CXL-400T 400W Toroidal Transformer on August 24, 2015 | Marketing Team he CXL-400T is a 400W 100V/70V toroidal transformer compatible with the Cloud VTX-4400 amplifier. The CXL-400T can also be used with other amplifiers to change low impedance output to high impedance. Related Products VTX4400 4 x 400W Amplifier