SPL IRON V2 two channel (switchable to stereo) compressor: the tube cathode voltage adjusts according to your adjustments, which allows for varying the results and get very subtle compression. Plus, the device features 6 rectifying tubes.Each channel of the Iron compressor has a threshold, attack, release, input and output level controls, as well as a bias 3-position switch.It also features two Airbass and Tape Roll Off filters for different timbres and a Sidechain function with 4 filters is also available. Last, each channel has its own VU-meter with 3-way calibration switch.The SPL Iron has a 19” 3U rack size.include original flight case,Dimensions (W x H x D): 482 x 177 x 300 mm,Weight: 11 kg