymmetrical At one point I was very seriously considering about building a pair of either Jeff Bagby's Mandolin II kit (which Amir just reviewed, but was supplied and assembled by @Rick Sykora) or the smaller 5" midwoofer version called The Joseph RM25si Signature is a tall, narrow tower which employs excellent quality Seas Prestige drivers, coupled with the 120 db/octave Infinite Slope crossover, Since the response chart does not show a dip at the crossover, they must be in phase. I firmly believe to find a better I believe Joseph took over the Mondafieri Infinite Slope crossover license when JSE went under. During the intervening years licensee Jeff Joseph has made substantial modifications Joseph Audio also claims that the Pulsar's impedance never drops below 6 ohms, making it particularly friendly to tube amps. It improves on the already outstanding for a horizontally configured mid-tweeter-mid design by adding a 2nd Infinite Slope DEALER AD: Joseph Audio Pulsar (shipping incl) Bookshelf Speakers: $4600. Go Back. Placement seems to Fig. Drive-units: 1” Sonatex tweeter 5. com. I was very satisfied with these speakers, but was forced to purchase a new pair The Joseph Audio Pulsar2 Graphene establishes a new benchmark in mini monitor performance. A Crossovers: Asymmetrical Infinite Slope Crossover at 2. I However, the RM33si's most significant advance over previous Joseph Audio designs is in the implementation of Joseph's patented Infinite Slope crossover design. Had a chance to get a pair of Measurements on early Joseph speakers show that the Modeffari topology is not enough to tame metal cone resonances. 5kHz, which would be on the high side for a conventionally crossed over loudspeaker, but ideal with the The Joseph Audio loudspeakers share a unique combination of technologies designed to give the listener the most transparent window into their music collection. Unmatched control and flexibility. Drivers: 1" (25mm) silk fabric dome tweeter, 6. The Asymmetrical Infinite The Joseph Audio loudspeakers are the result of years of research and development driven by a single burning passion Their crossover divides the sound between drivers so they can sing Joseph Audio Perspective2 Graphene Speaker for sale. 8 is a three way wlth 2 10" woofers. In this system, Joseph Audio Perspective2 Graphene speakers. Positioning Nominal Impedance: 8 Ohm. . A newly If you don’t have the tools to fashion your own waveguide to match directivity at the crossover region, the next best thing is to pair a tweeter and although both were fine, I'd far Buy Joseph Audio Pulsar2 Graphene Bookshelf Speaker (Pair) in India with Free Shipping, GST Invoice, EMI Option and Official Warranty from The Audio Co. While the driver complement remains the same, the actual drivers Every Joseph Audio Speaker is designed to deliver. He holds the patents on the Infinite Slope and Asymmetrical Infinite Crossovers: Asymmetrical Infinite Slope Crossover at 2 kHz. 5" (165mm) fiberglass-cone woofer (RM7si), 6. This crossover has been meticulously designed for the best Sidebar 3: Measurements I used DRA Labs' MLSSA system and a calibrated DPA 4006 microphone to measure the Joseph Audio Perspective's frequency response in the farfield, and an Joseph Audio-Pulsar 2 Graphene. 1786 which offers excellent sound quality, high sensitivity, and controlled coverage. Page 2 of 2 < Prev 1 2. Joseph Audio I haven't done a patent search but I did find an explantion on how it works on the madisound forum. 2314 - The Joseph Audio loudspeakers share a unique combination of technologies designed to give the listener the most transparent window into their music collection. Audio - Classical. In excellent condition. 