Discover how Golf Magnetic Speakers are creating new opportunities in the portable audio market. Combining powerful Bluetooth sound, magnetic mounting, IP67 waterproof protection, portable design, and multifunctional features, these speakers are designed for golf carts and active outdoor lifestyles. As a China consumer electronics OEM/ODM manufacturer, we explore how customized Golf Magnetic Speaker development can help brands, retailers, distributors, and private label businesses create differentiated products for global markets.
Compact and fun, this Portable Karaoke Speaker with Microphone features Bluetooth 5.1, TF, Line In and LED lighting. Ideal for home entertainment, gifts, retail and private-label markets, with OEM/ODM customization available.
Sport Smart Video Audio Glasses combine hands-free video recording, wireless audio and AI-powered functions in a lightweight wearable design. Featuring Bluetooth 5.4, AI voice interaction, object recognition, translation, video stabilization, ENC noise reduction and Wi-Fi transmission, these smart glasses are designed for sports, travel, content creation and everyday communication. With app support and OTA upgrades, they offer a flexible smart wearable solution for brands, distributors and retailers exploring next-generation audio and AI wearable products.
Discover our Car Mould Wireless Speaker, a creative Bluetooth audio solution designed for global retailers, importers, and brands. Featuring a unique car-inspired design, Bluetooth 5.4, TWS connection, portable performance, and OEM/ODM customization support, this innovative wireless speaker helps businesses create differentiated consumer electronics product lines.
Explore the latest TWS earphone trends shaping the future of wireless audio. With growing demand for smart, portable, and lifestyle-driven audio products, TWS earbuds are becoming essential for global consumers. Experienced manufacturers support brands with innovative design, product development, customization solutions, and reliable supply capabilities to create competitive wireless audio products for worldwide markets.
AI Smart Video Audio Glasses combine wireless audio, HD camera, and AI intelligent features in a stylish wearable design. Supporting AI voice assistant, smart translation, photo recognition, and hands-free video recording, they are ideal for travel, business, and content creation. With customizable lens options and OEM/ODM support, they provide a smart wearable solution for global brands and retailers.
RGB Light Bluetooth Headphones combine wireless audio performance with eye-catching lighting effects, creating a stylish experience for gaming, entertainment, and daily use. Featuring Bluetooth 5.3, 40mm drivers, AUX support, and a lightweight ABS design, they deliver reliable connectivity, immersive sound, and strong market appeal for lifestyle audio brands and private label projects.
The Multi-function Portable Speaker KLS-0053 is a versatile audio solution designed for global consumer electronics markets. Combining 30W powerful sound output, Bluetooth 5.0 connectivity, karaoke function, microphone support, multiple audio inputs, and premium wood + ABS design, this portable speaker delivers entertainment value across home, outdoor, retail, and promotional applications. As a professional China Bluetooth speaker manufacturer, we provide OEM/ODM customization services to help brands, distributors, and retailers develop competitive audio products with unique market positioning.
Magic LED Cube Speaker is a creative Bluetooth audio product that combines compact design, colorful LED lighting, and practical sound functions for modern lifestyles. Featuring Bluetooth connectivity, TF card support, AUX input, and hands-free calling, it delivers a versatile audio experience in a stylish cube-shaped design. With its portable size, multiple color options, and eye-catching visual appeal, it is ideal for home entertainment, desktop decoration, travel, gifting, and lifestyle applications. Designed by an experienced consumer electronics team established in 2008, this innovative speaker reflects a commitment to creative design, reliable quality, and global market trends.
Custom Metal Mini Bluetooth Speaker is a premium wireless audio solution designed for global brands, retailers and gift companies. Featuring a stylish alloy metal body, Bluetooth connectivity, hands-free calling and AUX input support, this compact speaker combines modern design with practical functionality. With OEM/ODM customization options, it is ideal for lifestyle electronics, corporate gifts, promotional products, retail collections and private label audio projects.
Secondly, how to choose a power amplifier in a hall? In practical applications, we generally do not directly choose a power amplifier with 400W output or 800W output. Because of the size of the power amplifier output, whether the sound we care about in the hall is loud enough is not the same thing. The power output of the power amplifier of the system, in terms of type, some push full-range main channel portable party speakers, some push and pull audio-visual portable party speakers, some push stage return portable party speakers, and some push subwoofer portable party speakers, the number of effects is different. It is very large, and at the same time is related to the sensitivity of the portable party speaker being pushed. In addition, it is also closely related to the acoustic environment of the hall. The influence of so many factors on the sound pressure level (usually the portable party speaker does not sound), we can use a formula to quantify the characterization: W=10 (LP-LS+20Igr) /10LP: Test point (portable party speaker radiation distance) requirements sound pressure level in dB;
LS: portable party speaker sensitivity dB, given by portable party speaker parameters;
r: The distance m from the portable party speaker to the test point, also known as the portable party speaker radiation distance W: The driving power required by a single portable party speaker can be used as a basis to reasonably determine the electrical power output by the power amplifier. It should be noted here that the formula - generally determines the output power of the channel power amplifier. The stage return portable party speakers can be determined by 30%-50% of the main channel power, the output power of the subwoofer can be determined by 100%-150% of the main channel power, and the power amplifier power of the auxiliary portable party speakers can be determined by 50% of the main channel power. %-100% sure. Never use gross estimates, but rely on imagination to determine. If it is determined in this way, the consequences will either be wasted (the power is selected too large), or the effect will not be achieved, and it is very easy to cause damage to the amplifier (the power is selected too small), unless you are very experienced.
How to make good use of the power amplifier in the portable party speaker system
How to judge the quality of a power amplifier For a power amplifier, many people often cannot judge its quality. Just relying on the indicators provided by the manufacturer is often confusing, and depending on the price, in some cases, it is not necessarily a good product if the price is high. Today, the author will talk about how to judge the quality of the power amplifier from the actual situation of use. Of course, it is another matter to use the instrument to test the indicators.
To get a power amplifier, we can simply judge from the following aspects:
1. Appearance and packaging - The outer packaging of the power amplifier should firstly check whether the packaging box is upright, whether the printing is exquisite, and whether the information is complete (specification, origin, certification, etc.), and then whether the shock-proof filling material of the packaging is environmentally friendly. Those that are well packaged, reasonable and environmentally friendly can be considered as good amplifiers.
2. Check the appearance of the power amplifier to see whether the surface treatment of the panel is fine, whether the shell plate is thick, whether the screws and screw holes are accurate, whether the knobs, connectors, and word printing are accurate and clear. If all are relatively good, it can be considered that the quality of the power amplifier is good.
3. Turn on the power amplifier to see whether the volume and weight of the toroidal transformer match the marked output power, whether the appearance is rough, and then see whether the filter capacitor is a genuine factory product, and whether the capacity and withstand voltage are sufficient (generally, the capacity is 10000uf and the withstand voltage is 100- -200v) Whether the wiring is clear and reasonable, especially the high-power tubes: - Depending on the number, as the output power increases, the number of high-power tubes can be configured from 8 to 24 or even more.
4. Judging the protection circuit to see whether the protection circuit module is relatively simple, the regular protection circuit has functions such as overcurrent, overvoltage, overtemperature, and time delay. A poor power amplifier only has a power-on delay, no other protection measures, and the circuit is very simple.
5. The fan has low noise, no transformer vibration, and no other abnormal sounds. Otherwise, the power amplifier is a bad product.
