What is the product PA Solutions also known as?

PA System, Public Address System, Sound System Solutions, Audio PA Solutions, Amplification System, Voice Announcement System, Event PA Equipment, Wireless PA Solutions, Portable PA Systems, Public Announcement Device, Audio Broadcasting System, Conference PA Solutions, School PA System, PA Speakers, Emergency PA System

What is a public address (PA) system?

A public address (PA) system is an electronic system that amplifies and distributes audio signals to a large audience. PA systems are used in a variety of settings, including schools, stadiums, airports, theaters, and churches.

What are the different types of PA systems?

There are two main types of PA systems: portable and fixed installation. Portable PA systems are designed to be easy to transport and set up, and are typically used for smaller events and gatherings. Fixed installation PA systems are designed for permanent installation in a specific location, and are typically used for larger venues and applications.

What components are needed for a PA system?

The basic components of a PA system include: Input devices: Microphones, wireless microphones, music players, and other devices that generate audio signals. Mixer: A mixer combines the audio signals from multiple input devices and controls their volume and other parameters. Amplifier: An amplifier increases the power of the audio signals from the mixer so that they can be heard by a large audience. Speakers: Speakers convert the amplified audio signals back into sound waves.

How do I choose the right PA system for my needs?

When choosing a PA system, it is important to consider the following factors: The size of the venue: The size of the venue will determine the power output and number of speakers needed. The type of event or application: The type of event or application will determine the features needed, such as wireless microphones, multiple input channels, and portability. Your budget: PA systems range in price from a few hundred dollars to several thousand dollars.

How do I set up a PA system?

The specific steps involved in setting up a PA system will vary depending on the type of system you have. However, there are some general guidelines that can be followed: Place the speakers in strategic locations so that the sound is evenly distributed throughout the venue. Connect the input devices to the mixer. Connect the mixer to the amplifier. Connect the amplifier to the speakers. Set the volume and other parameters on the mixer and amplifier. Test the system to make sure that it is working properly.

How do I maintain a PA system?

To maintain a PA system, it is important to inspect all of the components regularly for signs of damage or wear. It is also important to clean the speakers and other components regularly to remove dust and dirt.

How do I troubleshoot a PA system?

If you are having problems with your PA system, check that all components are properly connected, verify volume and other settings on the mixer and amplifier, try using a different input device such as a different microphone, and contact us for support if problems persist.

What is the product Wireless Megaphone also known as?

Portable Loudspeaker, Handheld Megaphone, Public Address System, PA System, Voice Amplifier, Wireless Speaker Megaphone, Battery Operated Megaphone, Outdoor Megaphone, Emergency Megaphone, Amplified Speaker, Handheld PA System, Wireless Loud Hailer, Megaphone with Microphone, Portable PA System, Voice Projection Device

A megaphone is a portable and hand-held communication device that amplifies sound, allowing the user's voice or other audio content to be projected over longer distances.

How does a megaphone work?

A megaphone works by capturing sound waves through a microphone and then amplifying and projecting those sound waves through a horn or speaker, making the sound louder and more audible.

Where are megaphones commonly used?

Megaphones are commonly used in various settings such as public events, rallies, sports games, emergency situations, crowd control, and communication in noisy environments.

What are the benefits of using a megaphone?

Using a megaphone offers benefits including effective communication to large audiences, enhancing crowd management, making announcements in outdoor settings, and providing clarity in noisy surroundings.

What types of power sources do megaphones use?

Megaphones can use various power sources, including batteries (both disposable and rechargeable) or in some cases, they can be powered by an external power source or AC adapter.

Can megaphones play recorded messages or music?

Yes, many modern megaphones have features that allow them to play recorded messages, pre-recorded sounds, or even music through auxiliary inputs or built-in media players.

Are megaphones weather-resistant?

Some megaphone models are designed to be weather-resistant, allowing them to be used in outdoor environments without being damaged by rain or light moisture.

How far is the effective range of a megaphone?

