HL2450 Dual 4-Inch Passive Line Array Speaker

The HL2450 dual 4-inch line array speaker is a compact passive loudspeaker designed for speech reinforcement, music playback and professional sound coverage in small and medium-sized venues.

Featuring two 4-inch drivers, wide horizontal dispersion and an integrated adjustable rigging system, the HL2450 can be installed as a single loudspeaker or combined with multiple cabinets to create a curved line array.

It is suitable for churches, conference halls, restaurants, theaters, classrooms, hotels, wedding venues, corporate events and portable sound reinforcement systems.

For a broader overview of event audio products and system configurations, visit our Stage Sound System page.

Compact Line Array Design

Unlike a conventional point-source loudspeaker, the HL2450 is designed to work as part of a vertically arranged array.

Multiple cabinets can be connected together to provide:

• More consistent sound coverage

• Better speech intelligibility

• Wider audience-area coverage

• Flexible vertical dispersion

• Reduced sound-level differences between front and rear audience areas

• Scalable system capacity

The compact cabinet design makes the HL2450 particularly suitable for venues that require professional audio performance without using large-format concert speakers.

You can explore additional compact and professional array products in our Line Array Speakers category.

Adjustable Rigging System

The HL2450 includes dedicated hanging and connection hardware designed to simplify installation.

The angle between adjacent cabinets can be adjusted from 0° to 12°, with adjustment increments of 1°.

This allows the sound system designer or installer to create an appropriate array curvature according to:

• Venue depth

• Audience seating arrangement

• Installation height

• Required vertical coverage

• Number of loudspeaker cabinets

• Distance between the array and the audience

A smaller cabinet angle generally produces a flatter array for longer-distance projection, while a larger angle creates stronger downward coverage for closer audience areas.

For a more detailed explanation of line array selection and configuration, read A Guide to Selecting the Right Line Array Sound System for Your Event.

Wide Sound Coverage

The HL2450 provides a nominal dispersion angle of:

• Horizontal dispersion: 120°

• Vertical dispersion: 15°

The wide horizontal coverage helps distribute sound across broad audience areas, while the controlled vertical dispersion allows multiple cabinets to work together as an array.

This combination makes the HL2450 particularly useful for rooms where listeners are spread across a wide seating area but the available installation height is limited.

Clear Speech and Music Reproduction

With a frequency response of 130 Hz to 25 kHz, the HL2450 is designed primarily for vocal clarity, speech intelligibility and mid-to-high-frequency music reproduction.

Its 97 dB sensitivity and maximum sound pressure level of 118 dB allow the loudspeaker to provide clear, efficient sound reinforcement in appropriately sized venues.

Typical sound applications include:

• Speeches

• Conferences

• Vocal performances

• Background music

• Acoustic music

• Worship services

• Corporate presentations

• Educational programs

• Multimedia playback

For systems requiring broader supporting components such as processors, mixers, connectors and signal accessories, refer to our Pro Audio Elements category.

Recommended HL10BA Subwoofer Combination

The HL2450 is commonly used together with the HL10BA active subwoofer.

The HL10BA combines:

• One 10-inch low-frequency driver

• Built-in power amplifier

• DSP digital signal processing

• Signal distribution

• Frequency division

• System protection

• Output channels for subwoofer and full-range loudspeakers

The HL10BA provides low-frequency reinforcement that the compact HL2450 cabinet cannot reproduce independently.

Together, the HL2450 and HL10BA form a compact line array sound system suitable for speech, music and general-purpose venue reinforcement.

More bass loudspeaker options can be found in our Subwoofers category.

Integrated Amplifier and DSP System

The HL2450 is a passive loudspeaker and does not contain an internal amplifier.

When paired with the HL10BA, the system benefits from integrated amplification and DSP processing.

