【 Weak current College 】 fuse in the use of sound

On some needed to buy relatively expensive electronic limiter, you can try to use a standard AGC fuse to protect your speakers. AGC fuse those internal metal, ends with metal caps small glass tube. While electronic limiter is more advanced, it can "read" the content of an audio signal, the limiter of creation and the content of the signals in accordance with the need to protect the speakers. In comparison, the fuse is a relatively stupid devices. They are on the current and one fixed time constant response (for example: fast current or slow currents).
You need to do work
Here comes to fuse the hardware can very simply from RadioShack or other electronic components supply sources. You need to find the AGC fuse holder, fuse and take some artificial. A good AGC fuse holder should have that kind of block type. It's two "U"-shaped metal card and can be used to stuck in its previous fuse. There is another relatively slight narrowly AGC fuse holder that is an embedded with like pig tail-like wire retainer. This type of fixation is generally used in automobile aftermarket electronic component, you may be in the auto parts supplier found. The third option is that fixed on the back is equipped with a removable cap mosaic plate fixation, in many electronic devices can see such a fixation. They can be placed in the vast majority of Jack Panel, and makes all the connections are done internally. The capacity of its current capacity is perfectly fine. Any one can provide guitar amplifier stores will have this fixed.
AGC fuse often are more packed up together to sell, so naturally you "forced" into buying spare parts!
Installing fuse holder
The fuse holder installed in one convenient place. You can set the fixed installation in the speakers on the back of the input panel recessed, facing the back of the grid, the internal loudspeaker cabinet, or the location of the amplifier output. Remember, if a fuse is burnt, you must be able to easily replace one, but sometimes you need to act quickly (for example, in a performance of the process).
Regardless of the wire is to be received on or direct sound received Horn, fuse holder must press series welding. As for the end is the cathode or anode wire that is not important. Also, the fuse and it's fixed for there is no polarity. If you cannot use the welding method, then you should choose with conductor connection bolts embedded fixer, of course, this is not the best way.
Fuse in protecting what
Protection of an inner divider speakers the best approach is to fuse the divider in front of current insurance tube should follow each numerical sums for the Horn. This requires that the speakers are turned on and access to each of the speakers on the construction of the wire. If you choose to fuse holder on the outside of the box, then you may need to extend the speaker wires. You can wire up the holes from the body of a received either from the input panel wear out to you want to place the fuse holder in place. You must be this small hole closed to avoid wire around the air flow and leak. In this case you'd better be able to use the embedded form factors of holder, so that you can avoid the problem of sealing body and makes the skin more beautiful with speakers. Usually when you want to use a fiber gasket used to seal the hole is completed.
Of course for a multi-channel speaker system you can also use a signal insurance, to avoid for each loudspeaker installation of insurance work, however, such protection would not be so precise. For multilayer amplification system, you must have for every loudspeaker installed fuse.
Insurance choices
Now the only remaining problem is to choose what type and how much rated amperage fuse. If you are in for the entire system installed fuse, you should use fast current fuse. If you are a single horn installed fuse, it should be the treble (compression) drive select fast current fuse, tapered speaker select slow current fuse. This is because the drive than treble cone loudspeaker for instantaneous excessive current have a certain tolerance.
You have to calculate and to determine the energy ratio. RMS will give more protection, but may also be very easy to burn. If the audio content will not be very full bass, then you can safely use the ratio of energy, which is usually twice the RMS ratio.
You can use the following formula to calculate a numerical rating of insurance:
Amps = squareroot (watts/Ohms) (power/impedance after square)
For example: If a speaker (or speaker) of power is the 300 Watt (RMS or long power), the nominal impedance of 8 Ohms. Then
Amps=squareroot(300/8)
Amps=squareroot(37.5)
Amps=6.1
This numerical rating of insurance should be identified as 6 amps. Once the value of more than 3 amps, then you will be very difficult to find in a 1/4 amperes for the change of insurance, so you should use this number of recent fuse: use more than this number of fuse relatively less insurance, while the use of numerical base than this fuse is more conservative. If you want to install the entire system from the beginning, choose use speaker's RMS ratio. When you find that your insurance will be very easy to burn and you're sure you do not have excessive driving your system, you can swap the values higher than 1/2-amp fuse.
If you have a parallel in the two speakers, for example, two bass Horn, and when you want to use for both of them with a fuse, then you have to be represented by a single horn calculated rated insurance value doubled. If two Horn-line,Then use by a single horn calculated rated insurance value.