The effective range of a megaphone varies depending on its power and design. Basic models may have an effective range of around 100-300 feet, while more powerful models can reach up to 1000 feet or more.

Can megaphones be used in emergency situations?

Yes, megaphones are often used in emergency situations to convey important instructions or information to the public during evacuations, accidents, or other urgent events.

Are megaphones easy to operate?

Yes, megaphones are generally easy to operate. They usually have simple controls for adjusting volume, turning the device on/off, and using additional features if available.

Can megaphones be used for indoor events?

Yes, megaphones can be used for indoor events, but their usage might be more common and effective in larger indoor spaces or situations where voice projection is needed.

Do megaphones come with adjustable volume settings?

Yes, most megaphones come with adjustable volume settings, allowing users to control the loudness of the projected sound.

Can megaphones be used by children?

Yes, there are lightweight and smaller megaphone models designed for use by children. However, adult supervision might be necessary, especially for younger children.

Can megaphones be used to communicate with individuals who are far away?

Yes, megaphones are specifically designed to amplify sound and project it over distances, making them effective for communicating with individuals who are far away.

Can I connect external devices like microphones or MP3 players to a megaphone?

Yes, many megaphones have built-in ports or auxiliary inputs that allow you to connect external devices like microphones, MP3 players, or smartphones to enhance their functionality.

What is the warranty period for megaphones?

The warranty period for megaphones can vary depending on the manufacturer and model. It's advisable to review the product specifications or contact the manufacturer for warranty information.

What is a wireless megaphone, and what other terms are used for these devices in industry?

A wireless megaphone—also termed a loud hailer, portable PA speaker, bullhorn, or handheld voice amplifier—is a battery-powered acoustic projection unit designed to amplify live speech or pre-recorded audio over long distances.

How do I choose the right wireless megaphone based on wattage, range, and operational environment?

Select a megaphone by matching power output (16W–50W RMS) to your required voice range (200m to 1000m), selecting the appropriate amplifier type (Class-D for long battery life), and choosing suitable enclosure protection (standard ABS plastic vs. ERTL-approved flameproof cast aluminum).

Which IS, IEC, and ERTL compliance standards apply to industrial and flameproof megaphones in India?

Industrial megaphones must comply with IS/IEC 60079-1:2007 (Flameproof Ex d enclosures for Gas Groups IIA, IIB, IIC), IS/IEC 60079-0 (General requirements for explosive atmospheres), IS/IEC 60529 (IP66 ingress protection), and hold ERTL/CIMFR testing certification.

Which industrial sectors and applications rely on wireless megaphones and portable PA systems?

Wireless megaphones are used in oil & gas refineries, chemical manufacturing, construction sites, emergency response, traffic management, sports training, railway stations, and corporate facility evacuations.

How should portable and vehicle-mounted wireless megaphones be installed, powered, and operated?

Handheld megaphones require inserting dry cells or charged Li-ion battery packs and adjusting mic gain; vehicle models bolt onto roof racks and connect to 12V DC power; flameproof battery charging must strictly occur in non-hazardous areas.

What maintenance routines and battery practices maximize the lifespan of industrial megaphones?

Maintain megaphones by cleaning acoustic horn flares, removing dry cells when idle, inspecting IP-sealing rubber gaskets, avoiding deep discharge of Li-ion batteries, and storing equipment in dry, temperature-controlled spaces.

What are the B2B procurement details, GST rates, HSN codes, and lead times for wireless megaphones?

Wireless megaphones carry HSN code 85181000 or 85182200 with an 18% GST rate, feature a 1-unit minimum order quantity, 12-month standard warranty, and dispatch within 2 to 5 working days across India.

How do Class-D amplifier megaphones compare with traditional analog megaphones and portable PA systems?

Class-D megaphones offer up to 90% power efficiency and 15-hour battery life compared to 4 hours on traditional analog models; portable PA systems provide higher wattage and extra mic inputs but are heavier.

