Because the new cards are all high-end products, the impact on the mid-end market is relatively small, but the overall shape is actually not optimistic. At present, RTX 2060/2060S has been discontinued, and it is difficult to find the spot in e-commerce. Although GTX 16 series has not been discontinued, time is running out. At present, many models of products are relatively easy to buy, but the prices are generally rising. For example, GTX 1660S, which was very popular before, was generally around 1699 yuan in the middle of the year, and now it has risen to around 2,000 yuan. The price of GTX 1650S was mostly 1299 yuan, but now it is almost 1599 yuan.
It can be said that after the general price increase, the competitiveness of these thousand yuan dessert cards based on cost performance has dropped a lot. It is reported that NVIDIA will release RTX 3060 on June 5438+ 10 next year. I believe that RTX 3050 and other products that are more suitable for mainstream users will not be too far away. Personally, I still think it is not cost-effective to buy these graphics cards now. At this time, you might as well be a party waiting for new products to go on the market, or collect a second-hand product such as idle fish, which is more reasonable to use first.
On the whole acoustic structure, KSD2030 adopts two 6.5-inch (17cm) mid-bass speaker units with a 1 inch (2.54cm) tweeter unit sandwiched between them, forming a D'Appolito arrangement. This structure is named after the theory put forward by Joseph D'Appolito, a master speaker designer. Now this structure is widely used in the design of speakers, which is also commonly known as "dumbbell type". The horn unit is not simply installed on the front baffle, but a thick front baffle is used to process a waveguide similar to a horn, which improves the working efficiency of the unit and enables the compact box to obtain the bass expansion performance of 38Hz. This design is different from B&; M's big floor box BM35 is exactly the same. The radian around the treble waveguide hole and the panel is designed by digital acoustic calculation, which can condense the treble monomer and the direction of sound diffusion, and the radian at the edge of the panel can avoid unnecessary reflection.
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It's time to reverse the cognition of monitoring speakers-KS Digital 2030 active landing box in Germany
The new stereo
I listened to two pairs of B&; After M's big speaker floor boxes (BM80, BM35), I chose a pair of KSD brand 2030 floor boxes, which are small and suitable for ordinary families. I hope to know what level this professional monitoring brand can reach for the speakers produced in the home market.
That's a lot of money
What brand is KSD? If this question is answered by the sound engineer, there should be no one who doesn't know it, but if you ask the sound lovers, it is estimated that few people can answer it. I'm ashamed to say that I first learned about this brand on 20 15 when I interviewed the recording engineer, Uncle Luo. In his studio, I saw a pair of C5 (coaxial 5-inch) active speakers with only one coaxial speaker unit. Uncle Luo introduced that this is Germany's KSD, and the monitoring of human voice is very accurate.
Today's German KSD and B&; M belongs to the same parent company, or is a sibling of the same family. B& amp； M was founded in 1973 by Wolfgang Backes and Friedrich Muller, both of whom graduated from the University of Saarbrü cken, the former majoring in computer science and the latter majoring in physics. Because they have the same idea of real electroacoustic playback, they are quite dissatisfied with the design of traditional passive speakers. Because of the existence of passive frequency divider, a lot of information is lost and the phase is distorted, so many problems are difficult to perfect. This prompted them to develop active active sound splitter speakers and release Monitor 3 speakers, which won unanimous praise, thus vigorously promoting the trend of active speakers.
▲ Compared with the huge BM80 speaker in the back, the KSD2030 in the front is very small, but in fact, this volume is just suitable for the home environment of about 20-30 square meters.
And b &；; M and professional b & ks have always been brothers. In fact, b&; M's business scope is very huge, and several sub-brands have been derived under the name KS: KS Digital is a professional recording studio product line, KS Audio is a PA product line, KSD is the latest home theater product line, and several brands enjoy technical resources, but the product design is targeted and targeted. 1995, Johannes Siegler showed the world's first application of audio DSP, and also published FIRTEC, the world's first application of FIR controller technology, becoming a pioneer of FIR technology. Prior to this, Siegle was a designer and sound engineer of DSP digital signal processor. Siegle became B&; M, combining DSP technology with B&; M actively designed and launched a new generation of creative speaker products. He redesigned the product line, and launched SL series in 2002 and BM50 in 2005. The appearance, structure and unit use have been completely changed, even the old B&; The shadow of KSD factory is located in Saarbrü cken, Germany. Each speaker produced is hand-made, and each speaker is linearized by strict measurement (IFM) frequency and phase, thus ensuring the accurate reproduction of music signals.
