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Specifications subject to change without notice

© 2001 Atlas Sound LP

Printed in U.S.A.

000501

SL2-1411

149

TWO

1601 JACK MCKAY BLVD. /  ENNIS, TEXAS 75119  U.S.A.  /  TELEPHONE: (800) 876-3333 /  FAX (800) 765-3435

BI-AXIAL HORN WITH GIMBAL-MOUNT

BIA-100

FEATURES

• High-Efficiency Bi-Axial Horn Provides 130˚ x 60˚ Wide-Angle 

Sound Coverage

• Combine with PD Series Drivers 

• Nominal Frequency Response of 350-8,000 Hz for High-Intelligibility

Voice, Signaling and Full-Range Music in Indoor/Outdoor Applications

• Patented 180˚ Gimbal-Mount for Installation Flexibility

• Accepts All Atlas Sound and 1

3

8

" - 18 Thread Compression Drivers

with Throat Openings of 0.7" Dia.

APPLICATIONS

Bi-axial horn Model BIA-100 delivers outstanding sound dispersion
and audio efficiency when used with medium or  high powered 
compression drivers.  Unit features exponentially-flared projectors
which eliminate phase cancellation, control  low-frequency roll off
and offers maximum results in professionally-applied voice, music
and signaling systems.   It can be surface or flange-mounted and is
ideal for use as a mid-range component for two and three-way,
high-fidelity loudspeaker systems.  Weather-resistant construction is
suitable for permanent or portable installation in church, recrea-
tion/sport centers, mass transit terminals, industrial, commercial,
educational and institutional facilities.  

GENERAL DESCRIPTION

Model BIA-100 is the original reflex horn featuring a bi-axial design
with twin air columns and exponential bell for wide-angle coverage
with a linear frequency response.  The horn provides excellent
acoustic loading maintained to a 350 Hz low-frequency roll-off and
optimizes delivery of high and mid-range signal levels.  BIA-100 is
designed for use with Atlas Sound PD Series compression drivers
and models having 1

3

8

" -18 male threads and 0.707" dia. throat

openings.  Refer to PD Series compression driver specification
sheets for high-pass filter requirements.  Transformer-equipped
drivers are available (power-tap information is outlined on individual
compression driver specification sheets).  The easily-mounted horn
features the labor-saving patented gimbal-mount bracket assembly
(U.S. Patent # 4,325,529) which allows for directional positioning
up to 180˚ vertically and horizontally.  It includes a steel bracket,
cast-mounting base and provisions for flange installation.  The
weather-resistant, non-glare matte black foam horn is resistant to
resonance.  Bracket assembly is finished in durable epoxy.  Overall
dimensions are 21"W x 10

1

4

"H x 19

1

4

"D (533 x 260 x 489 mm).

Weight is 16 lbs.

POWER SOUND 

LEVEL

**DISPERSION

IMPEDANCE

MODEL

RATING

PEAK

*RP / 1M, 1W / 1M

BIA-100 w/ PD-30

30

125dB

121dB, 107dB, 400-5200 Hz

8 ohm

BIA-100 w/ PD-5VH

40

126dB

121dB, 106dB, 300-6300 Hz

130

˚

x 60

˚

16 ohm

BIA-100 w/ PD-60A

60

128dB

125dB, 108dB, 300-6000 Hz

16 ohm

* Measured at Rated Power, 1 Meter (avg)
**Angle Shown for -6dB, 2 kHz Octave Band

BIA-100

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