Product Information

Attribute

Value

Audible-Range

Upto 400 Meter

Watt

25 Watt

Voltage

12 V

Battery

Rechargeable

Media Playback Features

USB / SD / Aux / Record

Amplifier Class

Class-D Digital

Ahuja AM 25DPM 25W portable PA megaphone with shoulder strap and microphone

Ahuja AM 25DPM PA Megaphone

KTI1400400AM25M

Product Description

The Ahuja AM-25DPM is a high-efficiency 25W portable public address megaphone engineered for clear, long-range acoustic projection, emergency alerting, and crowd management across industrial plants, security zones, and outdoor facilities.

Brand / Manufacturer: Ahuja Radios
Model: AM-25DPM
Power Output: 20W Rated / 25W Maximum
Acoustic Range: Approximately 400 meters for voice, up to 500 meters for siren (in quiet surroundings)
Amplifier Type: Class-D digital amplifier for optimized power consumption and extended battery runtime
Voice & Playback Features: Detachable unidirectional microphone with volume control, built-in message recording/playback (up to 240 seconds / 4 minutes)
Media Playback: MP3 playback supported via integrated USB port, SD/MMC card slot, and 3.5mm Aux input
Signaling Function: Integrated high-output emergency siren
Power Supply: 10 × UM-3 (AA) pencil cells / 12–14V DC external car battery connection / optional 11.1V Li-ion battery pack
Enclosure Material: Lightweight, heavy-duty ABS resin body
Mounting & Carrying: Handheld grip and adjustable shoulder sling configuration
Dimensions: Horn Diameter Ø230 mm × Overall Length 382 mm
Weight: 1.40 kg (approx. 1.20 kg without battery cells)

KTI1400400AM25M

Price

₹ 4,357.80 excl. GST

+ 18.00% Tax + Freight Charge

If you are an existing KTI Customer, Sign In to view your special price

Product Details
Available Brands	Ahuja
Unit	Numbers
HSN Code	85182900
Weight	1.4 kg
Dimension	L 38.2 x W 23 x H 23 cm cm ft in m
Warranty	12 Months No-Onsite Warranty
Resources	Download Datasheet Download Specification
Tags/categories	Automation >> PA Solutions >> Wireless Megaphones

Usually dispatched within 7 days

Interface Type	Physical Connector	Compatible Devices and Signal Levels
Auxiliary Line Input	3.5 mm Aux Jack	Mobile phones, portable media players, tablets, and analog line-out equipment carrying MP3 or pre-recorded program material.
Handheld Microphone	Coiled stretch cord / Clip	Dedicated Ahuja unidirectional microphone assembly featuring built-in volume adjustment and playback/record control switches.
External DC Socket	Standard DC Barrel Socket	Regulated 12V to 14V DC power adapters, vehicle cigarette lighter cables, and portable external 12V industrial battery packs.

Interface Type

Physical Connector

Compatible Devices and Signal Levels

Auxiliary Line Input

3.5 mm Aux Jack

Mobile phones, portable media players, tablets, and analog line-out equipment carrying MP3 or pre-recorded program material.

Handheld Microphone

Coiled stretch cord / Clip

Dedicated Ahuja unidirectional microphone assembly featuring built-in volume adjustment and playback/record control switches.

External DC Socket

Standard DC Barrel Socket

Regulated 12V to 14V DC power adapters, vehicle cigarette lighter cables, and portable external 12V industrial battery packs.

Observed Symptom	Probable Root Cause	Corrective Action
No sound / LED inactive	Depleted or misaligned 10 x AA cells; disconnected DC plug	Verify polarity of all 10 AA cells; verify 12V–14V DC source connection.
High-pitched feedback howling	Microphone pointed directly toward the Ø230 mm horn flare	Direct microphone away from horn opening; lower microphone volume level.
Distorted voice or weak siren range	Voltage drop below operational limits of Class-D amplifier	Replace AA cells with fresh alkaline batteries or switch to 11.1V Li-ion / 12V DC.
MP3 media will not play	Unsupported audio codec or dirty USB/SD interface slot	Ensure standard MP3 file formatting; inspect and clean physical ports.
Intermittent audio cutout	Stretched or damaged coiled microphone cord connection	Inspect coiled cord strain reliefs and hanging clip for physical stress or loose wiring.

