Data Sheet

FreeSpace
®
IZA 250-LZ / 190-HZ
integrated zone amplifier
TECHNICAL DATA SHEET
All information subject to change without notice.
® 2012 Bose Corporation
All trademarks are those of their respective owners.
Bose Professional Systems Division
5
OF 6
pro.Bose.com
Architects’ and Engineers’
Specifications
The mixer/amplifier shall employ Class-D amplification together
with a digital signal processing architecture running at 48 kHz /
24 bit. The mixer/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 mixer/amplifier's physical size
shall be 1 RU in height by 1/2 RU in width and be capable of rack
mounting using an accessory kit. Two models shall be designed to
be rack mounted together horizontally to combine for a full-width
1 RU installation. The product shall have venting appropriate for
natural convection without fans. The amplifier section shall have
two amplifier configurations offered in two separate models. Each
output channel shall have output trim controls.
The low impedance model shall have two output channels with
a frequency response of 40 Hz to 20 kHz (+0/-3 dB) and drive 4
ohm loads at 50 watts continuous power or 25 watts per channel
continuous power into 8 ohm loads. The low impedance model
shall have THD+N at full-rated power less than or equal to
0.3%. Output connection shall be made via two terminal strips
that accommodate 22-14 AWG wires using included spade lug
connectors.
The high impedance model shall have a single output channel
with a frequency response of 60 Hz to 20 kHz (+0/-3 dB) and drive
70/100 V distributed audio systems. The high impedance model
shall have THD+N at full-rated power less than or equal to 1%.
Output connection shall be made via a 3-pin Euroblock connector.
Both models shall meet or exceed the following performance
specifications: channel separation (crosstalk) less than or equal
to -60 dB below rated power at 1 kHz and dynamic range of 88
dB. The mixer/amplifier shall incorporate 3 line-level inputs (two
RCA stereo, one 3.5 mm stereo) and two microphone inputs for
paging applications. Two of the line level inputs shall be selectable
via a switch on the front panel while the third input shall override
line-input channels upon connection. The nominal input sensitivity
shall be 0 dBV for line level inputs and -40 dBV for microphone
inputs. One microphone input shall be mounted to the front
panel, have a selectable mix/duck option and use a combination
XLR-TRS connector for dynamic microphones. The second
microphone input shall be mounted on the rear, support dynamic
microphones and select telephone systems with PTT switching.
Both microphone inputs shall bypass master volume control
via a selector on the rear panel. All inputs shall have individual
input gain controls with the exception of the 3.5 mm priority input
connector on the front panel. Two LEDs shall be visible on the
front panel—one (blue) for power indication, the second (red)
for input level clip (over -3 dBFS). The mixer/amplifier shall have
an auxiliary line-output via two RCA connectors. The digital
signal processor shall enable a user-selectable loudspeaker
preset (Bose® FreeSpace® DS 16 and DS 40) or high-pass
filter to be applied to the loudspeaker output and (via selector)
the auxiliary output connectors. The front panel shall also have
user-accessible treble, bass and master volume controls. The
mixer/amplifier shall have a remote control input intended for use
with the Bose Volume control with A/B switch user interface or
third party switches/10k ohm linear taper potentiometers. The
mixer/amplifier shall offer a master mute connection for use with
external dry contacts to mute output of the amplifier and auxiliary
output. The rear panel shall contain a stereo/mono switch that
allows optimization of the amplifier output (low impedance model
only) and the auxiliary line-level output when using stereo or mono
sources.
The mixer/amplifier chassis shall be constructed of painted steel.
The dimensions of the mixer/amplifier shall allow for 19-inch (483
mm) EIA standard rack mounting using the optional rack mounting
kit accessory. The mixer/amplifier shall be 1.8 inches (45 mm) in
height, 8.4 inches (214 mm) in width and 12.2 inches (310 mm) in
depth. The low impedance model shall weigh 4.8 pounds (2.2 kg).
The high impedance model shall weigh 7 pounds (3.2 kg). The
mixer/amplifier shall be the Bose FreeSpace IZA 250-LZ (or IZA
190-HZ) integrated zone amplifier.
Safety and Regulatory Compliance
FreeSpace IZA 250-LZ / IZA 190-HZ integrated zone amplifiers
comply with CE requirements, are cUL listed according to
UL60065 (7th edition) and CAN/CSA C22.2 No. 60065-03; CB
approved, according to IEC60065 (7th edition), including group
and national differences. These models also comply with FCC
Part 15B Class A (2003), EN55103-1 (1997), EN55103-2 (1996),
and CISPR13 (2003) requirements.
Additional Notes
Power rating:
Output power is measured per channel, both channels driven (IZA
250-LZ model), using test signals at 1 kHz.
CAD preview:
Mechanical drawings shown in this Technical Data Sheet
represent the FreeSpace IZA 250-LZ model. Mechanical
drawings for both models are available by download on the Bose
Professional Systems Division website.
Rear panel diagram:
Panel diagrams shown in the Technical Data Sheet represent
the FreeSpace IZA 250-LZ model. The IZA 190-HZ model is not
shown but is similar to the IZA 250-LZ.
Product Codes
FreeSpace IZA 250-LZ integrated zone amplifier
120V – US 344871-1420
240V – AU 344871-2420
100V – Japan 344871-3420
230V – EU 344871-4420
230V – UK 344871-5420
FreeSpace IZA 190-HZ integrated zone amplifier
120V – US 344871-1410
240V – AU 344871-2410
100V – Japan 344871-3410
230V – EU 344871-4410
230V – UK 344871-5410
Accessories
FreeSpace ZA 250-LZ zone amplifier
120V – US 344872-1420
240V – AU 344872-2420
100V – Japan 344872-3420
230V – EU 344872-4420