ZEH develops and manufactures woofer speaker drivers for OEM and ODM projects. We match the driver size, structure, impedance, power and low-frequency response to your enclosure, amplifier, crossover and adjoining speaker drivers—not to a fixed off-the-shelf specification.
A woofer speaker driver is designed to reproduce the low-frequency section of an audio system, adding depth, body and impact to music, sound effects and other audio content.
It is commonly used in two-way, three-way and multi-driver speaker systems. Depending on the product design, the woofer may operate together with a tweeter, midrange driver or both.
Woofer performance cannot be determined by diameter or power rating alone. Cone material, suspension, voice coil, magnet, excursion capability, enclosure volume, port design, amplifier output and crossover settings all influence the final low-frequency result.
The woofer drivers below represent existing diameter, frame, cone, magnet, impedance and power platforms.
They are starting points for OEM and ODM development rather than fixed retail products. Each platform can be evaluated or modified around your enclosure, amplifier, crossover, adjoining speaker drivers, acoustic target and production requirements.
ZEH can supply the individual woofer driver or coordinate related components such as the enclosure, grille, wire harness, connector, crossover and amplifier board.
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.
A dedicated woofer gives an audio system the low-frequency depth, weight and impact that a full-range or midbass driver cannot reproduce efficiently. ZEH develops custom woofer drivers around the enclosure, amplifier, crossover and target bass performance of each OEM audio product.
Full-range and midbass drivers can reproduce vocals and upper-bass content, but they may lack the diaphragm area and excursion required for deeper bass.
ZEH selects the appropriate woofer diameter, cone structure, magnetic circuit and suspension system to achieve the required low-frequency extension and sound pressure. The woofer can be developed for automotive audio, home speakers, karaoke systems, professional loudspeakers and other bass-dependent products.
A woofer cannot be selected by diameter and power rating alone. Its free-air resonance, compliance and total Q must match the enclosure volume and whether the cabinet uses a sealed or ported design.
ZEH evaluates Fs, Vas, Qts, enclosure volume, port tuning and crossover frequency together. This helps reduce weak bass, excessive resonance and poor low-frequency control after the woofer is installed in the finished cabinet.
Woofer drivers operate with greater diaphragm movement and higher mechanical loads than midrange speakers. An unsuitable voice coil, suspension or magnetic circuit can cause overheating, distortion, mechanical noise or damage under sustained high-power operation.
ZEH coordinates voice coil diameter, magnet size, surround, spider and cone structure according to the required power and excursion. Engineering samples can be tested under rated and extended operating conditions before production.
For OEM audio products, every woofer must reproduce a similar bass response—not only the approved sample. Variations in moving mass, suspension stiffness, voice coil position or magnetic strength can change resonance and sensitivity.
ZEH controls component assembly and key electroacoustic parameters through automated and semi-automated manufacturing, acoustic testing and pilot-production validation. This supports consistent performance from engineering samples through repeat volume orders.
A woofer is a speaker driver developed mainly to reproduce low-frequency sound.
It is commonly used together with a tweeter, midrange driver or high-frequency unit in a two-way, three-way or multi-driver audio system.
A midbass driver focuses more on upper-bass impact and lower-midrange reproduction.
A woofer generally places greater emphasis on lower-frequency output. The exact difference depends on the driver design, enclosure and intended operating range.
A woofer handles the main low-frequency section of a speaker system and may extend into the lower-midrange region.
A subwoofer is more specifically developed for deeper bass and is commonly used with a dedicated enclosure, amplifier channel or low-pass filter.
Yes. A woofer can be combined with a tweeter or high-frequency driver in a two-way system.
The two drivers must be matched according to their usable frequency ranges, sensitivities, impedance and crossover requirements.
Yes. ZEH can evaluate the outside diameter, mounting depth, frame, hole positions, magnet dimensions and installation structure according to your product housing.
Customization feasibility depends on the selected platform, tooling requirements and expected production volume.
Yes. The nominal impedance, rated power, sensitivity, resonant frequency and frequency response can be evaluated according to the amplifier, enclosure and target sound.
The final parameters must be confirmed through sample development and testing.
Yes. Please provide the enclosure dimensions, internal volume, sealed or ported structure, grille, amplifier and target acoustic requirements.
ZEH can evaluate the woofer platform together with the enclosure and complete audio system.
Yes. You can provide a 2D drawing, 3D file, existing speaker sample, enclosure sample or complete audio product.
Our engineers will review the installation space, electronics, crossover, enclosure and acoustic requirements before recommending or modifying a platform.
Yes. ZEH supports engineering samples, enclosure matching, acoustic evaluation and pilot production before mass manufacturing.
The sample can be evaluated individually and inside the customer’s completed enclosure.
MOQ and development time depend on the selected woofer platform, customization level, tooling requirements, testing scope and expected production volume.
Please provide your technical requirements so ZEH can evaluate the development route and prepare a project-specific quotation.
