Inventory of those well -known world’s high -level active speakers (2)
Active Speaker, also known as “active speakers”, is also called Passive Speaker, also known as passive speakers. Simple differences, in fact, depends on whether the speaker is “built -in” power amplifier circuit. Although literally, the source speaker can be considered as a speaker that must be plugged in, but strictly speaking, this “source” should be understood as power amplifier, not the power supply, because some speakers need power drive but still require external amplifier speakers. But these speakers obviously do not belong to the active speakers. As for why the built -in word is added to the double quotes, it is because some of the power amplifier parts with active speakers are not placed inside the speaker, but are connected outside the speaker. The amplifier, so this type of speaker is also called a source speaker.
Due to the built -in amplifier circuit, the user does not need to consider the problem of matching with the amplifier, and it is also convenient to use a lower level audio signal. This characteristic makes many professional audio people such as recording studios, musicians and audio workers like it, so many active speakers are mostly used in professional audio fields as monitoring speakers. At the same time, due to the convenience of its own power amplifiers, many home theaters design I also like to use active speakers.
Many enthusiasts once believed that the limited space in speakers would limit the play amplifier circuit, and at the same time, unable to replace the amplifier circuit to make the sound fail to meet their own requirements. And musicians recognize and use.
This article will consolidate all kinds of active speakers on the market. Due to the large number of quality and limited space, it cannot be listed one by one. The author has compiled several hot -selling models released by well -known brands. As the integration of data, text and pictures are from the Internet. Essence
In 1990, he served as MR. Andrian Loader (professional audio equipment agent in Britain), who worked at the BBC Broadcasting Corporation and served as FWO Bauch (a professional audio equipment agent in the UK). PMC was established. Combined with the speakers and professional knowledge about music, they created the first group of the world’s largest, using low-frequency transmission line-designed recording studio-specific active lecture speakers-BB5/XBD, its excellent sound performance and its amazing appearance perfectly perfect Follow. At the same time, PMC is one of the few companies that have won the Emmy Awards for their contributions to outstanding records.
RESULT6 is a well -known global speaker of PMC. It has high resolution and details, accurate, extended bass, consistent tone balance and extensive diffusion. Result6 combines the huge advantage of PMC and ATL ™ technology, which is the core special bass loading system of PMC design. This compact near -field emphasizes elegance and simplicity, without too complicated DSP -based user options or configuration files. On the contrary, Result6 relies on its engineering strength to achieve its unique neutral and reliable PMC sound. The unique fin6 is called D-FINS on Result6. They are called D-Fins. They provide the main sound advantages by expanding the sweet point of stereo. The result is that it has a better departure response in a wider area. At the same time, you can change the listening position during work, instead of adversely affecting the contents of the hearing, and the frequency response keeps flat and natural. With dual low distortion (HF 65W, LF 100W) amplifier, ATL ™ bass load, and many major innovations, Result6 can achieve the original sound replay faster and accurately.
The ATL ™ bass load is a very distinctive technology in Result6. The transmission line places the drive unit at the end of a long highlighted tunnel. The tunnel absorbs all the unwanted mid -frequency and high -frequency energy that is radiated from the rear of the driver. , But allowing the minimum frequency and positive radiation from the driver unit, which greatly enhances its bass performance. The transmission line is effective in the broadband width of about two times the frequency range of the main resonance frequency of the transmission line, and it controls the movement of the driver’s unit in this area to reduce the distortion and improve the maximum output level. The resonance frequency of the transmission line is defined by the acoustic length of the transmission line. It is the frequency of a quarter wavelength equal to the acoustic length of the transmission line. The design of the transmission cable speaker requires a balanced parameter and variables, from the driving unit parameters to the length, area, cone and contour, foam placing, thickness and specifications of the line length, area, cone, and contour. All these parameters affect each other in a complex way, which means that in order to achieve the ideal results, they must be considered and optimized together.
The transmission cable speaker is not a new concept, which has existed since the 1930s. However, the early transmission cable speakers were very large and bulky, and there were countless problems, such as unprepared resonance, poor coupling of the drive unit/transmission line, and the position of the driving unit/ventilation port was not optimized. PMC spends a lot of time and money to study and develop the concepts behind the transmission line speakers to give full play to the entire potential of these designs. The first major development is the water absorption foam specification used by PMC for the lining. This provides the correct intermediate frequency and high -frequency absorption combination, as well as the control of low -frequency resonance and the speed of the box of the box on the speed of the box when passing through the foam. At the same time, the resonance absorption room is developed in the cabinet, enabling the box to further control the specific unnecessary resonance frequency, reduce distortion and increase the linearity of the speaker; The large hydraulic diameter channel makes the air flow in the air flow smoothly, which greatly reduces the turbulence in the airflow.
