The PowerSpace P4150+ is a flexible 4-channel commercial installation amplifier delivering 4 × 150 W of reliable, high-quality sound. Designed for both low-impedance (4/8 Ω) and high-impedance (70V/100V) loudspeaker systems, it is ideal for background/foreground music and paging applications in retail, hospitality, corporate, and education environments.
The “+” version adds dedicated input expansion capabilities, allowing simple audio routing from Bose PowerSpace+ and ControlSpace processors without the need for additional external hardware. Built with efficient Class-D amplification, the P4150+ is lightweight, compact, and energy-efficient.
- 4 × 150 W @ 4/8 Ω, 70V, or 100V
- Bridgeable channels for higher power applications
- Integrated input expansion for direct connectivity to Bose DSPs
- High-efficiency Class-D design with low heat generation
- Auto-standby mode for reduced energy consumption
- Advanced protection (thermal, short circuit, DC, over-current)
- Compact 1RU design for easy installation
Performance Specifications
- Output Power:
• 4 × 150 W @ 4/8 Ω, 70V, or 100V
• Bridgeable: 2 × 300 W - Frequency Response: 20 Hz – 20 kHz (+0/–3 dB)
- THD+N: < 0.04% at rated power
- Signal-to-Noise Ratio: > 100 dB (A-weighted)
- Damping Factor: > 200 @ 8 Ω
- Crosstalk: < –70 dB @ 1 kHz
Inputs & Outputs
- Inputs: 4 × Balanced Euroblock line inputs
- Outputs: 4 × Balanced Euroblock speaker outputs (low-Z or high-Z selectable)
- Input Expansion: Supports connection from Bose PowerSpace+ and ControlSpace processors
- Front Panel: Power switch, LED indicators (signal, clip, protect, standby)
- Rear Panel: DIP switches for gain and configuration
Physical / Mechanical
- Dimensions (H × W × D): 44 × 483 × 406 mm (1.75″ × 19″ × 16″) – 1RU
- Net Weight: ≈ 7.7 kg (17 lb)
- Cooling: Variable-speed fan-cooled
- Mounting: Standard 19″ rackmount
Applications
- Retail stores and shopping centers
- Restaurants, cafés, and bars
- Hotels and hospitality spaces
- Corporate offices and meeting rooms
- Education facilities
- Houses of worship
- Multi-room commercial spaces


















