https://acousticresearchspeakers.net Tue, 19 May 2026 03:37:20 +0000 en-CA hourly 1 https://wordpress.org/?v=4.1.1 https://acousticresearchspeakers.net/2026/05/acoustic-research-ar-3a-holy-grail-pair-first-year-1967-production/ https://acousticresearchspeakers.net/2026/05/acoustic-research-ar-3a-holy-grail-pair-first-year-1967-production/#comments Mon, 18 May 2026 03:34:55 +0000 https://acousticresearchspeakers.net/2026/05/acoustic-research-ar-3a-holy-grail-pair-first-year-1967-production/ read more »]]>
















Serial Numbers: 3A 02579 & 3A 02582. Production Year: 1967 (First Year). Condition: All original, never serviced, grilles never removed. Cabinets: Nice condition, a little work could make them excellent. ? WHY THIS PAIR IS EXCEPTIONAL. Serial numbers 3A 02579 and 3A 02582 place these speakers among the earliest AR-3a’s ever produced – from the very first year of production (1967) – and only 3 digits apart, confirming they left the factory virtually back-to-back as a true matched pair. The switch from the desirable alnico-magnet woofers to ceramic woofers didn’t occur until serial numbers in the high 28,000s (late 1969). These speakers, at 02579/02582, almost certainly retain their original alnico woofers with cloth surrounds – the most sought-after configuration among AR-3a collectors and enthusiasts. PROVENANCE & CONDITION. Grilles have NEVER been removed – completely unmolested. Never serviced, recapped, refoamed, or modified in any way. All drivers original and fully functional – they sound great. Cabinet conditions are nice, could use a little TLC. This is not a restored pair. This is not a “good for its age” pair. This is the real thing – a time capsule. ? ABOUT THE AR-3a. The Acoustic Research AR-3a U. Patent 3,033,945 is widely regarded as one of the most historically important loudspeakers ever manufactured. Introduced in 1967 by Acoustic Research of Cambridge, Massachusetts, it pioneered the acoustic suspension design and set the standard for high-fidelity speaker reproduction for a generation. It was the reference standard in studios, universities, and audiophile listening rooms worldwide. Located in Sioux City, Iowa. I’m happy to provide additional photos, serial number close-ups, or answer any questions. Serious buyers only please – this is a firm price reflecting the exceptional rarity and condition of this pair.

]]> https://acousticresearchspeakers.net/2026/05/acoustic-research-ar-3a-holy-grail-pair-first-year-1967-production/feed/ 0 https://acousticresearchspeakers.net/2024/11/the-world-first-sound-speaker/ https://acousticresearchspeakers.net/2024/11/the-world-first-sound-speaker/#comments Mon, 04 Nov 2024 06:47:59 +0000 https://acousticresearchspeakers.net/2024/11/the-world-first-sound-speaker/ ]]> https://acousticresearchspeakers.net/2024/11/the-world-first-sound-speaker/feed/ 0 https://acousticresearchspeakers.net/2024/08/acoustic-research-ar-3-full-alnico-the-first-year-1959-60-pioneer-reference-c-90-m-90-grundig-9000/ https://acousticresearchspeakers.net/2024/08/acoustic-research-ar-3-full-alnico-the-first-year-1959-60-pioneer-reference-c-90-m-90-grundig-9000/#comments Mon, 26 Aug 2024 02:23:07 +0000 https://acousticresearchspeakers.net/2024/08/acoustic-research-ar-3-full-alnico-the-first-year-1959-60-pioneer-reference-c-90-m-90-grundig-9000/ ]]> https://acousticresearchspeakers.net/2024/08/acoustic-research-ar-3-full-alnico-the-first-year-1959-60-pioneer-reference-c-90-m-90-grundig-9000/feed/ 0 https://acousticresearchspeakers.net/2022/09/treat-these-areas-first-where-to-begin-acoustic-treatment/ https://acousticresearchspeakers.net/2022/09/treat-these-areas-first-where-to-begin-acoustic-treatment/#comments Thu, 29 Sep 2022 15:48:42 +0000 https://acousticresearchspeakers.net/2022/09/treat-these-areas-first-where-to-begin-acoustic-treatment/ ]]> https://acousticresearchspeakers.net/2022/09/treat-these-areas-first-where-to-begin-acoustic-treatment/feed/ 0 https://acousticresearchspeakers.net/2021/10/vintage-acoustic-research-ar-3-first-edition-set-please-read-description/ https://acousticresearchspeakers.net/2021/10/vintage-acoustic-research-ar-3-first-edition-set-please-read-description/#comments Mon, 18 Oct 2021 11:22:52 +0000 http://acousticresearchspeakers.net/2021/10/vintage-acoustic-research-ar-3-first-edition-set-please-read-description/ read more »]]>