In the frequency range of the transmission line in the active state, the air in the wire actually becomes harder and couples to the back of the drive unit cone (this is the way the transmission line controls the cone motion). When this happens, the consistent vision will increase significantly in the quality of mobile, thereby reducing the effective resonance frequency of the drive unit. As a result, the speaker can now produce a deeper subwoofer. Compared with the same driver in the seal or port box, it has a greater dynamic balance and less distortion. Because the transmission line uses acoustic bubbles to make a good damping to absorb the unnecessary intermediate frequency and high frequencies that radiates into the box, the quality produced by the transmission line speaker is also very accurate and good. Most simple transplant speakers see more. Unlike the Humhhz resonance used by transplant speakers to increase the low -sound response, the transmission line does not change its efficiency with the signal level. The port speaker usually loses the bass output at a low signal level because its port will not become efficient and active before a large amount of energy input system. Essence
Although PMC uses customized acoustic bubbles to absorb the resonance and post -radiation of the ATL speaker box, PMC finds that sometimes a specific resonance frequency requires a large amount of foam to completely damage, resulting in dry low sound response of excessive speakers. In these cases, PMC uses the resonance chamber in the box to control specific frequencies. These cavities can accurately adjust to specific frequencies, and can effectively remove these unnecessary frequencies from the output of ATL, so that the speaker makes a completely clean and colorless sound. Sound absorption in the transmission line means that there is no intermediate frequency or high -frequency energy from the box through the cone. The fact that the fact that there is no excessive back pressure in the box to prevent the cone from moving in medium and high -frequency free movement means that the transmission cable speaker can provide incredible transparency and colorless mid -frequency details, as well as relaxed and unrestrained music presentation.
In addition, because the motion of the cone is controlled by the minimum frequency transmission line, the driver’s offset is significantly reduced for a given bass output level. This greatly reduces low -frequency distortion, because non -linearity of high drive offset is the most important reason for low frequency distortion. In the ventilating port design of Result6, PMC applies Laminair ™ aerodynamic ventilation. This technology is the same as the ATL aerodynamic principle in the high -performance engineering in F1 and Le Mans. The airflow improves audio performance to a new level. The air can move the air at high speed and pressure through LAMINAIR ™ air dynamic ventilation, which can achieve a bass with the best time and widest dynamic range with the best time and widest dynamic range.
When making a Result6 shell, structural integrity and accuracy are very critical factor, and in the overall design method, each element is considered to improve performance. Manufacturing boxes and precision ATL ™ (advanced transmission lines) are panels for precisionly processed HDF materials for HDF materials, which are even as high as 40 mm. Coupled with the accuracy of the joints and high -intensity bonding agents, a homogeneous, perfect structure can be created, which can provide the ideal platform for Result6 to provide pure and non -destructive audio.
Neumann, that is, the meaning of newcomers in German. As the law of nature, people always get old, but the name Neumann has been loud for 80 years in the professional audio field, but still maintains its reputation and become a forever forever. The name of youth. Speaking of Neumann microphone, no one knows in the field of audio. In 1923, Georg Neumann, a younger engineer in Germany, made a high -quality carbon tube for telephone communications, and since then he started the glorious history of his development of the microphone. In 1928, Mr. Newman officially developed the Newman bottle -shaped microphone, which was successfully developed. This tradition continued to the popular milestone microphone U47, U67, U87 and U89. From then on, Neumann’s product nameplate and NEUMANN, headquarters in Berlin, Germany, also officially came out. Neumann’s historical timeline began to record.
Of course, the company established in Berlin in 1928 also paid a long time to pay attention to other technologies except microphone. The versatile invention Georg Neumann also developed a voice machine, record player and rechargeable battery. The latter’s technology is the foundation of the omnipresent battery today. At the same time, Neumann also created a customized speaker unit for the broadcasting room, theater and the concert hall. In 1991, Sennheel Group officially acquired Neumann. Since 2010, Neumann has provided professional knowledge in the technology of electro -acoustic converters to the studio monitoring market, and will provide the best solution for customers in the fields of TV and radio radio, recording and audio production. This article will introduce the KH series recording sheds provided by NEUMANN for customers in the field of recording and audio production.
