Skip to main content
Home / Venue Audio Equipment / Constant Voltage Wall-Mounted Speaker 20/30/40W Public Broadcasting Background Music Audio

Attributes

Brand -
Category Audio & Video Electronics / Venue Audio Equipment
Origin -
Power Rating 20W / 30W / 40W (Selectable via Tap)
Impedance 100V / 70V Constant Voltage Line
Frequency Response 80Hz - 16kHz
Sensitivity 90dB ± 3dB (1W/1m)
Material ABS Plastic Housing with Metal Grille
Mounting Type Wall-Mounted with Included Bracket
Dimensions 280mm x 190mm x 95mm
Weight 1.8 kg
Protection Rating IP54 (Splash and Dust Resistant)
Application Public Address, Background Music, Retail, Offices

6 reviews

A

Anonymous

Mar 18, 2026

Rating: 5/5

Reliable and durable

We have had these running 12 hours a day for three months in a busy café. No issues whatsoever. The IP54 rating gives us peace of mind near the coffee station where there is occasional steam and moisture.

A

Anonymous

Mar 17, 2026

Rating: 4/5

Good aesthetic and performance

These blend well into the office ceiling and wall areas. They look professional and the white finish matches our decor. Sound is balanced, though bass is naturally limited given the size, which is expected for this category.

A

Anonymous

Mar 17, 2026

Rating: 5/5

Excellent clarity

Installed these in a school hallway system. Voice intelligibility is excellent, which was our primary requirement for safety announcements. The constant voltage setup worked flawlessly with our existing amplifier.

A

Anonymous

Mar 14, 2026

Rating: 3/5

Decent but instructions could be better

The speaker itself works well once installed. However, the wiring diagram for the power taps was a bit confusing for someone not familiar with 70V systems. Once figured out, it performs as advertised.

A

Anonymous

Mar 11, 2026

Rating: 4/5

Great value for public address

Solid build quality and easy to mount. We use them in a warehouse for announcements and background music. The volume is sufficient for a noisy environment. Only minor issue is the grille could be slightly more robust.

A

Anonymous

Mar 09, 2026

Rating: 5/5

Perfect for our retail store

We installed six of these speakers in our clothing boutique. The sound quality is crisp and clear without being overwhelming. The ability to switch between 20W, 30W, and 40W made zoning very easy during installation.

5 FAQ

Q: Do I need a specific amplifier for these constant voltage speakers?

A: Yes, you will need a public address amplifier that supports 70V or 100V constant voltage output. Standard home stereo amplifiers with low impedance outputs (4-8 ohms) are not compatible without a matching transformer.

Q: Can these speakers be used outdoors under a covered patio?

A: Yes, these speakers have an IP54 rating, which protects against dust and water splashes from any direction. They are suitable for covered outdoor areas like patios or awnings, but should not be directly exposed to heavy rain or submerged.

Q: What is the maximum cable length recommended for these speakers?

A: For optimal performance in a 70V/100V system, you can run cables up to 300 meters depending on the wire gauge used. We recommend using 16 AWG or thicker speaker wire for long runs to minimize signal loss.

Q: Is the mounting bracket included in the box?

A: Yes, the package includes a sturdy metal mounting bracket and all necessary screws and anchors for installing the speaker on drywall or concrete surfaces.

Q: How do I change the wattage setting on the speaker?

A: The speaker features a selectable tap switch located on the back panel near the terminal block. You can easily switch between 20W, 30W, and 40W using a small flathead screwdriver before mounting the unit to the wall.

Explore your interests

View More
All Categories
Best Seller (30)
New List (30)
Protective Case Lid for Pelican Cases - Laptop Insert for Models 1510, 1560, and 1535

Protective Case Lid for Pelican Cases - Laptop Insert for Models 1510, 1560, and 1535

$254.00

Universal 5800 Super Glue for Plastic, Metal, Glass, and Wood, 10-Second Fast Curing

Universal 5800 Super Glue for Plastic, Metal, Glass, and Wood, 10-Second Fast Curing

$2.01

White Noise Wood Chip Core Grid Scented Candle Wooden Core S-Type Brand Name Candle Container Soy Candle Core Wood

