# agentsite-static-version=4bfb9e8c-7c53-47a7-9e4b-e33dc452fff8 # janszenaudio.com > AI-optimized mirror of janszenaudio.com containing 92 pages totalling 58,727 words of clean markdown content, structured data, and semantic HTML. Original source: https://janszenaudio.com. Last updated: 2026-10-14T22:08:40.404Z. Each page is available as HTML (with JSON-LD structured data) and Markdown (text-only, ideal for LLMs and RAG). ## Homepage - [JansZen Audio](/content/site-root.html): Home audio loudspeakers with flawless realism, seamless electrostatic / dynamic integration, and deep, impactful bass -- the best of all worlds for music lovers and audiophiles, since 1955 (3,328 words) ## Articles & Blog Posts - [pages/back-tilt-for-the-valentina/index.html](/content/pages/back-tilt-for-the-valentina/index.html) (14 words) - [Products Tagged "Stands" - JansZenAudio](/content/collections/all/stands/index.html) (33 words) - [Passive Loudspeakers Tagged "standmounted" - JansZenAudio](/content/collections/standmount-speakers/standmounted/index.html) (18 words) - [Videos - JansZenAudio](/content/pages/videos/index.html): JansZen profile produced by the local newspaper, The Columbus Dispatch, 2015 Show report, produced by Moiz Audio, High End Munich, 2014 Show report produced by AVShowrooms, Capital Audiofest, 2013 Show report produced by AVShowrooms, the AXPONA. 2013 (54 words) - [Thanks for voting - JansZenAudio](/content/pages/thanks-for-voting/index.html): If you have any comments or suggestions, please contact us here. (64 words) - [Used and Demo Speakers, Active - JansZenAudio](/content/pages/copy-of-used-and-demo-speakers-active-1/index.html): How it happens Sometimes an owner trades up, or a set of speakers has done its job, either at audio shows, in our offices, or with reviewers, or a new version has come out and made it time to sell the demo of the earlier version. Pricing We use a spreadsheet to strictly and consistently calculate a price based on the o (149 words) - [Comparisons to Other Speakers - JansZenAudio](/content/pages/comparisons-to-other-speakers/index.html): I should probably write a compare and contrast about Magnepans sometime, which are magnetostatic (a.k.a., isodynamic, quasi-ribbon, or planar magnetic), rather than electrostatic. Although both are planar, the balance of attributes is different. In short, where JansZens provide a wider frequency spectrum, a higher prop (98 words) - [Used and Demo - JansZenAudio](/content/collections/used-and-demo/index.html): Factory reconditioned speakers in great condition with full warranty (43 words) - [Accessories - JansZenAudio](/content/pages/accessories/index.html): Please have a look at the selection of accessories that are well matched to our speakers. These include vibration isolators, cables, and stands. (24 words) - [Passive Loudspeakers Tagged "speaker" - JansZenAudio](/content/collections/standmount-speakers/speaker/index.html) (54 words) - [collections/all/products/nine-five/index.html](/content/collections/all/products/nine-five/index.html) (1,138 words) - [Specs -- Carmelita Passive - JansZenAudio](/content/pages/specs-carmelita-passive/index.html): Frequency response -- 30 Hz - 40 kHz +/- 3 dB on axis (in room) Sensitivity -- 85 dB/1W/1m Power handling -- 40W - 400W RMS/ch/8 Ohm recommended; higher than 400W risks damage; 120W nominal for max steady state SPL; 240W for full headroom for transients Impedance -- 8 Ohms nominal (4 Ohms minimum at low bass frequencie (809 words) - [Products Tagged "standmounted" - JansZenAudio](/content/collections/all/standmounted/index.html) (14 words) - [Active Loudspeakers Tagged "speaker" - JansZenAudio](/content/collections/floor-standing-loudspeakers/speaker/index.html): Active loudspeakers generally provide ideal amplification and eliminate speaker cables,  Ours do this and more. 1) Our active speakers are bi-amplified. There are three main benefits to having separate amplifiers for the electrostatics and the woofers: A) The amps aren't asked to superimpose treble and bass, or to prov Tagged "speaker". (241 words) - [collections/all/products/carmelita-active/index.html](/content/collections/all/products/carmelita-active/index.html) (553 words) - [Active Loudspeakers