Vintage King Audio technician Jeff Spatafora looks over a refurbished Neve 8078 audio mixer at its warehouse in Ferndale. Vintage King specializes in providing vintage equipment to studios across the country. / Jarrad Henderson/Detroit Free Press

Vintage King Audio technician Jeff Spatafora looks over a refurbished Neve 8078 audio mixer at its warehouse in Ferndale. Vintage King specializes in providing vintage equipment to studios across the country. / Jarrad Henderson/Detroit Free Press

Vintage King Audio technician Jeff Spatafora looks over a refurbished Neve 8078 audio mixer at its warehouse in Ferndale. Vintage King specializes in providing vintage equipment to studios across the country. / Jarrad Henderson/Detroit Free Press

Mark Bass is co-owner of F.B.T. studio, which has hosted work by Eminem, D12, T.I. and the Dramatics. Bass, who has started a label called Motunes Media, says he's mixing new material by Sly Stone and members of the original Family Stone. Jarrad Henderson/Detroit Free Press