A solid concrete control room constructed in a watertight tank, with very little absorption and no bass trapping shouldn't have worked. It was the opposite of contemporary studio design, and yet the custom JBL speakers showed every detail in the sound and cutting engineers often cut discs with no equalisation. For a fuller account of the acoustics at The Mill, click on the gold disk to the right.

A complete custom MCI audio package (the largest outside the USA) was specified for The Mill, giving it arguably the best sounding analogue equipment ever made. For more details click on the gold disk to the right.

Vintage microphones were used extensively and very little outboard equipment was needed. Most of the gear was customised. For more details click on the gold disk to the right.