Tagged "standmounted" - JansZenAudio](/content/collections/floor-standing-loudspeakers/standmounted/index.html): Active loudspeakers generally provide ideal amplification and eliminate speaker cables,  Ours do this and more. 1) Our active speakers are bi-amplified. There are three main benefits to having separate amplifiers for the electrostatics and the woofers: A) The amps aren't asked to superimpose treble and bass, or to prov Tagged "standmounted". (239 words) - [collections/all/products/valentina-p8-passive/index.html](/content/collections/all/products/valentina-p8-passive/index.html) (437 words) - [Active Loudspeakers Tagged "floorstanding" - JansZenAudio](/content/collections/floor-standing-loudspeakers/floorstanding/index.html): Active loudspeakers generally provide ideal amplification and eliminate speaker cables,  Ours do this and more. 1) Our active speakers are bi-amplified. There are three main benefits to having separate amplifiers for the electrostatics and the woofers: A) The amps aren't asked to superimpose treble and bass, or to prov Tagged "floorstanding". (239 words) - [Active Loudspeakers Tagged "active" - JansZenAudio](/content/collections/floor-standing-loudspeakers/active/index.html): Active loudspeakers generally provide ideal amplification and eliminate speaker cables,  Ours do this and more. 1) Our active speakers are bi-amplified. There are three main benefits to having separate amplifiers for the electrostatics and the woofers: A) The amps aren't asked to superimpose treble and bass, or to prov Tagged "active". (249 words) - [Technology - JansZenAudio](/content/pages/technology/index.html): In the early 1950's, Arthur A. Janszen, my father, pioneered the first practical electrostatic speaker. In the process, he happened to be introducing the first high fidelity tweeter to the world. It might seem incredible, but with only one exception, after all these years, electrostatic tweeters are still the highest i (182 words) - [collections/all/products/loudspeaker-stands/index.html](/content/collections/all/products/loudspeaker-stands/index.html) (153 words) - [News - JansZenAudio](/content/blogs/news/index.html) (35 words) - [What makes JansZen electrostatics better? - JansZenAudio](/content/pages/what-makes-janszen-electrostatics-better/index.html): Potential drawbacks that JansZens don't have Over the last 35 years or so, a number of other electrostatic speaker companies have put products into production. All demonstrate one and generally at least a few of the drawbacks that JansZen speakers do not have. Here's the list, complete to the best of our knowledge: dip (1,038 words) - [Passive Loudspeakers Tagged "Passive" - JansZenAudio](/content/collections/standmount-speakers/passive/index.html) (7 words) - [Nine.Five - JansZenAudio](/content/products/nine-five/index.html): The brand new JansZen Nine.Five loudspeaker is modeled after Arthur A. Janszen's famed KLH Nine, but modernized with a freshened look and vastly improved performance and practicality. The model name is still somewhat up in the air, but may remain Nine.Five , which is meant honor the KLH Nine while implying that there a (1,135 words) - [collections/all/products/loudspeaker-cables/index.html](/content/collections/all/products/loudspeaker-cables/index.html) (1,455 words) - [collections/all/products/valentina-a8-active-biamplified/index.html](/content/collections/all/products/valentina-a8-active-biamplified/index.html) (1,026 words) - [Privacy - JansZenAudio](/content/pages/privacy/index.html): Privacy Policy Protecting your private information is our priority. This Statement of Privacy applies to https://janszenaudio.com and Janszen Loudspeaker, Ltd. and governs data collection and usage. For the purposes of this Privacy Policy, unless otherwise noted, all references to Janszen Loudspeaker, Ltd. include http (1,315 words) - [jansZen Floorstander Tilt Settings - JansZenAudio](/content/pages/janszen-floorstander-setup/index.html): Most standard speakers have wide dispersion, so back-tilt hardly matters, and toe-in adjustment mainly affects the speaker's interaction with its near side wall, rather than the tonality of the direct sound.  