Kangtai-Technology empowers, sound quality innovation!

KANGTAI

Empowered by technology, revolutionizing sound quality!

The company specializes in producing car audio speakers and currently cooperates with many domestic and foreign enterprises. Its main domestic customers include Chery, Geely, Lifan, Huatai Hyundai, and multiple electric vehicle companies

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Product Series

Product catalog

Car Speakers

Sound Quality: High resolution, low distortion, wide frequency response
Adaptability: Flexible upgrade, compatible with the original car system
Durability: Moisture-proof, shock-resistant, long lifespan
Experience: Immersive sound field, enhanced driving pleasure

Multimedia Speakers

Sound Quality Adjustment: Movie/Game/Music Optimization
Connection Method: Bluetooth/AUX/Fiber Optic/HDMI Multiple Interfaces
Size Design: Compact, suitable for desktop/TV cabinet
Smart Function: APP control, voice assistant

1998 Year

Company Founded in

20 +

Cultivating the industry for over 20 years

8000 ㎡

Floor Area

4 +

4 production lines

Changzhou Kangtai Electroacoustic Equipment Co., Ltd.

Technology empowers, sound quality innovation!

Changzhou Kangtai Electroacoustic Equipment Co., Ltd., founded in March 1998, is located in Xixia Shu Town, Xinbei District, Changzhou City. It is 20 kilometers away from the center of Changzhou City, 5 kilometers away from Changzhou Civil Aviation Airport, and 4 kilometers away from the Luoshuwan (Changzhou West) exit of the Shanghai-Nanjing Expressway. The transportation is very convenient. The company covers an area of more than 6,000 square meters and has a building area of more than 10,000 square meters. The company specializes in the production of car audio speakers, and now cooperates with many domestic and foreign enterprises. The main domestic customers include Chery, Geely, and many electric vehicle manufacturers. The secondary supporting customers include Ankai, Iveco, King Long, and Yaxing. The main foreign supporting customers include Renault, General Motors, Kia, and Mazda. The company has passed ISO9001, TS16949 and other quality system certifications, and products are regularly tested and certified by domestic third-party authoritative testing institutions.

Kangtai Acoustics · 5 Major Advantages

Technological R&D Advantages Production and Manufacturing Advantages Product Performance Advantages Brand and Market Advantages Customized Service Advantages

Innovative acoustic technology, defining industry standards!

Owns independent core technologies, such as high magnetic energy rubidium magnetic drive, nano diaphragm material; professional acoustic laboratory, precise adjustment of frequency response curve, achieving Hi-Fi sound quality; continuous investment in R&D, patent technology guarantees product competitiveness

Precision manufacturing, consistent quality!

Fully automated production line to ensure product consistency;Strict quality control system, passed CE, RoHS and other international certifications; Flexible production, supporting OEM/ODM customization

Excellent sound quality, exceeding expectations!

Wide frequency response range (20Hz-20kHz), high sensitivity, low distortion; moisture-proof and shock-resistant design, suitable for harsh environments such as vehicle and outdoor use; diversified product lines, covering consumer-grade to professional-grade needs

Globally trusted acoustic solution expert!

Years of industry cultivation, serving many countries and regions around the world; long-term cooperation with internationally renowned brands; perfect after-sales system, 24-hour technical support

Your needs, our acoustic answers!

Supports personalized customization of appearance, size, and sound effects; provides acoustic system integration solutions; rapid prototyping, agile response to customer needs

Always adhering to the principle of win-win cooperation, trusted by more than 200 customers

Facing a wealth of industry scenarios, meeting the diversified needs of enterprise development

How to express that the speaker's sound is bad?

2022-04-26

1. Timbre: The difference in sound caused by the different composition of high-order harmonics. 2. Localization: The fixed position of the sound-emitting device in the three-dimensional distribution presented in the sound space. 3. Sound Field: The sum of the spatial relationships formed by the different sounds and their states produced by the sound. 4. Transient Response: The controllability of the sound system in expressing instantaneous bursts of sound. 5. Dynamics: The ratio of the strong and weak changes in the sound. 6. Airiness: The degree of vibration of various sounds during sound reproduction. 7. Resolution: The ability of the sound system to express the details of the object. 8. Imaging: The ability of the sound system to focus on the sound image during reproduction. 9. Transparency: The degree to which the sound form is clear and easy to understand. 10. Balance: The degree to which the sound volume is natural during full-frequency reproduction.

