This all-in-one portable PA speaker features a 3-channel mixer. For the first 2 channels (balanced XLR/TRS combo inputs), in addition to adjusting the volume level parameter, it is possible to adjust tone, reverb and customize ToneMatch presets (vocal, acoustic guitar, off). On channel 3, meanwhile, it's possible to stream music via Bluetooth 4.2 (or via the dedicated Bose Connect app), or with the use of a 3.5-millimeter jack (AUX).
The S1 Pro system also has a line output to allow expansion to other systems, and a MicroUSB service port.
The Bose S1 Pro features a 6-inch woofer and three 2.25-inch drivers with a total RMS power of 160 watts, which will cover an event for about 50 people.
Maximum SPL is 103dB, and the coverage angle is 100° for horizontal and 40° for vertical. The wireless communication range is up to 9 meters.