EAW UB12 Technical Specifications

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APPLICATIONS

The UB12 is purpose-designed for background/surround applications
where sound quality cannot be sacrificed for the sake of visual
unobtrusiveness. It is also an excellent choice for nearfield reproduction
where extreme low frequency response is not required. Ultra-compact
design and surprisingly high output make it an effective component of
large-scale multimedia systems in a broad range of venues and applica­tions.

This “micro” system is engineered for high quality distributed sound
systems of all types. The vented enclosure extends effective low fre­quency response. A 1" soft dome tweeter produces exceptional clarity
and definition. The complex crossover uses computer-optimized asym­metrical filters to smooth on-axis frequency response as well as power
response.

SPECIFICATIONS

Technical Specifications UB12

Frequency Response

±3 dB 98 Hz – 20 kHz

-10 dB 60 Hz

Axial Sensitivity

SPL 1w @ 1m: 91 dB

Impedance

Nominal 8Ω

Power Handling

AES 180 Watts

100 Hour Sine Wave 90 Watts

Maximum Output

Long Term 110 dB SPL

Peak 113 dB SPL

Nominal Coverage Angles (-6 dB)

Horizontal: 120 degrees

Vertical: 120 degrees

Additional Descriptive Data

LF Subsystem 1 x 5.25" Vented

HF Subsystem 1 x 1" soft-dome

Powering Mode Passive

Finish: Black Catalyzed Polyurethane

Connectors: 2-pin Barrier Strip

Grill: Vinyl Coated Perforated Steel

Dimensions & Weights

Height: 10.75 in (273 mm)

Width: 6.375 in (162 mm)

Depth: 5.75 in (146 mm)

Net Weight: 9 lbs. (4.05 kg)

Shipping Weight: 10 lbs. (4.5 kg)

OTHER RELEVANT DOCUMENTS

• Group I Hardware Technical Specifications*

• Group I Price Lists

• APP Testing Procedures*

• Water Proofing Technical Specifications

• Structural/Mechanical Technical Specifications*

ARCHITECTURAL SPECS

The two-way full range loudspeaker system shall incorporate one 5.25­inch cone low frequency transducer and one 25mm soft-dome high
frequency transducer. The total system shall meet the following perfor­mance criteria: Frequency Response of 100 - 18k Hz ±3 dB; Axial Sensi­tivity (1 W @ 1 m) of 91 dB SPL (LF); 100 hour sine wave Power Han­dling of 90 Watts, AES method Power Handling of 180 Watts; Hori­zontal coverage of 120 degrees between 6dB down points; Vertical
coverage of 120 degrees between 6dB down points.

The system’s low frequency driver shall be loaded into a vented enclo­sure that provides optimally controlled acoustic diaphragm loading. An
internal passive frequency dividing network shall provide a fourth order
acoustic crossover between the low and high frequency subsystems
and shall incorporate system equalization. The crossover shall be de­signed so that maximally flat frequency response is obtained.

The enclosure shall be rectangular in shape and constructed of void­free cross-grain-laminated birch plywood with internal bracing. It shall
be finished in a black catalyzed polyurethane coating. The front of the
system shall be covered with a protective perforated steel grill assembly
coated with vinyl to dampen resonance. Mounting hardware attach­ment points shall be located on the top and bottom of the enclosure.
Attachment points for Omnimount
ware shall be located on the rear of the enclosure.

The two-way full range loudspeaker system shall be the EAW model
UB12.

tm

brand 75 series mounting hard-

Acoustic Partnership Performance Eastern Acoustic Works UB12 Page 1

One Main Street, Whitinsville MA, 01524 USA • Phone [phone] • Toll Free 800/992-5013 • Fax [phone] • BBS 800/889-2540

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UB-12

SOUND REINFORCEMENT

SYSTEM

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MADE IN USA

EASTERN ACOUSTIC WORKS

INPUT

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UB-12

SOUND REINFORCEMENT

SYSTEM

NO.

MADE IN USA

EASTERN ACOUSTIC WORKS

INPUT

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Drawings UB12

DIMENSIONAL DRAWINGS

UB12 Left

1/4"-20 T-NUTS

(LEFT SIDE ONLY)

4.13

6.38

FRONT

1/4"- 20 T-NUT/ STANDARD 
COUNTER BORE

10.75

2.50

2.88

5.75

SIDES

6.38

3.19

2.88

5.75

2.13

INPUT PLATES

R .50

2.13

4.50

3.12

BACK

UB12 Right

6.38

FRONT

1/4"- 20 T-NUT/
STANDARD 
COUNTER BORE

R .13

10.75

R .13

TOP/BOTTOM

1/4"-20 T-NUTS
(RIGHT SIDE ONLY)

2.50

2.88

5.75

SIDES

6.38

2.88

3.19

TOP/BOTTOM

4.13

5.75

2.13

R .50

2.13

4.50

3.12

BACK

Acoustic Partnership Performance Eastern Acoustic Works UB12 Page 2

One Main Street, Whitinsville MA, 01524 USA • Phone [phone] • Toll Free 800/992-5013 • Fax [phone] • BBS 800/889-2540

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Performance Data UB12

FREQUENCY RESPONSE INPUT IMPEDANCE

120

100

dB SPL

80

B

K

60

100 1000 10000 20000

UB12 Axial Response

Frequency (Hz)