A Brief Discussion on Matching Amplifiers and Speakers: Techniques and Precautions

2022-04-26

I. Impedance Matching 1. When matching a tube amplifier (tube machine) with a speaker, the output impedance of the amplifier should be equal to the impedance of the speaker; otherwise, the output power will be reduced and distortion will increase. Fortunately, most tube machines have variable output impedance matching interfaces such as 4-8-16 ohms, making speaker impedance matching simpler. 2. For the impedance matching of a transistor amplifier (solid-state machine) and a speaker ① When the speaker impedance is higher than the amplifier output impedance, there is no other effect except for a certain degree of reduction in output power. ② When the speaker impedance is lower than the amplifier output impedance, the output power increases proportionally, and the distortion generally does not increase or increases slightly, which can be ignored. However, the speaker impedance cannot be too low when matching, such as as low as 2 ohms (referring to two 4-ohm speakers connected in parallel). In this case, only when the amplifier has a large power surplus and uses high-performance high-power tubes and multiple tubes in parallel push-pull, there is generally no effect on such an amplifier. Conversely, for general ordinary amplifiers with not much surplus power, and the pcm and lcm of the amplifier tubes are not large, when the volume is turned up very high, the distortion will increase significantly, and in severe cases, it may damage the speaker. Please pay attention to this. Speaker supplier II. Power Matching 1. In principle, when the rated power of the speaker is inconsistent with the rated power of the amplifier, for the amplifier, its power size is only related to the speaker impedance, and has nothing to do with the rated power of the speaker. Whether the speaker power and amplifier power are the same or not has no effect on the amplifier's operation, but only on the safety of the speaker itself. Invisible speakers V2 subvert the traditional sound emission principle, originating from British NXT technology. Unlike the traditional cone piston vibration method, it uses an innovative drive chip to drive the entire honeycomb panel sound emission surface, which can evenly distribute the sound 180 degrees throughout the space, achieving a 360-degree dead-angle listening effect. No matter where you are in the room, you can enjoy pleasant and beautiful sounds. Built-in self-recovery insurance and filter circuits provide effective protection in the state of sound distortion, and laboratory tests can effectively protect the speakers from being burned out. 2. If the speaker impedance meets the matching requirements, but the power it can withstand is smaller than the amplifier power, then the driving power is sufficient, and it sounds very comfortable. This is often said that the amplifier needs a large reserve power to fully express the full connotation of music, especially the low-frequency part of the music, which is more vivid and powerful. This is a better match. 3. If the rated impedance of the speaker is greater than the rated power of the amplifier, although both can work safely, the power amplifier's driving power seems insufficient, and the loudness will feel insufficient. It often appears that it has already reached saturation, the distortion increases, and it still feels powerless. This is a poor match.

The development status of China's speaker market

2022-04-26

Speakers can be found in all sound-producing electronic and electrical devices. A speaker, also commonly known as a loudspeaker, is a transducer that converts electrical signals into acoustic signals. It is the final output device of a speaker system, therefore the performance of the speaker directly affects the sound quality. In order to meet the higher requirements of different usage environments and different audio equipment, in recent years, with the continuous development of digital audio technology, the requirements for speakers have become more stringent. To adapt to technological advancements and meet the needs of different consumers, many companies are constantly improving speaker performance, developing new materials and processes, and employing new design methods. Currently, China's speaker industry is developing very well, and the quality of its products has already achieved international market competitiveness. With the continuous expansion of the downstream demand market and the continuous growth of exports in China's speaker industry, a new development opportunity will be ushered in the future. With the continuous advancement of technology and increasingly developed communication, electronic products are rapidly updated, especially the mobile phone and computer markets are developing rapidly, and are moving towards multi-functionality, personalization, and miniaturization. However, sound effects need to be continuously improved. The playback of multimedia films, mobile phone ringtones, arrangement functions, MP3 listening, etc., all require better sound interfaces. The expansion of domestic market demand has also favorably promoted the development of speakers.

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cz_contech@163.com

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