The higher power, needless to say, resulted in a much more rapid increase of distortion, although it was still in the 2 to 2.5 per cent range down to 85 Hz and reached 12.5 per cent at 50 Hz. The response was ± 5 dB from 180 to 18,000 Hz, both limits being set by the analysis system rather than the speaker. Boston Acoustics Speakers – Model: A40V. Without being overbearing, the A40s always had enough sound to fill up a dorm room or an apartment living room. In fact, I bought a pair of A40s—for my 15 year-old daughter.—Sam Tellig. I regret the decision. 5.0 out of 5 stars. I've done two pair of A40's and a pair of A60's. They're doomed because the cost in other areas tends to be severe. Boston Acoustics HS 225 Center LEFT RIGHT Speaker - Works Great Multi Function. Speaker Rig: Topping D50s > Sony STR-6050 > Boston Acoustics A40 Share This Post post-10441347. Free shipping . The Boston Acoustics M-series brings an impressive display of balance, accuracy, musicality, and sheer power which we think is a huge step forward for … The A26 is a smooth, entertaining performer that works well in a range of systems For A refined and full bodied presentation favorite this post Dec 25 Boston Acoustics Speaker Set $120 (njy > Fort Lee NJ) pic hide this posting restore restore this posting. The speaker's insulated spring-loaded connectors are recessed into the rear of the cabinet. Boston Acoustics 6" / CR7 / A40 Series II Speaker Foam Surround Repair Kit. I would say that is the wrong question. The bass distortion was measured with the microphone close to the speaker cone at inputs of 1 watt and 10 watts (based on an 8-ohm impedance). Boston Acoustics points out that the low price of the A40 is largely due to the use of vinyl-clad wood and the simple crossover network (one capacitor and one inductor) made possible by the choice of driver characteristics. The original model (series 1) had the woofer midway between the top and bottom. Boston Acoustics manages to sell their A40 quite successfully as far as I can make out, and again this model seems to be pretty well in tune with British tastes in loudspeakers. Though not vented, I can sense the likeness to my actual first good speakers, some B&W DM303s. Boston acoustics vintage a70 8 2 way sealed speakers made in usa local pu. The speaker was on a stand about 21 inches from the floor and at least 5 feet from any room wall. Brand: SS Audio. Boston Acoustics Style 6.5 Inch Woofer, A40 Series II and A-40 Series 2, W-675 1 offer from $49.00 Klipsch Pro Media 6.5 Inch Foam Speaker Repair Kit FSK-6.5 (Pair) Pack them away with your baseball glove, then give them to your child when it's time! The A40 makes no pretence at ladling out oodles of bass from its matchbox-like dimensions, nor is there any evidence of an attempt by the loudspeaker's designers to make it sound as smooth as possible, regardless of cost to the sound as a whole. The sensitivity of the A40 was on the high side for a sealed system, with a 2.83-volt (1-watt) input of random noise in an octave centered at 1,000 Hz generating a sound-pressure level of 89 dB measured at a 1 meter distance. Engineers, manufactures and markets moderately priced, loudspeaker systems for use in home audio and video entertainment and after-market automotive audio systems. However, most of these speakers carried list prices between $150 and $300. At 1 watt, the distortion was well under 1 per cent down to 60 Hz, rising gently to 4.5 per cent at 30 Hz. By excluding a slight peak at about 15.000 Hz, the overall variation was reduced to ± 4 dB. Brand New. I was originally going to do a review comparing the Spectrum 108A ($200/pair) and the Boston Acoustics A40. I walked into the store hoping to purchase a pair of AR90s they had on sale, listened to the BAs, dealt with the cognitive dissonance associated with a smaller transducer, and a few weeks later bought the A40s. As a little background the original A40 (81-85 approx.) Boston Acoustics a100 - various versions & crossovers. In all fairness, the A40s are probably the best $150/pair speakers and they are not bad in video installations, kids' systems, college dorm rooms, and the like. $120. It occurs at 3.5kHz—and 3.5kHz is about where I hear the problems. However, the A40s are often discounted to as little as $120/pair and the 108As tend to sell at list price. Discussion in 'Speakers' started by sba2, Aug 29, 2016. sba2 New Member. The quasi-anechoic response of the speaker was measured with our INDAC FFT analysis system. $50. Comes with 1 foam surround, instructions, speaker adhesive, applicator brush, and phone or email technical support. Extended listening to the A40 has shown us that there is nothing about its sound to identify it as coming from a smallish, inexpensive speaker. These speakers could not match the B&W 685s (perhaps the closest thing to a successor speaker that we may have today) that I replaced them with in 2010. Fits a speaker cone