The IS Series are slim column array speakers designed to deliver high-quality speech and music in venues that require high intelligibility, low physical profile and wide, yet consistent coverage. Their durable all metal enclosures will withstand the rigors of portable use, as well as installation and an impedance switch (8Ω/32Ω) allows use for both 2/4 speaker or multiple speakers per channel (i.e.-distributed) configurations, without loading down the amplifier and without the need for transformers.