Crown 135MA Commercial Mixer Amplifier Ceiling Speaker Kit

The Crown Audio 135MA Mixer/Amplifier bundle pairs a versatile commercial-grade amplifier with two Bogen ceiling speaker assemblies to create a ready-to-install audio system for business environments. The 135MA itself is a three-input mixer and 35W amplifier in a single compact chassis. Its balanced Phoenix input accommodates professional paging microphones or line-level sources, while stereo RCA inputs handle music players, computers, or music-on-hold feeds from phone systems. The amplifier outputs at 8 ohm for direct speaker connections or at 70V/100V for distributed commercial speaker lines, giving installers flexibility regardless of the building's existing wiring infrastructure.

A key feature for commercial use is the built-in priority muting system, which can be triggered by voice activation (VOX) or an external contact closure switch. When a paging signal is detected, background music automatically ducks so announcements come through clearly — a must-have for retail floors, medical offices, and warehouse environments. Bass and treble tone controls provide basic EQ adjustment directly on the unit. The two included Bogen ceiling speakers are rated at 4W each with a 50 Hz to 12 kHz frequency response, suitable for speech intelligibility and light background music in rooms up to moderate size. With 35W of available power, there is headroom to add additional ceiling speakers to the line if coverage needs to expand beyond the initial two-speaker setup.