Rolls RA53B 5-Channel 1/2 Space Rackmount Stereo Headphone AmplifierThe Rolls RA53B is a 5 channel, 1 2 space, rackmountable stereo headphone amplifier featuring 1 4" TRS and 1 8" stereo mini simultaneous outputs for each channel. Two units may be linked for 10 channel, 6 insert operation, and a total of 3 channel inserts enable direct access to channels 1,2 and 3, potentially feeding 3 independent stereo mixes to those channels. The RA53B is inexpensive, ruggedly built, and equally viable as a multi client stage or