Altec Lansing 1205A is a two-way theatre type speaker system with an input sensitivity of 0.5 vrms for rated output and a power rating of 85 watts rms (220 watts peak music power). It incorporates a built-in solid state 100 percent silicon amplifier rated at 85 watts. The high frequency section consists of a compression-type driver, coupled to a straight cast aluminum sectoral horn and an innovative diaphragm assembly. The enclosure is made of 3/4” plywood with vinyl Lavant coverings and vinyl edge bumpers. It is fitted with casters and side handles for ease of handling.