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The Bose Professional PowerSpace P4300+ amplifier combines power and DSP into a 1RU, four-channel design for quick-turn installations. Part of a comprehensive platform of loudspeakers, controls, and software that help installers deliver premium commercial sound systems efficiently, Bose Professional PowerSpace+ amplifiers feature a quick-setup workflow. An onboard configuration utility and intuitive browser-based UI present common tasks in a logical manner, so you can configure the system faster, reducing installation time while increasing setup accuracy. Once installed, proprietary algorithms offer predictable performance while optional interfaces — such as ControlCenter analog zone controllers — make operation easy for end users. For premium commercial applications, Bose Professional PowerSpace+ models provide amplification and DSP in one integrated, easy-to-configure package.
Take advantage of full mixing functionality, allowing input sources to be mixed and assigned to each listening area.
300 watts per channel and works seamlessly with Bose Professional loudspeakers and controls to create complete commercial sound systems
Built-in DSP, including SmartBass processing, routing, level control, delays, limiters, Bose Professional loudspeaker EQs, plus input and area EQs
PowerSpace configuration utility facilitates setup with an integrated webserver and intuitive browser-based UI, including real-time control with signal and thermal monitoring
Opti-Voice paging provides a smooth transition between music and announcements
Integrated features to simplify commercial installations: Dedicated input for 600 Ω telephone or mic paging, independent 600 Ω music-on-hold and line-level aux outputs, and a NO/NC mute connection
Load-independent outputs deliver full channel power to either low-impedance loads (4-8 Ω) or high-impedance (70/100V) loads without bridging
I-Share outputs deliver 2x power level by combining the current of two channels
Auto-standby mode saves power when audio signal falls below a set threshold, then wakes when audio returns
Intuitive end-user operation — optional ControlCenter CC-1, CC-2, and CC-3 analog zone controllers provide easy volume control and source selection
Designed for a wide range of applications, including:
Retail stores
Restaurants and bars
Hospitality venues
Conference centers
Schools
Auxiliary zones
Channel Separation (Crosstalk)
> 80 dB at 1 kHz, > 65 dB at 20 kHz
Dynamic Range
≥ 100 dB at rated power, A-weighted
Frequency Response
20 Hz – 20 kHz (±1 dB) at 1 W, 4–8 Ω / 20 Hz – 20 kHz (±1 dB) at 1 W with 50 Hz high-pass filter, 70/100V
Gain, High-Impedance
35 dB, 70V mode / 38 dB, 100V mode
Gain, Low-Impedance
32 dB
Maximum Peak Power, Symmetrical
600 W
Number of Channels
4
Power Class
Class D
Rated Power, Symmetrical
300 W
THD+N
< 0.04% at 1 kHz, 4–8 Ω, 70V/100V
Input Channels
4 balanced, 2 unbalanced
Connectors
(3) 3-pin Euroblock, (1) 4-pin Euroblock, (2) RCA stereo pairs
Input Impedance
10 kΩ
Maximum Input Level
22 dBu at 14 dBu sensitivity
Sensitivity
-10 dBV, 4 dBu, 14 dBu
Channels
6 (4 loudspeaker + 2 auxiliary)
(1) 8-terminal block, (1) 3-pin Euroblock, line
Colors
Gray
Cooling System
Microprocessor-controlled variable-speed fans, front-to-back air flow
Suspension/Mounting
Rack-mounting
Net Weight
14.6 lb (6.6 kg)
Operating Temperature Range
0 °C to 40 °C (32 °F to 104 °F)
Product Dimensions (H×W×D)
1.7 in × 19.0 in × 16.5 in (44 mm × 483 mm × 420 mm)
Rack Spaces
1
Shipping Weight
19.0 lb (8.6 kg)
EMC
This product meets all EN55103-2 immunity requirements for E2 electromagnetic environment.
Mains Connector
IEC C14 inlet
Mains Voltage
100–240 VAC (±10%), 50/60 Hz
AC Power Consumption
25 W auto-standby, 570 W maximum
Computer Interface Connection
RJ-45 (Ethernet)
Software Applications
PowerSpace+ Configuration Utility (web browser)
System Requirements
Google Chrome 64.0.3282.140 or later / Mozilla Firefox Quantum 58.0.2 or later / Microsoft Internet Explorer 11.2007.14393.0 or later / Microsoft Edge 38.14393.1066.0 or later
Controls, Front Panel
(1) power LED, (1) input signal LED, (1) output limit LED
Controls, Rear Panel
RJ-45 remote input for ControlCenter CC-1, CC-2 and CC-3 zone controllers, mute, output attenuators
LED Status Indicators
(1) power/status LED, (4) input signal LEDs, (4) output limit LEDs
A/D and D/A Converters
48 kHz / 24-bit
Audio Latency
< 1 ms, analog input to analog loudspeaker output
Crossover Types
Butterworth 6 (±6 dB/octave), Butterworth 12 (±12 dB/octave), Butterworth 18 (±18 dB/octave), Butterworth 24 (±24 dB/octave)
Delay
2 s
DSP-Enabled
Yes
Equalization
Input: 3-band EQ, paging / Loudspeaker: 9-band PEQ (±20 dB), notch, shelving, high-pass, low-pass, low-frequency compensation / Area : 7-band PEQ (±20 dB), notch, shelving, high-pass, low-pass
Limiters
Peak voltage, RMS voltage
Presets
Bose Professional loudspeaker presets
Processing Functions
Input EQ, loudspeaker EQ, peak voltage limiter, RMS voltage limiter, ControlCenter configuration, matrix mixer, mute/output polarity inversion
5 years
(1) 2-pin Euroblock connector
(1) 4-pin Euroblock connector
(1) IEC power cord
(1) installation guide
(1) PowerSpace P4300+
(10) terminal forks, 14–16 AWG
(2) I-Share jumpers
(5) 3-pin Euroblock connectors
