Alto Professional TS18S

The Alto Professional TS18S offers a rock-solid solution for bass-deficient PA systems. This powered subwoofer’s high-efficiency Class D amplifier delivers a hefty 2,500 watts of rafter-shaking low end via a premium 18-inch driver with a 3-inch high-temperature voice coil. The TS18S integrates effortlessly into any live sound setup, boasting dual combo inputs and XLR outputs, dual XLR thru ports for linking, user-selectable EQ presets, and a phase alignment switch. This active sub is eminently roadworthy as well, sporting a rugged, internally braced, front-ported MDF cabinet with an integrated 36mm pole socket, a mark-resistant splatter-spray finish, and comprehensive protection circuitry. The Alto Professional TS18S is a surefire method for upgrading an underperforming sound reinforcement system.

2,500 watts of thunderous low end

Armed with 2,500 muscular watts of Class D power, the TS18S is one of the most formidable active subwoofers in its class. The TS18S comes loaded with a premium 18-inch driver featuring a 3-inch high-temperature voice coil, yielding thunderous low end all the way down to 29Hz. Show after show, night after night, the TS18S is engineered to elevate the low-frequency output of any live performance in permanent install scenarios and mobile setups alike.

Brimming with high-tech features

Here at Sweetwater, we’re impressed with how much functionality Alto Professional packed into the TS18S. For starters, it includes two combo inputs that accommodate XLR and 1/4-inch connectors. You also get two balanced XLR line outputs and two XLR thru ports for linking. User-selectable EQ tunings automatically tailor the TS18S for various applications. A phase alignment selector switch rounds out this sub’s outstanding feature set.

Engineered to withstand the rigors of live performance

The TS18S is a powered subwoofer built to last. It’s housed in a near-bulletproof, internally braced, front-ported MDF cabinet with an integrated 36mm pole socket for simplified speaker installation. Its mark-resistant splatter-spray finish will continue to look great, even after several seasons of punishing use. You also get electronic clip, thermal, and transducer overdrive protection to safeguard your sub against all sorts of road-borne hazards.