Symetrix Airtools 6100 Broadcast Audio Delay With Upto 40 Seconds Delay, Aes, Analog, Timecode
Symetrix airtools 6100 broadcast audio delay with upto 40 seconds delay, aes, analog, timecode inputs etc can delay upto 40 seconds more info at http://www.symetrix.co/repository/6100_ug.pdf The 61

Symetrix 581E 4X4 Audio DA With Output Control
Symetrix 581e 4x4 audio DA with output control (max 16 outputs) rear connectors are not included The Symetrix 581E Distribution Amplifier (4x4) is a four-input, sixteen-output distribution amplifier

Symetrix Sx204 4Ch Headphone Amplfier
Symetrix sx204 4ch headphone amplfier no power supply included (untested due to this)