Photos: Studio Instrument Rentals (SIR)

Dolph Rempp, co-founder of Studio Instrument Rentals (SIR), checks out one of many make-up/dressing rooms offered to musicians who rent studio space at the flagship headquarters on Sunset Boulevard.

Dolph Rempp, co-founder of Studio Instrument Rentals (SIR), is dwarfed by the variety of drums available for rent.

A variety of guitars hang in a display case at Studio Instrument Rentals (SIR).

Backline technician Matthew Giordano checks an electric guitar on its return to Studio Instrument Rentals (SIR).

Ken Berry, left, and Dolph Rempp, co-founders of Studio Instrument Rentals (SIR), which is now celebrating its 50th year in business on Sunset Boulevard in Los Angeles.

Employees of Studio Instrument Rentals (SIR) gather for a photo in the early days of the business.