I would say try to go no less than 4" if possible. I used some DIY brackets with nice plastic covers to hide the wires, I picked up at Menards. I believe I have about 6" or so of clearance and it works fine.

Current Qs8's


Back when I had the mansfield color...


M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85