The input audio signal is processed through the following signal path:

Audio input → DSP processing → crossover distribution → power amplification → subwoofer and full-range speaker output

The DSP system helps manage:

• Frequency division

• Equalization

• Signal delay

• Speaker protection

• Output level

• System matching

• Low-frequency and full-range signal distribution

For separate amplification options and larger system configurations, visit our Power Amplifiers page.

Typical Applications

The HL2450 is suitable for a wide range of fixed-installation and portable applications.

Churches and Houses of Worship

Its compact appearance, clear vocal reproduction and flexible hanging angles make it suitable for sermons, worship music and community events.

Conference Halls

The wide horizontal dispersion helps distribute speech evenly across meeting rooms and multi-purpose conference spaces.

Restaurants and Hotels

The compact enclosure can be integrated into spaces where professional sound quality is required without installing visually dominant loudspeakers.

Small Theaters

Multiple HL2450 cabinets can be configured to improve speech and music coverage across stepped or distributed seating areas.

Multimedia Classrooms

The system can support lectures, video playback, presentations and educational activities.

Wedding and Corporate Events

Its lightweight structure and scalable configuration make it suitable for portable event sound systems that require fast installation and transportation.

Recording Studios and Rehearsal Spaces

The HL2450 can also be used for monitoring, playback and controlled music reinforcement in smaller indoor environments.

You can review additional complete event audio configurations in our Sound Solution Cases section.

Technical Specifications

HL2450 Line Array Speaker

HL10BA Active Subwoofer

Key Product Features

• Dual 4-inch compact line array cabinet

• Wide 120° horizontal dispersion

• Controlled 15° vertical dispersion

• 0°–12° adjustable rigging angles

• 1° angle adjustment increments

• Lightweight and portable design

• Suitable for single-cabinet or multi-cabinet configurations

• Clear speech and vocal reproduction

• Compatible with HL10BA active subwoofer

• Integrated DSP and amplification available through the subwoofer

• Suitable for fixed installation and mobile event use

• Designed for small and medium-sized sound reinforcement applications

Why Choose the HL2450?

The HL2450 is designed for projects where compact dimensions, installation flexibility and vocal clarity are more important than extremely high output.

Compared with large-format line array systems, it offers:

• Lower transportation volume

• Easier manual handling

• Faster installation

• Reduced visual impact

• Flexible cabinet quantity

• Practical coverage for smaller venues

• Simpler integration with compact subwoofer systems

For buyers who are uncertain whether a compact line array, PA speaker or conventional point-source system is more suitable, our Stage Sound Product Center provides access to the main professional audio product categories.

Understanding the Curved Line Array Shape

When several HL2450 cabinets are connected at different angles, the complete array may form a curved or J-shaped profile.

This is not only a visual arrangement. The curvature helps direct sound toward different audience areas:

• Upper cabinets can project toward distant listeners

• Middle cabinets can cover the central audience area

• Lower cabinets can direct sound toward listeners close to the stage

You can learn more about this principle in Why Are the Speakers Hanging on Both Sides of the Stage at Large Concerts Shaped Like a J?.

Sound System Design Considerations

The final number of HL2450 cabinets and HL10BA subwoofers should be determined according to the actual project.

Important selection factors include:

• Venue dimensions

• Indoor or outdoor use

• Audience capacity

• Required sound pressure level

• Speech or music application

• Installation height

• Coverage distance

• Subwoofer quantity

• Amplifier capacity

• DSP configuration

• Local noise restrictions

For venues located near residential areas or other noise-sensitive environments, read 5 Essential Noise Mitigation Methods for Your Music Venue.

Product Inquiry Information

To help us recommend a suitable HL2450 system configuration, please provide:

• Venue length, width and height

• Indoor or outdoor application

• Audience capacity

• Event type

• Speech or music use

• Required number of loudspeaker arrays

• Preferred flying or ground-stacked installation

• Required subwoofer quantity

• Available electrical power

• Installation drawings or venue photographs

• Project location

• Required delivery date

Our team can then recommend a suitable combination of line array speakers, subwoofers, amplification, DSP processing and related sound equipment.