Page 1
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 oers 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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Page 2
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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Page 3
TECHNICAL DATA
PowerShare PS404A
adaptable power amplifier
q
w e
POWER SWITCH – ON/OFF AC power.
q
POWER LED
w
• Solid green LED indicates the unit is ON.
• Blinking green LED indicates the unit is in low-power mode.
• Solid amber LED indicates an over-temperature fault.
• Solid red LED indicates a power supply fault.
INPUT 1, 2, 3, 4 SIGNAL LED – Each LED operates
e
independently.
• Green LED indicates signal is present.
• Amber LED indicates signal is near clipping.
• Red LED inciates clipping.
• LEDs will display solid red if a power supply fault
is detected.
q
we
t
r
OUTPUT 1, 2, 3, 4 LIMIT LED – Each LED operates
r
independently.
• LED is amber when the amplifier is limiting the
corresponding output due to exceeding the specified
loudspeaker Vpeak or Vrms limits.
• If the sum of the amplifier outputs exceeds 400 watts, then
• LEDs will display solid red if an amplifier, power supply, or
EHF fault is detected.
• LEDs will blink red when all outputs are muted.
PROFESSIONAL
the amplifier will limit all outputs equally, and all LEDs will
show limiting simultaneously.
s
r
AmpLink – INPUT RJ-45 connector that receives up to 24
q
digital channels from a Bose AmpLink product. The amp also
supports a THRU path for daisy-chaining all 24 digital audio
channels to other Bose AmpLink products, at a maximum
distance of 10 m between products.
CAUTION: Shielded EIA/TIA 568B straight CAT 5 cable, or equivalent, is required
for proper AmpLink operation. Unshielded cable is not supported and may cause
AmpLink to operate improperly. Do NOT connect either RJ-45 port to an
Ethernet-based network.
y
u i
w AmpLink ERR LED – Solid yellow indicates muted audio from
the mute connector. Blinking yellow indicates an error, which
will also mute the audio.
e AmpLink LNK LED – Solid green indicates normal operation
r ANALOG INPUTS – Balanced 12-pin Euroblock line-level input
connector.
t INPUT SELECT – Dial selects if analog or AmpLink audio
inputs are used. The default state is analog 1:1.
MICRO-USB – Connect the amplifier to a PC using a USB
y
connection. This allows you to use the PC-based PowerShare
Editor software to configure the advanced features of the
amplifier.
o
a
CHANNEL 1, 2, 3, 4 EQ – Each dial provides loudspeaker
u
equalization presets per channel: DS 16, DS 40, DS 100,
FS3B, 402, 802, MA12EX, RMU105, and RMU108. Use the Flat
setting for FS3 Omni Systems.
CONTROLCENTER – RJ-45 input connector for Bose CC-1
i
ControlCenter zone controllers or CV41 4-to-1 converter only.
MUTE – Contact closure connection where a short across the
o
mute connector will mute all outputs. Mute polarity can be
inverted with the PowerShare Editor software.
DIP SWITCHES – A bank of switches used to set amplifier
a
configuration.
OUTPUT ATTENUATION 1, 2, 3, 4 – Output attenuators
s
for each output. Turn the controls clockwise to decrease
attenuation and counter-clockwise to increase attenuation.
OUTPUT – Inverted 8-pin Euroblock connector for
d
loudspeaker connections. Each channel can deliver up to 400
watts regardless of load into 4 Ω, 8 Ω, 70V, or 100V. Outputs
are not bridgeable.
AC INLET – Removing the AC cord when the amplifier is on
f
is equivalent to powering down using the front panel power
switch, and is an acceptable power-down method.
d
f
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Page 4
TECHNICAL DATA
PowerShare PS404A
adaptable power amplifier
AC Current Draw and Thermal Dissipation Information
Amplifier rated channel power is 400 W, distributed across four outputs for the PS404A.
PS404A AC Current Draw and Thermal Dissipation (120 VAC, 60 Hz)
Test Signal & Power Level
Power On, Idling 0 0.63 76 258 65
1/8th Rated Power
IEC268 Bandlimited Pink Noise
1/8th Rated Power
IEC268 Bandlimited Pink Noise
1/3rd Rated Power
IEC268 Bandlimited Pink Noise
1/3rd Rated Power
IEC268 Bandlimited Pink Noise
PS404A AC Current Draw and Thermal Dissipation (230 VAC, 50 Hz)
Test Signal & Power Level
Power On, Idling 0 0.33 76 259 65
1/8th Rated Power
IEC268 Bandlimited Pink Noise
1/8th Rated Power
IEC268 Bandlimited Pink Noise
1/3rd Rated Power
IEC268 Bandlimited Pink Noise
1/3rd Rated Power
IEC268 Bandlimited Pink Noise
Load Configuration
(All channels driven)
4-8 Ω 50 1.25 100 341 86
70/100V 50 1.20 94 321 81
4-8 Ω 133 2.10 119 406 102
70/100V 133 2.00 107 365 92
Load Configuration
(All channels driven)
4-8 Ω 50 0.66 102 347 88
70/100V 50 0.60 88 300 76
4-8 Ω 133 1.10 120 409 103
70/100V 133 1.00 97 331 83
Total Audio
Output, W
Total Audio
Output, W
Line Current,
A
Line Current,
A
Thermal Dissipation, Max
Watts BTU/hr kCal/hr
Thermal Dissipation, Max
Watts BTU/hr. kCal/hr.
PROFESSIONAL
Mechanical Diagrams
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Page 5
TECHNICAL DATA
PowerShare PS404A
adaptable power amplifier
Safety and Regulatory Compliance
The PowerShare PS404A adaptable power amplifier complies with
CE requirements and is UL listed according to UL60065 (8th edition)
and CAN/CSA C22.2 No. 60065-16; CB approved, according to
IEC60065 (8th edition), including group and national dierences.
This model also complies with FCC Part 15B Class A, ICES-003 Class
A, EN55032, EN55103-2:2009, CISPR 13: Ed. 5.0 (2009-06), and
CISPR-32 requirements. The product must be used indoors. It is
neither designed nor tested for use outdoors, in recreational vehicles,
or on boats.
Product Codes
PowerShare PS404A adaptable power amplifier
US-120V 791323-1410
EU-230V 791323-2410
JP-100V 791323-3410
UK-230V 791323-4410
AU-240V 791323-5410
Accessories
ControlCenter CC-1 zone controller
US-Black 768932-0110
US-White 768932-0210
EU-Black 768932-2110
EU-White 768932-2210
JP-Black 768928-3110
JP-White 768928-3210
PROFESSIONAL
ControlCenter CV41
4-to-1 converter 768928-0010
PowerShare Editor software
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