TECHNICAL DATA
FreeSpace® ZA 2120-HZA
Zone Amplifier
Product Description
The Bose® FreeSpace® ZA 2120-HZA zone amplifier is designed to provide
basic amplification and sound system expansion when using front-end Bose
products such as FreeSpace® integrated zone amplifiers and ControlSpace®
engineered sound processors. With the inclusion of AmpLink, up to 8 digital
audio channels can be sent to the amp from a Bose DSP via a shielded CAT 5
cable.
Key Features
• Reliable 2 x 120 W Class-D amplification optimized for 70/100V high-impedance
applications.
• AmpLink transports up to 8 uncompressed, near zero latency, digital audio
channels between Bose DSPs and the ZA 2120-HZA via shielded CAT 5 cable.
The amp also supports a THRU path for daisy-chaining digital audio to other
Bose AmpLink products at a distance of up to 10 m between products.
• Dual Remotes support optional volume adjustment for -independent, or
combined, zone control which eliminates the need for bulky, -inecient, and
sound-altering 70/100V in-line volume controls.
• Expansion-ready connectivity with FreeSpace® IZA amplifiers and ControlSpace®
engineered sound processors when additional sources and loudspeaker
processing is required.
• Intuitive feature setup enables the amplifier to be configured without a PC for
remote, input, output and automatic standby options.
• Auto-Standby feature allows the amplifier to consume less power when not in
use.
• Remote muting allows the amplifier to be muted via a centralized control system.
PROFESSIONAL
Applications
Designed for a wide range of applications,
including:
• Retail stores
• Restaurants and bars
• Hospitality venues
• Conference centers
• Schools
• Auxiliary zones
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TECHNICAL DATA
FreeSpace® ZA 2120-HZA
Zone Amplifier
PROFESSIONAL
Technical Specifications
POWER RATING
Amplifier Power 2 x 120 W @ 70/100V
AUDIO PERFORMANCE
Frequency Response 55 Hz - 20 kHz (+0/–3 dB, @ 1 W reference 1 kHz)
THD+N ≤ 0.3 % (at rated power)
Channel Separation (Crosstalk) ≤ –58 dBu (below rated power, 1 kHz)
Dynamic Range 88 dB
Audio Latency 1 ms (any analog input to loudspeaker output); 1.5 ms (AmpLink input to loudspeaker output)
AUDIO INPUTS ANALOG AMPLINK
Input Channels 1 unbalanced, 1 balanced
Connectors Stereo RCA, 5-pin Euroblock
Input Range –8 dBu to 22 dBu
Input Impedance 20 kΩ
Maximum Input Level 22 dBu
Nominal Input Level 4 dBu
AUDIO OUTPUTS ANALOG AMPLINK
Outputs 2
Connectors 2-pin inverted Euroblock
Nominal Output Level 2 x 120 W @ 70/100V
INDICATORS AND CONTROLS
Power LED Solid blue indicates power is on, blinking blue indicates standby mode.
Input Signal Clip LED Green indicates input signal is within –37 dBu to 11 dBu, red indicates signal is over 11 dBu.
Output Signal Clip LED Green indicates output signal is within –46 dBFS to –2 dBFS, red indicates signal is over –2 dBFS, approximately 80 W/
AmpLink ERR LED Solid yellow indicates muted audio from the mute connector. Blinking yellow indicates an error, which will also mute the
AmpLink LNK LED Solid green indicates normal operation.
Controls, Front Panel Power On/O
Controls, Rear Panel Auto Standby On/O switch, Input: Dual/Summed switch, Remote 1 Control: Zone 1/Zone 1+2 switch, Output Voltage:
ELECTRICAL
Mains Voltage 100 VAC - 240 VAC (±10%, 50/60 Hz)
AC Power Consumption 13 W (Standby) 300 W (Max)
Mains Connector Standard IEC (C14)
Maximum Inrush Current 12.6 Amps (230 VAC / 50 Hz), 7.8 Amps (120 VAC / 60 Hz)
Overload Protection High temperature, output short, excessively low or high AC line voltage
PHYSICAL
Dimensions (H x W x D) 1.7" H x 19.0" W x 12.8" D (44 mm x 483 mm x 324 mm)
Shipping Weight 11.7 lb (5.3 kg)
Net Weight 9.5 lb (4.3 kg)
Cooling System Single fan creates continuous left-to-right air flow
GENERAL
Inputs (Control) 1 RJ-45 input connector for the CC-1 ControlCenter zone controller, or the CV41 4-to-1 converter. Mute input control via
For additional specifications and application information, please visit pro.Bose.com. Specifications subject to change without notice
channel, for each output 120 watts is 0 dBFS.
audio.
70/100V switch, Mute, Output trims, Remote RJ-45
a normally open contact closure.
8 digital
RJ-45 (Input)
8 digital
RJ-45 (Thru)
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TECHNICAL DATA
FreeSpace® ZA 2120-HZA
Zone Amplifier
PROFESSIONAL
q w e r
POWER SWITCH – ON/OFF AC power.
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POWER LED – Solid blue LED indicates the unit is ON. Blinking blue LED indicates the unit is in standby mode.
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INPUT SIGNAL LED – LED is green from –37 dBu to 11 dBu, LED goes red over 11 dBu.
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OUTPUT LIMIT LED – LED is green from –46 dBFS to –2 dBFS, LED goes red over –2 dBFS, approximately 80 W/channel. For
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each output 120 watts is 0 dBFS.
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AMPLINK – INPUT RJ-45 connector that receives up to 8 digital audio channels from a Bose AmpLink product. The amp also
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supports a THRU path for daisy-chaining the 8 digital audio channels to other Bose AmpLink 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.
