STEALTH L-RAD 116 6.5 Inch 2 Way Invisible Loudspeaker In Wall Or In Ceiling Owner’s Manual
- July 19, 2024
- STEALTH
Table of Contents
STEALTH L-RAD 116 6.5 Inch 2 Way Invisible Loudspeaker In Wall Or In
Ceiling Owner’s Manual
Recommended Applications:
Multi-Room Audio Systems Background Music Foreground Music Voice Paging Sound
Masking Systems Home Theater / Surround Sound
Recommended Installations:
Flush mounted in walls or ceilings constructed of wood or steel framing with
½” (13 mm) or thicker gypsum wallboard.
Min. Cavity Depth Required:
3¼” (83 mm) or 2 9/16” (65 mm) with back box removed
Performance:
100 Watts RMS 45Hz to 20kHz (see Figure 1) 50W min, recommended power
Protection:
Two independent self-resetting circuits (low and high-frequency).
On-Site Finish Options:
Finish options include latex paint, flat finish, orange peel texture, light
plaster, light wallpaper, light fabric, wood veneer, and other selected
approved finishes.
The Stealth Acoustics Model L-RAD 116 is a two-way, full-range loudspeaker
system that becomes completely invisible after installation.
The loudspeaker has a rigid frame that attaches directly to standard
structural framing. The paintable active diaphragm face is bonded to the frame
of the speaker panel, creating an active area surrounded by a stable mounting
area. Installation instructions are shown on a paper overlay that is to be
removed before installation.
The overlay can also be used as a cutting template for retrofitting the
speakers into existing wallboard.
The L-RAD 116 may be installed in either the wall or ceiling and on-site
finishing options include latex paint, light wallpaper, fabrics and selected
texture coats. There is no need for special vellums or other nonstandard
wallboard finishing materials. Advanced finishing methods may be supported
using special
techniques.
The Stealth Acoustics L-RAD 116 incorporates an acoustically coupled high
quality, high-power 6.5″ cone woofer, a direct coupled 30 mm neo-magnet
highfrequency driver, and an acoustically tuned back box . Advanced internal
materials allow for smooth frequency extension to 20kHz. When the L-RAD 116 is
installed in standard insulated 2″ × 4″ framing and allowed to function in a
full 8 foot stud bay, frequency response below 45Hz can be achieved. The L-RAD
116 contains two independent protection circuits (high frequency and low-
frequency sections) that automatically reset upon reduction of excessive
amplifier power.
For proper registration, each speaker must be installed so that the surface of
the perimeter edge is flush with the adjoining wallboard. When correctly in
place, the surface of the speaker face panel extends above the height of the
wallboard by 1/16″ (1.6 mm). This is done to allow space for the tape and
joint compound needed to blend the panel into the wall. Shims are included to
allow for mounting in wallboard thicker than ½” (13 mm).
Stealth Acoustics’ invisibility offers powerful advantage over traditional
loudspeakers because they can be placed wherever they sound best, free of
visual concerns that may conflict with architectural features. Accompanying
the full range panels, Stealth Acoustics offers completely invisible companion
subwoofers for extended low frequency response.
The L-RAD 116 also has 100 and 70 volt constant voltage transformers available
as factory installed options All Stealth Acoustic products are covered by a 20
year manufacturer’s warranty.
Architectural & Engineering Specifications
The loudspeaker shall be a two-way, full-range device, producing frequencies
from 45Hz to 20kHz. The total radiating surface shall be 163 sq. in (1051 sq.
cm) and high frequency dispersion shall be a nominal 170 degrees in both
horizontal and vertical planes. The loudspeaker system shall have a
sensitivity of 83 dB, 1 watt / 1 meter, with a capacity of 100 watts RMS
according to EIA standard RS-426-A. The loudspeaker shall have two independent
self-resetting protection devices, one each for the high-frequency driver and
the low-frequency driver.
The loudspeaker shall fit into walls or ceilings with standard wood or steel
stud construction and a minimum 3¼” (83 mm) depth cavity. (2 9/16” (65 mm)
with back box removed) The loudspeaker shall mount directly to the structural
framing and have the capability of seamlessly adjoining ½” (13 mm) or thicker
gypsum wallboard. The minimum distance between framing members shall be 13¾”
(350 mm) or 9½” (241 mm) with back box removed. Face panel finishing methods
shall be consistent with normal gypsum wallboard finishing techniques and may
include latex paint, light wallpaper, light fabric wood veneer and other
selected approved finishes.
The loudspeaker shall be the Stealth Acoustics Model L-RAD 116 and shall carry
a 20 year manufacturer’s warranty.
Product Specifications
Frequency Response:
45Hz to 20kHz (see Figure 1)
Power Capacity:
100 watts RMS 50 watts minimum recommended power
Protection:
Two independent self-resetting devices (low and high frequency)
Sensitivity:
83 dB (1 watt / 1 meter)
Driver Components:
High frequency: 1⅛” (30 mm) neodymium driver Low-frequency: 1″ (25 mm) voice
coil, 6.5″ (165 mm) woofer, 15 oz. (425 gr) ceramic magnet
System Impedance:
8Ω nominal
Polar Dispersion:
170 degrees vertical and horizontal
Dimensions:
Width: 15⅞” (403 mm)
Height: 15⅞” (403 mm)
Mounting Depth: 3¼” (83 mm) 2 9/16” (65 mm) with back box removed
Product Weight:
13 lbs. (5.9 kg)
Shipping Weight:
30 lbs. (13.6 kg) per pair 17 lbs. (7.7 kg) per single
Included Accessories:
Mounting shims Mounting screws
Optional Accessories:
PS-16: Place Saver™
MBX-22: UL Listed Metal Back Box
MBA-22: UL Listed Metal Back Box – Adjustable
MBC-22: Concrete Back Box
SK-1: Shim Kit
CVXMR: 100 and 75 volt Constant Voltage FM
Figure 1: On-axis frequency response in standard stud wall with four coats of latex paint applied to the speaker face panel.
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