Vintage Acoustic Research AR 3 First Edition Set. All original acquired from first owner. Serial numbers are not far apart. Common potentiometer problem on both sets which need to be cleaned or replaced with new. One mid-range driver didnt respond to sound possible defective driver, tested the lead wires from the front and shows no reading at all. All the rest are good working condition. Grills also need attention because the plastic cloth frame it deformed and has 1 broken section on each. 1 logo 3 is missing as well. Stands are not included with the speakers. Normal wear and marks on walnut cabinets. Sell as is condition. The item “Vintage Acoustic Research AR 3 First Edition Set. Please Read Description” is in sale since Friday, October 8, 2021. This item is in the category “Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Speakers”. The seller is “dagnda_0″ and is located in Rowlett, Texas. This item can’t be shipped, the buyer must pick up the item.

• Brand: Acoustic Research
• Model: AR3
• Country/Region of Manufacture: United States

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Vintage Pair of Acoustic Research AR-LST Speakers. Decided to part with a family gem that will surely show well for the enthusiast of this amazing piece of AR history. Please note, These Are NOT LST-2 models. Fully functioning vintage classic pair of Acoustic Research AR-LST Speakers. Amazing sound all original. Does not include original packaging. 27 x 20 x 9 ¾ inches. These are vintage speakers. The item “Vintage Acoustic Research AR- LST Speakers Original First owner” is in sale since Sunday, June 20, 2021. This item is in the category “Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Speakers”. The seller is “dseanemail_1″ and is located in Tracy, California. This item can be shipped to United States.

• Model: LST
• Country/Region of Manufacture: United States
• Brand: Acoustic Research