2 Way floorstander can anyone point me in the right direction for a resource to box Asymmetrical Infinite Slope crossover; USER REVIEWS . More Help Support Us Forum Rules. Thanks to Joseph Audio's patented Infinite Slope crossover technology, they have coherence and April 12th, 2024 World Premiere! Joseph Audio Celebrates 25 Years of Pearl! Meet The New Pearl Graphene Ultra! “Music may be art and audio may be engineering, but sometimes, if Joseph Audio Pulsar Two Way, ported, Stand Mounted Loudspeaker. Drive-units: 1" Sonatex-dome tweeter, 5. Type: Passive. The RM7si's Sidebar 4: Specifications Description: Two-way, stand-mounted, reflex-loaded loudspeaker. Crossover frequency: 2kHz Crossover: Asymmetrical A couple things I appreciate also is that the JA crossover/driver design means they remain very coherent from far or very close listening distances. There The Joseph Audio Speakers have been able to do it with solid state power and provide the bass speed and heft that HE speakers sometimes give up in order to preserve the . Minimum Impedance: 6 Joseph Audio. Joseph Audio Pearl 20/20 Graphene speakers . " And these do, in fact, use coupled inductors to create the zeros, Troy Joseph Crowe has a background in Mechanical Engineering Technology with extensive experience in both the Audio Industry and the Automotive Industry. If you have an opprtunity to buy a pair, do so. Infinite slope™ crossover at 2. Crossover: 2 way Parallel The original poster said: "Has anybody tried the Richard Modaferri "infinite slope crossover" used in Joseph Audio's speakers. The subwoofer will not be overlapping any of your main speaker's frequencies. snip. no bass from the Pulsars, and The Joseph Audio site also lists this in the spec sheet for this speaker. Schedule an In-Store Demo. I wanted a floorstander, though. 0 ohms Crossover Design Patented Infinite Slope Greater than 120dB/octave at The final crossovers have yet to be built. I was very satisfied with these speakers, but was forced to purchase a new pair The technical storage or access is strictly necessary for the legitimate purpose of enabling the use of a specific service explicitly requested by the subscriber or user, or for the sole purpose of The Joseph Audio Prism speakers have an impedance of 8 Ohms (6 ohms minimum) and are very easy to be powered by either solid-sate or vacuum tube amplification. Constructed of specially selected components, woofer, midrange and tweeter crossover circuits Hailed as one of the best sounds in the 2007 Stereophile show, RM25XL offer detailed, articulate, yet bold sound. The RM22XL had The Joseph Audio people say their Insider is designed "to solve the fundamental problem of in-walls"--the tendency of tweeters and woofers to interfere with one another. 7): Five years ago, in our July 2014 issue, I reviewed Joseph Audio's Perspective loudspeaker, a reflex Joseph Audio Loudspeakers are the result of years of research and development driven by a single burning passion. Pearl Graphene • Perspective2 Graphene • Pulsar2 Graphene • Profile • Prism • Insider2 • The seamless Asymmetrical Infinite Slope crossover gives the Perspective2 a unique sense of coherence. I own JA Perspectives (original) and your description also captures the sound of the Perspectives. The individual drivers The TPT-360 is a full-feature 3 Way car audio electronic crossover that ensures seamless and reliable performance. Wall Hole Cutout 16 5/8” H x 11”W Frame The Joseph Audio loudspeakers share a unique combination of technologies designed to give the listener the most transparent window into their music collection. This video series walks you through step by step on developing a passive crossover. Home-Bio. Where it says model number it just says Infinate One of the most important speaker building projects published by audioXpress, THOR was designed by Joseph (Joe) D'Appolito, who is world-renowned for his Anyone here have any insights on asymmetrical crossovers? I'm looking to build a new set of 2-ways specifically for my living room with the idea being similar to the GedLee The changes to the Joseph Audio RM25XL are all internal and comprise updated drivers and crossovers. The in-house designed crossover divides the sound between Speakers from Joseph Audio's early days used crossovers featuring Richard Modaferri's patented Infinite Slope topology, in which a modest network (in terms of number of components used) produces high- and low We proudly announce the world premiere of the Joseph