KH 80 DSP: Ultra -compact, DSP -controlled dual -channel dual -channel source near -field monitoring speakers, with excellent backup power. With its digital core, the KH 80 DSP speaker can support the filtering function and room adjustment options, so as to restore the reference level to any environment. Even with a compact design, it has extraordinary spare power and classic advantages of the concept of Neumann speaker: clearly defined diffusion angle, distorted design and sophisticated material choices. The design of the KH80 DSP is based on Neumann’s computer simulation. The mathematical modeling spread waveguide (MMD ™) provides a solid foundation for the recording studio series to achieve unique and accurate sound orientation. Even in the most harsh environment, you can obtain the highest quality components, high -end protection systems and reserve power from the studio -level products. Its design makes the KH 80 DSP a multi -functional close -up speaker, which can provide the required professional quality sounds anytime, anywhere in projects and music studios, editors and broadcast rooms or outdoor live cars. The research and development of KH 80 DSP covers hundreds of sufficient reasons, and they eventually bring together a particularly pure and neutral sound. For example, reducing the curvature of the edge diffraction and the piston output of the bass drive, even if it reaches the highest sound peak, it will not cause harmonic distortion.
KH 120: The powerful compact active recording studio monitoring speakers have excellent pulse response and resolution. KH 120 is the pioneer model of Neumann and the R & D standard of listening speakers in compact studio monitoring speakers. Since 2011, it has been a reference benchmark for close -up monitoring. The huge spare power can meet the high -precision sound conduction. As a result, in the frequency response of the entire neutral design, the maximum signal preservation and clear transient response are achieved. KH 120 is a source monitor listening speaker (80 W) with armal protection AB amplifier. Like the driver unit, its mathematical modeling diffusion ™ (MMD ™) waveguard is also calculated through the highest accuracy. The sound is distributed in a horizontal accuracy to ensure the flexibility of the listening position; the narrow vertical direction diffusion will reduce the negative effects of nearby reflection. No matter what kind of room configuration, the finely controlled diffusion characteristics can also be optimized and reproduced.
KH 120 is usually used in recent field applications such as projects, music, broadcasting, and post -production studio, and conducts recording, mixing and mother belt production. It provides a digital input “D” version. With its digital exchange mode power and dual amplifier mode, the KH 120 can achieve a sound pressure of up to 111.1 dB, so that high -resolution and neutral performance can be maintained in the entire frequency response, providing sufficient energy for the maximum dynamics, and there is no Dislatable and loss, bass can be as low as 52 Hz. The optimized design of the driver’s unit provides a clean voice until the lowest part of the 50 Hz area. This rich foundation provides enough space to mix cleanly without using auxiliary subwoofer. In the harsh scope of treble, the functional alloy material balls were specially developed to ensure that the sound was unpleasant.
KH 310: High -resolution, three -channel source near -field monitoring speakers, optimized for medium and pure bass. Due to the specially designed mid -sound drive, the compact KH 310 is particularly suitable for voice, vocal, guitar, and other musical instruments. Its closed design supports extremely fast transient response. Related low harmonic distortion can ensure neutral reference sound to meet the highest standards. KH 310 is a three -way and three -channel source monitor listening speaker, with heating -protected AB amplifier (210 W and twice 90W). Its mathematical modeling diffusion ™ (MMD ™) waveguard can pass the sound waves extremely accurately to the room.
Use the software developed by Neumann to model the driver unit, which can reduce non -linear distortion in various cases. The sound is distributed in a horizontal accuracy to ensure the flexibility of the listening position; the narrow vertical direction diffusion will reduce the negative effects of nearby reflection. Even in the configuration of various rooms, the exquisitely controlled diffusion characteristics can be optimized and reproducible. Through various acoustic control settings, the response has strong adaptability. With its powerful switch mode power and three -channel source power amplifier, the KH 310 can achieve a sound pressure of up to 116.3 dB, thereby maintaining high resolution and neutral performance during the entire frequency response. In this way, even the most demanding pulse dynamics can provide sufficient energy without distortion or loss, and the bass can be as low as 34 Hz. The closed box design means that the group delay is lower, while the transient response is always accurately controlled.
The optimized design driver unit makes the original sound direct to the lowest bass area. For most applications, this rich foundation provides sufficient space, which can be mixed cleanly without using auxiliary bass guns. Within the harsh pitch range, the powerful alloy material ball tops that are developed can ensure that the sound has no distortion within the high frequency range. The ultra -light fabric ball top structure captures the range range with high accuracy. Compared with the same medium sound ball top, its ultra -light material and powerful pillar magnet can achieve a significant and better transient response, and less distortion.