Getting the very smoothest and most extended frequency response from JansZen Valentina and Theoretica Martina4B (880 words) - [KLH Nine - JansZenAudio](/content/pages/klh-nine/index.html): The KLH Nine is the superb sounding and history making, full-range electrostatic loudspeaker that Arthur A. Janszen (AAJ) created at JansZen Laboratory and put into field tests in 1957. This design was then taken on by KLH and put into production at the end of the 1950's, with AAJ as V.P. Engineering. The KLH Nine was (1,377 words) - [collections/all/products/carmelita/index.html](/content/collections/all/products/carmelita/index.html) (415 words) - [Valentina A8 (Active) - JansZenAudio](/content/collections/floor-standing-loudspeakers/products/valentina-a8-active-biamplified/index.html): The Valentina A8 is a substantial upgrade to the original Valentina Active. If you've already read about or heard the original, what's new in the sound is Deeper bass Stronger impact Louder playback Sharper imaging Wider soundstaging There's also much enhanced functionality that includes Five independent inputs -- thre (1,026 words) - [Show Reports - JansZenAudio](/content/pages/audio-shows/index.html): Carmelita Audioholics, AXPONA 2016, Carmelita Active Valentina The Absolute Sound, 2nd of the Top Ten Inspirational Systems, Florida Audio Expo 2020, Valentina A8 (Mark II version of Valentina Active) ​Part Time Audiophile. 2nd entry on page. Florida Audio Expo 2020. Valentina A8 Enjoy the Music. 4th entry on page. Cap (263 words) - [Carmelita Active - JansZenAudio](/content/collections/floor-standing-loudspeakers/products/carmelita-active/index.html): The Carmelita Active lets you pare your system down to its essentials, while experiencing electrostatic clarity and neutrality, right along with maximum bass depth and punch. The remote control, built-in bi-amplification, DAC, automatic input selection, and high input sensitivity let you eliminate most of the equipment (534 words) - [Specs -- Valentina A8 - JansZenAudio](/content/pages/specs-valentina-a8/index.html): Frequency response, on axis, ±3 dB 30 Hz - 20 kHz in medium to large rooms 20 Hz - 20 kHz in small rooms Maximum continuous SPL from pair at sweet spot 112 dB in small room at 8’ distance [2.5m] 108 dB in medium to large room at 13' [4m] Peak transient SPL at least 6 dB higher Dispersion pattern: Unipolar: enclosed cab (957 words) - [products/carmelita-active-demo-cherry/index.html](/content/products/carmelita-active-demo-cherry/index.html) (3,328 words) - [Equipment Recommendations - JansZenAudio](/content/pages/equipment-recommendations/index.html): Amplifiers We've tested and found several amplifiers that perform especially well with JansZen loudspeakers, and comport nicely with our tenet that transparency is essential to reliving the recorded performance, yet these still allow for variations in taste. Bear in mind that the sensitivity of the Carmelitas is about (873 words) - [Products - JansZenAudio](/content/collections/all/index.html) (38 words) - [Products Tagged "speaker" - JansZenAudio](/content/collections/all/speaker/index.html) (17 words) - [Specs -- Valentina P8 - JansZenAudio](/content/pages/specs-valentina-p8/index.html): Frequency response -- 30 Hz - 20 kHz +/- 3 dB on axis (in room) Sensitivity -- 87 dB/1W/1m minimum Power handling -- 40W - 400W RMS/ch/8 Ohm recommended; higher than 400W risks damage; 120W nominal for max steady state SPL; 240W for full headroom for transients Impedance -- 6 Ohms nominal, 4 Ohms minimum Peak SPL -- 10 (916 words) - [products/carmelita-passive-demo-maple/index.html](/content/products/carmelita-passive-demo-maple/index.html) (3,328 words) - [Specs -- Carmelita Active - JansZenAudio](/content/pages/specs-carmelita-active/index.html): Biamplified with electronic crossover and EQ Frequency response -- 30 Hz - 40 kHz +/- 3 dB on axis (in room) Peak SPL -- 105 dB (pair playing music at 4 m [13'] in mid-sized room -- 4.5 m x 7.3 m x 3.0 m (15' x 24' x 10') Fully enclosed, not dipoles, makes placement easy Listening area Full spectrum 2 m wide @ 4 m (6.5 (761 words) - [Products Tagged "Cables" - JansZenAudio](/content/collections/all/cables/index.html) (33 words) - [Updates and upgrades - JansZenAudio](/content/pages/updates-and-upgrades/index.html): Owners