ZEH audio is a leader in innovative, high-performance single and multi-channel audio amplifiers for applications.
Digital amplifiers use compact Class-D designs and can support a wide range of speaker configurations. Available features vary by model and may include digital (S/PDIF) and analog inputs, allowing direct connection to digital signals, low-level analog signals, and high-level speaker outputs.
Some models also feature digital signal processing (DSP), providing adjustable functions such as crossover settings, filtering, frequency equalization, and dynamic range control.
The amplifier and speaker are two core components that work together in an audio system. The amplifier increases the audio signal and supplies the power required to drive the speaker, while the speaker converts the electrical signal into sound. Proper matching of power, impedance, sensitivity, and frequency range is essential for achieving sufficient volume, clear sound, and reliable system performance.
Matching a speaker with an amplifier involves more than simply comparing their rated power. Product structure, acoustic enclosure design, audio signal characteristics, operating environment, target sound pressure level, and continuous operating time can all affect the final sound quality and system reliability.
Frequency Range and Crossover Settings Must Be Coordinated：Different types of speakers are designed to reproduce different frequency ranges. Tweeters, midrange drivers, midbass drivers, and woofers should operate within their safe and effective frequency bands.
The Acoustic Enclosure and Product Structure Affect System Matching：Enclosure volume, sealing, bass-reflex design, sound openings, grilles, mounting position, and housing materials can all affect frequency response, sound pressure level, bass performance, and distortion.
Each amplifier can be selected and customized according to your product structure, speaker configuration, audio inputs, target sound quality, and production requirements. Key options include output power, impedance, channels, supply voltage, interfaces, dimensions, DSP, Bluetooth, EQ, crossovers, and circuit protection.
ZEH provides amplifier selection, speaker matching, PCBA design, DSP tuning, enclosure design, prototyping, and reliability testing. By optimizing the amplifier, speakers, enclosure, power supply, and product structure as a complete system, we help improve sound quality, simplify assembly, shorten development time, and ensure consistent performance in volume production.
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.
Different products have different requirements for output power, sound quality, power supply, audio interfaces, and installation space. ZEH provides audio amplifier selection, feature customization, and system integration support tailored to your end product. Simply share your requirements for supply voltage, speaker impedance, target output power, channel count, audio interfaces, and mounting dimensions. Based on your sound quality goals, thermal conditions, and budget, we will help evaluate suitable amplifier architectures, feature configurations, and supporting components, defining clear technical requirements for prototype development, complete system validation, and volume production.
Audio amplifiers need to work seamlessly with speakers, power supplies, audio inputs, and the product’s mechanical design. For OEM/ODM projects, ZEH provides coordinated services ranging from solution evaluation, circuit design, and feature customization to system tuning and finished product assembly, aligning speaker and amplifier designs with your product requirements.
We evaluate suitable amplifier solutions based on speaker impedance, target output power, supply voltage, sound quality requirements, channel count, and available space for thermal management. From audio modules to multichannel systems, we balance audio performance, efficiency, and overall product cost.
We configure Bluetooth, analog, or digital audio inputs according to your audio sources and control requirements. For projects requiring DSP, we can further evaluate equalization, crossover settings, filtering, and dynamic range control to match the feature set to the intended application.
We consider speakers, acoustic chambers, the main control board, and wiring harness connections together, matching and tuning them within the complete product. This helps reduce repeated adjustments between components and supports your target sound quality and audio output. We also provide matching enclosures, panels, color options, and logo customization to simplify integration into your product design and assembly process.
Based on load, power supply, and thermal requirements, we incorporate appropriate overcurrent, overtemperature, and short-circuit protection and verify output performance, temperature rise, and protection functions to support reliable continuous operation while optimizing overall manufacturing costs within the specified performance requirements.