KH 420: The working distance is 1.5 to 3 meters (5 to 9 feet). Thanks to strong power reserves and accurate concentrated diffusion, it can easily cope with this space. Even in different acoustic environments, the KH 420 can still maintain neutrality and clearly, reflecting the most subtle difference. No delicateness will be lost; each sound element can be found. KH 420 is a three -way and three -channel source monitor listening speaker, with heating -protected AB amplifiers (330 W and double 140W). Just like the driver unit, its mathematical model diffusion ™ (MMD ™) waveguard aims to achieve the purpose Best accuracy.
The sound is distributed in a horizontal way to ensure the flexibility of the listening position; the narrow vertical direction diffusion will reduce the negative effects of nearby reflection. The spread of the KH 420 deliberately designed a narrower design to ensure the reference sound at a longer working distance. With its three -channel active power amplifier, the KH 420 can achieve a sound pressure up to 122.4, so that high resolution and neutral performance can be maintained throughout the frequency response. It also includes excellent low sound response as low as 26 Hz. Although the port is used, there is no “overHang” or the resonance that can be heard in the low frequency range, and it can always accurately control the transient response. Computer modeling chassis is made of LRIM ™ material, which can eliminate the residential resonance and inhibit mutual distortion, especially within the intermediate frequency range.
For the demanding high sound, the alloy material ball top can capture the middle sound the most accurately. Compared with the same intermediate frequency drive unit, its ultra -light material and powerful cricket magnets can achieve significant and better transient response, but less distortion. Digital input module DIM 1 expands the speaker electronic device through digital XLR input, digital BNC input and digital BNC output (192 kHz / 24 bits) to achieve flexible digital signal links. Through the delay function of DIM 1 (adjustment range of 0-400 ms), the audio signal can be delayed to ensure the audiovisual synchronization (oral synchronization). In addition, high -resolution delay (0.1 ms) can make the propagation delay balanced, and can also add delay to two inputs (digital and simulation).
Pioneer is the world’s pioneer of audiovisual entertainment and disc technology. It uses advanced technology to invest in home audio and video, automobile audio and video, and commercial markets to show the enthusiasm of consumers and the emphasis on entertainment. Pioneer originated in 1938 and focused on speaker manufacturing and sales. “Let more people hear more moved sounds” is the concept of founder Mr. Song Yuanwang founded a pioneer company. Pioneer Electronics (China) Investment Co., Ltd. was established by the Pioneer Co., Ltd. on April 16, 2001. It is one of the 14 companies invested in the field of sales, R & D, and production by the Japanese Pioneer Co., Ltd. in mainland China and Hong Kong.
The group philosophy inherited by the Pioneer Group-shared movement with more people. Pioneer believes that the word moves this word conveys their experience in sharing emotions with customers, rather than simply providing hardware products. Pioneer became the first company in the world to develop laser laser visual disks (LD) in 1980. At the same time, it led a big step in the technology of entertainment discs. The pioneer of display technology (OEL), plasma TV, and DVD burning machine (DVD-RW); therefore, Pioneer is regarded as a fusion sound and video technology to become an innovator of audio and video entertainment.
Pioneer published the new slogan “Sound. Vision. Soul” in July 2001 to share and share the promise of the audio and video entertainment and enhance the soul. Sound refers to the origin of Pioneer -the audio career, while also representing Pioneer as a sound -operated enterprise. Vision refers to the image business with DVD and new generation display-plasma TV as its core, and also expresses Pioneer’s vision and determination to the future. Soul emphasizes that Pioneer’s determination to sublimate video entertainment, Pioneer is convinced that the power of sound and video will bring people to touch the depths of the soul. Pioneer believes that entertainment is a kind of power that can deeply touch people’s hearts by virtue of sound and image. This article will introduce some of the source speakers in the audio career of Pioneer Group: DM, VM series with source monitor listening speakers.
The DM series has two products: DM-40 and DM-50. Compact DM-40 desktop monitoring speakers can provide high-quality sound quality at home. This speaker inherits the advantages of the S-DJX series and Pro Audio speaker series of Pioneer’s professional S-DJX series, including the front bass reflex system, which is used to achieve rich and tight basss. At the same time, it is equipped with DECO technology Sound position. The front -load bass reflection system: 4 -inch bass speakers output strong and impactful basss from the front, while the grooves on the pipeline can reduce air friction. In this case, even if it is placed on the wall, you can feel the tight bass. 3D stereo: DM-40’s ¾ ¾ 3 3 3 3 is equipped with a Deco convex loudspeaker, which can transmit high frequency in all directions. Whether you are sitting or standing, you can enjoy a wide best listening position and 3D stereo. Time alignment: AB -class putter can provide low distortion and crisp sound. In addition, high -frequency speakers and bass speakers are perfectly combined to eliminate cross -crossing and ensure a balanced response at different frequencies.
