Skip Navigation Website Accessibility
  Our Planet Needs More Musicians

Alto TS12S 2500W 12" TS4 Series Powered Subwoofer


Add to Cart
Rock-Solid Sound from the Bottom, Up
The best performances need the best in sound reinforcement at all ends of the sonic spectrum. For tight, punchy low-end look no further than the Alto Professional TS12S powered subwoofer. When added to your full-range speaker setup, the TS12S subwoofer delivers powerful but controlled low-end presence to your PA configuration for a full and complete listening experience for the modern public music space. With a powered subwoofer, any musical performance will take a giant leap into the realm of tonal balance with the perfect blend of hi, mid, and extended low-end frequencies.

The Most Powerful Subwoofer Yet
Sound reinforcement needs can change from night to night but the best in the business count on reliable power at their disposal whenever its needed. The TS12S is Alto Professionals most powerful subwoofer yet, packing an incredible 2500 watts of power to make concert halls come alive, night clubs punch and pump, houses of worship lift-up instrumental performances, and more. Thanks to its high-efficiency Class D amplifier, TS12S adds the necessary heft and weight to any public performance for a balanced representation of musical artistry in any environment.

Carefully Built for Quality Performance
A structure is only as good as its foundation and your sound is no different. The TS12S subwoofer is built with reliable durability in mind to be the anchor of your setup and the anchor of your sound. Built with superior materials, the TS12S is engineered with a premium internally braced composite cabinet enclosure for tight, controlled sound. Enjoy all the thump and bump without the unnecessary rumbles and rattles. The key to low-end is clear definition for impactful sonic transmission and a carefully crafted enclosure ensures a truly unbiased sound delivery. With a premium 12-inch driver featuring a 3-inch, voice coil transducer, rest assured, the TS12S subwoofer is built to handle the rigors of live performance whether permanently installed or as part of a traveling setup, night after night.

A Subwoofer for Any Setting
What good is a sub if it doesnt play along nicely with the rest of your speaker setup? The TS12S is designed and engineered to fit into any system thanks to the versatile onboard electronics switches. Quickly bounce through the User-selectable EQ tunings to enable, boost, or bypass low end accentuation appropriately as different shows require. Use the intuitive Phase Alignment function as needed to make sure your tops and subs perform well no matter the setting or setup. With dedicated input and output paths, seamlessly connect your companion Alto Professional full-range loudspeakers or any other standard loudspeaker units.


• High-efficiency Class D amplifier
• Transducer: 12-inch driver with 3-inch high-temperature voice coil
• Rugged, internally-braced front-ported MDF cabinet with integrated 36mm pole socket
• Mark-resistant splatter-spray finish always looks good, even with heavy use
• Electronic clip, thermal and transducer overdrive protection


Output Power: 2500W peak @4 [oh,]
Transducer Low: 12" (305 mm) woofer; 3" (76.2 mm) high-temperature voice coil
Frequency Response: 44 Hz 140 Hz (- 3 dB)
Frequency Range: 38Hz152Hz(-10dB)
Maximum SPL: 130dB (@1m)
Connections: (2) XLR+1/4" (6.35 mm) inputs; (2) XLR outputs; (1) IEC power cable input
External Controls: Volume control, signal/clip limiter with LED, speaker use button, proximity button, power switch with LED
Electronic Protections: Electronic clip, thermal and transducer overdrive protection
Enclosure: Internally braced MDF cabinet; 36 mm mounting pole socket on top panel

Connection: Standard IEC cable
Input Voltage: 100-120, 50/60 Hz; 220-240 VAC 50/60 Hz
Consumption: 1600W
Fuse: 100-120V, T15AL AC250V; 220-240V, T8AL AC250V

Dimensions: 17.9 x 18.1 x 19.9" (454.7 x 459.7 x 505.5 mm)
Weight 57.1 lbs. (25.9 kg)