You found this speaker? Clean it!
We frequently receive images of old, dusty speakers that some lucky owner found in his or her garage after decades of storage. Others purchased an old set of speakers for little money at a garage sale. Our advice: Don´t let them deteriorate, but also don´t scratch them with the wrong tools.
Instead: Clean them carefully. Get a set of soft brushes and other cleaning utensils. If the wooden speaker cabinets look dull or out of color (e.g. due to sunlight), give the wood some new life:
1. wipe off the dust . 2. take a very fine sandpaper (1000 Grit and finer) and to sand down the wood. 3. Use an oil finish, ideally "natural" to maintain the original wood color, such as Tried and True danish Oil.
Why was the AR-8 a failure? History Lesson!The AR-8 speaker did not sell in big numbers and there are different reasons that might have caused the low sales. In any case, the failure of the AR-8 was a symptom for a change and a new challenge for the high fidelity industry. Two reasons are retrospectively most striking:
Reason #1:AR Failed to adopt to new marketDuring the 1960ies and 70ies, the main target group for high fidelity sound equipment was mid-aged men. However, in the mid 70ies, a new customer group entered the market; young people, looking for modern, affordable speakers to listen to loud, modern music. Other brands developed speakers specifically for this new customer group, but AR missed to do so effectively.
The quote at the beginning of this article and in particular the AR-8´s main slogan ”The first accurate speaker for rock music” indicate that the Acoustic Research tried to target young consumers. Young college students typically liked the upcoming rock music. This does also explain why the AR-8 has a punchier, 10 inch woofer, instead of the AR-7´s 8 inch woofer.
Acoustic Research tried to blend in with the other manufacturers, such as Advent, who experienced great profits with their fresh, modern loudspeakers. The slogan “The first accurate speaker for rock music” shows very well, how Acoustic Research tried to be young and modern on the one hand, but to rest on the own successful history and brand image, which resembled unmet accuracy and advanced technology on the other hand. This did not work out and caused the AR-8 to not meet the market demands.
|The AR-8 from 1973/4|
Reason #2: The AR-8 cannibalized the AR-7Another reason for the failure might be found within the own product line of Acoustic Research. As mentioned in the paragraph above, the Acoustic Research offered a very similar speaker when it comes to sound quality and performance, the smaller AR-7. The two speakers were targeting a different target group, but had very similar specs, which caused potential customers to choose between the small AR-7 and the bigger AR-8. However, the AR-7 was available for only $75, which was an incredible 35% less expensive. Therefore, the AR-7 became a much bigger success and sold in much bigger numbers. The AR-8 did also enter the market as the last model of the classic AR speaker series, nearly a year later than the AR-7.
Acoustic Research AR-8 Specs:Frequency division, at 1800 Hz, is handled by an internal network. On the rear panel there´s a recessed section that contains the input terminals (a pair of knurled-nut-and-screw posts that accept stripped leads or leads fitted with spade lugs) marked for polarity, and a three position toggle switch that adjusts the relative level of the highs.
The AR-8 is rated for 8 Ohms impedance, minimum recommended amplifier power is 15 watts per channel. In tests at CBS Labs the AR-8´s impedance measured 7 ohms just past the characteristic bass rise and it averaged a very smooth 8 ohms all across the range to beyond 20 kHz. All in all, the AR-8 speaker received good performance marks for a speaker in its price class. The AR-8 in general is of higher efficiency than many previous AR systems (before 1973), but its ultimate power-handling ability is only a bit less. It needs 2.8 watts to produce the standard test output signal of 94 dB. It handles steady-state power inputs of 50 watts before “buzzing” to produce an output of 106db. Middles and highs are well dispersed, with no serious directional effects noticeable until 10 kHz.
AR-8B, AR-8Bx and AR-8xi:It is also important to note that it had several successors. The original AR-8 speaker was not too successful, but later models from the mid 1980ies, such as the AR-8B, AR-8Bx and AR-8xi have been. However, those later speakers were 6 ½ inch two-way speakers and substantially different to the original AR-8. Compare the AR-8 specs at the bottom, if you are not sure, which model you are looking for.
Acoustic Research AR-8 Specs:
Drive Units: 10" (254mm) acoustic suspension woofer; 1 1/4" (32mm) wide dispersion cone tweeter
Impedance: 8 Ohms
Controls:High frequency level adjustment (three position switch)
Amplifier:Minimum recommended amplifier power is 15 watts RMS per channel
Size:13 1/2" x 24" x 11 1/2" deep; 343 x 610 x 282mm deep
Weight:32 pounds; 14.5 kg
Woofer resonance:Free air 26 Hz; in enclosure 52 Hz
Volume of enclosure: 38.2 litres (1.35 cu ft)
(Depending on overall condition)