DM-50D has upgraded the basic performance of “DM-40”. The sound quality is easy to listen to the smoothness and balance of the details, and the presence and dynamic low-frequency performance. When carrying out DJ and music production, you can switch the DJ mode and the product mode by operating a knob based on the use and environment to easily change the sound quality. In addition, the TRS terminal is added to improve connection. Through a 5 -inch bass speaker, even if the volume is increased, there will be no deviation even if the sound is not available. The D -level amplifier is equipped with a D -Class amplifier that can inhibit sound deviation, achieve stronger sound and balanced sound, and a high -processing 96kHz sampling DSP.
The upgraded version of the DECO diffusion tablet can be evolved through the expansion sound-oriented DECO technology in the treble speaker. Compared with the previous DM-40, it can achieve a larger range and a three-dimensional sense of the best range and a three-dimensional sense. Audiovisual. The time -proof aspects of the 5 -inch bass speaker and the treble speaker are adjusted to reduce the status deviation between the audio frequency and achieve clear correct audio -visual. Compared with DM-40, the DM-50 is also equipped with Pioneer’s unique Groove technology, which acts on the low-frequency pipeline opening part of DM-50. Essence The front of the shell is curved, which inhibits the excess sound interference of the surface of the shell, and achieves a larger high -frequency playback.
The VM series has three products: VM-50, VM-70, and VM-80. There are source supervisors to listen to the speaker VM series to achieve bright and smooth transition to low -frequency bass sound quality. The VM series inherits the well-received “S-DJ X series”, which provides a unique sense of presence of top DJ equipment brands, like being in a club, and a sound environment for DJ operations suitable for dance music. All models are equipped with high -efficiency and low -deviation D -class amplifiers. DSP processing is performed by the sound signal of 96kHz at a high code rate of 96kHz, which can accurately reproduce large -scale signals, inhibit sound deviation, and achieve a stronger and powerful sound. In addition, the thick -diversion of the thick aluminum -made front of 4mm is better, reducing unnecessary vibration, and showing accurate sounds. The seismic membrane of Fangfang polyamide fiber -fiber -fiber mosaic speakers decreased by 30%compared with the previous models.
As a result, whether it is a small sound or a large volume, it can achieve rapid, accurate and rich medium -sized performance in response. In addition, the vortex bus accelerator consolidates the air flow with its unique bump structure, suppressing unnecessary vibration to minimize, thereby achieving a rapid and dynamic bass performance with rapid response. And these are designed at the back -end mouth, which can faithfully reproduce the sound of high purity and musical instruments. By using an exclusive design fixed -point speaker, the mid -sound performance is more dynamic. No matter which space is, a uniform and natural sound can be emitted. The width of the high voice speakers is the same as the cone -shaped part of the bass speaker, so as to ensure that the range of bass and tweeter is smoother.
DSP Control function: The setting of the VM series speakers makes a natural sound with a gentle sound balance. The reactions of different frequency sound characteristics are different due to the placed room. Therefore, the DSP Control function can be used to make the output micro -adjustment according to the environment to achieve the best sound. There are low -frequency and high -frequency independent EQ knobs in the rear. According to the environment and use of the room, select the favorite audio balance from the four frequency characteristics. It can be used simply and intuitively to use it. For example, when the DJ operation, the bass is enhanced to realize the sense of presence of the club, adjust it to a gentle sound when making music, and accurately hear the sound structure. The actual operation is divided into LOW EQ: Use it to adjust the bass according to the placement venue and purpose. L1: Room 1 -Inhibit the sound quality of the bass.
It is suitable for being placed nearby, excessive bass, or do not want to produce too much bass late at night. L2: Flat -faithful reproduction of the gentle frequency characteristics of the sound source itself. L3: Room 2 -A sound quality with more bass. Suitable for rooms with less echo and insufficient bass. L4: Club Bass -Reappear Bass Club’s shocking bass. It is suitable for insufficient bass; High EQ: Used to adjust the treble according to the placement venue and purpose. H1: Room 1 -A small amount of the sound quality of the treble. Suitable for the dynamic and excessive treble of the room. H2: FLAT -faithful reproduction of the gentle frequency characteristics of the sound source itself. H3: Room 2 -There are more trebles with bright and broad space. Suitable for insufficient treble. H4: Bright Treble -You can clearly hear the sound of the instrument. For example, you can clearly hear the outline of guitar or copper, trumpet, etc.
Note: For details of this article, you can see the March of 2022, March 2022.