What is stereo?

There are now two system of high fidelity, monophonic (monaural) and stereophonic. Monophonic is a system that starts from one microphone and is fed through a single high fidelity set. Stereophonic is a double system. Two separate microphones are placed at different sides of the orchestra and two different systems are used to keep the two signals or channels separated. Two separate speakers are used, placed on different sides of you room. Stereo is much like 3-D photography, two slightly different sound reach your ears giving you a new dimension in sound.

H.H. Scott '59

Acoustic Research AR-2ax

 The AR-2ax are lower cost versions of our basic acoustic suspension design. Each has a 10-inch bass speaker, mounted in an acoustically sealed enclosure filled with glass wool, and in addition , a small, high-dispersion cone speaker. In the AR-2ax there is a third speaker, a ¾-inch hemisphere for very high frequencies, the same unit as is used for this purpose in the AR-3a. Separate controls on the back of the AR-2ax permit independent adjustment of the level of the midrange and high frequency speakers.
 The performance standard in the design of the AR-2ax was the same as that for the AR-3a; natural reproduction of music without exaggeration or artificiality of sound. But where quality in the case of the AR-3a hes been limited only by the state of the art.  And our own engineering skill, here price is also a consideration.

"… the low-frequency speaker has exceptionally low bass distortion … the tone burst response of the AR-2ax gave further evidence of its excellent quality … comes remarkably close to matching the AR-3."
HiFi Stereo Review

Specifications  AR-2ax
Sensitivity:  91,5 dB
Response:  42 Hz to 20,000 Hz (± 2 dB)
Recommended Amplifier Power:  20 watts RMS,
Minimum impedance:  8 ohms
Woofer resonance:
Free air  :  26 Hz
In enclosure 56 Hz
Speaker Complement:
Woofer : 10" acoustic suspension
Midrange : 3 ½" cone
Tweeter : ¾" hemispherical dome
Crossover Frequencies:  1400 Hz/5000 Hz
Controls:  Independent midrange and high-frequency adjustments
Volume of enclosure:  38.2 litres (1.35 cu ft)
Dimensions:  13 ½" x 24" x 11 ½"
Weight:  16,6 kg (36,5 lbs)

Finish:  Glossy or oiled walnut, cherry, oiled teak, mahogany, birch and unfinished pine.

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