Q & DIRECTIVITY INDEX (DI)

100

10

Q

Horizontal Q and Directivity (1/3 Octave)

Vertical Q and Directivity (1/3 Octave)

Total Q and Directivity (1/3 Octave)

B

1

K

200 1000 10000

UB12 Q and Directivity

Frequency (Hz)

BEAMWIDTH

360

330
300
270
240

210
180
150

Degrees

120

90
60

B

30

0

200 1000 10000

UB12 Beamwidth vs Frequency

Horizontal Beamwidth (1/3 Octave)

Vertical Beamwidth (1/3 Octave)

K

Frequency (Hz)

20
18
16
14
12
10
8

Directivity Index

6
4
2
0

UB12 Full Range Input Impedance (Magnitude)

20

15

10

Ohms

5

B

K

0

20 100 1000 10000 20000

Frequency (Hz)

Q & BEAMWIDTH BY FREQUENCY

Freq Hor Q Ver Q Tot Q Hor Beamwidth Ver Beamwidth
100 1.2 1.2 1.1 360 360
125 1.1 1 1 360 360
160 1.6 1.5 1.5 360 360
200 1.1 1.2 1.1 360 360
250 1.7 1.7 1.7 360 360
315 1.6 1.6 1.6 360 360
400 1.8 1.9 1.9 360 360
500 2.2 2.4 2.2 360 360
630 2.1 2.2 2.1 360 360
800 2.4 3 2.6 206 173
1000 3.2 4 3.5 191 120
1250 4 4.9 4.3 128 106
1600 4.6 10.2 6.4 120 71
2000 5.2 11.3 7.1 116 51
2500 4.9 7.2 5.8 120 106
3150 3.8 3.9 3.9 137 149
4000 3.1 3.3 3.4 144 146
5000 4.2 3.5 3.3 130 134
6300 6.4 5.6 6 105 115
8000 8.9 10.8 9.7 87 76
10000 11 8.6 9.5 66 77
12500 9.7 8.1 8.8 80 94
16000 18.7 18 18.3 56 55
20000 24.8 18.5 21.4 40 40

Acoustic Partnership Performance Eastern Acoustic Works UB12 Page 3

One Main Street, Whitinsville MA, 01524 USA • Phone [phone] • Toll Free 800/992-5013 • Fax [phone] • BBS 800/889-2540

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Performance Data UB12

HORIZONTAL OFF-AXIS RESPONSE VERTICAL OFF-AXIS RESPONSE

On-axis response normalized to 0 dB. On-axis response normalized to 0 dB.

10

UB12 Horizontal ±10°

10

UB12 Vertical ±10°

0

-10

B

Attenuation in dB

-20

10

0

-10

Attenuation in dB

-20

10

0

-10

Attenuation in dB

-20

10

K

200 1000 10000

B

K

200 1000 10000

B

K

200 1000 10000

Horizontal +10 degrees

Horizontal -10 degrees

Frequency (Hz)

UB12 Horizontal ±20°

Horizontal +20 degrees

Horizontal -20 degrees

Frequency (Hz)

UB12 Horizontal ±30°

Horizontal +30 degrees

Horizontal -30 degrees

Frequency (Hz)

UB12 Horizontal ±40°

0

-10

B

Attenuation in dB

-20

10

0

-10

Attenuation in dB

-20

10

0

-10

Attenuation in dB

-20

10

K

200 1000 10000

B

K

200 1000 10000

B

K

200 1000 10000

Vertical +10 degrees

Vertical -10 degrees

Frequency (Hz)

UB12 Vertical ±20°

Vertical +20 degrees

Vertical -20 degrees

Frequency (Hz)

UB12 Vertical ±30°

Vertical +30 degrees

Vertical -30 degrees

Frequency (Hz)

UB12 Vertical ±40°

0

-10

B

Attenuation in dB

-20
200 1000 10000

K

Horizontal +40 degrees

Horizontal -40 degrees

Frequency (Hz)

0

-10

B

Attenuation in dB

-20

K

200 1000 10000

Vertical +40 degrees

Vertical -40 degrees

Frequency (Hz)

Acoustic Partnership Performance Eastern Acoustic Works UB12 Page 4

One Main Street, Whitinsville MA, 01524 USA • Phone [phone] • Toll Free 800/992-5013 • Fax [phone] • BBS 800/889-2540

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60°

90°

120°

150°

180°

210°

240°

270°

300°

330°

1600

2000

2500

3150

K

B

0°

30°

60°

90°

120°

150°

180°

210°

240°

270°

300°

330°

630

800

1000

1250

K

B

0°

30°

60°

90°

120°

150°

180°

210°

240°

270°

300°

330°

10000

12500

16000

20000

K

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0°

330°

Horizontal 1/3 Octave Polar Data UB12

30°

100

125

300°

60°

160

200

270°

270°

240°

B

300°

240°

B

90°

120°

K

210°

180°

0°

330°

150°

30°

250

315

60°

400

500

90°

120°

K

210°

180°

150°

0°

330°

300°

270°

240°

B

Acoustic Partnership Performance Eastern Acoustic Works UB12 Page 5

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210°

One Main Street, Whitinsville MA, 01524 USA • Phone [phone] • Toll Free 800/992-5013 • Fax [phone] • BBS 800/889-2540

180°

30°

150°

4000

5000

60°

6300

8000

90°

120°