• 2500W peak power
• Highly efficient Class D amplifier
• Transducer: 18-inch driver with 3-inch high-temperature voice coil
• (2) XLR+1/4-inch combo inputs
• (2) XLR thru outputs for linking
• User-selectable EQ presets (Off, Live, DJ)
• Phase alignment switch (0°/90°/180°/270°)
• Rugged, internally braced MDF cabinet with front port and integrated 36 mm pole mount
• Splash-resistant finish that always looks great, even under heavy use
• Electronic clip, thermal and transducer overdrive protection
• Designed and tuned in the USA

The best performances demand the best sound reinforcement at every end of the audio spectrum. For tight, punchy low-end, look no further than the Alto Professional TS18S active subwoofer. Adding the TS18S to your full-range speaker setup delivers powerful yet controlled low-end presence to your PA configuration for a complete listening experience in the modern public music venue. With an active subwoofer, every musical performance takes a major leap forward in tonal balance, with the perfect mix of high, mid and extended low frequencies.