The AR48S represent the last of Acoustic Research classic series of speakers and were introduced in the final year of the Golden Age of Audio in 1981. They were offered until around 1983. Note the AR48S should not to be confused with the post-classic AR48B and AR48BX speakers produced later. Sporting a 10 Acoustic Suspension Woofer, 4 inch Mid-Range and 1 inch Dome Tweeter and were designed for amplifiers rated between 15 & 100Watts. As a 3-way AR48 is the natural evolution of the AR2ax and saw improvements with brighter sound and excellent dispersion characteristics.

Specifications

Type: 3 way, 3 driver loudspeaker system

Frequency Response: 45Hz to 24kHz

Recommended Amplifier: 100W (maximum)

Crossover Frequency: 400, 2500Hz

Impedance: 6Ω

Sensitivity: 87dB

Bass: 1 x 250mm cone

Midrange: 1 x 100mm cone

Tweeter: 1 x 25mm liquid cooled dome

Enclosure: 37.5 litre, acoustic suspension

Finish: walnut grain vinyl

Dimensions: 635 x 354 x 275mm

Weight: 17.2kg