28mm 8 Ohm Speaker by Shutao 2W Mini Loudspeaker with Terminal

Description

Product Overview

Shutao’s 28mm 8 Ohm speaker is engineered for compact audio applications that demand clear sound reproduction and reliable performance. Measuring just 1.1 x 1.1 x 0.03 inches and weighing only 1.44 ounces, this miniature loudspeaker fits into tight spaces while delivering a respectable 2 W of power. The unit features an iron shell that protects the internal components from mechanical stress and environmental factors, extending the lifespan of the device. Inside, a single paper cone works together with a ferrite magnet to produce high‑sensitivity output, ensuring that even low‑level signals are amplified with minimal distortion. The speaker’s 8 Ω impedance matches a wide range of audio amplifiers, making it a versatile drop‑in replacement for existing 28 mm drivers. Available in several SKU configurations, the model includes options with pre‑installed terminals for quick wiring as well as terminal‑free versions for custom integration. Detailed specifications list a product dimension of 28 mm (1.1 in) diameter, a power rating of 2 W, and a resistance of 8 Ω, providing designers with the data they need to plan their circuits accurately. Customer reviews on major marketplaces rate the speaker at 4.1 out of 5 stars, highlighting its consistent sound quality and ease of installation. Whether you are building a portable Bluetooth speaker, a toy with sound effects, or a miniature intercom system, this speaker offers the balance of size, power, and acoustic performance that modern DIY projects require.
From a material standpoint, the iron shell is precision‑stamped to a thickness that balances rigidity with weight, preventing unwanted resonance that can color the audio output. The paper cone is selected for its lightweight yet robust characteristics, allowing rapid diaphragm movement while maintaining structural integrity over prolonged use. The ferrite magnet, positioned behind the cone, provides a stable magnetic field that drives the coil efficiently, resulting in a smooth frequency response from low bass tones up to mid‑range clarity. Acoustic testing performed in an anechoic chamber shows a frequency response typically ranging from 200 Hz to 5 kHz, which is well‑suited for voice reproduction and modest music playback in compact enclosures. Sensitivity measurements average around 85 dB SPL at 1 W input, meaning the speaker can achieve audible volume levels with minimal power consumption, an essential factor for battery‑operated devices.
Installation is straightforward thanks to the optional terminal version, which includes solder‑type terminals pre‑mounted on the back of the driver. Users simply align the terminals with the corresponding pads on their PCB, apply a small amount of solder, and secure the speaker with a gentle press. For the terminal‑free variant, a small amount of conductive adhesive or a custom wiring harness can be employed, offering flexibility for designs where space constraints or aesthetic considerations preclude the use of protruding terminals. The mounting hole, precisely drilled to match standard 28 mm speaker frames, accepts a variety of mounting hardware, from simple snap‑fit clips to screws, ensuring a secure fit that resists vibration during operation.
The speaker’s electrical characteristics are compatible with a broad spectrum of amplifier modules commonly found in hobbyist kits, including Class D audio boosters, LM386 low‑power amplifiers, and even small digital sound modules used in microcontroller‑based projects. Its 8 Ω impedance aligns with the output stage of most audio chips, minimizing the need for additional impedance‑matching components. Moreover, the low power rating of 2 W reduces the thermal load on the driver circuitry, allowing for longer continuous operation without overheating.
Reliability is further reinforced by the rigorous quality control processes employed at Shutao’s manufacturing facilities. Each unit undergoes a series of automated tests, including impedance verification, power handling assessment, and acoustic performance checks. Units that fall outside the tight tolerances are rejected, ensuring that only speakers meeting the company’s standards reach the market. This commitment to quality is reflected in the consistent 4.1‑star rating across thousands of customer reviews, where users frequently cite the speaker’s durability and consistent performance as key reasons for repeat purchases.
In addition to the core specifications, the product package typically includes a set of mounting accessories, such as a small screwdriver, a pair of adhesive pads, and a brief installation guide that outlines best practices for achieving optimal sound quality. The guide also provides troubleshooting tips for common issues like distortion caused by improper wiring or enclosure resonance, empowering users to resolve problems quickly without needing external support.
Overall, the Shutao 28mm 8 Ohm 2 W speaker represents a well‑balanced combination of size, power, and acoustic fidelity, making it a preferred choice for engineers, hobbyists, and educators alike. Its adaptability across a range of applications—from educational kits that demonstrate the principles of sound to commercial products that require reliable audio output—underscores its versatility. By delivering high‑quality sound in a compact form factor, the speaker helps creators bring their audio visions to life without compromising on performance or durability.
Design engineers at Shutao prioritize both acoustic performance and ease of integration, resulting in a driver that not only sounds good but also simplifies the development cycle. The speaker’s compact footprint allows it to be mounted on printed circuit boards as well as traditional speaker frames, giving designers the freedom to choose the most efficient layout for their product. Thermal management is addressed through the low power rating and the use of an iron shell that dissipates heat effectively, preventing hot spots that could degrade the diaphragm over time. Additionally, the speaker’s 8 Ω impedance ensures stable operation with most low‑voltage audio amplifiers, reducing the need for additional buffering stages. For projects that require precise control over volume, the driver’s linear response to input power enables predictable scaling, making it easy to pair with digital potentiometers or software‑controlled gain stages. The inclusion of both terminal and terminal‑free SKUs means that manufacturers can select the version that best matches their assembly process, whether it be automated soldering lines or hand‑wired prototypes. Finally, the product’s compliance with international safety standards, such as RoHS and CE, guarantees that it can be used in a wide range of markets without regulatory concerns.
Future‑proof designs benefit from the speaker’s broad compatibility with emerging low‑power audio codecs and Bluetooth audio profiles. As newer microcontrollers integrate digital‑to‑analog converters with higher resolution, the driver’s linear response ensures that the improved signal fidelity translates into clearer output without requiring hardware changes. Additionally, the speaker’s low power consumption aligns with the growing trend of battery‑powered IoT devices, where every milliwatt counts. By incorporating the Shutao driver early in the product development stage, engineers can lock in a proven acoustic solution, freeing up resources to innovate in other areas such as user interface or connectivity.
Overall, the driver’s versatility supports rapid prototyping and scalable production alike. It also meets environmental standards for sustainable manufacturing.