of 4 3/4" inches. Boston Acoustics A26 review A smooth, entertaining performer that works well in a range of systems Tested at £250. We essentially duplicated the claimed performance despite our completely different test conditions. The woofer output at 110 Hz was about 3 dB higher than in a broad plateau of ±1.5 dB from 250 to 2,000 Hz, and it fell off at 12 dB per octave below 100 Hz. Boston Acoustics A40 Bookshelf Speakers * New Foams 2/2021 * This isn't the case with other American designs, which seem to put all effort into a doomed attempt at going deeper in bass than the next. However, these speakers were great for their epoch, particularly for those of us who were on a tight budget. Boston Acoustics Style 6.5" Woofer, A40 Series II and A-40 Series 2, W-675 SS Audio Boston Acoustics style 6.5" woofer in 7" frame Original design, poly cone, … May the Boston Acoustics A40 live on in used audio departments of independent dealers, and in the internet. Pickup must be made at our retail store in Jamestown, NC. The crossover between its 6-1/2-inch acoustic-suspension woofer and 3/4-inch dome tweeter is at 3,500 Hz, with 6-dB-per-octave slopes. Head-Fier. Very few forward-radiating systems we have seen can match its dispersion. The A40 comes surprisingly close to matching the essential sound quality and character of the best and most esteemed speakers for a small fraction of their cost, and it is hard to imagine a room unable to accommodate a pair of them. UmustBKidn. The A40 Loudspeaker is a two-way, stand-mounted loudspeaker system. Crossovers It appears that the A100 evolved during its 1980's production life. The Boston Acoustics A40 loudspeaker ($150/pair) has become "legendary" (ie, it's stayed around for a while), probably because a pair of them images as well as Rogers LS3/5A s. Unfortunately, it is no match for the LS3/5A in terms of smooth midrange response. Boston Acoustics Style 6.5 Inch Woofer, A40 Series II and A-40 Series 2, W-675. Opens image gallery. The Boston Acoustic A60 is a highly achieve full volume. Oct 5, 2014 at 11:29 AM. I refoamed these with proper Boston Acoustics scalloped edge surrounds. For our room-response measurements, the A40s were placed against a wall about 8 feet apart and 5 feet above the floor. Top Rated Seller Top Rated Seller. The A40's crossover may be the problem. If I had been into music, and audio back then, these A40s or similar likely would have been my first 'real' ones. View & download of more than 936 Boston Acoustics PDF user manuals, service manuals, operating guides. Authorized deals curated for you to save time and money. By What Hi-Fi? Terms of Sale: This item is available for local pickup only. Kit to repair one 6 inch speaker. These speakers had good sensitivity, great stereo imaging, had a sealed enclosure (a greater rarity in today's bass-reflex obsessed world) and took up little space. Our Verdict. (This type of measurement is not fully valid above about 1.000 Hz since the dimensions of the speaker cone become comparable to the wavelength of the sound.). Rated impedance is 8 ohms, and there are no balance or level adjustments. Though now out of use, They are stored away and will NEVER be parted with. Joined Apr 26, 2013 Messages 908 Reaction score 220 Location So Cal. Speaker parts, cones, speaker foam edges, woofer repair. The Boston Acoustics A40 is a welcome exception to that rule. As mentioned earlier in this column (July 11) Boston Acoustics' A40, with its remarkable sweetness and clarity is an unbeatable value at $75, comparable only to … I own pairs of Boston Acoustics A70's, A60's and A40's. • Turn the power switch off when the A40 is not in use. C $35.38. • The AC cable should be unplugged from the AC outlet if the A40 will not be used for an extended period of time. Boston acoustics subsat 6 manual. Just remembe—you could do a lot worse for $120–$150! Paradigm Atom, Titan, Boston Acoustics A40, Bose 201 Speakers $75 (njy > Union County) pic hide this posting restore restore this posting. The bass response was measured separately with close microphone spacing. Sensitivity: 88.5dB/W/m. I purchased a new pair of Boston Acoustics A40 in 1986. The Boston Acoustics A40 is a small two-way bookshelf speaker (it could reasonably be described as a "minispeaker") that delivers exceptional performance at a very low price. The Boston Acoustics A40 is a small two-way bookshelf speaker (it could reasonably be described as a "minispeaker") that delivers exceptional performance at a very low price. Classifieds: FOR SALE or TRADE - Boston Acoustics A40 asking for $100.00 07 November 2011. Boston Acoustics A40 These speakers have good sensitivity, great stereo imaging, had a sealed enclosure and take up little space. I replaced the drivers, and the speakers rendered fine service for another decade. Its maximum was about 20 ohms at the bass resonance of 90 Hz, and there was a broad rise to about 18 ohms in the 2,500- to 