U.S.A. and Canada only.
For customer orders, contact the Customer Service department at
800/392-3497 Fax: 800/955-6831
For warranty repair or service information, contact the Service
Repair department at 800/685-2606
For technical assistance, contact Technical Support at 800/392-3497
Please refer to User Guide Sheet for warranty information.
Specifications subject to change without notice.
Architectural Specifications
The subwoofer loudspeaker system shall
incorporate one passive or biampable
18
LF transducer mounted in a vented,
slot-loaded enclosure tuned for optimum
low frequency response.
System frequency response shall vary no more
than ±3 dB from 45 Hz to 160 Hz measured
on axis.The loudspeaker shall produce a
sound pressure level (SPL) of 97 dB (100 dB
half-space) on axis at 1 meter with a power
input of 1 watt, and shall be capable of
producing a peak output of 129 dB (132 dB
half-space) on axis at 1 meter.The loudspeaker
shall handle 400 watts of amplifier power
long-term (EIA Standard), and shall have a
nominal impedance of 8 ohms.
The loudspeaker enclosure shall be trapezoidal
in shape. It shall be constructed of 13 ply void-
free cross-grain-laminated Birch plywood and
shall employ extensive internal bracing. It shall
be finished in black acrylic. Input connectors
shall be two at 2 terminal barrier strips.A total of
sixteen 3/8 -16 threaded mounting/suspension
points (4 each top, bottom, sides) shall be
provided.The front of the loudspeaker shall a
cloth coverable powder-coated perforated 16
GA steel grille.
The sub bass loudspeaker shall be the
Electro-Voice model FRi-181S.
Speaker Characteristics
Frequency Response (passive)
±3 dB
45 Hz-160 Hz
-10 dB
36 Hz-250 Hz
Axial Sensitivity (full-space/half-space)
(SPL/1 watt/1m)
97 dB/100 dB
Impedance
8 ohms
Power Handling
Passive
Long-term (EIA)
400 watts
Short-term peak
1,600 watts
Calculated Maximum Output SPL (full-space/half-space)
Peak
129/132 dB
Long Term
123/126 dB
Nominal Coverage Angle
Horizontal
(-6 dB)
300°
Vertical
(-6 dB)
270°
Dimensions
Height
27.92 in.
(711 mm)
Width in front
23.51 in.
(597 mm)
Width in back
15.93 in.
(404 mm)
Depth
30.00 in.
(762 mm)
Trapezoid Angle
7.5° per side
Weights
Net Weight
100 lb.
(45.5 kg)
Shipping Weight
110 lb.
(50.0 kg)
Specification Sheet FRi-181S
Front View
(with grille)
Front View
(with grille removed)
Side View
(with grille removed)
Back View
Top View
27.92
23.51
30.00
15.93
USA
12000 Portland Ave South, Burnsville, MN 55337, Phone: 952-884-4051, FAX: 952-884-0043
Canada
705 Progress Avenue, Unit 46, Scarborough, Ontario, Canada, M1H2X1, Phone: 416-431-4975, 800-881-1685, FAX: 416-431-4588
Switzerland
Keltenstrasse 11, CH-2563 IPSACH, Switzerland, Phone: 41/32-331-6833, FAX: 41/32-331-1221
Germany
Hirschberger Ring 45, D94315, Straubing, Germany, Phone: 49 9421-706 392, Fax: 49 9421-706 287
France
Parc de Courcerin, Allee Lech Walesa, Lognes, 77185 Marne La Vallee, France, Phone: 33/1-6480-0090, FAX: 33/1-6480-4538
Australia
Unit 23, Block C, Slough Business Park, Slough Avenue, Silverwater, N.S.W. 2128, Australia, Phone: 61/2-9648-3455, FAX: 61/2-9648-5585
Hong Kong
Unit E & F, 21/F, Luk Hop Industrial Bldg., 8 Luk Hop St., San PO Kong, Kowloon, Hong Kong, Phone: 852-2351-3628, FAX: 852-2351-3329
Japan
2-5-60 Izumi, Suginami-ku, Tokyo, Japan 168, Phone: 81-3-3325-7900, FAX: 81-3-3325-7789
Singapore
3015A Ubi Rd 1, 05-10, Kampong Ubi Industrial Estate, Singapore 408705, Phone: 65-746-8760, FAX: 65-746-1206
Mexico
Av. Parque Chapultepec #66-201, Col. El. Parque Edo. Mex. 53390, Phone: (52) 5358-5434, FAX: (52) 5358-5588
UK
4, The Willows Centre, Willow Lane, Mitcham, Surrey CR4 4NX, UK, Phone: 44 181 640 9600, FAX: 44 181 646 7084
Africa, Mid-East
12000 Portland Ave South, Burnsville, MN 55337, Phone: 952-887-7424, FAX: 952-887-9212
Latin America
12000 Portland Ave South, Burnsville, MN 55337, Phone: 952-887-7491, FAX: 952-887-9212
www.electrovoice.com • Telex Communications, Inc. • www.telex.com
©Telex Communications, Inc. 6/2000 Part Number 535885-4.00
