When it comes to the "loudness" of the speakers, many people seem to have a confused understanding of the concept. When it comes to volume, many musicians only consider the power and rated wattage of the speaker. In general, the more wattage does not mean the louder the loudness. But it is undeniable that Watt is still an important consideration, and the power of the speaker is also an important factor affecting the loudness of the speaker.
Decibel and volume level
Decibel ("dB" for short) is a unit of counting for the ratio between two numbers. Ok, I understand that many people are not very interested in this, so I will simplify things and try not to involve "mathematics". With regard to the logarithmic scale, you can't just understand it in the usual way—for example, if you double the number, it will increase, but it doesn't mean “doubleâ€. For example, 100dB is double the 50dB, but it does not mean that its "loudness" is "double" of 50dB. When it comes to "loudness", it involves the sound pressure level (also known as SPL), and a level increase of about 10 dB will make the sense of loudness "double". In other words, if a speaker that produces 90dB SPL is compared to a speaker that produces 100dB, most listeners will think that the second speaker has about twice the loudness of the first speaker.
Wattage, power and SPL
So how big a wattage will get double loudness? Let us assume that if there are two speakers, one is 10 watts and the second is 20 watts. A 20-watt power speaker has twice the wattage of another speaker, but after conversion, double the wattage will only increase the 3dB SPL. Remember, if you want to double the loudness of your speakers, you need to add 10dB to the speakers, and a 20-watt speaker is twice as large as a 10-watt speaker, but it doesn't double. Loudness. The same is true in high-powered devices, where a 100-watt speaker does not produce twice the "loudness" of a 50-watt speaker. Assuming the same speaker, it will only increase the loudness of 3dB. Although the volume change will be very obvious, it will never double the loudness.
Speaker sensitivity level
The speakers in the speakers also have specifications for sensitivity and performance - they convert the input electrical energy into acoustic energy. Dynamic moving coil speakers (which you can find in most guitar and bass speakers) are very inefficient, converting most of the input power into heat, not sound. Typically, the sensitivity of the speaker is measured in the anechoic chamber (no reflection, soundproof room) and is described by a unit/format like this:
90dB @ 1W/1m
Translated, it means "90 decibels (SPL) and 1 watt of power, the sound pressure level produced by a distance of one meter from the speaker is 90 decibels." The efficiency of the efficient speaker will be higher, and vice versa. The effect of the speaker will have less sensitivity. Efficient speakers will make your speakers louder.
Combine
Therefore, we assume that there is a speaker with a sensitivity of 90dB @ 1W / 1m and a power of up to 100W. If we adjust the power of the speaker to 1 watt, it will produce 90dB at a distance of 1 meter. If we adjust the power to 2 watts, then the SPL measurement will be 93dB. If we increase the power of the speaker to 10 watts, the SPL measurement will increase to 100 dB. At this time, the power of 1 watt is doubled compared to the previous one. So, in fact, they need more than 10 times the power to make us feel the loudness doubled. Since the speaker we imagined has a maximum power of 100 watts, we can double the volume again. In theory, a power of more than 100 watts will produce 110 dB SPL. 1 watt = 90 dB. 100 watts or more than 100 watts of power = 110 dB. This is a huge power increase, but you can only feel four times the volume level.
As you can see, if you want to get the "double" volume effect, you need to increase the power and the wattage of the speaker. Let us introduce the sensitivity/efficiency of the speaker into this formula. If we replace the 90dB @ 1W / 1m speaker with 100dB @ 1W / 1m, its digital change is very obvious. We know that an input power of 1 watt will give us 100 dB SPL. Remember, the first speaker requires 10 watts of power to reach the same volume! Therefore, installing an efficient speaker will give us a greater volume. Again, it also applies to the maximum power handling capability of all speakers. Assuming a 100dB @ 1W / 1m speaker capable of handling up to 100 watts, it can deliver up to 120dB SPL; while a 90dB @ 1W / 1m 100W speaker doubling volume has a maximum level of only 110dB SPL.
Speaker power + speaker efficiency and power handling capacity = maximum volume
So keep in mind that increasing the power of the speakers will make it louder, and increasing the sensitivity of the speakers will give the speakers more power in the available power range. Therefore, this also means that the "loudness" of any speaker can not be judged by only the wattage. You must know the power handling and sensitivity of the speakers, etc. These are important factors that can increase the loudness of your speakers. If your 15 watt speaker is equipped with a relatively inefficient speaker, but its loudness is enough to meet your requirements, then you don't have to buy a high wattage speaker - you only need to replace an efficient speaker, such as Electro- Voice EVM 12L (Figure 2), this will not only meet your volume requirements, but also eliminate the need to replace the entire speaker. Similarly, you may not need a 100-watt speaker; if you replace the 95dB @ 1W / 1m speaker in a 50-watt speaker with 101dB @ 1W / 1m, they have a very noticeable change in volume level, you need To accept.... In fact, when using inefficient speakers, 100 watts or even 50 watts are louder.
Of course, if you really want to make the speakers louder, then you need to have a speaker with high power, efficient speakers and power handling.
