The de Lisle Dual Line Driver + is a great solution for multiple amp setups with longer cable runs. It features two buffered and transformer isolated outputs to eliminate ground loops and signal loss. These outputs also have individual phase switches. The direct out can be used to feed a third amp or tuner. The circuit runs on an internally boosted dual rail power supply for increased headroom and clarity (15vpp). 

The de Lisle Dual Line Driver + is hand-wired in the USA with no PCB mounted jacks, switches or plugs. This pedal is built to last and comes housed in a powder coated, laser etched aluminum enclosure. As always with every piece of de Lisle gear, it's back by a lifetime warranty for your peace of mind.