Observed Symptom

Probable Root Cause

Corrective Action

No sound / LED inactive

Depleted or misaligned 10 x AA cells; disconnected DC plug

Verify polarity of all 10 AA cells; verify 12V–14V DC source connection.

High-pitched feedback howling

Microphone pointed directly toward the Ø230 mm horn flare

Direct microphone away from horn opening; lower microphone volume level.

Distorted voice or weak siren range

Voltage drop below operational limits of Class-D amplifier

Replace AA cells with fresh alkaline batteries or switch to 11.1V Li-ion / 12V DC.

MP3 media will not play

Unsupported audio codec or dirty USB/SD interface slot

Ensure standard MP3 file formatting; inspect and clean physical ports.

Intermittent audio cutout

Stretched or damaged coiled microphone cord connection

Inspect coiled cord strain reliefs and hanging clip for physical stress or loose wiring.

Operational Domain	Key Megaphone Feature Used	Primary Projection Range	Recommended Power Source
Disaster Management & Fire Response	Built-in Emergency Siren & 240s Voice Recording Loop	Up to 500 m (Siren) / 400 m (Voice)	11.1V Li-ion Battery or 10 x AA Alkaline Cells
Construction & Industrial Coordination	Shoulder Sling, Coiled Mic Cord & Class-D Amp	Up to 400 m (Voice Projection)	10 x UM-3 (AA) Alkaline Cells
Public Safety & Event Management	USB/SD MP3 Media Playback & 3.5 mm Aux Input	Up to 400 m (Acoustic Range)	10 x UM-3 (AA) Alkaline Cells
Mobile Utility & Field Publicity	12V–14V DC Input Socket & 4-Min Message Memory	Up to 400 m (Continuous Loop)	12V–14V DC Vehicular Battery

Operational Domain

Key Megaphone Feature Used

Primary Projection Range

Recommended Power Source

Disaster Management & Fire Response

Built-in Emergency Siren & 240s Voice Recording Loop

Up to 500 m (Siren) / 400 m (Voice)

11.1V Li-ion Battery or 10 x AA Alkaline Cells

Construction & Industrial Coordination

Shoulder Sling, Coiled Mic Cord & Class-D Amp

Up to 400 m (Voice Projection)

10 x UM-3 (AA) Alkaline Cells

Public Safety & Event Management

USB/SD MP3 Media Playback & 3.5 mm Aux Input

Up to 400 m (Acoustic Range)

10 x UM-3 (AA) Alkaline Cells

Mobile Utility & Field Publicity

12V–14V DC Input Socket & 4-Min Message Memory

Up to 400 m (Continuous Loop)

12V–14V DC Vehicular Battery

	Current Product Ahuja AM 25DPM PA Megaphone	Megaphone MP89U Make Mega	Megaphone AM 25DP Ahuja	+ Add product to compare
SKU	KTI1400400AM25M	KTI14004003MP89	KTI14004005AM25	—
Brand	Ahuja	Mega	Ahuja	—
Price (excl. GST)	₹ 4,357.80 excl. GST	Ask for price	₹ 4,435.60 excl. GST	—
GST %	18.00%		18.00%	—
Amplifier Class	Class-D Digital	Standard Analog PA	Class-D Digital	—
Audible-Range	Upto 400 Meter	Upto 400 Meter	Upto 400 Meter	—
Battery	Rechargeable	Rechargeable	Rechargeable	—
Media Playback Features	USB / SD / Aux / Record	Aux / External Speaker	USB / SD / Aux / Record	—
Voltage	12 V	12 V	12 V	—
Watt	25 Watt	Upto 20 Watt	Upto 20 Watt	—
Certifications	—	—	—	—
Availability	Made to Order	Made to Order	Made to Order	—
		Ask for price		—

