A warehouse PA system is a 70V commercial audio setup that uses horn speakers, multizone amplifiers, and paging microphones to broadcast announcements, emergency alerts, and scheduled tones across large warehouse floors. The right system cuts through forklift noise, covers high ceilings, and reaches every zone from loading docks to cold storage.
This guide breaks down the core components of a warehouse PA system, compares eight commercial-grade options, and covers the design and compliance factors that determine whether your system actually works on day one.
Key Takeaways
- 70V is the warehouse standard. Unlike consumer stereo setups, 70-volt distributed audio lets you daisy-chain dozens of speakers across long wire runs without volume drop or signal loss.
- Horn speakers handle warehouse noise. High-output, directional horn speakers rated IP65 or higher cut through machinery, forklifts, and HVAC systems that drown out ceiling speakers.
- IP and 70V analog serve different needs. IP/PoE speaker systems offer remote management and VoIP integration. Traditional 70V systems cost less per speaker and work on existing wiring.
- OSHA sets the floor for audibility. Employee alarm systems must be perceived above ambient noise levels by all employees in the affected area of the workplace.
- Professional installation pays off in code compliance. NEC Article 725 governs 70V audio wiring, requiring CL2/CL3 rated cable for in-wall and ceiling runs.
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What Is a Warehouse PA System?
A warehouse PA (public address) system is a commercial audio installation designed to deliver clear voice paging, emergency notifications, and scheduled alerts across large, high-noise industrial spaces. It is not the same thing as a portable event PA or a consumer Bluetooth speaker.
Warehouses create unique audio challenges. Ceilings reach 30 feet or higher. Forklifts, conveyor belts, and HVAC systems push ambient noise above 80 dB. Steel racking creates dead zones where sound reflects and scatters. A standard office speaker system cannot overcome these conditions.
A purpose-built warehouse PA system solves these problems with three core capabilities:
- Live voice paging. Managers broadcast announcements to the entire facility or to specific zones (shipping, receiving, cold storage) through a push-to-talk microphone.
- Emergency mass notification. The system triggers audible alarms and, where required, visual strobe alerts that meet OSHA 1910.165 requirements for employee alarm systems.
- Scheduled tones and break bells. Programmable timers automate shift changes, break signals, and recurring announcements without manual intervention.
Modern systems also integrate with VoIP cloud phone platforms, letting staff page from a desk phone, softphone app, or SIP-compatible device anywhere on the network.
Essential Components of a Warehouse PA System
A warehouse PA system has four main components. Each one affects coverage, sound quality, and how well the system performs in a high-noise environment.
70-Volt Commercial Amplifiers
A 70V amplifier is the backbone of any warehouse audio system. Unlike standard 8-ohm stereo amplifiers, a 70-volt system uses a step-up transformer that lets you wire dozens of speakers in parallel across runs of 1,000 feet or more without losing volume. Each speaker has a tap selector that controls how much wattage it draws from the line.
Size the amplifier at 1.25 times the total combined wattage of all connected speakers. A system with 20 speakers tapped at 10 watts each (200W total) needs a 250W amplifier to maintain headroom and prevent clipping. Use 14 to 18 AWG CL2 or CL3 rated wire for all in-wall and ceiling runs, per NEC Article 725.
Horn and Pendant Speakers
Horn speakers are the standard for warehouse floors. Their directional design projects sound over long distances, cutting through forklift engines, conveyors, and dock door motors. Look for IP65-rated or higher horns that resist dust, moisture, and temperature swings common in warehouse environments.
Pendant speakers hang from steel cables below high ceilings and provide more even coverage over workstations, packing areas, and break rooms. Use pendant speakers in zones where ambient noise is lower and speech clarity matters more than raw volume.
Ceiling-mount speakers work in office areas, conference rooms, and enclosed break rooms adjacent to the warehouse floor, but they lack the output and directionality to cover open warehouse bays.
Push-to-Talk (PTT) Microphones
A desktop gooseneck microphone with a PTT button is the primary paging input. Zone-select buttons let the operator page a single zone (shipping only) or the entire facility. Wall-mount handset stations at loading docks and doorways give floor staff a way to respond or initiate pages.