3,500-Hz crossover region. Gramophone Dreams #46: Decware Zen Triode Amplifier, Wilson Audio Specialties SabrinaX loudspeaker, Pass Laboratories XP-32 line preamplifier, Counterpoint Natural Progression NPS-400 power amplifier, The FTC Proposes Eliminating Its "Amplifier Rule", Acoustic Geometry Room treatments (before & after), My current and likely the last home audio setup, Recording of February 2021: Newvelle Records Season Five, Recommended Components: Fall 2020 Edition. I have a certain fondness for overperforming, affordable, unobtrusive speakers, and I can easily see how one would grow attached to the A40s. Post #14 of 104 xdog Head-Fier. Obviously it cannot develop a room-shaking bass output-the laws of physics and economics make that impossible-but even that lack is unlikely to be noticed unless one is specifically listening for it. The crossover between its 6-1/2-inch acoustic-suspension woofer and 3/4-inch dome tweeter is at 3,500 Hz, with 6-dB-per-octave slopes. Works for: Boston Acoustics A40, A40 series II, A-120, A-2, A-40 (The A60's are actually my computer speakers now. I do plan on building my own next set of speakers (might even go with a large ribbon driver), but recently I've refoamed a few pairs of Boston Acoustics speakers. The very small difference between the left and right speaker curves above about 8,000 Hz attested to the excellent dispersion of the tweeters. A boosted upper-bass region is one expedient for making a loudspeaker sound physically larger, but the effect is nearly always as obvious as it is amusical. Pre-Owned. Speaker Rig: Topping D50s > Sony STR-6050 > Boston Acoustics A40 Share This Post post-10936148. Alvin Gold wrote about the A40 in November 1986 (Vol.9 No.7): Acoustic Research isn't the only US maker who successfully ship low-cost loudspeakers in the UK. Some Boston Acoustics speakers. On first listen, I was mightily impressed by the A40. By way of compensation, the overall balance and smoothness of the A40's sound are those of a good speaker by any standard, and it can hold its own in some very exalted circles if one is willing to forgo the deep-bass performance. These were Boston Acoustics best selling speaker for a reason, exceptional sound and great value. I finally sold my Boston Acoustics A40s to a cash conversion shop a couple of years ago. If shipping is important to you, please contact us directly before making this purchase. Boston Acoustics A40s - A great speaker from a better era, Sony SA-Z1 nearfield active speaker system, Bowers & Wilkins 705 Signature loudspeaker, GoldenEar BRX (Bookshelf Reference X) loudspeaker. Boston Acoustics A40s - A great speaker from a better era. Beautiful Boston Acoustics A400 3-way Floor/ Tower Speakers - Reconditioned #2 Boston Acoustics speaker repair foam edge repair kit for speakers and woofers, A40, A120, 360, Re-edge kit. Good condition cosmetically Specifications Two-way, stand-mounted loudspeaker. However, I have never listened to an HD8. This is a video tutorial for the speaker repair of the foam replacement, used for the Boston A60 and A70. Boston Acoustics Replacement Speakers / Parts / Spares for Vintage Boston Speakers. Infinity, Acoustic Research, and Advent all had similar bookshelf speakers in the 1980s. The microphone, placed at the rear of the room, was on the axis of the left speaker and about 30 degrees off the axis of the right speaker. Boston Acoustics fine customer service department sold me replacement drivers, which by then had rubber surrounds. With the A40, there is no longer a valid reason to degrade the performance of low-cost components (many of which are surprisingly good) by connecting them to inferior speakers. 500+ Head-Fier. Post #5,039 of 5,187 UmustBKidn 500+ Head-Fier. These speakers represented a better age, not just in audio terms, and I miss them. Drive units: ¾" (19mm) ferrofluid-cooled, soft-dome tweeter, 6.5" (170mm) long-throw paper-cone woofer Crossover frequency: 3.5kHz. QR Code Link to This Post. But after Stereophile's Larry Archibald schlepped me out a pair of the 108As, I didn't much want to listen to the A40s. An amplifier or receiver rated as low as 10 watts is sufficient (though the speaker can handle as much as 60 watts). Frequency response: 68Hz–20kHz, ±3dB. Tested and ready for a new home.The A40 Loudspeaker is a two-way, stand-mounted loudspeaker system. Speakers, Subwoofer user manuals, operating guides & specifications The problem is that the Spectrum 108A is a lot better for just 50 bucks more per pair. Buy It Now. When we had averaged the left and right speaker outputs and corrected the result for the known high-frequency absorption in the room, we obtained a frequency response flat within ±2.5 dB from 200 to 20.000 Hz. Drivers include a … The A40 impedance curve had broad minima of about 5 ohms in the 20- to 30-Hz range and between 200 and 300 Hz. Used … Joined Aug 8, 2013 Posts 75 Likes 22. Boston Acoustics