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The world’s largest online retailer of pre-owned audio. Acoustic Research AR 303A Bookshelf Speakers; 303-A; Rosewood Pair – First Pair! Age: Manufactured October 1995. Serial Number: 001000, 001001. # of Owners: 1. From the previous owner of these speakers. Cosmetic Description: 7/10 Good cosmetic condition with some minor visible cosmetic wear including some barely visible nicks on the baffle and around its edges. This item has some very light wear but still presents like new from your listening position. What is Included: Pair of speakers, Manual, Assorted literature, Factory packaging. Other Notes: This rare pair of 303A’s are the very first pair off the line, serial numbers 000 & 001. These are an audiophile collectors dream come true, they are a rare one-of-a-kind pair of AR speakers that have a fascinating history and the documentation to back it up. More than forty years of research and design have led to the production of this extraordinary musical component. The natural evolution of the classic 1967 AR 3 and the critically acclaimed 1994 AR 303, the new AR 303a is the pinnacle of the Acoustic Research loudspeaker line, combining reference quality sonic performance and furniture grade appearance. Functional Notes: Operational condition of this item is excellent, fully tested and no issues found. When I met with Tom at his home in North Carolina to pick these up, he told me that AR had gifted him a pair of AR303’s. They were the first iteration of the 303 model that came only in black. At the request of Julian Hirsch he sent them to Hirsch-Houck Laboratories for testing. Upon hearing this, AR decided to gift him a new pair of the AR303A model that was just going into production. They specified that Tom received the very first pair off the line, serial numbers 0000 & 0001. Items with factory packaging will be double boxed. (for all items over 10 lbs). Your online source for the best value in new and used audio gear. The Music Room is the largest online retailer of pre-owned HiFi equipment in the world. Headquartered in beautiful Boulder Colorado, The Music Room is a team of 17 strong (and growing) music lovers – all dedicated to one singular mission: delivering the very best online shopping experience in the audio industry – period. We specialize in well-cared for, previously used gear because that is what we are passionate about. We feel that there is nothing more fulfilling than creating a high-performance system on a budget with carefully selected used components, speakers and cables. Our program is safe, secure, fast, fair, hassle-free and highly effective. We will appraise your equipment and make you a quick, easy, fair cash offer. Just fill out our get a quote form on our homepage to start the process. Trade: Make your budget go further with a generous trade-in allowance. Let us know what you have available, and well get you the best possible trade-in allowance. Consign: We offer a hassle-free way for individuals and businesses to liquidate used gear. Leverage our world-class reputation and get exposure in multiple sales venues – putting your product in front of over 570k monthly shoppers. Our program is Safe, Secure, Fast, Fair, Hassle-Free and Highly Effective. With 100% feedback ratings in every venue in which we sell, you can rest assured that weve got your back. Quality Assurance: We offer 15-20 new product listings for sale daily. Each product undergoes an extremely rigorous quality-assurance and listening session by one of our qualified technicians. Our quality assurance program is informed by a knowledge-base built through delivering over 30,000 used audio products to satisfied customers. We promise to deliver your product in good working order – exactly as described 100% of the time. Support: We dont just make promises. We stand behind them – your satisfaction is guaranteed. Our support team is ready to help you with any questions you might have before and after the sale. Value: In the never-ending pursuit of high performance, its important to stretch your limited budget as far as possible. Theres simply no better way to maximize a limited audio budget. Packaging: Weve invested thousands of dollars and countless hours into mastering our state-of-the-art packaging process. Our custom foam-in-place packaging system allows us to safely package almost any item regardless of irregular shapes or sizes. Be seen by over 70,000 monthly visitors. These rates are clearly posted on each product page. If you have received an item that is defective in some way, we will make it right. The item “Acoustic Research AR 303A Bookshelf Speakers 303-A Rosewood Pair First Pair” is in sale since Sunday, May 9, 2021. This item is in the category “Consumer Electronics\TV, Video & Home Audio\Home Audio\Home Speakers & Subwoofers”. The seller is “tmraudio” and is located in Erie, Colorado. This item can be shipped to United States.

• Brand: Acoustic Research
• MPN: Does Not Apply
• Connectivity: Wired
• Model: AR 303A
• Type: Bookshelf Speakers

]]> https://acousticresearchspeakers.net/2021/05/acoustic-research-ar-303a-bookshelf-speakers-303-a-rosewood-pair-first-pair/feed/ 0 https://acousticresearchspeakers.net/2021/02/dominic-fike-at-first-full-documentary/ https://acousticresearchspeakers.net/2021/02/dominic-fike-at-first-full-documentary/#comments Sat, 20 Feb 2021 20:55:52 +0000 http://acousticresearchspeakers.net/2021/02/dominic-fike-at-first-full-documentary/ ]]> https://acousticresearchspeakers.net/2021/02/dominic-fike-at-first-full-documentary/feed/ 0 https://acousticresearchspeakers.net/2021/01/vintage-acoustic-research-ar18-hifi-speakers-first-series-60w-2/ https://acousticresearchspeakers.net/2021/01/vintage-acoustic-research-ar18-hifi-speakers-first-series-60w-2/#comments Sat, 16 Jan 2021 11:30:49 +0000 http://acousticresearchspeakers.net/2021/01/vintage-acoustic-research-ar18-hifi-speakers-first-series-60w-2/ read more »]]>












