We have an isolated tracking room, professionally built and acoustically treated with a mixture of London Acoustics bass traps, London Acoustics panels, and London Acoustics square panels strategically spaced and placed to trap in sound waves that would otherwise bounce off of the walls if left untreated. The engineers suit is also acoustically treated with a mixture of London Acoustics panels,  Auralex foam squares, and bass traps. We have three different systems to listen back and three different ways to listen back; mono, stereo, and surround.