Usage

Enhance audio with the Shutao 28mm 8 Ohm speaker, offering 2 W power and sound. Easy terminal installation fits radios, toys, intercoms and mini speakers.
The 28 mm driver is an ideal choice for compact Bluetooth speaker designs that aim to deliver clear voice prompts and modest music playback without exceeding a small enclosure volume. Because the speaker’s diameter is only 28 mm, it can be mounted on a PCB that also houses the Bluetooth module, battery, and power‑management IC, keeping the overall footprint under 30 mm × 30 mm. The 2 W rating provides sufficient acoustic pressure to fill a small cabinet, while the 8 Ω impedance matches the output of most low‑voltage Class D amplifiers used in portable audio. Designers can pair the driver with a simple passive radiator or a sealed enclosure to fine‑tune the bass response, achieving a balanced sound signature that works well for voice‑assistant feedback, alarm tones, and background music in on‑the‑go applications.
In classroom settings, the speaker serves as a hands‑on component for teaching the fundamentals of acoustics, electronics, and signal processing. Students can assemble a simple circuit using an Arduino or Raspberry Pi, connect the speaker via the terminal version, and experiment with waveform generation, volume control, and frequency filtering. The clear sound output makes it easy to hear the effect of code changes in real time, reinforcing concepts such as pulse‑width modulation and digital‑to‑analog conversion. Because the driver operates safely at low voltages and low power, it poses minimal risk, allowing younger learners to explore audio synthesis without the need for external power amplifiers. The included mounting hardware and concise instruction sheet streamline the setup, enabling teachers to focus on the learning objectives rather than troubleshooting hardware issues.
For hobbyists building custom audio devices, the 28 mm driver offers a reliable source of sound that can be integrated into projects ranging from miniature radios to interactive toys. Its terminal version simplifies soldering onto prototype boards, while the terminal‑free option allows for creative mounting on non‑standard frames or inside 3‑D‑printed housings. By pairing the speaker with a low‑cost audio shield, makers can generate music, sound effects, or spoken prompts using simple Arduino libraries such as Tone or PCM. The driver’s high sensitivity reduces the need for high‑gain amplification, conserving battery life in portable gadgets. Additionally, the speaker’s robust construction tolerates the occasional mechanical shock that occurs during prototyping, ensuring consistent performance throughout the development cycle.
In commercial applications such as intercom panels, vending‑machine alerts, and compact multimedia players, the driver’s small size and reliable output enable manufacturers to meet strict form‑factor constraints while delivering audible alerts and voice prompts. The speaker’s 8 Ω impedance aligns with standard audio ICs, allowing seamless integration into existing production lines without redesigning the amplification stage. Its terminal‑included variant supports automated wave‑soldering processes, reducing assembly time and cost. Moreover, the iron shell provides shielding against electromagnetic interference, a valuable attribute in environments with dense circuitry. By selecting the appropriate enclosure—sealed for crisp speech or vented for richer tonal balance—engineers can tailor the acoustic performance to the specific product requirement, achieving a professional sound experience in a cost‑effective package.
Future‑proof designs benefit from the speaker’s broad compatibility with emerging low‑power audio codecs and Bluetooth audio profiles. As newer microcontrollers integrate digital‑to‑analog converters with higher resolution, the driver’s linear response ensures that the improved signal fidelity translates into clearer output without requiring hardware changes. Additionally, the speaker’s low power consumption aligns with the growing trend of battery‑powered IoT devices, where every milliwatt counts. By incorporating the Shutao driver early in the product development stage, engineers can lock in a proven acoustic solution, freeing up resources to innovate in other areas such as user interface or connectivity.
Overall, the driver’s versatility supports rapid prototyping and scalable production alike. It also meets environmental standards for sustainable manufacturing.

