Line Source



SB17 is an extension module for low-frequency reinforcement of line array ST17.

Speaker Power

700 W (AES) - 8 Ohms
• Horizontal Omni
for single element
(dB 1 Watt @ 1m)

• BF active 98dB
123 dB AES SPL calculated 
130 dB PEAK SPL calculated

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It is ideal for creating a vertical array systems with a ratio of one sub with two  ST17. SB17 can be used as main system in the wider range of professional audio applications. 


The LSS SB17  ultra-compact design is intended to fulfil the highest demands of audio professionals and delivers the ultimate performance level in its category and meets the demands of both the fixed installation and rental production markets. SB17 is the ideal complement to the ST17 to extend the response up to 150 Hz. SB17 is extremly lightweight and compact and virtually invisible the integrated rigging system, combines extremely quick set up and system integration with significant savings on storage and handling logistics. ST17 and SB17 are ideal with rigging limitations in theatres, performing art centres, concert halls, convention centres, sport facilities, and TV/Broadcast studios, with the added bonus of being stealth philosophy.

  • 12" LF Neodymium in Vented Enclosure
  • Fly Mounting Hardware Included
  • Powering Mode: BF ( with External Digital Crossover and External Amplifier)
  • For Touring or Fixed Installation


Dimensions mm (±1 mm)
• Height 460
• Front Width 580
• Rear Width 476
• Trapezoid Angle (degrees) 5° per side

Weights Kilograms
• Net Weight(including flying hardware) 25
• Shipping Weight 29
•System Configuration Active with digital controller

Enclosure Material

• Enclosure material: Birch Plywood of 15mm
• Finish: Texture poliuretanic black paint
• Suspension: 3 point mounting suspension
• Grille: Powder coated perforated steel
• Connectors: Two Neutrik NL4 Speakon
• Optional Accessories Flygth Case for two SB17


Frequency Response
• ±3 dB 40Hz to 150Hz
• -10 dB 35Hz

Sensitivity (dB 1 Watt @ 1 m)

• Full Range Passive 98dB
• LF 98dB

Nominal Input Impedance (Ohms)

• Full Range Passive 8

Power Handling (Watts cont. AES)

• LF 700

SPL (referenced to 1 m 1W)

• Full Range Passive 98dB

Nominal Dispersion (degrees @ - 6 dB)

• Horizontal Omni for single element
• Vertical Omni for single element


• Product Series STEALTH
• LF Subsystem & Loading One 320 mm (12")/100 mm (4")  voice coil Neodimnyum woofer vented
• Operating Mode Active (with digital processor)


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