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Bose Professional AudioPack Pro System Package with Black Surface-Mount Loudspeakers | Model: S4B

Product Description

The Bose Professional AudioPack Pro S4B System Package with Black Surface-Mount Loudspeakers is a pre-configured professional audio package that combines compatible system components for a defined type of room or installation. Instead of selecting every loudspeaker, amplifier, processor, and accessory independently, the S4B gives the customer and installer a coordinated starting point. For a non-technical buyer, this reduces uncertainty: the core components are chosen to work together, while the installer can focus on placement, cabling, source connection, and commissioning.

A system pack does not remove the need for a site assessment. Room size, ceiling height, background noise, listening distance, mounting surfaces, local electrical rules, and the number of audience areas still affect whether the package is suitable. However, a matched package can simplify quotations, reduce compatibility mistakes, and make it easier to repeat a proven design across several similar rooms or business locations. The specification section below lists the supplied system characteristics and component-related data published by the manufacturer.

Source and input requirements should be confirmed during system planning. The number of output zones and loudspeaker circuits depends on the package configuration. The installer should also confirm what is included in the box, what mounting or cabling accessories are separate, how users will control volume and source selection, and whether additional microphones, displays, network switches, or furniture interfaces are required.

The S4B is a practical choice for organizations that want a professional result with a simpler specification process. It can suit meeting, learning, retail, hospitality, presentation, or small performance environments, depending on the exact package. It is especially useful when several similar spaces need a consistent standard. Before ordering, compare the room requirements with the detailed product data and confirm the final installation design with a qualified integrator.

Suitable Use Scenarios

  • Small commercial rooms that need a complete, coordinated sound system without selecting every component separately
  • Meeting, teaching, retail, hospitality, or presentation spaces that need faster specification and installation
  • Projects where a pre-matched combination reduces compatibility questions for the installer and customer
  • Sites that need a practical path from source connection to amplification and loudspeaker output
  • Organizations that want consistent results across several similar rooms or locations

Product Specifications

Electrical

Current Draw, Inrush 7.6 A at 120 VAC, 60 Hz / 13.9 A at 230 VAC, 50 Hz
Mains Connector IEC C14 inlet
Mains Voltage 100-240 VAC (±10%), 50/60 Hz
Protections High temperature, short circuit
AC Power Consumption 15 W idle, 200 W maximum

Indicators And Controls

Controls, Front Panel (1) power switch, (1) input selection switch, (1) treble knob, (1) bass knob, (1) mic/line gain knob, (1) master level knob
Controls, Rear Panel Amplifier Mode DIP switch, Loudspeaker EQ preset selector, Input Gain (A/B/Page mic), Output trim
LED Status Indicators (1) power LED, (1) input clip LED

Integrated Dsp

A/D and D/A Converters 48 kHz / 24-bit
Audio Latency 10.4 ms (analog input to analog output)
Presets High-pass filter, Bose Professional loudspeaker presets (FreeSpace FS2C/FS2P/FS2SE/FS4CE/FS4SE)
Processing Functions Loudspeaker EQ, Opti-Voice EQ (paging), Dynamic EQ (low-end compensation)

Physical

Colors Black (similar to RAL 9005)
Enclosure Material Engineered plastics, highly UV fade-resistant
Grille Perforated steel, powder-coated finish, tamper-resistant design
Ingress Protection IP55 (loudspeakers only)
Cooling System Natural convection
Logo Removable
Operating Temperature Range -25 °C to 70 °C (-13 °F to 158 °F)
Net Weight 3.2 lb (1.4 kg), loudspeaker with grille & bracket (single) / 7.0 lb (3.2 kg), amplifier
Rack Spaces 1 RU high, half rack wide

Performance

Frequency Range (-10 dB) 83 – 19,000 Hz
Coverage, Horizontal 145°
Calculated Maximum SPL @ 1 m 99 dB
Nominal Impedance 16 Ω (transformer bypass)
Power Handling, long-term continuous 16 W
Power Handling, Peak 64 W
Sensitivity (SPL/1 W at 1 m) 87 dB
Transformer Taps, 100V 2, 4, 8, 16 W, bypass
Transformer Taps, 70V 1 W, 2 W, 4 W, 8 W, 16 W, bypass
Coverage, Vertical 140°

Transducers

Driver Protection Recommended high-pass protection 85 Hz with minimum 24-dB/octave filter
Low-Frequency 1 × 2.25 in (57 mm) woofer

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