EAW UB12Se, UB12Si Specification Sheet

Eastern Acoustic Works One Main Street Whitinsville, MA 01588 tel [phone] fax [phone] www.eaw.com

EAW products are continually improved. All specifications are therefore subject to change without notice. Part Number: 027773-90 June 2009

UB12Si Speci f i cations group · I

2-Way full-range ultra-CompaCt loudspeaker

See NOTES TABULAR DATA for details

PERFORMANCE

Frequency Response (1 W @ 1m):

±3 dB 98 Hz to 20 kHz

-10 dB 60 Hz

Axial Sensitivity (dB SPL, 1 W @ 1m):
89

Impedence (Ohms): 8

Power Handling, AES Standard (Watts):

140*

Calculated Maximum Output (dB SPL @ 1m):

Peak 116.5*

Long Term 110.5*

Nominal Coverage Angles, -6 dp Points (degrees):
Conical 120

Recommended High-Pass Frequency:

FEATURES

• Ultra-compact two-way system

• 5.25-in LF/1-in tweeter

• Magnetically shielded for use with video monitors

• High-output, high-definition sound from an ultra-compact enclosure

DESCRIPTION

Despite its compact size, the UB12Si will faithfully deliver high-output,
high-definition sound for a wide variety of professional applications.
All system elements, including drivers, crossover/filter components,
and the enclosures themselves are designed to meet EAW’s rigorous
standards for reliablility and durability.

The system operates in fully passive mode with an internal passive
crossover/filter network both dividing the signal and providing critical
equalization functions.

Each UB12Si includes a robust 5.25-in woofer mounted in an optimally
vented enclosure and a 1-in soft dome tweeter specifically designed to
provide smooth, studio-quality high-frequency reproduction.

APPLICATION

As a stand alone system, the UB12Si delivers full range output
at surprisingly high levels with flat response for a wide range of
professional audio applications including multimedia production and
presentation, corporate audio/visual systems, retail spaces, project
recording studio, and home theaters. It is also a popular choice as
a secondary distributed reinforcement system providing additional
coverage in virtually any large scale installation such as theaters,
performing arts centers, houses of worship and even arenas and
stadiums.The ultra-compact enclosures can be unobtrusively mounted
almost anywhere. The system includes 1/4-in threaded mounting
points, two sets of which are configured to accept an Omnimount
Series 20.5. They are also magnetically shielded for use in immediate
proximity to video monitors making them an excellent choice for any
multimedia application.

24 dB/Octave 60 Hz

PHYSICAL

Configuration 2-way, full-range

Powering Passive LF/HF crossover

LF Subsystem 5.25-in cone, vented

HF Subsystem 1-in soft dome tweeter

Coverage Angles 120° (conical)

Cabinet Type (shape) Rectangular

Enclosure Materials MDF

Finish Black polyurethane

Connectors 2-contact terminal strip, Neutrik NL4 Speakon

Suspension Hardware (6) 1/4” -20 threaded mounting points (1 each
top and bottom, 2 on each side to accept
Omnimount 20.5)

Grille Powder-coated perforated steel , foam backed

Companion Systems:

Sub SB48zP

Accessories U-Bracket (606001)

Dimensions: Inches Millimeter

Height 10.75 273

Width 6.38 162

Depth 6.00 152

Weights: Pounds Kilograms

Net Weight (each) 9.2 4.2

Shipping Weight (each) 12 5.4

Applications

• MultiMedia • Ballroom Events

• Boardrooms • Restaurants

• Theaters • Small Retail

Eastern Acoustic Works One Main Street Whitinsville, MA 01588 tel [phone] fax [phone] www.eaw.com

EAW products are continually improved. All specifications are therefore subject to change without notice. Part Number: 027773-90 June 2009

UB12Si Speci f i cations group · I

10.75

GRILLE PARTIALLY SHOWN

FRONT

[273.1]

6.37

[161.9]

TOP/BOTTOM

2.75 NOT TO
SCALE[69.9]

6.00

C

L

[152.4]

NOTES:

1. SYMBOL INDICATES MOUNTING POINT,
1/4-20 THREADED HOLE.

2. SYMBOL INDICATES CENTER OF BALANCE.

3. WEIGHT APPROX. 9.20 lb [4.2 kg].

4. SHIPPING WEIGHT APPROX. 12.00 lb [5.4 kg].

4.88

INPUT

4.88

[124.0]

BACK

4.63

1.88

[117.5]

[47.7]

[123.9]

L

C

(3.87)

RIGHT SIDE

DIMENSIONS APPLY TO BOTH SIDES

3.00

FOR

3.00

[76.2]

[98.4]

OMNI MOUNT

20.5 SERIES

[76.2]

L

C

UB12Si

DIMENSIONAL DRAWING

A & E SPECIFICATIONS

The two-way full-range loudspeaker system shall incorporate a 5.25-in

LF transducers and a 1-in soft dome tweeter HF transducer.

The LF driver shall be mounted in a vented enclosure tuned for

optimum low frequency response. The drivers shall be magnetically
shielded for use in immediate proximity to video monitors. An internal
passive filter network shall provide fourth order acoustical crossover
and system equalization.

System frequency response shall vary no more than ±3 dB from 98 Hz
to 20 kHz measured on axis. Operated with a high pass filter set a 90 Hz
(24 dB /octave) the loudspeaker shall produce a Sound Pressure Level
(SPL) of 89 dB SPL on axis at 1 meter with a power input of 1 Watt, and
shall be capable of producing a peak output of 116.5 SPL on axis at 1

meter. The loudspeaker shall handle 140 Watts of amplifier power (AES
Standard) and shall have a nominal impedance of 8 Ohms.