Audio Integration and Scheduling
Current warehouse PA systems integrate with VoIP phone platforms through SIP trunking. This means any phone on the network can page any zone, and the PA system can receive scheduled triggers from the PBX for break bells, shift-change tones, and emergency broadcasts. Some IP-based systems also connect to building automation for HVAC alerts, water leak sensors, and air quality monitors.
8 Best Warehouse PA Systems in 2026
The following systems are built for commercial and industrial warehouse environments. Each one uses either a 70V distributed audio architecture or an IP/PoE network-based approach. For more on overhead paging system options and business paging configurations, see our related guides. Portable event PAs and consumer Bluetooth speakers are excluded because they lack the power, durability, and zoning capabilities that warehouses require.
1. Wahsega IP Speaker System
Best for: IP/PoE warehouse deployments with VoIP integration
Wahsega’s IP speakers run on standard PoE network infrastructure and integrate directly with cloud phone systems. The platform supports live paging, scheduled break bells, emergency mass notification, door buzzers, and building monitoring (HVAC, air quality, water leaks) through a single management console. A patented multi-room wiring design reduces cabling costs compared to traditional home-run configurations.
- Technology: IP/PoE (network-based)
- Key specs: PoE-powered, zero-touch cloud provisioning, SIP-compatible, multi-zone paging
- Best for: Facilities that already run VoIP phone systems and want remote management
- Pricing: Indoor models start around $489; outdoor IP65 models around $539 to $599 (as of July 2026)
- Not for you if: You need to cover 100,000+ square feet on a tight budget. IP speakers cost more per unit than 70V horn speakers.
2. Pure Resonance Audio Factory and Warehouse PA System
Best for: Large warehouse coverage with high-output horn speakers
Pure Resonance Audio sells pre-configured warehouse PA packages ranging from 2-speaker kits to 12-speaker industrial systems. Their H6 6.5-inch all-weather horn loudspeakers are IP65-rated, deliver a frequency response of 90 Hz to 16 kHz, and produce 92 dB SPL per speaker. The included multizone mixer amplifier supports multiple paging zones and background music.
- Technology: 70V distributed audio
- Key specs: IP65 horns, 92 dB SPL, 90 Hz to 16 kHz range, multizone mixer amplifier, emergency cut-off priority input
- Best for: Large warehouses (10,000 to 50,000+ sq ft) that need loud, clear paging across open floors
- Pricing: Packages range from approximately $1,200 for basic 2-speaker setups to $7,800 for 12-speaker industrial configurations (as of July 2026)
- Not for you if: You want IP-based remote management or VoIP integration. This is a traditional analog system.
3. Valcom Commercial Paging Horn Kit
Best for: Small to mid-size warehouses on a budget
The Valcom paging horn kit is a standalone system that covers up to 12,000 square feet. It includes paging horns, an amplifier, and a paging microphone in a single package. The system connects to a standard phone line or PBX for telephone-initiated paging and supports expansion up to 150 speakers.
- Technology: 70V analog
- Key specs: 12,000 sq ft coverage, expandable to 150 speakers, telephone paging input
- Best for: Warehouses up to 12,000 sq ft that need basic one-way paging without a complex setup
- Pricing: Base kits list around $715 through commercial AV distributors (as of July 2026; check availability with your supplier)
- Not for you if: You need IP integration, multi-zone control, or emergency mass notification features.
4. Visiplex Wireless PA System
Best for: Wireless deployment in large distribution centers
Visiplex specializes in wireless PA and mass notification systems for industrial facilities. Their systems are deployed in Amazon fulfillment centers and other large distribution facilities, according to Visiplex. The platform supports live voice paging, scheduled break bell alerts, emergency mass notification with beacon lights, LED message boards, and multi-lingual pre-recorded messages. It runs on a wireless infrastructure that requires no speaker cabling.
