Column Speaker Price in Bangladesh 2026

What Is a Column Speaker?

A column speaker is a vertically arranged loudspeaker system that uses multiple speaker drivers to provide controlled sound distribution, especially for speech and public-address applications.

Many column speakers are designed to provide relatively wide horizontal coverage while controlling vertical dispersion. This can help reduce unnecessary sound reflections from floors and ceilings in reverberant spaces such as prayer halls, auditoriums, stations, corridors, and large public areas.

Professional PA column speakers may support 70V/100V constant-voltage systems, low-impedance operation, or both depending on the model.

For example, TOA's TZ column series includes models with multiple vertically arranged drivers, selectable 70V/100V taps, and focused directivity.

How Does a Column Speaker Work?

A column speaker typically operates as part of a complete Analogue PA System:

Microphone / Audio Source → PA Amplifier → 70V/100V Speaker Line → Column Speaker Transformer → Speaker Array

Audio Source

Speech, announcements, sermons, lectures, or background audio enters through a microphone, mixer, media player, or another compatible source.

PA Amplifier

The PA amplifier processes and increases the audio signal before distributing it to the speaker network.

The amplifier must be selected according to the combined wattage load of all connected speakers.

70V/100V Distribution

Many commercial column speakers include a transformer for distributed PA installation.

This allows multiple compatible speakers to be connected across halls, corridors, buildings, or campuses while system load is calculated from the selected power taps.

Vertical Speaker Array

The defining feature of many column speakers is the arrangement of multiple drivers in a vertical line.

This design can help control sound dispersion and concentrate more acoustic energy toward the audience rather than unnecessarily directing it toward floors and ceilings.

Actual coverage depends on the individual model and manufacturer specifications.

Why Use a Column Speaker?

Column speakers are primarily selected when speech clarity and controlled coverage matter more than strong low-frequency music reproduction.

Better Speech Intelligibility

Column speakers are frequently used for:

• Sermons
• Public announcements
• Lectures
• Paging
• Speeches
• Institutional communication

Their directional characteristics can be particularly useful in reflective rooms.

Controlled Vertical Coverage

In halls with hard floors, high ceilings, glass, concrete, or tiles, excessive reflections can reduce speech clarity.

A suitable column speaker can help direct more sound toward listeners and less toward unwanted reflective surfaces.

Wide Audience Coverage

Many column designs provide relatively broad horizontal coverage, allowing listeners across a seating area to hear announcements more evenly.

Slim Installation

Column speakers usually have a narrow vertical enclosure, making them easier to integrate beside pillars, walls, stages, prayer halls, corridors, and other architectural surfaces.

Popular Column Speaker Prices at Expert Technologies BD

These are current listed prices and may change according to stock, import cost, exchange rate, and supplier pricing.

For larger systems, total project cost also depends on the amplifier, speaker quantity, cable length, mounting, zoning, and installation requirements.

70V/100V Column Speaker Explained

A 70V or 100V column speaker contains a line transformer that allows it to operate in a constant-voltage PA system.

This architecture is commonly used where multiple speakers must be distributed over a large area.

For example, the TOA TZ-206B supports:

• 100V: 20W / 10W / 5W / 2.5W
• 70V: 10W / 5W / 2.5W / 1.3W

TOA also offers higher-powered versions with 40W and 60W 100V taps.

Why Multiple Wattage Taps Matter

The selected tap determines how much power that speaker uses from the amplifier.

A speaker installed close to listeners may need a lower tap, while a speaker covering a larger or noisier area may require a higher setting.

This makes distributed PA systems more flexible.

100V Column Speaker vs 8Ω Column Speaker

Some column speakers support both 100V line operation and conventional low-impedance operation.

For example, the Ahuja SCM-15T available on your site supports a 100V transformer configuration as well as 8Ω operation.

How to Calculate Column Speaker Load

For a 70V/100V system:

Total Speaker Load = Sum of All Selected Speaker Wattage Taps

Example 1: Four 20W Column Speakers

4 × 20W = 80W total speaker load

The amplifier should provide adequate rated capacity above this connected load.

Example 2: Eight 10W Column Speakers

8 × 10W = 80W total load

Example 3: Mixed Tap Settings

Suppose a project uses:

• 4 speakers × 20W = 80W
• 4 speakers × 10W = 40W

Total connected load:

80W + 40W = 120W

Amplifier capacity should then be selected with suitable design headroom according to manufacturer recommendations and future expansion requirements.