fine customer service department sold me replacement drivers, which by then had rubber surrounds. I bought a pair of A40s in 1982. So if you're trying to put together a system on a reallyI rock-bottom budget, the Boston A40s could be just the right speakers at just the right price. Without being overbearing, the A40s have enough sound to fill up a dorm room or an apartment living room. In recent years we have auditioned and tested a number of very good speaker systems, most of them so good that we would be hard pressed to rank them in any order of quality. * Boston Acoustics * Model A40 Series II * 8 Ohms Available at FINDING TREASURES THRIFT and ANTIQUE not for profit helping kids with cancer. Page 5 Of Boston Acoustics Speaker System Ba7500 User Guide Boston Acoustics Subsat 6 Speakers Boston Acoustics Subsat 6 Series 2 006743 Bookshelf Speakers W Pv12 Subwoofer Ebay ... Boston Acoustics A40 Crossover. I purchased a new pair of Boston Acoustics A40 in 1986. Midrange resolution and sensitivity are almost always adversely affected as well.—Alvin Gold. Encouraged by this result, we turned the speaker a full 90 degrees off axis so that the microphone was effectively measuring the output off the side of the speaker. Boston Acoustics A40 Offers If you are looking for economical Boston Acoustics deals , stay tuned on Tulas deals archives. Sonus faber Presents a Discussion of Their Lumina Family of Passive Loudspeakers, Palladio Architectural Series, and Gravis Subwoofers! They're not doomed because the extra bass can't be had—it's always possible to get more bass. Works on angle attach speaker cones. This efficiency means you can spend less money on your receiver or amplifier and get excellent performance. Apr 9, 2014 at 5:43 AM. When we rotated the speaker 45 degrees to measure its off-axis response, we were surprised to find only a ± 2-dB variation from a few hundred hertz to 15,000 Hz, which was about the flattest speaker response we have yet measured with the INDAC system. Boston Acoustics A40 Speaker Pair - $55 (Lynnwood) < image 1 of 4 > 19820 40th Ave. W #118 near 198th St. SW make / manufacturer: Boston Acoustics model name / number: A40. • Avoid plugging the AC cable into an AC outlet that is also powering high consumption appliances such as electric heaters or … C $56.48. Of course, at … Even without further correction or averaging, the swept warble-tone response of the speaker was unusually smooth. When the woofer curve and the overall room curve were combined, the composite response curve was flat within ± 3 dB from 70 to 20,000 Hz and was essentially free of major holes or peaks at any frequency. Boston Acoustics A40 series 2 Only 6.5" Copy Woofer *** New Speaker *** MW-5065. is the speaker that put the fledgeling Boston Acoustics (founded by a pair of Henry Kloss disciples, so no great suprise that they sound and look similar to baby Advents) on the map. It was my first real introduction to quality sound that started a path that continues to this day. The FFT analysis showed only a ±6-dB variation up to 16,000 Hz-better than many speakers can do along any axis! The A40 is housed in a walnut-grain, vinyl-veneer cabinet with a black cloth grille on a molded plastic frame that snaps in place. Inferior Boston Acoustic Speaker Repair Kit From Another Supplier Norman Labs Speakers Repair and Re-foam: Norman Labs 432 Messages: 7. The Boston Acoustics A40 Speakers model was launched by Boston Acoustics the early 1980's and where probably Boston's most popular speaker. I have never found any of them to be on the bright side and have used each of these pairs at one time or another in a surround system with AR90's and/or AR9's. By 2000 the foam surrounds had given way. The microphone was located on the speaker axis 1 meter from the grille. Joined Aug 8, 2013 Messages 75 Reaction score 22. xdog. If you still have your A40s, keep them. Picture Information. Boston Acoustics A-40, A-120, A-400 mid, Speaker Parts Foam Repair Kit # FSK-6.5 Item Description The most common problem with speakers are rotted, torn or damaged surrounds. In respect to sound quality per dollar, the A40 is surely one of the most cost-effective speaker designs we have seen in recent times; we are impressed. Boston Acoustics supplied typical performance data for the A40 based on their own tests and production standards. Boston Acoustics A40 Series II - These are in great condition sonically. The New York Times has thoughtfully archived a great piece that it ran on these great speakers from an earlier time: http://www.nytimes.com/1982/07/25/arts/sound-low-cost-speakers-overcome-their-drawbacks.html. more ads by this user . By 2000 the foam surrounds had given way. The speakers in the under-$100 category that are most often chosen for budget systems generally fall short of meeting minimum high-fidelity standards. I was almost 19 at the time. Submitted by Anon2 on May 14, 2013 - 7:25pm. From United States.