1. Test the quality of low frequencies
The low frequencies produced by inferior speakers can be astounding, but they are completely bloated, lacking in layering and solidity. (The low frequency that we usually say is unclear.) The good low frequency should be clean and bright, the layers are distinct, and it will not drag the water, and the soul will not be scattered, even if the various low-frequency instruments such as the size of drums, bass guitar and piano bass, Can be easily distinguished. So don't be fooled by the low-frequency sense. The inferior low-frequency is not as comfortable as the clean sound. This is the low-frequency sound we want. But it can't be generalized. For example, some of them are part of the extremely low frequency that the sound engineer added during the recording. The loose tube of the instrument can reach the extremely low frequency of 18HZ (Hertz). 2. Test the IF vocal
Vocals are the most commonly heard voices. The pros and cons are not difficult to detect. Pay attention to whether the vocals have unusual nasal sounds or the feeling of being snorted. (The speaker is inside the door, etc.) Some of the "box sounds" of the speakers (in the case where the doors are not handled, for example, without sound insulation) will also greatly interfere with the intermediate frequency, making the sound of this frequency band unclear. IF sound is more serious than other frequencies, because most of the audible frequencies, or the frequency of the music, are concentrated in the mid-range, which is a replay for almost all types of music. Obstacles.
3. Test high frequency flexibility
Inferior high-frequency is squeaky in the ear, listening to people with a splitting headache, in extreme cases the violin or soprano's melody becomes the sharp noise of the brakes. Similarly, different instruments in the treble produce different textures, and good treble can be distinguished. The high frequency of the superior and inferior level can even distinguish the different phonographs played by two different woods of different years. The easiest thing to master is that good treble is not audible and fearful, the pores are erected, and it is not too tiring, and it is soft and flexible, smooth and layered. Up to the highest point is still easy to hear but does not produce accent (of course not based on the recording of the singer)
4. Test high volume and sound field image
Some speakers are stable at low volume, but they are distorted when the volume is raised to an index, or “shootingâ€, and various non-recorded music signals appear. (Of course, the volume is safe at 12 o'clock. , LEVEL). Specifically, if the orchestra is one of the favorite, you must pass this level. The standard-compliant speakers make the sound out of the box to a certain extent, creating a clear sound field and image, showing the position and texture of the different instruments, and having sufficient diffusion to grow, wide and high audio space. The mute and the tail should be clearly heard, and in the case of large volume and "big burst" without distortion, the vocals and instrumental sounds will not be entangled. The high-quality replay can show a rich sense of music and air, and the bounce of the notes, like the clouds and see the sky, showing the whole sequence of audio and video. More directly, it will not be exhausting when you listen for a long time.
Antenk DIN41612 Connectors are a versatile two piece PCB connector set with feaures useful for many applications including connections for plug-in card and back-panel wiring, PCB to PCB attachment and peripheral connections for external interfaces. Features include a multitude of body sizes and styles with options that include selective contact loading, make and break contacts, contact lead length choices and contact plating variations each in .100" [2.54mm] or .200" [5.08mm] centerline spacing.
The DIN 41612 standard covers a series of two-piece backplane connectors widely used in rack-based telecommunication, computing, process control, medical, industrial automation, test and measurement and military/aerospace systems where long-term reliability is required. They consist of one to three rows of contacts in combinations of 16, 32, 48, 64, or 96 contacts on a 0.1-inch (2.54 mm) grid pitch. The 3 rows are labelled a, b and c and connectors up to 64 way if using a 96 way body can use either rows a+b or a+c. DIN 41612 Signal connectors can be rated to 1.5 amps per signal pin, at 500 volts, although these figures may be de-rated according to safety requirements or environmental conditions. Several hybrid power and coaxial configurations are available that can handle up to 5.6A or even 15A. This wealth of variations explains the very wide range of applications that they`re put to. For over 30 years these DIN 41612 `Euro Card` connectors to IEC 60603-2 have offered a highly reliable system for board interconnects. Precision contact density, low mating forces, a two piece protective design and many contact termination styles offer unlimited design opportunities. Termination methods include – straight PC, solder eyelet, wire wrap, crimp and [press fit" terminals. Insertion and removal force are controlled, and three durability grades are available. Standardisation of the connectors is a prerequisite for open systems, where users expect components from different suppliers to operate together; ept and Conec DIN 41612 are therefore fully intermateable with all other similarly compliant products from other manufacturers like Harting, Erni, Hirose and TE Connectivity, etc.
The most common connector in the DIN product line is type C, which is widely used in VMEbus systems, the DIN 41612 standard has been upgraded to meet international standards IEC 60603-2 and EN 60603-2. In the past, ept used a comb supported press-fit tool for their type C and B press-fit female connectors. To be more competitive, ept has changed to flat-rock technology (just a flat piece of steel pushed on the top of the connector) as used by many other manufacturers.
DIN 41612 Connectors are widely used in rack-based electrical systems. The standard performance of these connectors is a 2 A per pin current carrying capacity and 500 V working voltage. Both figures may be variable due to safety and environmental conditions.
Types
Number of contacts varies
Many variations of housing material, including different types of metal and plastic
Both angled and straight versions
Male and female
C,R,B,Q Type DIN41612 Connectors
Half C, R, B & Q Type DIN41612 Connectors
1/3 C,R, B & Q Type DIN41612 Connectors
H, F, H+F & M type DIN41612 Connectors
IDC Type DIN41612 Connectors
Female Cable Connector
High Pin Count DIN41612 Connectors
Shroud DIN41612 Connectors
Features and Benefits of Din41612 Connector:
• Indirect mating (male/female)
• Automated production processes
• Continuous quality assurance
• 3-160 contacts
• Complete interconnection system
• Numerous interface connectors
• A wide variety of hoods
• Many termination technologies provide for the lowest installed cost
• Contacts selectively gold-plated
• Tinned terminations for increased solderability
Uses
The primary use of DIN 41612 connectors are PCB Connectors and motherboards, the main acceptance would be their board to board reliable connections.
Applications of Din41612 Connector:
Applications
• Data centers
• Storage
• Servers
• Base stations
• Telecommunications equipment
• Backplane and motherboard assemblies
• Switching systems
• Modular rack systems
• Power automation
• Distributed control systems in
industrial control
• Programmable logic controllers (PLC)
• Robotics
• Test and lab equipment
• Energy distribution
• Monitoring equipment
This is not a definitive list of applications for this product. It represents some of the more common uses.
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