- Technology: Wireless (proprietary RF)
- Key specs: No wiring required, LED message boards, beacon lights, ADA-compliant visual alerts, multi-lingual support, full power backup
- Best for: Large facilities (100,000+ sq ft) where running speaker cable is impractical or cost-prohibitive
- Pricing: Custom-quoted based on facility size and configuration
- Not for you if: Your warehouse is small enough that wired 70V is straightforward. Wireless systems carry a higher per-unit cost.
5. DMR Digital Wireless PA System
Best for: Radio-based wireless paging with two-way capability
The DMR (Digital Mobile Radio) wireless PA system connects a two-way radio to a wireless PA receiver and loudspeaker. It covers distances up to 7,500 feet, supports two loudspeakers per receiver, and includes an emergency backup power feature. The 2-Tone Decode security feature ensures that only authorized radios can trigger pages.
- Technology: Wireless (DMR radio)
- Key specs: 7,500 ft range, 2 loudspeakers per receiver, 2-Tone Decode security, emergency backup
- Best for: Warehouses that already use two-way radios and want to add overhead paging without new infrastructure
- Pricing: Approximately $815 (as of July 2026)
- Not for you if: You need multi-zone control, VoIP integration, or scheduled automation. This is a simple radio-to-PA bridge.
6. MURS/VHF Wireless PA Sound System
Best for: Multi-frequency flexibility with plug-and-play setup
This wireless PA system operates on MURS, UHF, VHF, GMRS, and FRS frequencies. It broadcasts voice messages, music, and emergency announcements from base station intercoms or handheld two-way radios to an amplifier and speaker. The system requires no FCC license on MURS and FRS bands and sets up without professional configuration.
- Technology: Wireless (multi-frequency radio)
- Key specs: MURS/UHF/VHF/GMRS/FRS compatible, base station and handheld radio input, amplifier and speaker output
- Best for: Small warehouses or loading docks that want a quick, no-wiring paging solution
- Pricing: Approximately $754 (as of July 2026)
- Not for you if: You need zoned paging, IP integration, or coverage beyond a single open space.
7. AtlasIED Commercial 70V PA System
Best for: High-noise industrial environments with professional-grade audio
AtlasIED manufactures commercial audio equipment carried by Pro Acoustics and other commercial AV distributors. Their 70V PA systems for commercial and industrial facilities include high-output horn speakers, rack-mount amplifiers, and zone paging controllers. AtlasIED systems are specified by AV integrators for manufacturing plants, distribution centers, and government facilities.
- Technology: 70V distributed audio
- Key specs: Professional-grade horn speakers, rack-mount amplifiers, zone controllers, UL-listed components
- Best for: High-noise environments (manufacturing, heavy logistics) where maximum SPL output and long-term reliability matter
- Pricing: Systems typically range from $1,500 to $5,000+ depending on zone count and speaker quantity (as of July 2026)
- Not for you if: You want a pre-packaged plug-and-play kit. AtlasIED systems are component-based and typically require professional design and installation.
8. Bogen Communications Nyquist IP Paging System
Best for: VoIP-native paging with zone scheduling
Bogen’s Nyquist platform is an IP-based paging and intercom system that runs entirely on the building’s data network. It supports SIP trunking for integration with VoIP phone systems, web-based zone management, scheduled bell tones and announcements, and priority override for emergency pages. The system is widely used in schools, hospitals, and warehouse communication setups.
- Technology: IP/PoE (network-based)
- Key specs: SIP-compatible, web-based zone management, scheduled automation, priority override, PoE-powered speakers
- Best for: Warehouses with an existing Ethernet network that want centralized paging control through a web browser
- Pricing: IP speaker endpoints start around $300 to $500 each; controller pricing varies by zone count (as of July 2026)
- Not for you if: You do not have a robust Ethernet infrastructure in the warehouse. IP paging depends on network reliability.
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How to Design a Warehouse PA System
Choosing the right equipment is only half the job. How you design and install the system determines whether every worker hears every page clearly.
Map your square footage and zones. Walk the facility and identify distinct areas that need independent volume control or separate paging: receiving docks, shipping lanes, cold storage, packing stations, break rooms, and office areas. Each area becomes a paging zone. A warehouse with 6 zones needs a multizone amplifier or an IP system with software-based zone grouping.
