Alto Professional TS12S – Professional Subwoofer for Demanding Audio Installations In professional sound reinforcement, every detail of the sound matters, and the perfect reproduction of low frequencies forms the foundation of a successful performance. The Alto Professional TS12S is the most powerful active subwoofer in the manufacturer's lineup, delivering incredibly deep, dynamic bass with a peak power of 2500W. This subwoofer is designed as the foundation of any sound system, ensuring perfect balance between high, mid, and low frequencies. Thanks to its high-performance Class D amplifier, this unit brings concert halls to life, fills music clubs with bass, and elevates instrumental performances in places of worship to a completely new level of quality. Product Features The TS12S subwoofer stands out with a range of professional technical solutions: 2500W peak power at 4Ω load – sufficient for the most demanding installations 12-inch (305mm) driver with a 3-inch (76.2mm) high-temperature voice coil – precise low-frequency reproduction Class D amplifier – high energy efficiency with minimal heat generation Maximum SPL: 130 dB @1m – powerful, loud sound Frequency response: 44 Hz–95 Hz (-3 dB), extended to 38 Hz–110 Hz (-10 dB) MDF enclosure with internal bracing – elimination of unwanted resonances Splatter-spray resistant coating – durability in concert conditions Full Control Over Sound Professional sound reinforcement requires flexibility, which the Alto TS12S provides through its versatile onboard electronics switches. The intuitive phase selector (0°/90°/180°/270°) allows for precise time alignment of the subwoofer with full-range speakers, eliminating phase cancellation issues. Three EQ modes allow for quick adjustment of the bass character to suit different types of performances – the Off mode provides neutral sound, Live adds energy and clarity, and DJ boosts low frequencies for a characteristic club sound. Dedicated input and output paths enable seamless integration with any full-range speakers, including the TrueSonic series from Alto Professional. Applications Concert halls and amphitheaters – powerful instrumental and vocal reinforcement Music clubs and discos – deep, pulsating bass defining the party atmosphere Places of worship and sacred venues – clean reinforcement of choral music and organs Fixed installations in restaurants, bars, and event spaces Portable sound systems – durable construction resistant to transport Corporate events and conferences – professional reinforcement of presentations and performances Detailed Technical Specifications Output power: 2500W peak @4Ω Low-frequency transducer: 12" (305mm) woofer; 3" (76.2mm) high-temperature voice coil Frequency response: 44 Hz–95 Hz (-3 dB) Frequency range: 38 Hz–110 Hz (-10 dB) Maximum SPL: 130 dB (@1m) Inputs: (2) XLR+1/4" (6.35mm) combo Outputs: (2) XLR Power connector: Standard IEC Input voltage: 100-120V, 50/60 Hz; 220-240V AC 50/60 Hz Power consumption: 1600W Fuse: 100-120V: T15AL AC250V; 220-240V: T8AL AC250V Dimensions: 454.7 x 459.7 x 505.5 mm (H x W x D) Weight: 25.9 kg Materials and Construction The Alto Professional TS12S enclosure is made of MDF panels with an internal bracing system, guaranteeing structural rigidity while simultaneously controlling resonances. Every vibration is precisely managed, eliminating unwanted crackling and buzzing. The scratch-resistant splatter-spray finish ensures resistance to dirt and wear, which is crucial in intensively used concert installations. The top panel is equipped with a 36 mm socket for direct mounting of full-range speakers, creating a stable and secure sound reinforcement stack. Package Contents Alto Professional TS12S active subwoofer IEC power cable User manual Summary The Alto Professional TS12S is an active subwoofer that meets the expectations of the most demanding sound engineers and sound system installers. The combination of powerful 2500W output, a precise 12-inch driver, and advanced control electronics makes it the foundation of any professional audio system. Whether you are managing an intimate event in a place of worship, a dynamic night in a music club, or a monumental concert tour – the TS12S will deliver bass that moves the audience and adds unforgettable character to your performance. Choose equipment you can rely on in every situation.