Explore the growing potential of bone conduction sleep speakers, combining innovative sound transmission technology, Bluetooth 5.4 connectivity, white noise playback, and sleep timer functions. Designed with compact ABS, cloth, and silicone materials, this sleep audio device offers 8–11 hours of playback and convenient wireless listening for relaxation and bedtime routines. Since 2008, Jaskey Limited has specialized in consumer audio product development, providing OEM/ODM customization, industrial design, and manufacturing solutions to help global brands develop differentiated lifestyle audio products.
The Portable LED Speaker combines 8W audio output, Bluetooth 5.3 connectivity, and colorful LED lighting in a stylish ABS plastic and fabric design. Supporting Bluetooth, TF card, USB, AUX, FM radio, and TWS connectivity, it offers versatile music playback for home entertainment, outdoor gatherings, travel, and everyday listening. Powered by a 1200mAh rechargeable battery with approximately 4–5 hours of playback, this multifunctional speaker is an ideal choice for retailers, wholesalers, and brands seeking competitive portable audio products. Jaskey Limited provides OEM/ODM customization services to support branding, product development, and wholesale cooperation.
Discover the latest wearable Bluetooth speaker designed for portable, hands-free listening. Featuring Bluetooth 5.4, a 4W speaker driver, clip-on design, TWS interconnection, hands-free calling, and USB-C charging, it offers a practical audio solution for outdoor activities, cycling, travel, and everyday use. With OEM/ODM and private label customization options, it is suitable for brands, distributors, retailers, and e-commerce sellers looking to expand their portable audio product ranges.
The Cube Bird Dancing Speaker is a creative Bluetooth speaker that combines a playful bird-inspired design with practical audio features. Equipped with Bluetooth 5.4, hands-free calling, TWS wireless connectivity and a 3W speaker, it delivers convenient wireless entertainment in a compact design. With up to 4 hours of working time, it is suitable for home, desktop use, parties and gift collections. Ideal for retailers, wholesalers and consumer electronics brands, this novelty speaker offers opportunities for product differentiation, seasonal promotions and OEM/ODM customization.
The 2-in-1 Bluetooth Speaker with TWS Earphones combines a portable wireless speaker and true wireless earbuds in one convenient design. Featuring Bluetooth 5.3, a 5W speaker, F13 copper ring earbud drivers, and a 10–15m transmission range, it offers flexible listening for home, office, travel, and everyday entertainment. The earbuds provide approximately 4–5 hours of playback, while the speaker delivers 2–3 hours of music. Made from ABS plastic and silicone, this versatile audio product is ideal for consumer electronics brands, retailers, and gift markets seeking innovative wireless audio solutions.
The Sport TWS Earphone features Bluetooth 5.4 connectivity, a compact charging case, and a lightweight ABS plastic design for convenient everyday wireless listening. With a transmission range of up to 10 meters, 2.5–4 hours of playback time, and a 200mAh charging case, it is suitable for commuting, leisure, and daily use. Jaskey Limited offers OEM/ODM cooperation opportunities for brands, wholesalers, importers, and retailers seeking reliable wireless audio products from an experienced China consumer electronics manufacturer.
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The China Waterproof Portable Bluetooth Speaker combines durable design with versatile audio performance for outdoor and everyday use. Featuring Bluetooth 5.3, hands-free calling, TWS connectivity, TF card and AUX support, it offers flexible listening options in a compact ABS and silicone design. With a 1800mAh battery and water-resistant construction, it is suitable for travel, camping, beach outings, and daily entertainment. Jaskey Limited provides OEM/ODM customization services for brands, distributors, and importers seeking reliable portable Bluetooth speaker solutions.
The WiFi Alexa Smart Speaker combines voice control, wireless audio, and smart home connectivity for convenient everyday living. Featuring support for Alexa skills, compatible Tuya smart home devices, multilingual interaction, and app-based control, it offers a practical solution for modern connected homes. With a compact design, 5W speaker output, and 2.4GHz WiFi connectivity, it is suitable for bedrooms, living rooms, and home office environments.
