Alto Professional TS215 | 15" 2-Way Powered Loudspeaker with Integrated Mixer (1100W Peak / 550W Continuous) New model of professional-grade 15-inch Truesonic loudspeaker for venues, events, gigs, and get-togethers Re-engineered from ground up to enhance power output and sound clarity Redesign improves durability, decreases weight, and adds handles for easier transport Fanless, passive cooling  speaker runs cleaner, quieter and has greater long-term reliability Maintains previous features such as built-in two-channel mixer, two XLR inputs and two 1/4" mic/line inputs