2.0mm (0.079") Pitch Pin Headers
2.0mm pin headers are board-to-board or PCB to PCB Connectors rated for 250VAC and an industry-leading current of 3.0A. Antenk offers numerous configurations for this pin header. Designed for low-profile applications, this pin header is made from high-temperature thermoplastic and is offered with several means of connections and mounting styles such as through-hole (THM) or surface mount (SMT) and can be in vertical (straight), elevated or at a right angle configuration/orientation
Pin header customization is also available upon your request. The 2.0mm pitch pin header is highly recommendable for signal and low power PC board connections when space is at a premium and when 1.0mm and 1.27mm pitch headers cannot dissipate the required current. In addition, the 2.0mm pitch pin header holds an excellent mating quality that fits with various types of female connectors.
Automotive, Heavy Duty Military and Marine
2.0mm pitch pin headers are for not only suitable for densely packed equipment requiring weight reduction and downsizing but also for automotive connections, built to be robust in tough and harsh conditions.
Battery Connections
Rechargeable battery packs, battery balancers, battery eliminator circuits. Battery connections rely on the ability of the current to pass reliable and solid current. This prevents overheating in the circuit and voltage drop.
Medical Diagnostic and Monitoring equipment
Communications: Telecoms and Datacoms
Industrial and Automotive Control and Test
2.0mm pitch pin (male) headers are offered in either Surface-mount or Through-hole mount termination. At one side of this pin header is a series of pins which can either be mounted and soldered directly onto the surface of the PCB (SMT) or placed into drilled holes on the PCB (THM).
Best used for high-reliability products that require stronger connections between layers.
Aerospace and military products are most likely to require this type of mounting as these products experience extreme accelerations, collisions, or high temperatures.
Useful in test and prototyping applications that sometimes require manual adjustments and replacements.
2.0mm vertical single row header, 2.0mm vertical dual row header, 2.0mm Elevated single row pin header, 2.0mm Elevated dual row pin Header, 2.0mm Right-angle single row header and 2.0mm Right-angle dual row header are some examples of Antenk products with through-hole mount type.
Surface-Mount
The most common electronic hardware requirements are SMT.
Essential in PCB design and manufacturing, having improved the quality and performance of PCBs overall.
Cost of processing and handling is reduced.
SMT components can be mounted on both side of the board.
Ability to fit a high number of small components on a PCB has allowed for much denser, higher performing, and smaller PCBs.
2.0mm Right-angle Dual Row pin header, 2.0mm SMT Single row pin header, 2.0mm SMT Dual row pin header and 2.0mm Elevated Dual Row Pin Header are Antenk`s SMT pin headers.
Soldering SMT pin connectors can be done at a maximum peak temperature of 260°C for maximum 60 seconds.
2.0mm pitch headers may be further classified into pin orientation as well, such as vertical or straight male header or right-angle male header.
Vertical or Straight Pin (Male) Header Orientation
One side of the series of pins is connected to PCB board in which the pins can be at a right-angle to the PCB surface (usually called "straight" or [vertical") or.
Right-Angle Pin (Male) Header Orientation
Parallel to the board's surface (referred to as "right-angle" pins).Each of these pin-types have different applications that fit with their specific configuration.
PCB Connector Stacking
Elevated Pin Header Orientation
Elevated pins aka Stacked Pins or Mezzanine are simply stacked pin headers providing an exact distance requirement between PCBs that optimizes electrical reliability and performance between PCB boards.
Profile Above PCB
This type of configuration is the most common way of connecting board-to-board by a connector. First, the stacking height is calculated from one board to another and measured from the printed circuit board face to its highest insulator point above the PCB.
Single, Dual, Triple and Four Row Number of Rows
For a 2.0mm straight or vertical male pin header, the standard number of rows that Antenk offers ranges from 1 to 4 rows. However, customization can be available if n number of rows is needed by the customer. Also, the number of contacts for the single row is about 2-40 pins. For dual row, the number contacts may vary from 2-80 pins. For triple row, it`s 2-120 pins, while for four-row, it`s 2-160 pins.
Pin Material
The pins of the connector have been designed with copper alloy. With customer`s demand the pins can be made gold plated.
Breakaway design
The pin headers are also equipped with a breakaway design making them fully compatible with their female receptacles.
Custom 2.0mm Pitch Pin Headers
Customizable 2.0 mm pitch pin headers are also available, making your manufacturing process way faster as the pins are already inserted in the headers, insulator height is made at the right size and the accurate pin length you require is followed.
Parts are made using semi-automated manufacturing processes that ensure both precision and delicacy in handling the headers before packaging on tape and reel.
Tape and Reel Packaging for SMT Components
Antenk's SMT headers are offered with customizable mating pin lengths, in which each series has multiple number of of circuits, summing up to a thousand individual part number combinations per connector series.
The tape and reel carrier strip ensures that the headers are packaged within accurately sized cavities for its height, width and depth, securing the headers from the environment and maintaining consistent position during transportation.
Antenk also offer a range of custom Tape and reel carrier strip packaging cavities.
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ShenZhen Antenk Electronics Co,Ltd , https://www.antenkelec.com