We Are INVISIBLE Speakers


The Stealth Acoustics model LRX-83 is a three-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 LRX-83 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 nonstandard wallboard finishing materials. Advanced finishing methods such as veneer treatments may be supported using special techniques.

The Stealth Acoustics LRX-83 incorporates an acoustically coupled high quality low profile, high-power 8” cone woofer, a 30mm direct coupled neo-magnet mid-range driver and a direct coupled 25 mm neo-magnet high-frequency driver. Advanced internal materials allow for smooth frequency extension to 20 kHz. When the LRX-83 is installed in the recommended back-box, frequency response below 40 Hz can be achieved. The LRX-83 contains two independent protection circuits (high/mid-frequency and low-frequency sections) that automatically reset upon reduction of excessive amplifier power.

Architectural Speaker of the Year

Stealth Acoustics has happy to announce that Home Technology Association (HTA) has recognized the innovations of its newest generation of LineaResponseX speakers for 2022!

Anatomy of a Stealth Invisible Speaker

1 Low Frequency Cone Woofer Driver
2 Transducer High/Mid Frequency Driver
3 Circuit with Crossover, Protection and/or Speaker Wire Terminals
4 FidelityGlass™ Radiating Diaphragm
5 Speaker Perimeter Screw Flange

Soffit Speaker Kits

Invisible Speakers – OUTDOORS! Replace ugly conventional under-eaves speakers that deteriorate in the elements with Stealth Acoustics Soffit Kit speakers for high performance, clean aesthetics, and lasting results.


The flush-mounted Soffit Kit features a specialized StingRay8 or StingRay83 with an integrated back box, mounting hardware, and a router template for cutting a precise opening for installation.

Constant Voltage Series

Stealth’s most popular indoor and outdoor distributed audio speakers are available for commercial audio applications. These Constant Voltage Series (CVS) speakers are compatible with 70/100-volt amplifier systems and have transformer tap values from 5 to 60 watts (depending on the model).


Constant voltage speakers are built to suit. Please call Stealth Acoustics for design assistance, custom orders, and availability.

Recommended Applications

Multi-Room Audio Systems
Foreground Music
Background Music
Voice Paging
Home Theater / Surround Sound
Sound Masking Systems


Specification Sheet
User Manual & Installation Guide
Quick Start Installation Guide
View Instructions
See Video
Dimensional Drawings
Test Results
LineaResponse Brochure

Options & Accessories

PlaceSavers & Shims
PS-22 PlaceSaver
SK-1 Shim Kit
Back Boxes
BX-22 MDF Acoustical Back Box
MBX-22 UL Listed Metal Back Box
MBA-22 UL Listed Adjustable Metal Back Box
MBC-22 Concrete Back Box
Constant Voltage
CVXMR 100, 75 and 25 volt Constant Voltage Transformers
WARRANTY – Extended Warranty 15 year


LRX-83 LRX-85
Type 3-way Full Range 3-way Full Range Two Panels (HM + LF)
Frequency Response 40Hz to 20kHz 35Hz to 20kHz
Power Capacity 160 watts RMS 300 watts RMS
Minimum Recommended Power 80 watts 120 watts
Protection Three independent self-resetting devices (low, mid-range and high frequency) Three independent self-resetting devices (low, mid-range and high frequency)
Sensitivity 83 dB 84 dB
System Impedance 8Ω nominal 8Ω nominal
Polar Dispersion 170 degrees horizontal &vertical 170 degrees horizontal &vertical
Width 15-7/8” (403 mm) HM Panel – 15-7/8” (403 mm)
LF Panel – 15-7/8” (403 mm)
Height 22″ (559 mm) HM Panel – 12” (305 mm)
LF Panel – 30” (762 mm)
Depth 2-1/2” (64 mm) HM Panel – 2-3/4” (70 mm)
LF Panel – 2-1/2” (64 mm)
Weight 32 lbs. (14.5 kg) per pair 61 lbs. (28 kg) – per pair
HF Driver One 1” (25 mm) neodymium motor One 1” (25 mm) neodymium motor
MR Driver One 1-1/8” (30 mm) neodymium motors Four 1-1/8” (30 mm) neodymium motors
LF Driver One 1-1/2” (38mm) voice coil, 8” (203mm) low profile woofer Two 1-1/2” (38mm) voice coil, 8” (203mm) low profile woofer
Magnet Ceramic 20 oz. (567 gr) Ceramic 20 oz. (567 gr)
Crossover Frequency