Vrack Series VRack EQ4P FX2 MP1a MX2 MX5.1 SM1 SM2 TXC CR2 AUX1 TB1 TR8 FD1/FD2 19" Rack Gear Equalux OTB16 Tilt 500 Series TX5C EQ5P MP5a V4 Rack X4 Expander TX4 Expander Consoles Frames Shadowmix The Model 1628 Special Technical Information on Tonelux OpAmps