ZEH designs and manufactures custom speaker drivers across different frequency ranges, including full-range speakers, midrange speakers, midbass speakers, woofer drivers and tweeter drivers. We customize driver size, frequency response, power rating, impedance, structure and enclosure matching according to your audio system requirements.
With over 30,000 proven configurations, ZEH provides one-stop OEM/ODM support covering driver selection, acoustic tuning, sample evaluation, testing and volume production—helping audio brands and equipment manufacturers build balanced, reliable and production-ready speaker systems.
Speaker drivers are designed to reproduce different parts of the audio spectrum. Their usable frequency range depends on the diaphragm size and material, voice coil, magnetic circuit, suspension, enclosure, crossover design and intended application.
ZEH develops and manufactures full-range, midrange, midbass, woofer and tweeter drivers for OEM/ODM audio products. We customize driver size, impedance, power handling, sensitivity, frequency response, mounting structure and acoustic performance around the customer’s enclosure, amplifier, crossover and installation requirements.
| Speaker Type | Frequency Focus | Key Characteristics | Typical Use |
|---|---|---|---|
| Full-Range Speakers | Broad range through a single driver | Compact, simple design | Compact equipment, voice devices, portable electronics, space-limited applications |
| Midrange Speakers | Middle frequencies | Handles vocals, dialogue, many instruments; needs controlled crossover matching | Two-way and three-way systems requiring clarity |
| Midbass Speakers | Upper-bass / lower-midrange | Adds body, impact, warmth; smooths transition between woofer and midrange/tweeter | Multi-driver systems needing a bridge frequency range |
| Woofer Drivers | Low frequencies | Greater diaphragm excursion, higher mechanical loads; must match enclosure volume, amp power, bass extension | Bass reproduction in speaker systems |
| Tweeter Drivers | High frequencies | Performance depends on diaphragm structure, mounting position, crossover point, sensitivity matching, dispersion | High-frequency detail and clarity |
ZEHSMAUDIO can adapt an existing speaker platform or develop a modified structure based on your installation space, sound target, electronics, enclosure and production requirements.
We review your housing dimensions and mounting structure before selecting the frame and magnetic circuit.
Round, oval, rectangular and low-profile frames can be adapted to internal ribs, PCB positions and assembly methods.
Speaker parameters are evaluated together with the amplifier, enclosure, listening distance and required sound performance.
Diaphragm, surround and magnet materials are selected according to the target sound, environment and cost requirements.
The project can include the enclosure, grille, wiring, connector, sealing components and amplifier matching.
From compact full-range speakers to dedicated tweeters, midrange, midbass and woofer drivers, ZEH develops and manufactures speaker solutions across the complete frequency range. Whether your product requires a single driver or a multi-way audio system, we can match the speaker configuration to your enclosure, electronics, sound target and production requirements.
Different products require different frequency coverage. A compact voice device may need one full-range speaker, while automotive, home audio or professional systems may require multiple dedicated drivers.
ZEH provides:
Customers can source one driver type or coordinate several frequency sections through the same manufacturer.
We do not begin with a fixed speaker model. Our engineers review the product application, available installation space, enclosure volume, amplifier output, required sound pressure and target frequency response.
Based on these requirements, ZEH can recommend:
This helps avoid using an unnecessarily complex system or selecting a driver that cannot meet the finished product’s acoustic requirements.
In a multi-driver system, every speaker must work correctly with the other frequency sections. Incorrect sensitivity, impedance, crossover points or phase can create frequency gaps, excessive overlap and an unbalanced sound character.
ZEH evaluates the speaker drivers together with the:
This system-level approach helps create smoother frequency transitions and more predictable performance in the finished product.
ZEH can adapt existing speaker platforms or develop modified structures according to the product’s mechanical, electrical, acoustic and environmental requirements.
Custom options include:
This allows one manufacturing partner to support different models, sizes and performance levels across your product line.
A speaker driver’s frequency range is the span of frequencies it can reproduce effectively. The usable range depends on the diaphragm size and material, voice coil, magnetic circuit, suspension, enclosure, mounting structure and crossover design.
The published frequency response should therefore be evaluated together with the required sound-pressure level, distortion limit and installation conditions—not as an isolated number.
Each driver type is designed to handle a different part of the audio spectrum:
The actual operating range varies according to the driver structure, enclosure and crossover settings.
Generally, a larger diaphragm can move more air and is better suited to low-frequency reproduction. However, driver diameter alone does not determine bass performance.
Resonant frequency, diaphragm mass, suspension compliance, magnetic strength, excursion capability and enclosure volume must also be considered. A larger speaker will not automatically produce deeper or better-controlled bass if these parameters are not properly matched.
A full-range speaker can reproduce a broad part of the audio spectrum without requiring several separate drivers. This makes it suitable for compact devices, voice equipment and products with limited installation space.
However, a single driver normally cannot provide the same bass extension, high-frequency dispersion and maximum output as a properly matched multi-driver system. The correct choice depends on the product size, listening distance, sound target and cost requirements.
Start with the product’s primary audio requirement:
Final selection should also consider the enclosure, amplifier power, impedance, crossover points, mounting depth and target SPL.
Frequency response describes how a speaker behaves across a measured range of frequencies. The crossover range defines where the driver is intended to begin or stop operating within the complete audio system.
A driver may produce sound outside its recommended operating range, but that does not mean it will maintain the required output, distortion or reliability there. The crossover should be selected within the driver’s stable usable range.
Crossover points should be determined from the measured frequency response, impedance curve, resonant frequency, sensitivity, distortion and power-handling capability of each driver.
The acoustic response inside the actual enclosure must also be considered. Incorrect crossover settings can cause frequency gaps, excessive overlap, phase problems, harsh treble or weak vocals. ZEH can evaluate the drivers, crossover components, enclosure and amplifier as one system.
The enclosure volume, acoustic chamber, sealing, sound outlet, grille opening and internal structure can all change the finished frequency response.
A driver that performs correctly on a standard test baffle may behave differently after installation in the customer’s product. For OEM/ODM projects, ZEH recommends evaluating engineering samples inside the actual or representative enclosure before volume production.
Yes. ZEH can adjust the speaker structure and electroacoustic parameters according to the customer’s target frequency range and product requirements.
Custom development may include changes to:
Final performance must be confirmed through sample measurement and system-level acoustic testing.
To recommend a suitable custom speaker driver, please provide as much of the following information as possible:
If complete acoustic specifications are not available, ZEH can begin with the product structure, existing sample and required sound performance.