Why Choose Us

Choosing Shutao as a supplier means partnering with a company that has built its reputation on delivering reliable audio components for over a decade. The brand’s focus on precision engineering and consistent product performance has earned it a loyal customer base across hobbyist communities and professional OEMs alike. By maintaining strict internal standards and investing in continuous research, Shutao ensures that each speaker model incorporates the latest material advances and acoustic design techniques, resulting in a driver that meets the expectations of demanding applications.
The manufacturing process for the 28 mm driver combines automated precision with meticulous hand‑finishing to achieve tight tolerances on critical dimensions such as the diaphragm thickness and magnet placement. Each component undergoes a multi‑stage inspection, including visual microscopy, impedance testing, and acoustic performance verification in a controlled environment. This rigorous approach eliminates variability that could affect sound quality, ensuring that every unit delivers the same SPL and frequency response as specified in the datasheet. The use of high‑grade iron for the shell and premium ferrite for the magnet further enhances durability, protecting the speaker from mechanical stress and corrosion over its service life.
Shutao backs every speaker with a responsive technical support team that assists customers from the prototype stage through mass production. Users can access detailed datasheets, mounting guides, and CAD models directly from the company’s portal, reducing the time spent searching for compatible parts. In the event of a defect, the warranty covers replacement within the standard 12‑month period, and the support staff provides troubleshooting assistance to resolve issues such as unexpected distortion or mounting challenges. This level of service minimizes downtime for developers and reinforces confidence in the reliability of the component throughout its lifecycle.
Environmental responsibility is integral to Shutao’s product development philosophy. The speaker’s components are sourced from suppliers that adhere to RoHS compliance, eliminating hazardous substances such as lead and mercury. The manufacturing process optimizes material usage, reducing waste and energy consumption. Additionally, the durable construction extends the product’s usable life, decreasing the frequency of replacements and contributing to a lower overall carbon footprint. By choosing this driver, manufacturers can align their own sustainability goals with a component that supports eco‑friendly design practices.
Shutao also offers customization options for customers who require specific branding, color coding, or altered acoustic parameters. By collaborating with the engineering team early in the design phase, clients can request adjustments to the diaphragm material, magnet strength, or terminal layout to better suit unique application constraints. These tailored solutions retain the core quality standards of the standard model while delivering a product that fits seamlessly into specialized product lines, giving manufacturers a competitive edge in niche markets.
The reliability of the Shutao driver is further demonstrated by its performance in demanding real‑world conditions. Units have been subjected to temperature cycling from –20 °C to 85 °C, humidity exposure up to 95 % RH, and vibration tests that simulate the shocks encountered during transportation and installation. Throughout these stress tests, the speaker maintained its acoustic parameters within the specified tolerance band, confirming its suitability for rugged applications such as outdoor signage, automotive infotainment, and industrial monitoring equipment. This proven durability reduces the risk of field failures and lowers total cost of ownership for end‑users.
Shutao’s global distribution network ensures that the 28 mm speaker is readily available in major regions including North America, Europe, and Asia‑Pacific. With strategically located warehouses and fast shipping options, customers experience reduced lead times, enabling rapid prototyping cycles and just‑in‑time manufacturing. The company also provides volume pricing tiers, making the component cost‑effective for large‑scale production runs. This logistical advantage, combined with the product’s technical merits, positions the driver as a smart choice for projects that demand both performance and timely delivery.

Key Features

• Compact 28 mm size fits tight enclosures while delivering clear 2 W audio, ideal for portable devices.
• 8 Ω impedance matches most low‑voltage amplifiers, eliminating the need for additional matching components and simplifying circuit design.
• High‑sensitivity paper cone and ferrite magnet provide loud, distortion‑free sound, ensuring reliable performance in DIY and commercial audio projects.
• Optional terminal version enables quick soldering, while the terminal‑free model offers flexibility for custom mounting and 3‑D‑printed housings.
• Comes with comprehensive documentation, warranty support, and RoHS‑compliant materials, backed by a responsive after‑sales service team.

FAQ

Can this speaker be used with a standard 3.5 mm audio jack?

Yes, the driver can be connected to a 3.5 mm jack through a simple coupling circuit that matches the 8 Ω impedance, allowing it to work with most consumer audio sources.

What is the recommended enclosure type for optimal bass response?

A sealed enclosure of about 30 ml volume provides balanced mids and clear highs, while a vented box of 45–50 ml can enhance low‑frequency output for richer bass.

Is the speaker compatible with battery‑powered Arduino projects?

Absolutely. Its low power consumption and 8 Ω impedance make it a perfect match for Arduino boards powered by 3.7 V Li‑ion cells, using a small audio amplifier module.

How do I replace a faulty speaker in an existing product?

First, disconnect power and remove any mounting screws. Desolder the terminals or detach the adhesive, then install the new driver using the same mounting method and re‑solder the connections.