Acoustic Research AR 25 Speakers 2 Way 50 Watts RMS Vintage 1979 Work Good Look. The description of this item has been automatically translated. Two Way Loudspeaker System (1979). All Refurbished WORK PERFECT. Type: 2 way, 2 driver loudspeaker system. Frequency Response: 40Hz to 25kHz. Recommended Amplifier: 15 to 60W. Bass: 1 x 200mm acoustic suspension. Tweeter: 1 x 32mm pressure. Dimensions: 298 x 544 x 197mm. Capacidad de la batería. Altavoz Frontal Derecho e Izquierdo.