In the field of professional sound reinforcement, the traditional 2.1 multimedia speakers driving methods are the built-in crossover mode driven by a single power amplifier, which is only suitable for general applications. In modern sound reinforcement systems with high requirements and high power, bi-amplifier (bass power amplifier and mid-high frequency power amplifier) or triple-amplifier drive (high, medium and bass 2.1 multimedia speakers are driven respectively) are often used. Compared with the single-power amplifier driver, this matching method can avoid many shortcomings of the single-power amplifier driver, making the sound quality more pleasing to the ear.
1. Improve the damping coefficient of the 2.1 multimedia speakers system
The damping coefficient reflects the ratio of the 2.1 multimedia speakers impedance to the total impedance of the entire front-of-speaker circuit. The higher the damping coefficient, the more obvious the response of the output signal of the power amplifier to the 2.1 multimedia speakers, that is to say, the higher the control power of the power amplifier on the 2.1 multimedia speakers. The frequency division components used in the built-in frequency divider are all high-impedance components, so the power frequency division will greatly increase the total impedance of the circuit, thereby reducing the control power of the power amplifier and affecting the improvement of sound quality.
After using bi-amp or tri-amp drive, there is no built-in frequency divider circuit, so there is no adverse effect on the damping coefficient of the system.
2. Eliminate the insertion loss of the 2.1 multimedia speakers
The so-called insertion loss refers to the part of the power that is output by the power amplifier, but cannot be transmitted to the 2.1 multimedia speakers and converted into sound. The built-in frequency division is also called LC frequency division. Its principle is to use the low-pass and high-pass characteristics of the inductor (L) and capacitor (C) to prevent a part of the frequency signal from passing through a certain circuit, thereby completing the frequency division. However, the components such as inductors and cement resistors used in the built-in frequency divider are power components that consume a lot of energy. The energy lost on these components constitutes the so-called "insertion loss", and the more the frequency divider is complex, the greater the insertion loss will be.
After using bi-amp or tri-amp drive, since there is no third device between the output of the power amplifier and the 2.1 multimedia speakers unit, it can perfectly eliminate the insertion loss, that is, its utilization rate for the output energy of the power amplifier is significantly higher.
3. Better phase characteristics
In addition to the trouble caused by the internal resistance of the LC components of the power divider, the phase effects brought by them as the phase components also need to be carefully considered when designing the power frequency divider. For a 2.1 multimedia speakers, at different frequencies, the phase situation of the tweeter and the frequency divider is very complicated. If the phase problem is not considered when designing the frequency divider and appropriate phase compensation is made, it is likely to cause Although the frequency division attenuation of the tweeter and woofer is perfect, due to the inconsistent phase of the two, the curve is uneven, and even a 2.1 multimedia speakers with a perfect curve but poor phase, the sound is often better than no phase problem, but the curve is not too good, the ideal 2.1 multimedia speakers is much harder to hear.
After using bi-amp or three-amp drive, the circuit design of electronic frequency division is easier than the built-in frequency division in phase control, and the phase characteristic is much better than the built-in frequency division.
4. Drive power distribution is more accurate
After using bi-amp or tri-amp drive, each 2.1 multimedia speaker unit can obtain accurate driving power, give full play to their respective advantages and characteristics, and the sound quality is more pure and pleasant.
5. The crossover point and crossover characteristics are easier to control
2.1 multimedia speakers driven by bi-amp or tri-amp use integrated circuit active filter for frequency division. Before the amplifier, the sound signal is very weak, so it is easy to completely divide the sound, which can be easily adjusted by adjusting the input parameters. The crossover characteristics make up for the acoustic defects of the unit in a certain frequency band, and at the same time reduce the crossover area of the crossover, with good adjustability and improved electro-acoustic indicators.
6. Reduce modulation interference
For 2.1 multimedia speakers driven by a single power amplifier, the harmonic distortion and overload distortion of the woofer can be transmitted to the corresponding medium and high frequency 2.1 multimedia speakers units through the frequency division network, which increases the system distortion and the high frequency 2.1 multimedia speakers unit is easily damaged. After using bi-amp or tri-amp drive, the input of high frequency, intermediate frequency and low frequency is independent, which avoids the modulation interference of low frequency signal on high frequency signal in the transmission of "long" 2.1 multimedia speakers line, thus improving the quality of treble output. .
Therefore, after adopting the bi-amp or tri-amp drive mode, the sound distortion and power loss are reduced, and the perfect interpretation of the sound reinforcement quality is guaranteed.