Vintage Acoustic Research AR18 HiFi Speakers – First Series – 60W. In full working order and profess. A small chip on one of the cabinets – see pictures. No front covers as they were made of foam and deteriorated over time. The mid range, high range and the bass are wonderful, bass is deep, tight and controlled, although very powerful. One of the best little speaker ever. It is thought the NS10 won out in the popularity stakes because of their highly identifiable white cone woofers. Edgar Villchur, the founder of the original Acoustic Research Company invented the acoustic suspension (infinite baffle) principle in 1953, just as they invented the dome speaker. What AR had always been famous for was the neutrality of sound. A good speaker was good with everything and anything, either you play rock or classical music they deliver amazing sound. There is some grain of truth in AR’s motto” High Fidelity’. Bookshelf acoustic suspension 2 way system with drive units in a vertical array. 200 mm/ 8” acoustic suspension woofer 32 mm liquid cooled cone highrange driver. 2.83 volts produce 88 dB at 1 metre on axis. 1 watt produces 88 dB SPL at 1 metre on axis. May be used with amplifiers capable of delivering up to 100 watts continuous power per channel, being driven into clipping no more than 10% of the time on normal speech and music source material in non-commercial applications. 3 dB half power points at 62 Hz and at 20000 Hz. System Low Frequency Responce. 3 dB at 62 Hz with an effective Q at resonance of 1.0. 8 Ohms nominal /5.5 ohms minimum/. Woofer has a 12 dB/octave mechanical crossover. Tweeter has first order order electrical network plus mechanical slope to give a total of 18 dB/octave. 419 x 244 x 167 mm deep. 5.9 Kg per speaker. 48 Hz – 23 kHz. The item “Vintage Acoustic Research AR18 HiFi Speakers First Series 60W” is in sale since Sunday, January 10, 2021. This item is in the category “Sound & Vision\Home Audio & HiFi Separates\Speakers & Subwoofers”. The seller is “mastore_mastore” and is located in Dundee. This item can be shipped worldwide.

• Model: 18s
• Connectivity: Wired
• Type: Bookshelf
• RMS Power: 60 W
• Brand: Acoustic Research

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Vintage Acoustic Research AR18 HiFi Speakers – First Series – 60W. In full working order and profess. A small chip on one of the cabinets – see pictures. No front covers as they were made of foam and deteriorated over time. The mid range, high range and the bass are wonderful, bass is deep, tight and controlled, although very powerful. One of the best little speaker ever. It is thought the NS10 won out in the popularity stakes because of their highly identifiable white cone woofers. Edgar Villchur, the founder of the original Acoustic Research Company invented the acoustic suspension (infinite baffle) principle in 1953, just as they invented the dome speaker. What AR had always been famous for was the neutrality of sound. A good speaker was good with everything and anything, either you play rock or classical music they deliver amazing sound. There is some grain of truth in AR’s motto” High Fidelity’. Bookshelf acoustic suspension 2 way system with drive units in a vertical array. 200 mm/ 8” acoustic suspension woofer 32 mm liquid cooled cone highrange driver. 2.83 volts produce 88 dB at 1 metre on axis. 1 watt produces 88 dB SPL at 1 metre on axis. May be used with amplifiers capable of delivering up to 100 watts continuous power per channel, being driven into clipping no more than 10% of the time on normal speech and music source material in non-commercial applications. 3 dB half power points at 62 Hz and at 20000 Hz. System Low Frequency Responce. 3 dB at 62 Hz with an effective Q at resonance of 1.0. 8 Ohms nominal /5.5 ohms minimum/. Woofer has a 12 dB/octave mechanical crossover. Tweeter has first order order electrical network plus mechanical slope to give a total of 18 dB/octave. 419 x 244 x 167 mm deep. 5.9 Kg per speaker. 48 Hz – 23 kHz. The item “Vintage Acoustic Research AR18 HiFi Speakers First Series 60W” is in sale since Monday, October 19, 2020. This item is in the category “Sound & Vision\Home Audio & HiFi Separates\Speakers & Subwoofers”. The seller is “mastore_mastore” and is located in Dundee. This item can be shipped worldwide.

• Model: 18s
• Connectivity: Wired
• Type: Bookshelf
• RMS Power: 60 W
• Brand: Acoustic Research

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