AMPLINK ERR LED – Solid yellow indicates muted audio from the mute connector. Blinking yellow indicates an error, which will
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also mute the audio.
AMPLINK LNK LED – Solid green indicates normal operation.
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INPUT SELECT – Switch selects if analog or two consecutive AmpLink audio inputs are used. Choose from AmpLink channels 1-2,
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3-4, 5-6, or 7-8. The default state is analog.
ANALOG INPUT – Balanced and unbalanced line-level input connectors.
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AUTO STANDBY – If enabled (ON) the amplifier will go into standby mode after twenty minutes without an input signal. If in
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standby mode and an audio signal is detected, the amplifier will automatically wake and amplify audio within 0.7 seconds. The
OFF position disables the feature.
INPUT – The input can be set to either DUAL or SUMMED mode.
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REMOTE 1 CONTROL – Sets the REMOTE 1 input to control both outputs (or zones) simultaneously (ZONE 1+2), or allows each
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REMOTE input to control its own output (ZONE 1). Each remote has independent A/B selection capability. If only one remote is
being used, then this switch must be set to ZONE 1+2.
70V/100V – The output can be set to 70V or 100V.
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REMOTE – RJ-45 input connector for the CC-1 ControlCenter zone controller, or the CV41 if connecting to two non-ganged CC-1s.
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If the two CC-1s are ganged together, then the CV41 is not needed.
MUTE – Contact closure connection that upon trigger (short) will mute all outputs.
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OUTPUT TRIM – Allows for up to 40 dB attenuation of each loudspeaker output.
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OUTPUT – Two inverted 2-pin Euroblock connectors for loudspeaker connections. Outputs are not bridgeable.
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AC MAINS RECEPTACLE – AC line voltage input.
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TECHNICAL DATA
FreeSpace® ZA 2120-HZA
Zone Amplifier
AC Current Draw and Thermal Dissipation Information
ZA 2120-HZA, AC Current Draw and Thermal Dissipation
Test Signal & Power Level
Power On, Idling 0 0.20 0.14 32 110 28
1/8th Rated Power
IEC65 Bandlimited Pink Noise
6 dB Crest Factor
DS 16 EQ Enabled
1/3rd Rated Power
IEC65 Bandlimited Pink Noise
6 dB Crest Factor
DS 16 EQ Enabled
Load Configuration
(Both ZA channels driven)
Mechanical Diagrams
70V/Ch 30 0.50 0.30 37 125 32
100V/Ch 30 0.60 0.30 41 141 36
70V/Ch 80 1.10 0.60 58 198 50
100V/Ch 80 1.10 0.60 58 198 50
Total Audio
Output, W
120 VAC 60 Hz
Line Current, A
230 VAC 50 Hz
Line Current, A
PROFESSIONAL
Thermal Dissipation, Max
Watts BTU/hr kCal/hr
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TECHNICAL DATA
FreeSpace® ZA 2120-HZA
Zone Amplifier
Architects’ and Engineers’ Specifications
The amplifier shall employ Class-D amplification topology. The
amplifier shall incorporate a switch-mode power supply allowing
normal operation from AC outlets ranging from 100 – 240 V (±10%) at
50/60 Hz. The amplifier shall have an IEC 320-C14 electrical power inlet
and shall be equipped with a removable power supply cord. A power
switch shall be located on the front panel. The product shall include
protection from shorted loads and general overheating. The amplifier’s
physical size shall be 1 RU in height by 1 RU in width and be capable
of rack mounting. The product shall have venting with a single fan,
continuous left-to-right airflow. Each output channel shall have output
trim controls.
The amplifier shall have two output channels with a frequency response
of 55 Hz to 20 kHz (+0/–3 dB) and drive 70/100V distributed audio
systems. The amplifier shall have THD+N at rated power less than or
equal to 0.3%. Output connections shall be made via 2-pin touch-proof
Euroblock connectors.
The amplifier shall meet or exceed the following performance
specifications: channel separation (crosstalk) less than or equal to
–58 dB below rated power at 1 kHz and dynamic range of 88 dB. The
amplifier shall have 1 line-level input (RCA stereo or 5-pin Euroblock),
one AmpLink digital audio input (RJ-45), one AmpLink digital audio
thru connection (RJ-45), and 1 remote control input (RJ-45). Three
LEDs shall be visible on the front panel – one (blue) for power/standby
indication, the second (red) for input level over 11 dBV, and the third
(red) for output level over –2 dBFS.
The amplifier shall have a 2 remote control inputs intended for use
with the Bose Volume control user interface or third party 10k ohm
linear taper potentiometers. The amplifier shall oer a master mute
connection for use with external dry contacts to mute output of the
amplifier. The rear panel shall contain a dual/summed input switch that
allows optimization of the amplifier output.
The amplifier chassis shall be constructed of painted steel. The
dimensions of the amplifier shall allow for 19-inch (483 mm) EIA
standard rack mounting. The chassis shall be 1.7 inches (44 mm) in
height, 19.0 inches (483 mm) in width and 12.8 inches (324 mm) in
depth. The amplifier chassis shall weigh 8.5 pounds (3.9 kg). The
amplifier shall be the Bose FreeSpace ZA 2120-HZA zone amplifier.
PROFESSIONAL
Safety and Regulatory
Compliance
The FreeSpace ZA 2120-HZA zone 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
FreeSpace ZA 2120-HZA integrated zone amplifier
120V – US 791355-1410
230V – EU 791355-2410
100V – Japan 791355-3410
230V – UK 791355-4410
240V – AU 791355-5410
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
ControlCenter CV41 768928-0010
4-to-1 converter
6’ (1.8M) Shielded F/UTP 804380-0010
CAT-5E Cable
33’ (10M) Shielded F/UTP 804380-0010
CAT-5E Cable
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