How Many Column Speakers Can One Amplifier Support?

There is no fixed number.

It depends on:

• Amplifier rated output
• Speaker tap setting
• Number of speakers
• Speaker-line voltage
• Future expansion requirements

For example, ten speakers configured at 10W create:

10 × 10W = 100W

The amplifier must be compatible with the line voltage and provide adequate output capacity.

Simply dividing amplifier wattage by speaker wattage without considering headroom and manufacturer recommendations is not ideal professional system design.

Column Speaker Directivity and Speech Clarity

Directivity is one of the most important reasons to choose a column speaker.

Many column speakers arrange several smaller drivers vertically. This configuration can produce:

Wider horizontal dispersion
→ covers listeners across the room.

More controlled vertical dispersion
→ reduces unnecessary sound energy toward floors and ceilings.

This is particularly useful in rooms with significant reverberation.

TOA describes its TZ series as providing focused sound directivity, while its 20W TZ-206B is intended for medium venues such as houses of worship, gymnasiums, and auditoriums.

However, not every column speaker has the same coverage pattern. Always check the manufacturer's specifications when exact coverage is important.

Column Speaker for Mosques and Prayer Halls

Mosques can be challenging acoustic environments because large halls, tiles, walls, glass, and high ceilings may produce significant reverberation.

Column speakers can be suitable for:

• Khutbah
• Prayer speech reinforcement
• Religious lectures
• Indoor announcements
• Speech coverage across prayer halls

A properly aimed column speaker can help direct more sound toward worshippers instead of excessive ceiling or floor reflections.

For large mosques, several lower-level speakers placed strategically may provide clearer speech than relying on one excessively loud speaker.

For outdoor Azan or long-distance projection, a Horn Speaker may be more appropriate.

Column Speaker for Auditoriums and Conference Halls

Speech intelligibility is critical in auditoriums, lecture halls, conference spaces, and assembly areas.

A column speaker can help deliver:

• Presentations
• Lectures
• Speeches
• Public announcements
• General programme audio

Speaker positioning and aiming should be planned according to seating layout, wall reflections, stage position, and room dimensions.

Column Speaker for Schools and Universities

Educational institutions may use column speakers for:

• Assembly halls
• Lecture areas
• Indoor sports spaces
• Corridors
• Prayer areas
• Campus paging
• Public announcements

Models with adjustable wall brackets can be especially useful where the speaker needs to be aimed toward a specific listening area.

Column Speaker for Stations and Public Areas

Railway stations, transport terminals, shopping centres, waiting areas, and public facilities often require strong speech intelligibility.

Column speakers can provide controlled announcement coverage while maintaining a comparatively slim installation profile.

For very noisy outdoor locations or very long projection distances, other speaker types may be more appropriate.

Column Speaker for Factories and Industrial Facilities

Column speakers may be useful for administrative zones, corridors, indoor production areas, and other spaces where controlled voice coverage is needed.

However, extremely noisy industrial zones may require Horn Speakers or higher-output industrial loudspeakers.

The right choice should depend on measured background noise, required coverage, mounting location, and environmental conditions.

Indoor vs Outdoor Column Speaker

Not every column speaker marketed for PA use is suitable for direct outdoor exposure.

This distinction is important.

Indoor Column Speaker

Suitable for:

• Auditoriums
• Prayer halls
• Schools
• Offices
• Shopping centres
• Corridors

Weather-Resistant Column Speaker

Some models can tolerate protected or semi-outdoor conditions such as under roof eaves.

For example, the Ahuja SCM-15T uses a weather-resistant metal cabinet intended for indoor/outdoor applications under appropriate installation conditions.

Weatherproof / IP-Rated Column Speaker

For exposed outdoor environments, look for a manufacturer-specified IP rating.

Some TOA TZ weatherproof variants, for example, are rated IP65.

Weather-resistant and waterproof are not the same thing.

Do not install a standard indoor model in direct rain simply because the enclosure is metal.

Column Speaker vs Ceiling Speaker

Both are used in professional PA systems, but their applications differ.

Choose a Ceiling Speaker when you need evenly distributed overhead sound across many rooms or indoor areas.

Choose a column speaker when controlled forward coverage and speech intelligibility are more important.

Column Speaker vs Wall Mount Speaker

A conventional Wall Mount Speaker usually provides broader general-purpose sound and may offer better music reproduction depending on the model.

