Bose Professional PowerSpace P21000A Power Amplifier

Bose Professional PowerSpace P21000A is a commercial power amplifier designed for zone-expansion and distributed audio applications. It enables high-output amplification for low-impedance and high-impedance loudspeaker systems in retail, hospitality, education, and corporate environments. This makes it ideal for premium commercial installations where flexible power delivery and system scalability are critical.

The amplifier provides two channels of Class D amplification with load-independent outputs that support 4–8 Ω and 70/100V systems without bridging. It features AmpLink digital audio connectivity for simplified multichannel signal distribution from compatible Bose Professional DSPs. I-Share output capability allows combined channel current to deliver increased power to a single zone.

The P21000A supports efficient system operation with automatic standby functionality to reduce power consumption during idle periods. Rack-mount form factor and front-to-back cooling support integration into standard equipment racks. The design supports scalable commercial sound systems with consistent performance across multiple zones.

Key Features

• 1000 W Per Channel Output: Provides high-power amplification for demanding commercial loudspeaker systems
• AmpLink Digital Audio: Supports multichannel uncompressed digital audio over a single Cat 5 cable
• Load-Independent Outputs: Delivers full power to low-impedance or 70/100V loads without bridging
• I-Share Output Mode: Combines channel current to deliver double power to a single zone
• Auto-Standby Operation: Reduces power consumption when audio signal is inactive

Technical Specifications

Amplifier Class
Class D

Number of Channels
2

Rated Power, Symmetrical
1000 W per channel

Maximum Peak Power, Symmetrical
2000 W

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

Dynamic Range
≥ 100 dB at rated power, A-weighted

THD+N
< 0.04% at 1 kHz, 4–8 Ω, 70V/100V

Channel Separation (Crosstalk)
> 80 dB at 1 kHz
> 65 dB at 20 kHz

Gain, Low-Impedance
38 dB

Gain, High-Impedance
35 dB (70V mode)
38 dB (100V mode)

Analog Audio Inputs
2 balanced channels via 6-pin Euroblock

Digital Audio Inputs
8 AmpLink in / 8 AmpLink thru via RJ-45

Analog Audio Outputs
2 channels via 4-terminal block

Mains Voltage
100–240 VAC (±10%), 50/60 Hz

AC Power Consumption
25 W auto-standby
570 W maximum

Cooling System
Microprocessor-controlled variable-speed fans
Front-to-back airflow

Rack Mounting
1 RU rack space

Operating Temperature Range
0 °C to 40 °C (32 °F to 104 °F)

Product Dimensions (H × W × D)
1.7" × 19.0" × 16.5"
44 mm × 483 mm × 420 mm

Net Weight
14.6 lb (6.6 kg)

Shipping Weight
19.0 lb (8.6 kg)

Warranty Period
5 years

What’s in the Box

(1) PowerSpace P21000A power amplifier
(1) IEC power cord
(1) Installation guide
(1) Cat 5e cable, 3.3 ft (1 m)
(2) 3-pin Euroblock connectors
(1) 2-pin Euroblock connector
(1) I-Share jumper
(5) Terminal forks, 14–16 AWG