White Noise Wood Chip Core Grid Scented Candle Wooden Core S-Type Brand Name Candle Container Soy Candle Core Wood

$1.50

Zunjue 100% Cotton Paper Block 300g Watercolor Paper, Fine/Medium Grain, Thickened 80 Sheets, Neutral Acid-Free Journal Paper for Art Students, Beginners, Watercolor, Colored Pencil, Pen, Light Wash, Marker

Zunjue 100% Cotton Paper Block 300g Watercolor Paper, Fine/Medium Grain, Thickened 80 Sheets, Neutral Acid-Free Journal Paper for Art Students, Beginners, Watercolor, Colored Pencil, Pen, Light Wash, Marker

$27.20

Outdoor Waterproof Dry Bag for Rafting and Creek Walking - Large Capacity Backpack for Swimming, Hiking, Diving, and Flood Rescue

Outdoor Waterproof Dry Bag for Rafting and Creek Walking - Large Capacity Backpack for Swimming, Hiking, Diving, and Flood Rescue

$132.00

Lukang 995 Door and Window Fast-Drying Glass Sealant - Transparent Weather-Resistant Neutral Silicone Structural Adhesive

Lukang 995 Door and Window Fast-Drying Glass Sealant - Transparent Weather-Resistant Neutral Silicone Structural Adhesive

$222.90

Large Flip-Type Water Draining and Air Drying Machine, Fully Automatic Air Knife Blower for Vegetables, Commercial Continuous Drying Equipment

Large Flip-Type Water Draining and Air Drying Machine, Fully Automatic Air Knife Blower for Vegetables, Commercial Continuous Drying Equipment

$15,282.00

Large Capacity Household Quilt Storage Bag - Waterproof and Moisture-Proof Duvet Organizer for Moving, Packing, and Luggage Sorting

Large Capacity Household Quilt Storage Bag - Waterproof and Moisture-Proof Duvet Organizer for Moving, Packing, and Luggage Sorting

$5.88

Scented Candle Aluminum Alloy Turntable 360-Degree Rotating Double-Sided Silent Non-Slip Small Turntable for Cake Decorating and DIY

Scented Candle Aluminum Alloy Turntable 360-Degree Rotating Double-Sided Silent Non-Slip Small Turntable for Cake Decorating and DIY

$30.40

Ceramic Five Oxen Painting Brush Washer – Antique-Style Ink Well for Calligraphy & Traditional Painting

Ceramic Five Oxen Painting Brush Washer – Antique-Style Ink Well for Calligraphy & Traditional Painting

$16.90

Liupintang 3-in-1 Brush Washing Bucket with Palette - Portable Handheld Multi-Function Art Tool for Chinese Painting, Watercolor, and Gouache, Foldable Small Pail

Liupintang 3-in-1 Brush Washing Bucket with Palette - Portable Handheld Multi-Function Art Tool for Chinese Painting, Watercolor, and Gouache, Foldable Small Pail

$17.80

ZGT Type Damped Spring Vibration Isolator for Large Equipment such as Chillers and Diesel Generator Sets

ZGT Type Damped Spring Vibration Isolator for Large Equipment such as Chillers and Diesel Generator Sets

$135.00

Shanlian Lake Brush Wool Felt Mat for Calligraphy and Painting, Washable Desk Pad for Beginners

Shanlian Lake Brush Wool Felt Mat for Calligraphy and Painting, Washable Desk Pad for Beginners

$22.70

New Silicone Data Cable Protector, Anti-Break and Anti-Bite Cord Organizer for Charging Lines and Headphones, Universal Phone Accessory

New Silicone Data Cable Protector, Anti-Break and Anti-Bite Cord Organizer for Charging Lines and Headphones, Universal Phone Accessory

$5.58

Cafeteria Bulb Vegetable Cutter - Complete Kelp Shredding Production Line, All-in-One Slicing, Dicing, and Shredding Machine

Cafeteria Bulb Vegetable Cutter - Complete Kelp Shredding Production Line, All-in-One Slicing, Dicing, and Shredding Machine

$10,000.00

Electric Water Dispenser Pump for Bottled Mineral Water - Automatic Press-Type Purified Water Pump Manufacturer

