LD Systems IMA 120 Installation Mixing Amplifier 120W @ 4 Ohms / 100 V / 70 VPermanent installations require solutions which offer a visually discrete design that blends into the background while still being flexible and versatile in their functions. You need to be able to connect different audio sources and manage them, to mute non priority signals during announcements or emergency calls. With IMA 120, LD Systems presents a new model of the IMA mixing amplifier series, which leaves nothing to be desired in terms of design and