of the original Carmelita (aka zA1.1) and Valentina (aka zA2.1) can have their pairs updated with new woofers or electronics, or upgraded by converting them from passive to active) or some combination. In the process, the speakers will be thoroughly evaluated, and any components that require attention will be se (815 words) - [Carmelita Passive - JansZenAudio](/content/collections/standmount-speakers/products/carmelita/index.html): The Carmelita Passive is our stand mounted model for playing music with external amplifiers. It's available in three figured veneers: maple, cherry, and walnut. Stands are optional. They can support up to 135 lbs, [60 kg], have a glass base and powder coated post and top plate. They are available as stand-alone units t (417 words) - [Products Tagged "active" - JansZenAudio](/content/collections/all/active/index.html) (33 words) - [Valentina P8 (Passive) - JansZenAudio](/content/products/valentina-p8-passive/index.html): The Valentina P8 is a substantial upgrade to the original Valentina Passive. Whatever you may have read about the original, these add deeper bass, stronger impact, louder playback, sharper imaging, and wider soundstaging. These loudspeakers feature dual electrostatic panels with controlled dispersion that maximizes the (437 words) - [Products Tagged "floorstanding" - JansZenAudio](/content/collections/all/floorstanding/index.html) (17 words) - [airLayer Operation - JansZenAudio](/content/pages/airlayer-operation/index.html): The airLayer comprises high grade, silk dome (Carmelita) or silk ring-dome (Valentina) tweeters mounted to the outboard side of each speaker. Their sound strikes and reflects from each speaker's near side wall and diffuses about the room.This was initially an option, but everyone ordered the speakers with it, so it was (482 words) - [Products Tagged "Passive" - JansZenAudio](/content/collections/all/passive/index.html) (5 words) - [Brian's review - JansZenAudio](/content/pages/brians-review/index.html): Posted by Brian H., November 2017 to a cordial email group with about 8 members: Hi everyone, I guess it's about time I give a review of my setup.  The entire system has about 300 hours on it and I'm on the finishing touches to the room. For those that don't know my setup consists of the following: Sony Modwright HAPZ1 (694 words) - [DIY KLH Nine Diagnostics and Repair - JansZenAudio](/content/pages/diy-and-vintage-diagnostics/index.html): I aim to be adding information here from time to time about how to do some basic diagnostics and servicing of the KLH Nine. Hum There are two cases where one might hear hum due to a speaker problem. One affects the entire speaker, and the other only smaller area. Single or small number of woofers: If the hum is caused (676 words) - [Search - JansZenAudio](/content/search/index.html): Home audio loudspeakers with flawless realism, seamless electrostatic / dynamic integration, and deep, impactful bass -- the best of all worlds for music lovers and audiophiles, since 1955 (57 words) - [Active Loudspeakers - JansZenAudio](/content/collections/floor-standing-loudspeakers/index.html): Active loudspeakers generally provide ideal amplification and eliminate speaker cables,  Ours do this and more. 1) Our active speakers are bi-amplified. There are three main benefits to having separate amplifiers for the electrostatics and the woofers: A) The amps aren't asked to superimpose treble and bass, or to prov (242 words) - [What makes electrostatics better? - JansZenAudio](/content/pages/what-makes-electrostatics-better/index.html): We'll be referring to electrostatic speakers as ESLs or stats, similar to saying dynamics for cone speakers. Quick comparison between dynamics and stats: 1) Stats use electrostatic force to vibrate a nearly weightless membrane. Dynamics use electromagnetic force to vibrate a cone. 2) The force on a stat's membrane is s (503 words) - [DIY Vintage Janszen Diagnostics and Repair - JansZenAudio](/content/pages/diy-vintage-janszen-diagnostics-and-repair/index.html): The Z-N00 series: Other than the number of tweeters, the Z-600 schematic should match up. You won't be able to get an accurate read on the bias voltage without an electrostatic