DigiTech RP200 Amp Models vs. Simplifier MK2 Analog Preamps. 

Thanks! Thats one of the things I love about having an FX loop on the Simplifier that I can treat like a real amp. You can use what ever amp or preamp you want and just use the MK2 Cab sims for the XLR outs and still pass the Cab Bypass out back to a real amp. So many options!