A column speaker is often more suitable where:

• Speech is the priority
• The room is reverberant
• Controlled dispersion matters
• A slim vertical enclosure is preferred

Wall speakers may be better for smaller rooms, offices, retail spaces, and mixed music/paging applications.

Column Speaker vs Horn Speaker

These two speaker types serve different purposes.

Column Speaker

Best for:

• Indoor halls
• Mosques
• Auditoriums
• Speech reinforcement
• Controlled audience coverage

Horn Speaker

Best for:

• Outdoor areas
• Factories
• Warehouses
• High-noise environments
• Long-distance voice announcements

A horn speaker generally prioritizes high-output speech projection, while a column speaker is often selected for clearer and more controlled indoor coverage.

Column Speaker vs Line Array Speaker

A PA column speaker should not automatically be confused with a professional concert line-array system.

Both may use multiple vertically arranged drivers, but their intended applications, power levels, signal processing, dispersion control, mounting systems, and acoustic design can be very different.

Commercial PA column speakers are typically designed for:

• Speech
• Paging
• Distributed sound
• Houses of worship
• Institutional audio

Large line-array systems are usually designed for high-output live sound and performance venues.

How to Choose the Right Column Speaker Wattage

10W–15W

Suitable for smaller, quieter spaces such as:

• Small prayer areas
• Offices
• Corridors
• Classrooms

20W–30W

Suitable for:

• Medium prayer halls
• Auditoriums
• Educational institutions
• Commercial areas

40W–60W

Can be used for larger spaces where greater output and coverage are required.

However, wattage should never be the only selection criterion.

Also check:

• Sensitivity
• Driver configuration
• Frequency response
• Directivity
• Speaker height
• Coverage distance
• Environmental rating

How to Position a Column Speaker

Correct installation can be as important as the speaker itself.

Mount Toward the Listening Area

A speaker should be aimed toward the audience rather than toward reflective ceilings or walls.

Avoid Excessive Height

Mounting too high and pointing straight across the room may reduce clarity for nearby listeners.

Use Adjustable Brackets When Available

Some column speakers include pan/tilt brackets that allow the installer to aim the speaker more precisely.

The TOA TZ-206B includes an adjustable wall-mounting arrangement for flexible installation.

Use Multiple Speakers Where Necessary

A very large hall may achieve better clarity with several correctly positioned speakers operating at moderate levels instead of one speaker operating excessively loud.

Factors That Affect Column Speaker Price in Bangladesh

Wattage

Higher-power models generally require larger or additional drivers and can cost more.

Number of Drivers

A larger column may contain more speaker units and provide greater output or different directivity characteristics.

70V/100V Transformer

Transformer-equipped models are designed for professional distributed PA systems.

Enclosure Material

Plastic, steel, aluminium, and other enclosure designs can affect durability, weight, weather protection, and cost.

Weather Protection

Outdoor-capable and IP-rated models may cost more than basic indoor models.

Brand

Ahuja, TOA, Bosch, CMX, ITC and other professional brands offer different specifications and price levels in Bangladesh. Current competitor listings show significant price variation across brands, power levels and enclosure types.

Mounting Hardware

Professional brackets and aiming systems can also influence product and installation cost.

Column Speaker Installation Cost in Bangladesh

The speaker price is only one part of the installed system cost.

A complete project may require:

• PA amplifier
• Speaker cable
• Conduit or trunking
• Wall brackets
• Mounting hardware
• Zone selector
• Volume controller
• Equipment rack
• Electrical protection
• Installation labour
• System testing
• Commissioning

A multi-floor building, large mosque, auditorium, or industrial facility may require a site survey before an accurate installation quotation can be prepared.

Common Column Speaker Buying Mistakes

Choosing Only by Wattage

Higher wattage does not guarantee better speech intelligibility.

Ignoring Directivity

A speaker's dispersion pattern affects how well it performs in a hall or reflective room.

Ignoring 70V/100V Compatibility

The speaker and amplifier must support compatible system voltage and connections.

Buying an Indoor Speaker for Exposed Outdoor Use

Always verify the manufacturer's environmental rating.

No Speaker-Load Calculation

Calculate the total wattage tap of every connected speaker before choosing the amplifier.

Incorrect Mounting Angle

Even a high-quality column speaker can perform poorly if it is aimed away from the audience.

Expecting Deep Bass

Many PA column speakers are optimized primarily for speech and general programme audio rather than bass-heavy music.

