The PowerSpace P4300+ is a flexible 4-channel commercial installation amplifier delivering 4 × 300 W of clean, efficient Class-D power. Designed for both low-impedance (4/8 Ω) and high-impedance (70V/100V) loudspeaker systems, it is ideal for medium-to-large commercial venues requiring high-quality background/foreground music and paging.
The “+” model features dedicated input expansion for direct integration with Bose PowerSpace+ and ControlSpace DSPs, making system design and deployment simpler and faster. With bridgeable channels, advanced protection, and energy-saving auto-standby, the P4300+ combines reliability with installation flexibility.
- 4 × 300 W @ 4/8 Ω, 70V, or 100V
- Bridgeable channels for higher power configurations (2 × 600 W or 1 × 1200 W)
- Input expansion for seamless connectivity with Bose DSPs
- High-efficiency Class-D design with low heat output
- Auto-standby for energy savings
- Comprehensive protection circuitry (thermal, short circuit, DC, over-current)
- Compact 1RU rackmount form factor
Performance Specifications
- Output Power:
• 4 × 300 W @ 4/8 Ω, 70V, or 100V
• Bridgeable: 2 × 600 W or 1 × 1200 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: Direct connectivity with 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: ≈ 8.1 kg (17.9 lb)
- Cooling: Variable-speed fan-cooled
- Mounting: Standard 19″ rackmount
Applications
- Retail and shopping centers
- Restaurants, cafés, and bars
- Hotels and hospitality venues
- Corporate offices and meeting spaces
- Education facilities
- Houses of worship
- Multi-room distributed sound systems
