Ar 18 speaker
They are using acoustic suspension theory and design - instead of reflection speaker design. HT contained advanced speaker technology. For example: i. Titanium dome tweeter with liquid cooling design ii. Tetra-helix reflection disc working with tweeter iii.
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Ar 18 speaker
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- Acoustic Research AR-18
- Acoustic Research AR-18 s
- AR 18S, AR 38, AR 9, AR 9LSI, AR 90, AR 94 8″ Midrange/Woofer #12100450
- AR18 speakers - info on their history please
- Vintage Asylum
- Acoustic Research AR-18 speakers
- Acoustic Research AR18 vintage speakers : Walnut veneer : Refurbished
- Second-hand Acoustic Research Speakers for sale on UK's largest auction and classifieds sites
- "ar speakers" in Computers, Game Consoles, Stereos & Other Electronics in South Africa
Acoustic Research AR-18
Acoustic Research was a Cambridge, Massachusetts -based company that manufactured high-end audio equipment. The brand is now owned by VOXX. Acoustic Research was known for the AR-3 series of speaker systems, which used the 12 in mm acoustic suspension woofer of the AR-1 with newly designed dome mid-range speaker and high-frequency drivers.
AR's line of acoustic suspension speakers were the first loudspeakers with relatively flat response, extended bass , wide dispersion, small size, and reasonable cost. Acoustic Research, Inc. Patent 2,, , granted to Edgar Villchur and assigned to Acoustic Research in Edgar Villchur's technical innovation was based on objective testing and research, most of which was made publicly available as documents, specifications, and measurements—all of which were then new in the loudspeaker industry.
Acoustic Research as an employer claimed equal opportunity and offered liberal employee benefits , insurance , and profit sharing to its employees. The acoustic suspension woofer provided an elegant solution to the age-old problem of bass distortion in loudspeakers caused by non-linear, mechanical suspensions in conventional loudspeakers.
The existing state-of-the-art at the time of AR's invention was the bass reflex speaker, which boosted bass response for a given amount of cone travel by directing sound energy from the rear of the speaker cone through a port in the cabinet "tuned" for reinforcement of the direct signal from the front of the cone by the signal from the rear of the cone.
Among the drawbacks of bass reflex design are the stringent design parameters required for accurate bass reinforcement, requiring high precision and at the time, large cabinets.
Some loss of accuracy "smearing" or "vooming" of low frequencies was inevitable and the results were not entirely predictable. Extensive prototyping drove up the development costs of new designs, pushing them out of popular price ranges. High fidelity woofers were vulnerable to damage from extreme low frequency signals.
Those issues were addressed with the invention of the acoustic suspension woofer. The disadvantage of this arrangement is low efficiency. Since the restoring force is large with a large woofer in a small cabinet, the cone must be massive to keep the resonant frequency in the required low bass region. The AR-1s were about 10 per cent as efficient as other physically much larger existing speakers with equivalent bass response, [3] but since higher power amplifiers were becoming available about the same time, this was a reasonable trade-off to get good bass response from a relatively small speaker.
The AR-1 set new standards for low-frequency performance and low distortion that were unsurpassed for many years. Some of the best loudspeakers available fifty years later continue to use the acoustic suspension principle for high quality, low distortion bass reproduction.
The small size of the high performance AR-1 permitted by the acoustic suspension design, helped usher in the age of stereophonic sound reproduction. Two bookshelf-sized loudspeakers were far more acceptable in a living room than the two refrigerator-sized boxes previously necessary to reproduce low frequency bass notes. For nearly ten years after its introduction, the AR-3 was widely regarded as the most accurate loudspeaker available at any cost, and was used in many professional installations, recording studios, and concert halls.
Many professional musicians used AR-3 loudspeakers as monitors because of their excellent sound reproduction. In the early s, AR conducted a series of over 75 live vs. The company also established music demonstration rooms on the mezzanine of Grand Central Terminal in New York City and on a street corner of Harvard Square in Cambridge, Massachusetts, where the public could stop by and listen to its products, but no sales were made there.
This low-key marketing innovation boosted the company's business. AR continued to introduce new designs, and by the company had grown to hold This was the largest market share ever held by a loudspeaker manufacturer since statistics have been kept.
The AR-3 was replaced by the AR-3a in , having a new dome midrange and tweeter reduced in dimensions, for even better mid and high frequency dispersion. The AR-3a was subsequently replaced by the AR and ARpi in , which shared the same improved tweeter and midrange domes.
A pole hysteresis-synchronous, permanent magnet Hurst AC motor propelled the platter via a precision ground rubber belt to produce very low wow and flutter , exceeding the NAB National Association of Broadcasters standards for turntable measurements.
