Rolls Corporation is an innovative audio electronics manufacturer specializing in interface accessories, mixers, amplifiers, signal processors and signal sources.
The HR74 MP3 Player was designed to be easy to operate, even with out a manual. The unit is ideal for installations or anywhere a durable MP... more
The Rolls HRD342 is intended for low cost, simple, time alignment of speakers in larger rooms or outdoors. The delay dial is shown in mili s... more