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SOLD items 2009 archive 2 product details :
AR94s
front speakers - 2nd pair
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Acoustic Research AR94s speakers |
AR94s : right profile |
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Acoustic Research AR94s : mid bass and woofer closeup |
AR94s speakers : AVICO dome tweeter closeup |
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Acoustic Research AR94s : footer speaker connections - posts to be improved |
AR94s top view |
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SOLD
November 2009 by email request and demonstration, to Auckland |
S/Ns: U025130 / 172 walnut tops |
Acoustic Research AR94s front speakers 2nd pair specifications
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Acoustic Research AR94s tower front speakers - 2nd pair :
Acoustic Research
invented many of the standard features that are used in all speakers today such as the acoustic
suspension(sealed cabinet), bass reflex(air-ported type), passive bass radiator as used in this 94
model, and dome tweeters. This design was the first to use the method of 2.5 speakers – meaning that the
lower bass driver is matched to take over from the mid / bass driver and radiate more energy at lower
frequencies : now standard for home theatre fronts
The AR94s are tall at 80cm and so are suitable for home theatre fronts. The sound characteristic is detailed,
open and transparent and at only 87 dB / 1W / 1m they are not very efficient. There is also a low impedance
dip down to 2.9 ohms which makes these speakers require an amplifier with a tolerant output impedance and a
decent power supply to drive them.
By this, we mean that you will still get reasonable sound volume from 20 – 30W amps but for parties
or a large room we are talking 80 – 150W for full range. A caveat here is that these speakers are better
suited to Jazz, instrumental or classical music than for high power rock. Just as valve amplifiers seem to
have deep reserves of power and scale the perceived volume gently, these speakers will handle a fair range
of the volume knob and get louder gradually. This has the advantage of giving you finer control of the volume
suited to a given music type
The grille cloth design and speaker termination methods are also unique. The wooden top screws off to reveal
that the cloth is fixed as a bag. Removing the plastic speaker foot reveals also that the speaker wire has a
small slot to enter so that the unit sits flat and the wire hides neatly behind the speaker – a nice feature.
The grille cloth is done up like a bag with a securing cord – you simply loosen this and roll the cloth
toward the top for cleaning or replacement or to inspect the drivers.
The crossover design is very basic which also means that there are gentle phase transitions between the
drivers and that the designers have selected the driver electrical and mechanical characteristics
carefully.
Specifications :
-:®:- System : 3 way, 3 driver
-:®:- Drivers : 8" woofer, 8" midrange/woofer, 1.25" cone tweeter
-:®:- Efficiency : 87dB @ 1W / 1m
-:®:- Nominal impedance : 6 ohms
-:®:- Power rating : 15W - 125W
-:®:- Frequency response : 44Hz - 22kHz
-:®:- Dimensions - [ H x W x D ]: 778 x 356 x 273mm
-:®:- Weight : unpacked 20kg
-:®:- Cosmetic : black acoustic cloth all sides, wooden removable tops
-:®:- Convenient speaker connection via grey plastic footer with speaker input
groove as shown.
SOLD
November 2009 by email request and demonstration, to Auckland
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