Alto SX 12 Passive Loudspeaker

Alto SX 12 Passive Loudspeaker

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Quality Sound Meets Rugged Design

Road Ready

Built to take a beating night after night, week after week, the SX112 features a heavy-duty steel grill that is built to last, and is covered in a ruggedized black textured finish that is scratch and dent resistant. Recessed handles makes the SX112 easy and safe to move from rehearsal space to stage and back again while heavy-duty rubber feet ensure that it stays put no matter how much volume you pump through it. Its full-length metal grille protects the drivers and horns from falling mic stands or other pitfalls of repeated stage use.

Superior Sound Quality

The SX112 delivers a big sound with a high-performance 12-inch LF driver (2-inch voice coil), and an exacting 1-inch HF driver. What's more, it utilizes a trapezoidal design which greatly decreases the resonance of the standing wave in the cabinet for a more true and exact sound reproduction. The SX112 is the perfect solution for club installations, rehearsal spaces, gigging musicians, mobile DJs, and houses of worship who need additional sound reinforcement.


  • 800 Watts peak power rating
  • 400 Watts program / 200 Watts continuous
  • 12" low-frequency transducer
  • 1” neodymium high-frequency driver
  • Full-length metal grille
  • Two parallel Speakon NL4 jacks for input and through connections
  • Lightweight, trapezoidal cabinet with handles
  • Rugged, black textured finish


  • Continuous Power: 200 Watts
  • Program Power: 400 Watts
  • Peak Power: 800 Watts
  • Max SPL at 1m: 119 dB Program / 122 dB Peak
  • Frequency Response (-10dB): 65 Hz-20 kHz
  • Impedance: 8 Ohms Nominal
  • Crossover Frequency: 2.5 kHz /12 dB / Octave
  • Protection: Electronic dynamic protection
  • Low Frequency Driver: 12" Woofer / 2" Voice coil
  • High Frequency Driver: 1" neodymium driver / 1" voice coil
  • Coverage (H x V): 90° H x 60° V elliptical wave guide
  • Connectors: 2 x SPK4 @Power Input / Link
  • Cabinet: Trapezoidal shape, composite wood, metal handle, black paint finish
  • Dimensions (WxLxH): 650mm x 400mm x 365mm
  • Weight: 43.87 lb

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