Electric Water Dispenser Pump for Bottled Mineral Water - Automatic Press-Type Purified Water Pump Manufacturer

$113.00

Heavy-Duty Industrial Wiping Cloths for Auto Painting, Baking, Film Application, Detailing, and Degreasing – Absorbent, Oil-Removing, Lint-Free Paper and Cloth

Heavy-Duty Industrial Wiping Cloths for Auto Painting, Baking, Film Application, Detailing, and Degreasing – Absorbent, Oil-Removing, Lint-Free Paper and Cloth

$120.00

6-Cavity Oval Beehive Silicone Mold for DIY Handmade Soap - Heat-Resistant Non-Stick Large Mold for Milk and Essential Oil Soaps

6-Cavity Oval Beehive Silicone Mold for DIY Handmade Soap - Heat-Resistant Non-Stick Large Mold for Milk and Essential Oil Soaps

$4.93

Data Cable Organizer Bag with Zipper for Charging Cables and Adapters - Dustproof Desktop Storage

Data Cable Organizer Bag with Zipper for Charging Cables and Adapters - Dustproof Desktop Storage

$5.90

Auby Baby Rattle Toy for 6+ Months, Chewable Wave Drum and Shaker for Newborns and Toddlers

Auby Baby Rattle Toy for 6+ Months, Chewable Wave Drum and Shaker for Newborns and Toddlers

$24.90

Preferred 45L Industrial Pulping Machine Spinach Fresh Pulp Galangal Carrot Tomato Sauce Making Fruit and Vegetable Industry Blender

Preferred 45L Industrial Pulping Machine Spinach Fresh Pulp Galangal Carrot Tomato Sauce Making Fruit and Vegetable Industry Blender

$7,632.00

KAD Professional Thickened Sketch Blending Stump - Dual-Head Smudging Pen for Art Students

KAD Professional Thickened Sketch Blending Stump - Dual-Head Smudging Pen for Art Students

$9.90

Beijing Imported Dental Implant Package - Appointment Booking, X-Ray, and Treatment Plan Included

Beijing Imported Dental Implant Package - Appointment Booking, X-Ray, and Treatment Plan Included

$1.00

Huahu [Top Layer Cowhide] Japanese-Style Men's Genuine Leather Belt, Simple Casual Business Wide Belt with Automatic Buckle

Huahu [Top Layer Cowhide] Japanese-Style Men's Genuine Leather Belt, Simple Casual Business Wide Belt with Automatic Buckle

$423.00

Wall-Mounted Towel Storage Box Large Capacity for Bathroom

Wall-Mounted Towel Storage Box Large Capacity for Bathroom

$8.42

Loctite 480/411/403/407/406/414/420/401/415 Heat-Resistant 495 High-Temp 417/416 Instant Adhesive

Loctite 480/411/403/407/406/414/420/401/415 Heat-Resistant 495 High-Temp 417/416 Instant Adhesive

$26.80

Ulanzi CSS1 Camera Quick-Release Shoulder Strap - Universal Anti-Slip Crossbody Belt for Fujifilm, Sony, and Canon DSLR/Mirrorless Cameras

Ulanzi CSS1 Camera Quick-Release Shoulder Strap - Universal Anti-Slip Crossbody Belt for Fujifilm, Sony, and Canon DSLR/Mirrorless Cameras

$109.00

Invisalign Retainer Storage Case Portable Travel Container for Clear Aligners Dentures Orthodontic Appliances Cleaning Q

Invisalign Retainer Storage Case Portable Travel Container for Clear Aligners Dentures Orthodontic Appliances Cleaning Q

$6.59

70*275mm Flocked Abrasive Pad Circular Backing Sanding Disc Polishing Sheet Self-Adhesive Scouring Pad Brushed Finish Cloth

70*275mm Flocked Abrasive Pad Circular Backing Sanding Disc Polishing Sheet Self-Adhesive Scouring Pad Brushed Finish Cloth

$4.05

50/100 Pairs Men's Foot Therapy Short Socks - Odor-Resistant, Low-Cut, Summer Thin, Disposable Street Market Socks

50/100 Pairs Men's Foot Therapy Short Socks - Odor-Resistant, Low-Cut, Summer Thin, Disposable Street Market Socks

$19.99