Account for ceiling height and racking. Horn speakers mounted at 20 feet or higher need more output power to reach floor level. In aisles between tall racking, sound reflects off metal shelves and creates dead spots. Spacing horn speakers at roughly two times the mounting height apart provides consistent coverage in open areas. Dense racking may require speakers at the end of each aisle.
Choose one-way paging or two-way intercom. Most warehouses start with one-way overhead paging (office pages the floor). If dock workers or forklift operators need to page back, add wall-mount intercom stations at key points. Two-way IP intercom stations let floor staff initiate pages to specific zones or ring the front office.
Size the amplifier correctly. Add up the wattage tap settings on every speaker in the system. Multiply by 1.25 to get the minimum amplifier rating. A system with 30 speakers tapped at 5 watts each (150W total) needs at least a 188W amplifier. Undersized amplifiers clip and distort during pages, making announcements unintelligible.
Plan your wire runs. For 70V systems, use 14 to 18 AWG CL2 or CL3 rated speaker cable for all in-wall and ceiling installations. Most 70V amplifiers operate as Class 2 circuits under NEC Article 725, which generally does not require conduit. Run speaker cable in J-hooks or cable tray separate from data and power cables. For IP systems, use standard Cat5e or Cat6 Ethernet cable with PoE switches rated for the speaker load.
IP vs 70V Analog: Which System Is Right for Your Warehouse?
The choice between IP and traditional 70V analog depends on your existing infrastructure, budget, and management needs.
Choose 70V analog when:
- Your warehouse already has speaker wire runs in place from an older system
- Budget per speaker is the priority (70V horn speakers cost $50 to $150 each vs $300 to $500+ for IP endpoints)
- You need a simple, reliable paging system with no network dependency
- The facility has limited or no Ethernet infrastructure on the warehouse floor
Choose IP/PoE when:
- You want to manage zones, schedules, and volume through a web browser or mobile app
- Integration with your VoIP phone system is a requirement
- You plan to expand gradually (IP systems scale by adding endpoints to the network)
- Your warehouse already has PoE-capable switches and Ethernet drops on the floor
Hybrid bridging is a third option. An IP paging gateway connects to an existing 70V amplifier, letting you add network-based management and VoIP integration to a legacy analog system without replacing every speaker. This approach works well for phased upgrades.
A full comparison of IP and analog audio infrastructure for commercial facilities is available in the ZYCOO IP vs Analog speakers guide.
Warehouse PA System Compliance and Safety
A warehouse PA system is not just a convenience. Federal and state regulations set specific requirements for employee communication and alarm systems.
OSHA 1910.165: Employee Alarm Systems. The Occupational Safety and Health Administration requires that employee alarm systems be capable of being perceived above ambient noise or light levels by all employees in the affected portions of the workplace. Non-supervised alarm systems must be tested at least every two months. If the PA system doubles as a fire alarm, OSHA requires that the fire alarm signal be distinctive and recognizable as a signal to evacuate.
OSHA 1910.95: Noise Exposure Limits. Warehouse PA systems must deliver intelligible audio without pushing worker noise exposure above OSHA’s permissible limits. The 8-hour permissible exposure limit is 90 dB, and the action level triggering a hearing conservation program is 85 dB. Proper speaker placement and zone control help maintain audibility without excessive volume.
ADA Accessibility. The Americans with Disabilities Act requires that communication systems in commercial facilities accommodate employees with hearing impairments. PA systems should include visual alert options such as strobe lights, LED message boards, or beacon lights in areas where hearing-impaired workers are present.
NEC Article 725: Low-Voltage Wiring. The National Electrical Code classifies 70V audio systems as Class 2 circuits. All speaker wiring for in-wall or ceiling installations requires CL2 or CL3 rated cable. While most Class 2 circuits do not require conduit, local building codes may add requirements. A licensed low-voltage contractor ensures the installation meets all applicable codes.