field meter, though. Regular meters load it down, but a regular meter will at least give you a sense of whether it is working at all, and gener (352 words) - [Used and Demo Speakers - JansZenAudio](/content/pages/used-speakers/index.html): How it happens Sometimes an owner trades up, or a set of speakers has done its job, either at audio shows, in our offices, or with reviewers, or a new version has come out and made it time to sell the demo of the earlier version. Pricing We use a spreadsheet to strictly and consistently calculate a price based on the o (125 words) - [Loudspeaker Stands - JansZenAudio](/content/products/loudspeaker-stands/index.html): These stands have a thick, tempered glass base, hollow steel support post that can be filled with granular material for additional mass and damping, and a heavy metal top plate with soft pads for traction and loudspeaker finish protection. The bottoms of the bases are painted black, which is an attractive look. The met (144 words) - [Tropical Service - JansZenAudio](/content/pages/tropical-service/index.html): As anyone who lives in the tropics will attest, a tropical environment is a challenge for electrostatic speakers, as for any high voltage apparatus, even including the mains power grid.   Right off the bat, because of this, I have to say that I'm sorry that we can't warranty our speakers for the usual five years in the (293 words) - [Why lightness matters - JansZenAudio](/content/pages/loudspeaker-dont-make-sound-the-same-way-musical-instruments-do.html): The main reason lightness matters is because it gives an electrostatic diaphragm zero resistance to motion, so the sound happens exactly when the amplifier signal happens. A conventional loudspeaker's diaphragm's weight causes a delay before it gets moving, and this includes planar magnetics that have metal deposited o (276 words) - [Passive Loudspeakers - JansZenAudio](/content/collections/standmount-speakers/index.html) (32 words) - [FAQ - JansZenAudio](/content/pages/faq/index.html): Do you provide International delivery? We sell and ship directly worldwide. We will generally handle customs and tax, but some countries have additional challenges that have to be solved on a case-by-case basis.  How do I track my order? We'll make sure that the purchaser gets tracking information for any shipment. We' (467 words) - [Software - JansZenAudio](/content/pages/software/index.html): Hypex Filter Designer (HFD) This is PC-only software for setting all the parameters of the Hypex amplifiers and DSP. It includes a very easy to use, graphically oriented filter development application. You can download HFD v4.95 and the documentation for it from here. Note: It is possible to get into trouble with this (324 words) - [Conventional loudspeakers - JansZenAudio](/content/pages/whats-so-wrong-with-conventional-loudspeakers/index.html):     Conventional loudspeakers have two Achilles' heels compared to electrostatic loudspeakers. One is the diaphragm weight, which ranges from heavy to very heavy. Secondly, making that weight vibrate requires a complex system of interacting, non-linear mechanisms. An example is shown to the left, but the basic principl (130 words) - [Barney's letter - JansZenAudio](/content/pages/barneys-letter/index.html): Dear Mr. Janszen,       I am writing to let you know how delighted I am with the JansZen zA2.1a’s. To my ears (and those of everyone else who’s heard them) they make reproduced music uniquely absorbing, fascinating, and enjoyable         In my room, the zA2.1a’s have an uncanny ability to place performers in an appropr (336 words) - [AAJ Patent - JansZenAudio](/content/pages/aaj-patent/index.html): Click here for Arthur A. Janszen's 2nd wide range tweeter patent, issued 1955 (25 words) - [Side-stepping the Side Wall Issue - JansZenAudio](/content/blogs/issues-in-audio/side-stepping-the-side-wall-issue/index.html): Room treatment can be a controversial subject in most homes, at least from an aesthetic viewpoint. Let's look at what can you do that's likely to be simpatico with your final arbiter of home decor.People are pretty well aware that the room can affect tonality and bass, and that there are things one can do to the room a (1,714 