BST BST55-2.1 - 2.1 active sound system 1200 W RMS with 18″ subwoofer and 2 satellites on stands

BST BST55-2.1 – 1200 W RMS active 2.1 sound system with 18″ subwoofer and 2 satellites on stands

The BST55-2.1 is the ideal all-in-one solution for DJs, musicians, and mobile events that need a quick-to-set-up, durable sound system with wide coverage. Its 18″ (46 cm) 400W RMS subwoofer incorporates three 400W RMS Class D amplifiers (one for the subwoofer and one for each satellite), guaranteeing power and dynamics without distortion in deep bass. The two 400W RMS satellite speakers each mount three modules with dual 4″ (10 cm) midrange drivers and 1″ compression tweeter per module—a total of 6 midrange and 3 tweeters per satellite—for crystal-clear midrange and clear highs. The integrated DSP offers four pre-programmed profiles, displays, and signal, clipping, and limiter indicators that facilitate live tuning. With XLR connections for line input and output, two satellite outputs, and supplied with floor stands and cables, the BST55-2.1 combines versatility, quality and ease of use in a robust and reliable MDF cabinet.

Main features

• Active 2.1 configuration: 18″ subwoofer + 2 satellites on stands.
• Total RMS power: 1200 W (3 × 400 W Class D)
• Subwoofer: 18″ (46 cm) 400 W RMS, 92 oz magnet, 3″ (75.5 mm) voice coil.
• Satellites: 2 × 400 W RMS; each satellite with 3 modules (2 × 4″ midrange + 1 × 1″ tweeter)
• Integrated DSP: 4 pre-programmed profiles; easy-to-use display and control.
• Inputs/Outputs: 2 × XLR line IN/OUT; 2 × satellite outputs.
• Indicators: signal, clipping and limiter on rear panel.
• Construction: MDF cabinet with a durable finish; sturdy for touring.
• Included accessories: 2 floor stands and connecting cables.
• Sensitivity: 97 dB @1 W/1 m; Maximum SPL: 133 dB
• Total weight: 82.5 kg.

Product benefits

• Express installation: mounting of satellites on brackets and plug-and-play connections.
• Controlled power: Class D tri-amplification for deep bass and midrange/treble without clipping.
• Sound versatility: DSP with 4 presets for different musical styles and environments.
• Professional reliability: MDF cabinet and digital amplifiers ready for continuous use.

Use cases

• DJ sets and performances in clubs, pubs and festivals.
• Small concerts, corporate presentations, and outdoor events.
• Sound reinforcement for conferences and multipurpose rooms.
• Temporary installations at fairs, exhibitions and sporting events.

Frequently Asked Questions

• How long does it take to set up? Less than 5 minutes: snap in the satellites, connect the XLRs, and turn it on.
• Can I adjust the DSP? Yes; the four preprogrammed profiles cover most applications without having to touch any software.
• Does it include network cables? XLR cables for subs to satellites and line IN/OUT are included.

Description for projects

BST55-2.1 2.1 active system with 1,200 W RMS with 18″ subwoofer, 2 satellites of 400 W with 6 midrange and 3 tweeters each, DSP 4 presets, XLR IN/OUT, satellite outputs, signal and limiter indicators, MDF cabinet, stands and cables included.