Many AR turntable models [6] remain in high demand. In particular, the mids models are highly modifiable to become first-rate vinyl record playback units. In , Acoustic Research was bought by Teledyne , Inc. Technological breakthroughs during this period included the high-current amplifier. When purchased by Teledyne, AR was the world's second largest supplier of branded loudspeakers. Although Acoustic Research continued product development, by AR had dropped to fifth place worldwide, and Teledyne sold the company to their major competitor, Jensen Electronics.
Under both Jensen and Recoton, the AR brand continued development in the speaker industry, including the environmental controls that allowed a speaker to be placed in different room areas, the Acoustic Blanket that minimized diffraction and interference in speaker baffles, and a speaker line designed to complement home theater and the digital technologies of the s.
In , Audiovox now Voxx International acquired the U. Web-based audiophile communities lamented the closure of the company and apparent liquidation of stock. From Wikipedia, the free encyclopedia. United States. Authority control. Namespaces Article Talk. Views Read Edit View history. Help Learn to edit Community portal Recent changes Upload file. Download as PDF Printable version. Wikimedia Commons.
Add links. Consumer electronics. Cambridge, Massachusetts , United States.
Acoustic Research AR-18 s
Acoustic Research Speakers. Known as the last iteration of the famous AR speaker. This pair has been cleaned, cabinets detailed and 8 woofers expertly refoamed. The grills have the AR badges intact. There are signs of wear but the set still looks and performs great. See the images for exactly what you will get.
AR 18S, AR 38, AR 9, AR 9LSI, AR 90, AR 94 8″ Midrange/Woofer #12100450
Acoustic Research was a Cambridge, Massachusetts -based company that manufactured high-end audio equipment. The brand is now owned by VOXX. Acoustic Research was known for the AR-3 series of speaker systems, which used the 12 in mm acoustic suspension woofer of the AR-1 with newly designed dome mid-range speaker and high-frequency drivers. AR's line of acoustic suspension speakers were the first loudspeakers with relatively flat response, extended bass , wide dispersion, small size, and reasonable cost. Acoustic Research, Inc. Patent 2,, , granted to Edgar Villchur and assigned to Acoustic Research in Edgar Villchur's technical innovation was based on objective testing and research, most of which was made publicly available as documents, specifications, and measurements—all of which were then new in the loudspeaker industry. Acoustic Research as an employer claimed equal opportunity and offered liberal employee benefits , insurance , and profit sharing to its employees.
AR18 speakers - info on their history please
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Vintage Asylum
Inheriting the simple yet handsomely elegant style from the world renowned S40 STATUS, the all-new S40i Series incorporates remarkable technology from high-end Acoustic Research speakers combined with state-of-the-art engineering solutions unique to the range, bringing to you unprecedented audio experiences across musical, cinematic and all other entertainment applications. Data Sheet. Description Additional information Description Inheriting the simple yet handsomely elegant style from the world renowned S40 STATUS, the all-new S40i Series incorporates remarkable technology from high-end Acoustic Research speakers combined with state-of-the-art engineering solutions unique to the range, bringing to you unprecedented audio experiences across musical, cinematic and all other entertainment applications. Accessories 4 Glass Shelf Audio Stand, You may also like….
Acoustic Research AR-18 speakers
Location: Glasgow Posts: I'm Rohan. Acoustic Research AR opinions and restoring I was informed by my parents that a relative had given them some speakers thinking that perhaps I could bring them back to life. My Mum said on the phone, "They don't look very good or anything special at all. I couldn't believe it when I saw they were AR18s! The foam surrounds have rotted completely away. I see there is one little elcap in there that I suppose is worth replacing.
Acoustic Research AR18 vintage speakers : Walnut veneer : Refurbished
David, aka Grumpy, needs our help. Great news. David is home!
Second-hand Acoustic Research Speakers for sale on UK's largest auction and classifieds sites
RELATED VIDEO: AR 18 Acoustic Research + JVC JA - S22Classic gear from yesteryear; vintage audio standing the test of time. Vintage Asylum Classic gear from yesteryear; vintage audio standing the test of time. Return to Vintage Asylum. Ebay has a bunch of 18Bs.
"ar speakers" in Computers, Game Consoles, Stereos & Other Electronics in South Africa
Back in Edgar Villchur, the founder of the original Acoustic Research Company already knew stuff about acoustic engineering and loudspeaker design many modern day designers have only come to know in recent years. One such aspect is the minimalist cross over network, that when implemented in conjunction with custom designed drive units, cause for unparalleled transparency from the transducer system. In fact, in those days if a designer wanted to succeed in making a note worthy product of any kind, the in house route proved the only way. Some of these speaker systems were of such lofty cost that the sale of the family vehicle or two would not have loosened up enough cash to make them possessions. For most of us this will probably always be the case, but there is light at the end of the tunnel and this time it is not the obvious freight carrier speeding to shatter a most aspiring dream. All were bought from the obvious 2nd hand exchange chain stores and none of them needed more work than replacement of the foam woofer surrounds. I love the AR18s.
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