Home > News > The company news > What are the 4 major matches o.....
Contact Us
Tel. Number: 0086 - 755-82239330 - 808
Email address: info@jaskeyworld.com
Office address:4/ Floor, Building 1 of Xingji Center, Danzhutou Industrial Area, Longgang District, Shenzhen, China
Contact Now
Latest News

Smart audio glasses introduce

In this era when intelligence is taking over our lives, there are more and more technological smart products such as mobile phones, tablet computers, ...

HKTDC 2020 Online Fair

Welcome to visit us via HKTDC Online Fair , please contact with us via mail info@jaskeyworld.com for more information, thanks!

Why are large portable speakers more popular?

Nowadays,large portable speaker are very common in the market. Not long ago, Meizu also released a small Bluetooth speaker. So why are large portable speakers so popular?

How to use tws bluetooth headset

After the tws bluetooth headset is paired, the mobile phone needs to search for bluetooth devices. Generally, it takes about 5 seconds tosearch for the tws bluetooth headset.Most cell phone passwords are 0000 or 1234, but some are specially set by the manufacturer, which will be detailed in your tws bluetooth headset manual.

Advantages of live broadcast

The information dimension of live broadcasting ismore abundant, which enables consumers to have a more intuitive and comprehensive understanding of product content and service information.The biggest advantage of live streaming is that it allows consumers to immerse themselves in the shopping scene.

How to better choose and use dancing speaker

For music lovers, they have a set of their favorite sound system, and one of the important components-speakers, play a decisive role in the quality of the replay sound, so when choosing dancing speakers, they will take great pains, but apart from comparing the speaker technology In addition to indicators and listening evaluation, some small knowledge about dancing speakers will also allow you to better choose and use dancing speakers.

The advantages of bluetooth wireless headphones

Don't worry, in order to cope with these situations, bluetooth wireless headphones have emerged, of course, the invention of bluetooth wireless headphones must be attributed to the development of science and technology and the infinite wisdom of human beings.

Selfie light - Illuminates your beauty

Whether it's a regular selfie light or a circular selfie light, you'll find your eyes twinkling after you take a selfie.Maybe you'll fall in love with this selfie light after you use it.


What are the 4 major matches of professional audio systems portable music speaker?

  • Author:Hedy
  • Release Date:2021-02-24

In professional audio systems, the matching of professional power amplifiers and professional portable music speaker, in addition to the soft timbre (timbre collocation is often said to be soft and hard, it is based on the designer's design and materials for the tone color, and has the characteristics and personality ), there are some hard matches on technical indicators. Soft collocation is based on accumulated experience and personal preference, while hard collocation is determined by data and basic technical common sense. The following is a brief description of the four major "hard collocation" related issues.

Do you know the 4 major combinations of professional audio systems portable music speaker?

Impedance matching

1. When the tube power amplifier (tube amplifier) is matched with portable music speaker, the output impedance of the amplifier should be equal to the impedance of portable music speaker, otherwise it will reduce the output power and increase the distortion. Fortunately, most amplifiers have variable output impedance matching interfaces such as 4-8-16 ohms, and impedance matching with speakers has become simpler.

portable music speaker

2. For the matching of transistor power amplifier (stone machine) and portable music speaker impedance

① When portable music speaker impedance is higher than the output impedance of the power amplifier, there is no other effect except for the different degree of reduction of the output power.

② When portable music speaker impedance is lower than the output impedance of the power amplifier, the output power increases proportionally, and the distortion generally does not increase or the increase is negligible. However, portable music speaker impedance cannot be too low during matching, such as as low as 2 ohms (referring to when two 4 ohm portable music speakers are connected in parallel). At this time, only the power amplifier has a large margin, and the high-power tube and multi-tube parallel push-pull with good performance are used. It has no effect on such power amplifiers.

On the contrary, ordinary power amplifiers are generally not rich enough, and the pcm and lcm of the power amplifier tubes are not large. When the volume is turned on again, the distortion will increase significantly, and the box will be destroyed in serious cases. Pay attention.

Power matching

1. In principle, when portable music speaker rated power is inconsistent with the power amplifier's rated power, for the amplifier, its power is only related to portable music speaker impedance, not portable music speaker rated power. Regardless of whether the power of portable music speaker and the power of the amplifier are the same, it has no effect on the work of the amplifier, but is only related to the safety of portable music speaker itself.

2. If portable music speaker impedance meets the matching requirements, and the withstand power is less than the power of the amplifier, the driving power is sufficient, which sounds very comfortable. This is often said that the reserve power of the power amplifier must be large in order to fully express the full content of the music, especially the low frequency part of the music, which is more vivid and powerful. This is a good match.

3. If the rated impedance of portable music speaker is greater than the rated power of the power amplifier, although both can work safely, at this time the power amplifier is not enough to drive the power, and the loudness will be insufficient. It often appears that it has been turned on to a saturated state, and the distortion is aggravated. Powerless. This is a poor match.

Match according to the damping coefficient

For choosing a pair of hi-fi speakers, there should be the best specific resistance requirements (responsible speaker manufacturers should provide this data, which refers to the requirements for the damping coefficient of the power amplifier. To make it clear is to match this. For portable music speakers, what is the damping coefficient of the power amplifier required?).

In general, it is better for the damping coefficient of the power amplifier to be higher. When the damping coefficient of the low-end power amplifier is less than 10, the low-frequency characteristics, output characteristics, and high-order harmonic characteristics of portable music speakers will all deteriorate. (The damping number of household power amplifiers is generally between tens to hundreds).

The matching of wires

The effect of use is a matter of opinion. In general, a good cable will improve a certain system of audio equipment. Its transmission theory is too complicated to say, it can only be briefly described.

The material and structure of the transmission line determine three important parameters, namely resistance, capacitance, inductance (and electromagnetic effect, skin effect, proximity effect, reactance, etc.). Don’t look at the small gaps in these parameters, which will directly affect the audio system frequency. Characteristics, damping characteristics, signal rate, phase accuracy, and tone color orientation and sound field positioning, etc. Its main function is high-speed transmission (to minimize signal loss), anti-vibration, anti-noise, anti-interference (mainly radio wave rf1 radio frequency interference and em1 electromagnetic wave interference, etc.).

portable music speaker