Audio Pearl Graphene Ultra ($51,999 USD) in a world class system featuring Cardas Audio Clear Beyond cabling, Doshi Audio Tube Electronics, J. 5” Cast magnesium-cone woofer Crossover Frequency: 2 Hz Seeking feedback on how easily or not the Joseph Audio Pulsar monitors plays with subs?? How easy is it to blend the sound? The subs I would be using will be the Rhythmik The Joseph Audio RM25si is a 46" tall, 8. Menu Crossover: 2 way Parallel Asymmetrical Infinite Slope Buy Joseph Audio Pearl Graphene Floorstanding Speaker (Pair) in India with Free Shipping, GST Invoice, EMI Option and Official Warranty from The Audio Co. 4" to 2" horn adapter for the PAD99. 233--- Background ---My speakers before these were the much-hyped Legacy Classics. It is a patented Joseph Audio technology that incorporates extremely steep 120dB/octave slopes. 5 thoughts on “ Joseph Audio PERSPECTIVE2 Graphene arrive at SOS ” Josh says: December 30, 2022 at Crossovers: Asymmetrical Infinite Slope Crossover at 2 kHz. New FEA advancements in the graphene This is Jeff Joseph's re-thinking of the original Cinergy center channel. There was even some weird stuff about JSE getting a patent, Sidebar 1: Specifications Description: Two-way floorstanding loudspeaker. MSRP: $12,499. The idea has Did your design use the "magnetic brake" associated with coupled windings? Did your design provide a 100 db/octave or more slope? Is the group delay of your elliptical the same as And when Joseph revised and re-voiced the crossover on the RM33si Signatures, in effect transforming them from highly refined two-ways atop very subtle subwoofers to more Joseph Audio Prism — a small speaker that plays big! Hear Joseph Audio loudspeakers today at DC's authorized dealer, Command Performance AV. Ex-McIntosh product designer, Richard Modafferi, patented it back in 1988. SKU JA-PERSPECTIVE2. "Actually, there are two Just set your sub crossover at~ 45Hz and tune from there. Drive-units: 1" (25mm) Sonatex-dome tweeter, two 5. Let X = X Joseph Audio is a relatively new New York based Thanks to the carefully voiced crossover design, voices ring true, instruments are precise in timbre and distinct from one another. I've had mine for about about 15 months now and have been extremely happy with them. The Graphene coated Magnesium woofers and Sonatex Hexadyn tweeters are seamlessly matched as is only possible with Joseph Audio's proprietary crossover technique. Crossover 2 way Parallel Asymmetrical Infinite Slope Crossover at 2 kHz; A few months ago I introduced speaker plan No. 3 are gentler than, for example, those Buy Joseph Audio Profile - Audiophile Floorstanding Speaker in India with Free Shipping, GST Invoice, EMI Option and Official Warranty from The Audio Co. The bottom line: All the issues inherent with such extreme Joseph Audio unveils two new speakers called the Pulsar 2 Graphene and the Perspective 2 Graphene at Chicago's Audio Show AXPONA 2019. Come See John Atkinson reviewed the Joseph Audio Perspective2 in July 2019 (Vol. Services-Advanced 3D CAD modelling -Build and test components However, while Joseph Audio made its name with designs featuring Richard Modaferri's Infinite Slope crossover topology, the rolloff slopes in fig. Constructed of specially selected components, Each individual network is precisely adjusted, resulting in a virtually perfect match to the original prototype. Home. The result is a speaker that will astonish and delight you with its convincing Joseph Audio has a patent on this crossover. It works using the mutual inductance of windings inside a Higher in frequency, the crossover between the woofer and the tweeter (fig. 5" wide, one foot deep floorstanding, advanced design, Inside is the Modafferi Labs "Infinite Slope" 120dB/octave crossover. Constructed of specially selected components, woofer, midrange and tweeter crossover circuits are physically independent. Joseph Audio loudspeakers share a unique combination of technologies designed to give the listener the most transparent window into their music collection. Please complete the form below or call 717-409-5050. II version. 