words) - [Headphones - JansZenAudio](/content/collections/headphones/index.html) (52 words) - [Electrostatic Loudspeaker Attributes, the Mythic and the Mythical - JansZenAudio](/content/blogs/issues-in-audio/electrostatic-loudspeaker-attributes-the-mythic-and-the-mythical.html): Over the decades, there’s been a mix of wonders and flaws claimed for this interesting and surprisingly ancient type of loudspeaker. In this posting, I address a range of electrostatic attributes. Naturally, in the process, I keep in mind our 2008 version of the first practical design -- the one that started it all in (4,013 words) - [Room Correction: Benefits and Pitfalls - JansZenAudio](/content/blogs/issues-in-audio/room-correction/index.html): Room correction devices are designed to at least partially mask a room's problems without actually correcting them, so the term room correction may have been invented as a distraction from that fact. Although you can help one type of room problem in a limited way by altering the signals to the speakers, it's not a good (2,120 words) - [JansZen Panel Construction - JansZenAudio](/content/pages/janszen-panel-construction/index.html): These unique electrostatic transducers achieve wide dispersion and high sound pressure levels without the sonic compromises conferred by curvature and facets. Each is split electrically down the vertical center. In the standard configuration, the entire area gets the midrange signal, and only half gets treble. In this (140 words) - [Equipment - JansZenAudio](/content/pages/equipment/index.html): Currently, there is just one selection, here, the BACCH-SP (10 words) - [Carmelita Active - JansZenAudio](/content/products/carmelita-active/index.html): The Carmelita Active lets you pare your system down to its essentials, while experiencing electrostatic clarity and neutrality, right along with maximum bass depth and punch. The remote control, built-in bi-amplification, DAC, automatic input selection, and high input sensitivity let you eliminate most of the equipment (553 words) - [About us - JansZenAudio](/content/pages/about-us/index.html): Arthur A. Janszen invented the first practical electrostatic high fidelity loudspeaker based on his academic research work in the 1940's. By 1954, he had refined and patented it. In 1955, he founded JansZen Laboratory Inc., where he began manufacturing and marketing this new technology to great acclaim. It was, in fact (289 words) - [Owner's Manuals and Instructions - JansZenAudio](/content/pages/owners-guides/index.html): Owner's Manuals Carmelita Passive Valentina P8 Carmelita Active Valentina A8   Instructions Packing and Unpacking the Valentinas (important!) How to optimize Valentina Back-tilt and Toe-in -- the Mirror Trick (42 words) - [Valentina Active Owner's Guide - JansZenAudio](/content/pages/valentina-active-owners-guide/index.html): Click here to download the original Valentina Active Owner's Guide (14 words) - [Loudspeaker Cables - JansZenAudio](/content/products/loudspeaker-cables/index.html): JansZen loudspeaker cables are hand made with 12 gauge, oxygen free copper conductors. The conductors are finely stranded, so the cables are extremely flexible. The cable inductance and capacitance are well balanced against one another for ideal conveyance and coupling of your amplifier signal to the loudspeakers. Our (1,455 words) - [Vintage - JansZenAudio](/content/pages/vintage/index.html): JansZen has been introducing unique speakers since 1955, and we continue to support them. These range from the original Model 65 and 1-30 tweeter arrays to the KLH Nine to the many hybrids made and sold by licensees Neshaminy Electronic and Electronic Industries (JansZen Electrostatic). This means we will undertake rep (112 words) - [Carmelita Passive - JansZenAudio](/content/products/carmelita/index.html): The Carmelita Passive is our stand mounted model for playing music with external amplifiers. It's available in three figured veneers: maple, cherry, and walnut. Stands are optional. They can support up to 135 lbs, [60 kg], have a glass base and powder coated post and top plate. They are available as stand-alone units t (415 words) - [Michael H's letter - JansZenAudio](/content/pages/michael-hs-letter/index.html): August 4th, 2020    They sound really neutral, and as I play Mahler's 8th symphony on them, when the woodwinds and the soprano are both playing, there is no hint of intermodulation. Both together sound utterly smooth.    