Frequently Asked Questions
What is a PA system in a warehouse?
A warehouse PA system is a commercial audio installation that uses 70-volt amplifiers, horn speakers, and paging microphones to broadcast voice announcements, emergency alerts, and scheduled tones across a warehouse floor. It differs from consumer or event PA systems in three ways: it uses constant-voltage (70V) distribution for long cable runs, it uses weather-rated speakers built for industrial dust and temperature extremes, and it supports multi-zone paging so different areas of the warehouse receive different messages.
How much does a warehouse PA system cost?
Basic 70V paging kits with 2 to 4 horn speakers start around $700 to $1,500. Mid-range systems covering 10,000 to 30,000 square feet with multizone amplifiers and 6 to 12 speakers typically cost $2,000 to $8,000 depending on speaker quality and brand. Enterprise-grade IP or wireless systems for large distribution centers (50,000+ sq ft) with mass notification, LED message boards, and VoIP integration can run $10,000 to $50,000+ depending on zone count and facility size. Professional installation typically adds to equipment cost for cable runs, speaker mounting, and system programming.
Do I need a 70V or IP speaker system for my warehouse?
Most warehouses under 50,000 square feet with basic paging needs are well served by a 70V analog system. It is simpler, cheaper per speaker, and does not depend on network uptime. Warehouses that need VoIP integration, web-based zone management, or gradual expansion should consider IP/PoE speakers. If you have an existing 70V system and want modern features, an IP paging gateway can bridge the two.
What are the OSHA requirements for warehouse PA systems?
OSHA standard 1910.165 requires that employee alarm systems be perceived above ambient noise levels by all employees in the affected portions of the workplace. If the PA system doubles as a fire alarm, the fire alarm tone must be distinctive and recognizable as a signal to evacuate. OSHA does not mandate PA systems specifically, but emergency action plans under 29 CFR 1910.38 require a method to alert employees, and a PA system is the most common solution in large facilities.
Can a warehouse PA system integrate with my phone system?
Yes. IP-based PA systems like Wahsega and Bogen Nyquist connect to VoIP phone platforms through SIP trunking. Any SIP-compatible desk phone, softphone, or mobile app on the network can initiate a page to any zone. Traditional 70V systems can also accept telephone input through an analog phone port on the amplifier or through an IP paging gateway that bridges the phone system to the analog PA infrastructure.
How many speakers do I need for my warehouse?
Speaker count depends on three factors: total square footage, ceiling height, and ambient noise level. As a general rule, horn speakers in an open warehouse with 20 to 30 foot ceilings should be spaced at roughly two times the mounting height. A 20,000 sq ft warehouse with 25-foot ceilings and moderate noise typically needs 6 to 10 horn speakers for consistent coverage. Dense racking, cold storage rooms, and loading dock areas may need additional speakers to fill dead zones. A professional site assessment is the most reliable way to determine the exact count.
Conclusion
The right warehouse PA system keeps every worker informed, safe, and on schedule. For most warehouses, a 70V distributed audio system with horn speakers and a multizone amplifier is the proven choice. Facilities that want VoIP integration and remote management should look at IP/PoE platforms like Wahsega or Bogen Nyquist. Wireless systems from Visiplex are the best option for large distribution centers where running speaker cable is not practical.
We built The Network Installers for facilities teams that need reliable commercial network cabling and low-voltage infrastructure nationwide. With 19+ years and 20,000+ locations served, we handle structured cabling, AV installation, and network infrastructure projects designed to align with OSHA, NEC, and ADA requirements.
Contact us for a free consultation on your warehouse communication infrastructure.
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Sources
- OSHA: Employee Alarm Systems (1910.165)
- OSHA: Occupational Noise Exposure (1910.95)
- Linortek: 70V Speaker Wiring Installation Guide
- ZYCOO: IP Speakers vs Analog Speakers Complete Guide
- Pro Acoustics: 70V Speaker System Wiring Diagram and Installation Guide
- Visiplex: Warehouse PA System
- ADA: Title II and III Regulations
- OSHA: Warehousing Standards and Enforcement