Current Product

Ahuja AM 25DPM PA Megaphone

Megaphone MP89U Make Mega

Megaphone AM 25DP Ahuja

+ Add product to compare

SKU

KTI1400400AM25M

KTI14004003MP89

KTI14004005AM25

—

Brand

Ahuja

Mega

Ahuja

—

Price (excl. GST)

₹ 4,357.80 excl. GST

Ask for price

₹ 4,435.60 excl. GST

—

GST %

18.00%

—

Amplifier Class

Class-D Digital

Standard Analog PA

Class-D Digital

—

Audible-Range

Upto 400 Meter

—

Battery

Rechargeable

—

Media Playback Features

USB / SD / Aux / Record

Aux / External Speaker

USB / SD / Aux / Record

—

Voltage

12 V

—

Watt

25 Watt

Upto 20 Watt

—

Certifications

—

Availability

Made to Order

—

Ask for price

—

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Ahuja AM 25DPM PA Megaphone

Product Description

Ahuja AM 25DPM PA Megaphone

KTI1400400AM25M

About this product .

Product Information .

Power, Media, and System Compatibility

Power Supply and Electrical Compatibility

Digital Media and Storage Card Interfacing

External Audio Source and Signal Compatibility

Deployment and Operational Integration

Ahuja AM-25DPM Megaphone Diagnostic and Fault Resolution Guide

1. Power Supply and Voltage Drop Diagnostics

2. Acoustic Feedback and Audio Quality Rectification

3. Digital Media and 240-Second Voice Recording Issues

4. Systematic Fault Resolution Matrix

5. Preventative Field Maintenance and Storage

Industrial, Emergency, and Field Application Scenarios for Ahuja AM-25DPM

Fire Fighting, Disaster Management, and Emergency Evacuation

Construction and Infrastructure Site Operational Direction

Crowd Management, Security, and Event Control

Field Publicity, Electioneering, and Mobile Utility

Related Products .

Compare with similar products .

Category FAQ .

Q. What is the product PA Solutions also known as?

Q. What is a public address (PA) system?

Q. What are the different types of PA systems?

Q. What components are needed for a PA system?

Q. How do I choose the right PA system for my needs?

Q. How do I set up a PA system?

Q. How do I maintain a PA system?

Q. How do I troubleshoot a PA system?

Q. What is the product Wireless Megaphone also known as?

Q. What is a megaphone?

Q. How does a megaphone work?

Q. Where are megaphones commonly used?

Q. What are the benefits of using a megaphone?

Q. What types of power sources do megaphones use?

Q. Can megaphones play recorded messages or music?

Q. Are megaphones weather-resistant?

Q. How far is the effective range of a megaphone?

Q. Can megaphones be used in emergency situations?

Q. Are megaphones easy to operate?

Q. Can megaphones be used for indoor events?

Q. Do megaphones come with adjustable volume settings?

Q. Can megaphones be used by children?

Q. Can megaphones be used to communicate with individuals who are far away?

Q. Can I connect external devices like microphones or MP3 players to a megaphone?

Q. What is the warranty period for megaphones?

Q. What is a wireless megaphone, and what other terms are used for these devices in industry?

Q. How do I choose the right wireless megaphone based on wattage, range, and operational environment?

Q. Which IS, IEC, and ERTL compliance standards apply to industrial and flameproof megaphones in India?

Q. Which industrial sectors and applications rely on wireless megaphones and portable PA systems?

Q. How should portable and vehicle-mounted wireless megaphones be installed, powered, and operated?

Q. What maintenance routines and battery practices maximize the lifespan of industrial megaphones?

Q. What are the B2B procurement details, GST rates, HSN codes, and lead times for wireless megaphones?

Q. How do Class-D amplifier megaphones compare with traditional analog megaphones and portable PA systems?