Bose PS404A Data Sheet

TECHNICAL DATA

PowerShare PS404A
adaptable power amplifier

Product Description

Bose PowerShare PS404A adaptable power amplifier delivers 400 watts for
fixed-install applications. Through patented technology, total amplifier power
is shared across all output channels, allowing installers the freedom to utilize
power where needed. With support for both low- and high-impedance loads
up to 100V, PowerShare amplifiers adapt to a wide range of applications.
Onboard configurable loudspeaker processing and direct access to zone
controllers eliminate the need for an additional signal processor in many
installations, while outstanding audio performance and reliability are assured
with patented technologies inherited from the field-proven PowerMatch® line.
With the inclusion of AmpLink, up to 24 digital audio channels can be sent
to the amp from a Bose DSP via a shielded CAT 5 cable. This unique set of
features and technologies makes PowerShare one of the most versatile high­performance amplifiers available.

PROFESSIONAL

• ControlCenter Zone Controller
Accessories – Bose ControlCenter CC-1

zone controllers can be directly attached
for remote adjustment of amplifier
outputs, further extending stand-alone
amplifier applications.

• Auto-Standby – Designed to save
power consumption when not in use.
PowerShare amplifiers can be configured
to automatically enter standby mode
when the audio signal falls below a set
threshold, then wake when audio returns.

Key Features

• PowerShare Technology – Patented PowerShare technology allows the total

400 watts of power to be shared asymmetrically across all outputs, as each
output is capable of delivering full power. Instead of selecting amplifier power
based on the needs of the largest zone, installers now have the freedom to use
total amplifier power in the 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 – Each channel can be configured for low­impedance (4-8 Ω) or high-impedance (70/100V) applications without
bridging, use of jumpers, or software settings.

• DFL™ System – The Dual Feedback Loop system, inherited from the field­proven Bose PowerMatch® amplifier line, improves performance and reliability
through 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.

• Integrated Loudspeaker Processing with Optional PowerShare Editor
Configuration – For applications requiring additional signal processing the

PowerShare Editor Software oers real-time selection and control of Bose
loudspeaker EQs, 9-band PEQs, matrix mixing, crossover, delay, and mute/
output polarity through a USB connection. For basic setups without a PC,
rear-panel settings allow installers to recall Bose loudspeaker equalization
and protection per output channel. These features eliminate the need for an
external signal processor in many applications.

• AmpLink – Transports up to 24 uncompressed, near zero latency, digital audio
channels between Bose DSPs and the PowerShare PS404A via shielded CAT
5 cable. The amp also supports a THRU path for daisychaining up to 8 other
Bose AmpLink amplifiers, at a distance of up to 10 m between products. Any
combination of AmpLink amplifiers can be daisychained.

Applications

Designed for a wide range of applications,
including:

• Performing arts venues

• Houses of worship

• Conference centers

• Retail stores

• Restaurants and bars

• Hospitality venues

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TECHNICAL DATA

PowerShare PS404A
adaptable power amplifier

Technical Specifications

POWER RATING

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

AUDIO PERFORMANCE

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 ANALOG AMPLINK

Input Channels 4 balanced 24 digital

Connectors 12-pin Euroblock RJ-45 (Input)

Input Impedance 20 kΩ

Maximum Input Level 20 dBu (at 12 dBu sensitivity setting)

Sensitivity 4 / 12 dBu (low / high sensitivity)

AUDIO OUTPUTS ANALOG AMPLINK

Outputs 4 24 digital

Connectors 8-pin inverted Euroblock RJ-45 (Input)

PROFESSIONAL

INTEGRATED DSP

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

Processing Functions

Loudspeaker Presets Flat, DS16, DS40, DS100, FS3B, 402, 802, MA12EX, RMU105 and RMU108
Audio Latency < 1 ms (any analog or Amplink input to loudspeaker output)

INDICATORS AND CONTROLS

Power LED Solid green: Power is on. Blinking green: 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.

Controls, Front Panel Power On/O

Controls, Rear Panel Amplifier mode DIP switches, loudspeaker EQ dials, input select dial, output attenuators

ELECTRICAL

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

AC Power Consumption 120 VAC: 14 W (Standby), 500 W (Max) 230 VAC: 14 W (Standby), 500 W (Max)

Mains Connector Standard IEC (C14)

Maximum Inrush Current 14.14 A (230 VAC / 50 Hz), 8.04 A (120 VAC / 60 Hz)

Protections High temperature, output short, extra high frequency (EHF), excessively low or high AC line voltage

PHYSICAL

Dimensions (H x W x D) 44 mm x 483 mm x 414 mm (1.7” x 19.0” x 16.3”)

Shipping Weight 7.8 kg (17.2 lb)

Net Weight 6.4 kg (14.1 lb)

Cooling System Microprocessor controlled, variable speed fans, left to right air flow

Matrix mixer, loudspeaker EQ, real-time 9-band PEQ, Vpeak/Vrms limiters, delay, band pass, mute/output polarity
inversion

GENERAL

Inputs (Control) RJ-45 remote input for volume control using the CC-1 ControlCenter zone controllers, or for connection to the CV41.

For additional specifications and application information, please visit pro.Bose.com. Specifications subject to change without notice.

Micro-USB input for configuring the amplifier with PowerShare Editor software. Mute input control.

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