The JOYO Preamp House delivers 9 classic guitar amp preamps in one pedal! Turn the dial to select the amp simulation and you can switch from a vintage fendery clean to a dirty Mesa-ry drive, 9 different amps & 2 channels. We dropped in a built in Impulse Response loaded 4 x 12 cab simulation with 3 controls to turn it off or switch it between the 6.35 out or the balanced XLR output. The Headphone out uses the cab simulation all the time. Each preamp has 2 channels, clean / distortion and allows you to save your settings on both channels for all amps. Select between the 2 amp settings Clean or Distortion using the A & B footswitch, pressing both together will give you Bypass mode. The guitar pedal has a built in FX LOOP interface for external FX pedals so you can position your modulation, delay, reverb and Eq as you would with your classic head. The JOYO Preamp House is a user friendly tone solution, the design is a result of 10 years of our best selling amp simulator guitar effect pedals. The JOYO AmpHouse transforms those classic & vintage guitar amp tones we crave straight onto your board and into your ears, without the expensive amp ! JOYO Amp Simulators can be used as a DI (Direct Interface) directly into a mixing console, audio recording interface, or in front of a clean amp for a tonal drive, pushing your existing amp to a whole new level.