EAW UB42 User Manual

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FEATURES

• Ultra-compact two-way system

• 4x 5.25-in LF (angled baffles)/2x horn-loaded 1-in

exit HF (170° x 50° coverage pattern)

• "Stealth" enclosure provide ultra-wide coverage
virtually unseen

• High output, high definition sound from an
ultracompact enclosure

DESCRIPTION

A 2-way full range system (passive LF/HF crossover) in a
unique ultra-low-profile dual baffle enclosure. Includes 4x

5.25-in woofers and 2x 1-in exit compression driver on dual
constant directivity horns with a combined 170 x 50 cover­age pattern.

APPLICATIONS

The UB42’s unique “Stealth” enclosure provides extreme wide­angled coverage while virtually disappearing from view. Sur­prisingly high output with high definition. Comprehensive
mounting/suspension points. Six year warranty.

Applications include use as in:

Large Theaters (underbalcony fill/delay)
Small Theaters (underbalcony fill/delay)
Large HOW’s (underbalcony fill/delay)
Arenas (distributed)
Major Mall (distributed)

PERFORMANCE

Frequency Response (1 Watt @ 1m)

±3 db 70 Hz to 18 kHz

-10 dB 55 Hz

Efficiency / Axial Sensitivity (dB SPL, 1 Watt @ 1m)

94

Impedance (Ohms)

8

Power Handling, AES Standard (Watts)

350

Calculated Maximum Output (dB SPL @ 1m)

Peak 125.4

Long Term 119.4

Nominal Coverage Angle, -6 dB Points (degrees)

Horizontal 170

Vertical 50

Recommended High-Pass Frequency

24 dB/Octave 50 Hz

SPECIFICATIONS UB42

PHYSICAL

LF Subsystem 4x 5.25-in cones

HF Subsystem 2x 1-in exit compression driver on

constant directivity horn

Configuration 2-way, full range

Powering Passive LF/HF crossover

Cabinet Type (shape) Horizontal wing

Enclosure Materials Baltic birch plywood

Finish Black catalyzed polyurethane

Connectors 2-terminal barrier

Suspension Hardware (3) 1/4”-20 threaded mounting

points (1 each top and sides)

Grille Vinyl coated perforated steel

Mounting Bracket 980010

Dimensions Inches Millimeters

Height 6.25 159

Width 35.25 895
Depth 14.36 365

Weights Pounds Kilograms

Net Weight 32 14.6

Shipping Weight 39 17.7

EASTERN ACOUSTIC WORKS

One Main Street, Whitinsville, MA 01588 • (508) 234 - 6158 • FAX (508) 234 - 8251 • Email [e-mail] • Web http://www.eaw.com
EAW products are continually improved. All specifications are therefore subject to change without notice. • PUB# UB42-888112 (B)/2 pp/5/1/00 • Printed In USA

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DIMENSIONAL DRAWING

DIMENSIONAL DRAWINGS

UB42

MOUNTING POINT, 1/4"-20 THREADED HOLE.
ALL DIMENSIONS IN INCHES UNLESS OTHERWISE SPECIFIED.
CABINET SYMETRICAL ABOUT ITS CENTER LINES.
CENTER OF GRAVITY

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FRONT

2.75

15.50 4.25

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BACK

35.25
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TOP

2.75

1.75

12.38

510168
EXP 3/17/97 SHB

6.50

SIDES

5.38

2.75

14.38

1.13

3.25

SPECIFICATIONS UB42

A& E SPECIFICATIONS

The two-way full range loudspeaker systems shall incorpo­rate 4x 5.25 LF transducers and 2x 1-in exit compression
driver HF transducers.

The HF drivers shall be loaded on dual constant directivity

horns with a combined nominal coverage pattern of 170°
(h) x 60° (v). The LF drivers shall be mounted on separate

angled baffles to match the HF horn’s coverage angle. 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 70 Hz to 18 kHz measured on axis. The loudspeaker
shall produce a Sound Pressure Level (SPL) of 94 dB SPL on
axis at 1 meter with a power input of 1 Watt, and shall be
capable of producing a peak output of 125.4 SPL on axis at
1 meter. The loudspeaker shall handle 350 Watts of amplifier
power (AES Standard) and shall have a nominal impedance
of 8 Ohms.

The loudspeaker enclosure shall be irregular in shape, fea­turing a low vertical profile and a wide horizontal arch. It
shall be constructed of 1/2-in thickness void-free cross-grain­laminated Baltic birch plywood and shall employ extensive
internal bracing. It shall be finished in black catalyzed poly­urethane. Input connectors shall be 2-terminal barrier strip.
A total of three 1/4"-20 Threaded Mounting Points (1 each
top and sides) shall be provided. The front of the loudspeaker
shall be covered with a vinyl coated perforated steel grille.

The two-way full range loudspeaker shall be the EAW model
UB42.

Acoustic Performance Partnership Eastern Acoustic Works UB42

One Main Street, Whitinsville MA, 01588 USA • Phone [phone] • Toll Free 800/992-5013 • Fax [phone] • Web http://www.eaw.com • email [e-mail]