The Urei 1178 is a stereo peak limiter which is similar to two 1176 Rev H in a single 2U enclosure. It lacks the Class-A amplifier and input transformer of more sought-after vintage 1176s, and joins the timing controls for both channels to one set of attack and release knobs. Though it does feature a switch to operate in dual mono, the lack of separate attack and release controls for each channel only makes it practical as a stereo unit.