The loudspeaker enclosure shall be rectangular in shape. It shall be

constructed of 3/4 thickness medium density fiberboard (MDF). It shall

be finished in wear resistant textured black paint. Input connectors

shall be 2-contact terminal strip and Neutrik NL4 Speakon. A total of
six 1/4”-20 Threaded Mounting Points (1 each top and bottom, 2 on

each side configured to accept an Omnimount Series 20.5) shall be
provided. The front of the loudspeaker shall be covered with a powder
coated perforated steel grille backed with open cell foam to protect
against dust. The two-way full range loudspeaker shall be the EAW
model UB12Si.

NOTES

TABULAR DATA

1. Measurement/Data Processing Systems: Primary - FChart: proprietary EAW software; Secondary - Brüel & Kjær 2012.

2. Microphone Systems: Earthworks M30; Brüel & Kjær 4133

3. Measurements: Dual channel FFT; length: 32 768 samples; sample rate: 48 kHz; logarithmic sine wave sweep.

4. Measurement System Qualication (includes all uncertainties): SPL: accuracy +/-0.2 dB @ 1 kHz, precision +/-0.5 dB 20 Hz to 20 kHz, resolution 0.05 dB; Frequency: accuracy +/-1 %,

precision +/-0.1 Hz, resolution the larger of 1.5 Hz or 1/48 octave; Time: accuracy +/-10.4 μs, precision +/-0.5 μs, resolution 10.4 μs; Angular: accuracy +/-1°, precision +/-0.5°, resolution 0.5°.

5. Environment: Measurements time-windowed and processed to eliminate room eects, approximating an anechoic environment. Data processed as anechoic or fractional space, as noted.

6. Measurement Distance: 7.46 m. Acoustic responses represent complex summation of the subsystems at 20 m. SPL is referenced to other distances using the Inverse Square Law.

7. Enclosure Orientation: For beamwidth and polar specications, as shown in Mechanical Specication drawing.

8. Volts: Measured rms value of the test signal.

9. Watts: Per audio industry practice, “loudspeaker watts” are calculated as voltage squared divided by rated nominal impedance. Thus, these are not True Watt units of energy as dened
by International Standard.

10. SPL: (Sound Pressure Level) Equivalent to the average level of a signal referenced to 0 dB SPL = 20 microPascals.

11. Subsystem: This lists the transducer(s) and their acoustic loading for each passband. Sub = Subwoofer, LF = Low Frequency, MF = Mid Frequency, HF = High Frequency.

12. Operating Mode: User selectable congurations. Between system elements, a comma (,) = separate amplier channels; a slash (/) = single amplier channel. DSP = Digital Signal Processor.

IMPORTANT: To achieve the specied performance, the listed external signal processing must be used with EAW-provided settings.

13. Operating Range: Range where the processed Frequency Response stays within -10 dB SPL of the power averaged SPL within this range; measured on the geometric axis. Narrow band
dips are excepted.

14. Nominal Beamwidth: Design angle for the -6 dB SPL points, referenced to 0 dB SPL as the highest level.

15. Axial Sensitivity: Power averaged SPL over the Operating Range with an input voltage that would produce 1 W at the nominal impedance; measured with no external processing on
the geometric axis, referenced to 1 m.

16. Nominal Impedance: Selected 4, 8, or 16 ohm resistance such that the minimum impedance point is no more than 20% below this resistance over the Operating Range.

17. Accelerated Life Test: Maximum test input voltage applied with an EIA-426B dened spectrum; measured with recommended signal processing and Recommended Protection Filter.

18. Calculated Axial Output Limit: Highest average and peak SPLs possible during the Accelerated Life Test. The Peak SPL represents the 2:1 (6 dB) crest factor of the Life Test signal.

19. High Pass Filter: This helps protect the loudspeaker from excessive input signal levels at frequencies below the Operating Range.

GRAPHIC DATA

1. Resolution: To remove insignicant ne details, 1/12 octave cepstral smoothing was applied to acoustic frequency responses and 1/3 octave cepstral smoothing was applied to the
beamwidth and impedance data. Other graphs are plotted using raw data.

2. Frequency Responses: Variation in acoustic output level with frequency for a constant input signal. Processed: normalized to 0 dB SPL. Unprocessed inputs: 2 V (4 ohm nominal
impedance), 2.83 V (8 ohm nominal impedance), or 4 V (16 ohm nominal impedance) referenced to a distance of 1 m.

3. Processor Response: The variation in output level with frequency for a constant input signal of 0.775 V = 0 dB reference.

4. Beamwidth: Average angle for each 1/3 octave frequency band where, starting from the rear of the loudspeaker, the output rst reaches -6 dB SPL referenced to 0 dB SPL as the highest

level. This method means the output may drop below -6 dB SPL within the beamwidth angle.

5. Impedance: Variation in impedance magnitude, in ohms, with frequency without regard to voltage/current phase. This means the impedance values may not be used to calculate True
Watts (see 9 above).

6. Polar Data: Horizontal and vertical polar responses for each 1/3 octave frequency band 100 Hz to 16 kHz or Operating Range.

* Data indicate system performance in use with a 24 dB/oct. high-pass filter
set at 90 Hz as is typical in most professional usage. Operation with the
specified 60 Hz highpass frequency will yield 100 Watts power handling
and a calculated peak output of 115.0 dB SPL @ 1m.