How to Choose the Right Column Speaker

Before buying a column speaker, check:

1. Application – mosque, auditorium, school, factory, station or commercial building.
2. Room Acoustics – reflective or acoustically treated.
3. Wattage – based on required output, not marketing alone.
4. 70V/100V Compatibility – match the PA amplifier.
5. Power Taps – useful for balancing speaker levels.
6. Sensitivity – higher sensitivity can provide more output from the same input power.
7. Frequency Response – especially important if music is required.
8. Directivity – check manufacturer coverage data where available.
9. Mounting System – fixed or adjustable bracket.
10. Indoor/Outdoor Rating – confirm weather or IP protection.
11. Total Speaker Load – calculate before amplifier selection.
12. Future Expansion – allow capacity for additional speakers where required.

Why Choose Expert Technologies BD for Column Speakers?

Expert Technologies BD supplies professional column speakers and PA system equipment for religious, educational, corporate, commercial, institutional, and industrial applications in Bangladesh.

Our support can include:

• Column speaker selection
• 70V/100V PA planning
• Amplifier matching
• Speaker-load calculation
• Speaker placement guidance
• Zone planning
• Project BOQ preparation
• Equipment supply
• Installation
• Testing and commissioning
• After-sales technical support

Rather than choosing a column speaker only by wattage or price, the system should be matched to the room acoustics, audience area, amplifier capacity, and intended application.

Frequently Asked Questions About Column Speakers

What is the column speaker price in Bangladesh?

Column speaker prices in Bangladesh vary according to brand, wattage, driver configuration, 70V/100V compatibility, enclosure type, and weather protection. Current products listed by Expert Technologies BD include entry-level and professional models at different price points.

What is a column speaker used for?

Column speakers are mainly used for clear speech, paging, sermons, lectures, and public announcements in halls, mosques, schools, stations, auditoriums, and commercial facilities.

Why are column speakers good for speech?

Many column speakers arrange several drivers vertically, helping control vertical dispersion and direct sound toward listeners. This can improve intelligibility in reflective spaces when the speaker is correctly selected and installed.

Is a column speaker good for a mosque?

Yes. Column speakers are commonly suitable for indoor mosque and prayer-hall speech reinforcement, especially where controlled coverage and speech clarity are important.

Can a column speaker be used outdoors?

Only if the specific model is suitable for the environment. Some are weather-resistant for protected outdoor areas, while others carry specific IP ratings for exposed conditions.

What is a 100V column speaker?

A 100V column speaker contains a line transformer that allows it to operate in a compatible 100V distributed PA system. Multiple speakers can then be connected while total load is calculated from their wattage taps.

How many column speakers can I connect to one amplifier?

It depends on the selected speaker taps and amplifier capacity. For example, six speakers operating at 20W each create a total connected load of 120W.

Is a 20W column speaker enough for a mosque?

It may be suitable for some small or medium prayer areas, but speaker quantity, sensitivity, room size, reverberation, mounting position, and required sound level must also be considered.

Column speaker or ceiling speaker—which is better?

Neither is universally better. Ceiling speakers are ideal for distributed overhead coverage, while column speakers are generally better suited to controlled speech projection in halls and similar spaces.

Column speaker or horn speaker—which should I choose?

Use column speakers for controlled speech coverage in halls and indoor public spaces. Horn speakers are generally better for outdoor, industrial, high-noise, or long-distance voice projection.

Can column speakers play music?

Yes, but many commercial column speakers are optimized primarily for speech and general programme audio. If high-quality music is the main requirement, compare frequency response and speaker design carefully.

What amplifier is required for column speakers?

Choose an amplifier that matches the speaker-line voltage and provides adequate output for the sum of all selected speaker wattage taps plus appropriate design headroom.

Buy Column Speakers in Bangladesh

When comparing Column Speaker prices in Bangladesh, do not select a product based only on wattage or price. Check the 70V/100V system compatibility, wattage taps, driver configuration, sensitivity, frequency response, directivity, mounting hardware, environmental rating, and amplifier requirements.

Expert Technologies BD provides professional column speakers for mosques, auditoriums, schools, universities, stations, factories, offices, shopping centres, and other commercial or institutional PA applications.

For larger projects, provide the room dimensions, ceiling height, audience area, speaker quantity, indoor/outdoor requirements, and existing PA amplifier information so that the speaker model, quantity, amplifier load, placement, and installation scope can be planned properly.