Эквалайзеры
DiscoEffect Light Studio Technics Turbosound BIG MARTIN (Дания) HKAudio Philips Electro-Voice APart (Бельгия) SANYO Allen & Heath DeliEffect OSRAM (Германия) Panasonic DB Technologies HALO JBL Professional Shure Polarlights Nightsun Crown (США) ACME Park Audio Pioneer