Bose PowerShare PS404D - Adaptable Power Amplifier

Rs. 191,729.00


About the PowerShare PS404D Adaptable Power Amplifier

Put the power where you need it. PowerShare amplifiers deliver outstanding audio performance and reliability with patented technologies inherited from the field-proven PowerMatch line — now with added flexibility. Using innovative PowerShare technology, the amp shares power across all output channels and delivers 400 watts for installed applications. This means you can distribute the total 400 watts asymmetrically across all outputs or use any individual output to deliver full power. And with support for both low- and high-impedance loads up to 100V, it’s easy to adapt PowerShare amplifiers to a wide range of applications. ControlSpace Designer software allows for Ethernet-based configuration and quick setup of external control options. With onboard Dante® audio networking, you have the flexibility to place PowerShare amplifiers away from source locations and closer to loudspeakers. This unique set of features and technologies makes PowerShare one of the most versatile, high-performance amplifiers available today.

Product Highlights:



PowerShare Technology

Distribute the total 400 watts asymmetrically across all outputs using patented PowerShare technology, which allows each output to deliver full power. Instead of selecting amplifier power based on the needs of the largest zone, you now have the freedom to use total amplifier power in any application. This enables more flexibility during the initial design, or later on-site when making unplanned changes that take advantage of surplus power.

Load-independent Outputs

Configure any channel for low-impedance (4-8 Ω) or high-impedance (70/100V) applications without bridging or using jumpers.

Integrated Dante Audio Networking

Support four audio input channels from a Dante network and mix onboard analog inputs with digital Dante inputs as selected in ControlSpace Designer software.

Dual Feedback Loop System

Improve performance and reliability. The Dual Feedback Loop system, inherited from the field-proven Bose PowerMatch amplifier line, allows for continuous monitoring and control of both the current and voltage delivered to each output load. This combination provides improved linearity and lower distortion while protecting loudspeakers.

ControlSpace Networking

Configure using ControlSpace Designer software for inclusion into larger networked audio systems where end-user controllers and scheduling events can control amplifier parameters.

Integrated Loudspeaker Processing

Adjust various parameters using ControlSpace Designer software: nine-band PMQs, matrix mixing, crossover, limiters, delay, mute/output polarity, and more.


Save power — PowerShare amplifiers can be configured to automatically enter standby mode when the audio signal falls below a set threshold, then wake when audio returns.


  • Performing arts venues
  • Places of worship
  • Conference centers
  • Retail stores
  • Restaurants and bars
  • Hospitality venues

Warranty: 5-years


  • Amplifier Power: 4 x 100 W (THD+N < 0.04%, 1 kHz, 4-8 Ω, 70/100V)

  • Maximum Power per Channel: 400 W @ 4-8 Ω, 70/100V

  • Gain (Low-Z mode): 30.2 dB

  • Gain (70V mode): 35.0 dB

  • Gain (100V mode): 38.0 dB

Frequency Response: 4-8 Ω: 20 Hz – 20 kHz (+/- 0.5 dB @ 1 W); 70/100V: Same as 4-8 Ω with 50 Hz high-pass filter
Channel Separation (Crosstalk): > 85 dB @ 1 kHz, > 65 dB @ 20 kHz
Signal to Noise Ratio: 100 dB (at rated power, A-weighted)

Audio Inputs:

  • Input Channels:

    • Analog: 4 balanced

    • AmpLink: 4 digital

  • Connectors:

    • Analog: 12-pin Euroblock

    • AmpLink: RJ-45 (primary)

Input Impedance: 20 kΩ
Maximum Input Level: 20 dBu (at 12 dBu sensitivity setting)
Sensitivity: 4 / 12 dBu (low / high sensitivity)

Audio Outputs:

  • Outputs: 4

  • Connectors: 8-pin inverted Euroblock

Integrated DSP:

  • A/D and D/A Converters: 24-bit/48 kHz

  • Processing Functions: Matrix mixer, loudspeaker EQ, 9-band PEQ, Vpeak/Vrms limiters, delay, band-pass, mute, output polarity inversion

  • Audio Latency: < 1 ms (Analog input to analog loudspeaker output)

Indicators and Controls:

  • Power LED: Solid green - Solid green: Power is on. Blinking green: The unit is in standby mode. Solid amber: Thermal fault. Solid red: Supply fault.

  • Input Signal LED: Green - Signal present. Amber: Input is near clipping. Red: Input is clipping. Solid red: Indicates a fault.

  • Output Limit LED: Amber -Amplifier limiting an output. Blinking red: Amplifier muted. Solid red: Indicates a fault.

  • Front Panel Control: Power On/Off

  • Rear Panel Controls: Output attenuators


  • Dimensions: Width - 44 mm x 483 mm x 414 mm (1.7 in x 19.0 in x 16.3 in)

  • Net Weight: 6.4 kg (14.1 lb)

  • Cooling System: Microprocessor controlled, variable speed fans, left to right airflow

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