I don't feel any fatigue after half an hour of soprano and flutes mostly.   The photos and video at (251 words) - [HOW WE DO IT - JansZenAudio](/content/pages/editor/index.html): HOW WE DO IT The keys are: technology an emphasis on live sound in real rooms careful listening JansZen invented and patented the first practical electrostatic speaker in the early 1950's. Our modernized electrostatic transducer technology is the basis for delivering incomparably natural midrange and treble, while fast (150 words) - [Valentina A8 (Active) - JansZenAudio](/content/products/valentina-a8-active-biamplified/index.html): The Valentina A8 is a substantial upgrade to the original Valentina Active. If you've already read about or heard the original, what's new in the sound is Deeper bass Stronger impact Louder playback Sharper imaging Wider soundstaging There's also much enhanced functionality that includes Five independent inputs -- thre (1,026 words) - [BACCH Stereo Purifier - JansZenAudio](/content/pages/bacch-stereo-purifier/index.html): BACCH SP What stereo was meant to be Stereo is a fairly basic scheme: two speakers let us hear musicians performing between them, and maybe a bit beyond. It was first invented and patented in 1931 by Alan Blumlein at EMI. In the first four or five decades after that, great strides were made in performance and fidelity, (3,293 words) - [agents-md.html](/content/agents-md.html) (702 words) - [opt-out - JansZenAudio](/content/pages/opt-out/index.html): You may opt-out of receiving all communications from third-party partners of JansZen Audio by typing OPT-OUT into the message box in the following form:   (184 words) - [Headphones - JansZenAudio](/content/pages/headphones/index.html): We've developed the world's first entirely self-contained, and thus fully portable electrostatic headphones. Prototypes were demonstrated at the last few annual AXPONA shows in Chicago driven by just a smart phone. The final prototype was seventh in the series. Four copies were made and shown at the 2019 AXPONA. Here's (228 words) - [Issues in Audio - JansZenAudio](/content/blogs/issues-in-audio/index.html) (146 words) - [Option, Stereo Everywhere - JansZenAudio](/content/pages/option-sound-everywhere/index.html): We now offer the SE option on the Valentina A8. The SE stands for Stereo Everywhere, because when operating in its omnidirectional mode, stereo imaging and natural tonality are present well off center. The Valentina A8 thus becomes the ultimate expression of what this time honored loudspeaker is capable of. Getting bot (1,883 words) - [Reviews - JansZenAudio](/content/pages/reviews/index.html): Valentina P8: Mike Prager, a long time owner of a pair of Valentina P8, is also an astute reviewer of audio gear. In this early 2025 review, he reveals his experience of the Valentina P8 during his ten years of ownership to date. He writes clearly and comprehensively about this model's attributes, after exclaiming, "Th (1,570 words) - [Company origins - JansZenAudio](/content/pages/company-origins/index.html): Arthur A. Janszen, 1962 Arthur A. Janszen's Loudspeaker Developments Arthur Janszen founded the JansZen brand in 1955. He was an example of what was then known as an applied physicist, someone who later would be called an engineer. He invented many things in his life, but is known in audio for inventing the first pract (2,399 words) ## About Pages - [Contact - JansZenAudio](/content/pages/contact/index.html): ​Phone:  +1 (614) 448-1811 Skype: JansZen_ESL1 Or use the form below to send an email message. (194 words) ## Resources - [Full Page Index](/index.html): Browse all cached pages with rich metadata - [About This Cache](/about.html): Methodology, technical details, and usage guidelines - [XML Sitemap](/sitemap.xml): Machine-readable sitemap for crawler discovery - [Robots.txt](/robots.txt): Crawler directives - [Agentsite Network](https://agentsite.network/network.html): Public index of Agentsites and their machine-readable resources