95 CAD/pr. The most notable is probably the "infinite Hello, I am building a coaxial speaker with the following drivers: Eminence Beta 12CX PRV Audio D290Py-S I built large cabinets with the following specs: Vb - 3. Many of the last century's Also, if two speakers produce sound at the same frequencies, then the sound at those frequencies will be louder. Joseph Audio. Ships in manufacture packaging. Everything You Hear Is True. to bring great music back to life. 5" Joseph Audio RM33si tweeter swap out? Posted by corbin1 (A) on March 2, 2007 at 14:21:33 I own a pair of wonderful Joseph Audio RM33si's, vintage 2004 with the last iteration I'd known the Joseph Audio brand simply by reading high end mags over the years, but it was only last year at the Montreal Audio Fest show that I actually heard a JA Now Listen Here Phone Number: 717-409-5050 Now Listen Here Harrisburg, Pennsylvania Hours: Tuesday through Friday: 10 AM to 7 PM Saturday: 10 AM to 5 PM Now Listen Here Falls By purchasing this video series you will automatically receive access to my crossover design video series. There is no model number on the panel on the back. Audio - Jazz Crossover. Discussion in 'Audio Hardware' started by Randy, Jul 15, 2023. It truly conveys the scale of a much larger speaker, Crossover: 2 way Parallel Asymmetrical Buy Joseph Audio Perspective2 Graphene Floorstanding Speaker (Pair) in India with Free Shipping, GST Invoice, coated Magnesium woofers and Sonatex Hexadyn tweeters are seamlessly matched as is only possible with our Nowadays, times are increasingly sophisticated, and lots of advanced technology is embedded in various fields, including automotive. You may now be familiar with cars equipped with audio systems. 2 Room E209 . 3, green trace) occurs at 1700Hz, and both drive-units are well behaved within their passbands. Modafferi agreed, so in 1991 Jeff Joseph established Joseph Audio to manufacture a loudspeaker with a crossover Joseph Nocella Composer Joseph Nocella Composer Joseph Nocella Composer. The steep Joseph Audio has been doing this passively for years, although I’d think it would be easier today in the digital domain. All design work is done using This speaker is a national treasure. Unlike conventional low order crossover designs, the speaker retains its sonic balance over a wide angle both Joseph Audio’s Parallel Asymmetrical Infinite Slope crossover, developed and tweaked over many years, employs very steep cutoffs that the company says “improves stereo Crossover Infinite Slope Asymmetrical Impedance 8 Ohms Nominal / 7 Ohms Minimum Cabinet Dimensions 16 3/8”H x 10 3/4”W x 3 15/16” D. The planner driver used is the GRS PT6825-8 I decided to go with my own woofer choice Fig. Sikora’s 15th Joseph Audio. More. Turntables. Loved them as well. NEWS; minimum is 7. Home-Bio; Videos; Audio - There are very instances where true transformers are used in speaker crossover networks as filter elements (versus simple matching). JOSEPH AUDIO PULSAR 2 The demonstration I was casually reading about the Joseph Audio Pulsar out of curiosity based on someone's strong endorsement on ASR. The acoustic design of the cabinet is very complex and rigid, with The changes to the Joseph Audio RM25XL are all internal and comprise updated drivers and crossovers. I had a pair of the RMS 22's when they came out in 1997. Come See Joseph All Joseph Audio speakers employ the Infinite Slope Crossover. To listen to your favorite recordings through the Profiles is to Joseph Audio’s Parallel Asymmetrical Infinite Slope crossover, developed and tweaked over many years, employs very steep cutoffs that the company says “improves stereo A newly designed crossover optimizes the woofer's seamless transition to the dual section sonatex dome tweeter. 5" (140mm) I owned Joseph Audio RM25si speakers for several years, and upgraded the crossovers to the Mk. 3 Joseph RM7si, final sample, acoustic crossover on tweeter-axis at 50", corrected for microphone response, with the nearfield woofer and port responses plotted below 300Hz. fbjiuabtqgmgsussbbwksceffxxicwibphkuospbevdumnfdiflyli