My pedalboard has Seymour Duncan SFX-1 Pickup Booster for pickup enhancement, a Decibel Eleven Loop Expander, with a Class A buffer, that has a Behringer AM100 Acoustic Modeler in loop #1, a Boss GE-7 band Eq, EHX Ravish Sitar Simulator, a MXR 10 band Eq. Then it goes into a Digitech RP-12 ( MIDI controller ), the a BBE Stomp Sonic pedal, then a Digitech RP-1 with an Arion Hott Watt 2 in the effects loop of the RP-1, then to another Seymour Duncan SFX-1 Pickup Booster to drive my signal stronger to my rack unit and finally a Mosky Pure Buffer. My rack has a Hush / Rocktron 2CX Noise Reduction unit and two BBE 462 Sonic Maximizers , a Behringer 1124P for it 12 band parametric Eq that handles the frequencies my two DOD 31 ba d Eq's don't handle and I have Ebtech Hum Eliminators between each unit to kill any potential hum issues . My main Rack Processor, is a Digitech 2112 SGS, with seemsless / glitches patch changes, has two 12ax7 tubes that emulate my old Fender Twin Reverb or Princeton, VHT Pitbull, Carvin X-100 B, Marshall JCM 800, Mesa Boogie Mark 5 or Carvin Legacy 1,2 and 3. From the balanced outputs of my 2112, it goes into two VHT Valvulator 1's ( each w/ 12ax7 tube before going into two Crate Power Blocks .