A compact mini sound bar with phone holder designed for modern lifestyles. Enjoy clear stereo sound, RGB lighting effects, and hands-free viewing for videos, music, and gaming—perfect for desk setups, home entertainment, and portable use.
A gaming headset OEM/ODM manufacturing solution designed for modern esports and lifestyle audio markets. Featuring 50mm high-performance drivers and an omnidirectional microphone, it delivers clear sound, stable communication, and immersive gaming experience. Suitable for brands, distributors, and e-commerce sellers looking for customizable private label audio products with reliable China manufacturing support.
Experience clear, immersive sound with ANC TWS Earbuds designed for modern lifestyles. Enjoy reduced noise, stable wireless connection, and all-day comfort in a compact, easy-to-carry design—perfect for work, travel, and everyday listening.
A smart Hearing Aid TWS Waterproof Headphone combining Bluetooth audio and hearing assistance in a comfortable wearable design. Built by a China OEM/ODM manufacturer (since 2008), it is ideal for brands, wholesalers, and Amazon sellers seeking a high-demand smart audio product with customization options.
The Wireless Speaker with Magnetic Stand combines Bluetooth audio, TWS pairing, and a magnetic mounting design for flexible use in home, office, and outdoor environments. Compact and portable, it meets the growing demand for multifunctional lifestyle audio products in global markets.
Furniture wireless chargers integrate charging technology into everyday furniture, offering a seamless, cable-free experience that meets the growing demand for smart, minimalist living and modern workspace solutions.
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The White Noise Bluetooth Speaker is a multifunctional sleep aid device designed to improve relaxation and sleep quality. It combines built-in white noise sound options, Bluetooth music playback, dual alarm functionality, and soft RGB ambient lighting to create a calming bedtime environment. Compact and easy to use, it helps users reduce stress, fall asleep faster, and maintain a consistent sleep routine, making it ideal for modern wellness-focused lifestyles.
Wireless ANC headphones are evolving into lifestyle-driven audio products, combining stable connectivity, immersive sound, and all-day comfort. With growing global demand, China OEM/ODM manufacturers help brands deliver innovative, customizable, and cost-efficient solutions for modern wireless audio markets.
Dancing Football Speakers combine wireless audio functionality with creative sports-inspired design, creating new opportunities in the Bluetooth speaker market. As demand grows for interactive consumer electronics, these products are attracting attention across retail, e-commerce, and gift channels worldwide.
So how to solve this problem?
First of all, we need to understand why the original phase curves of different models or different structures of outdoor bluetooth speakers are different. There are roughly 4 reasons:
1. The frequency division order is different or the frequency division slope is different. Each order of the high-pass filter and the low-pass filter has a phase shift of 45° at the crossover point. Different outdoor bluetooth speakers have different crossover structures, and some are two. Order, some are third order;
2. For externally driven outdoor bluetooth speakers, different unit processor channels have corresponding delay adjustments, that is, different programs have different delays. The amount of delay is determined by the delay difference between the units caused by the outdoor bluetooth speaker structure and the crossover slope, which results in different delays.
3. Different built-in crossover outdoor bluetooth speakers have different crossover adjustments. Some trebles have positive polarity, and some trebles have reverse polarity, so the phases of different models are different.
4. The number of frequency divisions is different. For example, three-way and two-way outdoor bluetooth speakers cannot achieve the same phase. Obviously, the reason is that the three-way frequency has one more frequency point than the two-way frequency, and the phase shift is more serious.
Therefore, the original phase curves of outdoor bluetooth speakers that are not the same model or different in structure will definitely be different. When they are used together, they will have an offset effect. Even if they are taken away to compensate for the equivalent delay difference, the offset will also occur.
When we are debugging, can we solve the problem with the following methods?
A. Test the original phase curves of the two outdoor bluetooth speakers(main and auxiliary) at close range, and then adjust the phase of the auxiliary outdoor bluetooth speaker to be the same as that of the main amplified outdoor bluetooth speaker. After finding the delay difference, add it to the auxiliary outdoor bluetooth speaker.
B. The second method is to first measure the delay difference of the two sets of outdoor bluetooth speakers, and then find their phase difference, and finally, pull the phase curve of the auxiliary outdoor bluetooth speakers to be the same as the main PA outdoor bluetooth speaker.
From the operation method, we can conclude that the difference is only the difference in the sequence of adjustment steps, but for actual operation, the first type is easier to learn, because the phase curve at close range is relatively stable and easy to observe and judge. But if the two sets of outdoor bluetooth speakers have been hung higher, the operability of the scenario A method is relatively weak.
The above is for the debugging between outdoor bluetooth speakers of different manufacturers. Sonic will adjust the phase before shipment. For customers, the later processing will be more convenient.