▲ This is a typical arrangement of D'Appolito horn units. KSD processes the thick front baffle horn opening into the shape of acoustic wave guide, which is helpful to control the acoustic wave diffusion.
In the cognition of many audio lovers, it has always been stubbornly believed that monitoring brand speakers is only a tool for music producers and is not suitable for music appreciation, but this is not the case. In Germany, KS represents a very high-end brand, and many famous recording studios and theaters are using its products. At the same time, KS is a pioneer of active speakers and has been focusing on the production of active speakers. Its active DSP speaker is regarded as "the Mercedes-Benz of speaker technology". In fact, many people's understanding of KS also started from KS Digital's coaxial speakers. The consistent evaluation at home and abroad is that the intermediate frequency positioning is accurate, the lines are clear and accurate, the sound details of each instrument can be heard clearly, and the reproduction of human voice is even better. Therefore, it was once the best choice for recording studios to monitor human voice effects. KS has always been committed to digital technology as one of the key technologies in the design of monitoring speakers. Digital technology is used to measure each speaker unit to ensure the accuracy and consistency of frequency response of each unit, and then the patented technology is calibrated by FIRTEC digital filtering system with embedded DSP chip to ensure the linearity of frequency response curve of monitoring box, and the signal is processed digitally. Both internal equalization and external controller use digital signals.
Compact chassis with embedded DSP active technology
KSD2030' s box looks a bit special. Although the overall design is floor-standing household, many details show the unique idea of the factory. It looks like a square box, but the bottom is deeper and the bottom plate presents a certain arc. The elevation angle of the speaker can be adjusted to a certain angle through the arc-shaped stainless steel base. This is a very clever design. By adjusting the elevation angle, the speaker can adapt to more listening spaces with different acoustic characteristics and placement conditions, which greatly improves the playability. On the other hand, the box appearance treatment of KSD2030 only provides black and white matte texture surface treatment, even if it is used in the cinema environment, it will not cause the trouble of reflection.
▲ The back plate of the box is locked with screws, and there are low-frequency reverse holes on it, so it is necessary to pay attention to the distance from the speaker to the back wall when setting.
On the whole acoustic structure, KSD2030 adopts two 6.5-inch (17cm) mid-bass speaker units with a 1 inch (2.54cm) tweeter unit sandwiched between them, forming a D'Appolito arrangement. This structure is named after the theory put forward by Joseph D'Appolito, a master speaker designer. Now this structure is widely used in the design of speakers, which is also commonly known as "dumbbell type". The horn unit is not simply installed on the front baffle, but a thick front baffle is used to process a waveguide similar to a horn, which improves the working efficiency of the unit and enables the compact box to obtain the bass expansion performance of 38Hz. This design is different from B&; M's big floor box BM35 is exactly the same. The radian around the treble waveguide hole and the panel is designed by digital acoustic calculation, which can condense the treble monomer and the direction of sound diffusion, and the radian at the edge of the panel can avoid unnecessary reflection.
Almost all sounds in nature come from one point. When you speak, you make a sound from your mouth. When you play the violin, you make sounds from that violin. When you clap your hands, you make a sound from your palm. However, if asymmetric speaker units are arranged, the acoustic axis of each speaker will hardly be concentrated on one point, so it is usually difficult to reproduce the state of natural sound with multiple units. D'Appolito arrangement is the structure closest to the principle of natural point sound source except coaxial and full-range speaker unit structure. The treble unit is placed between two bass units with equal distance, and the centers of the three units are on the same vertical line, simulating the coaxial sound mode. This arrangement can bring a wide horizontal diffusion and a narrow vertical diffusion, effectively reduce the reflected waves from the ceiling and floor, make the sound image more accurate and stable, make the dessert in the listening area (the emperor's position range) wider, and achieve the effect similar to a point sound source.