How can you use multiple speakers to a home theater or stereo amplifier

Finally, it is easy, but before explaining the process I believe it is necessary to issue a warning. Multiple sets of speakers can generally not connected directly to a standard audio amplifier, without any kind of device impedance matching. In relation to these people who want the speakers in several rooms simultaneously (audio distribution could run). If multiple sets of speakers are powered from a set of speaker terminals of the amplifier is generally overheat and shuts down, andMay impact the final stage (see Note 1). These comments do not apply to AP style amplifier with 25 or 70 volt outputs which require special speakers with transformers.

The right solution is to use an impedance matching speaker selector with the protection enabled, or use the impedance matching in wall volume control. Note the stress in the sentence above. Since most of selectors, speakers are manufactured with a dangerous element: a button to turn off directly opposite toProtection. When the switch on the back to prevent accidental switching of the protection of pregnant, it would be much better. If the protection is turned off accidentally shut down during the execution of multiple pairs of speakers to the amplifier is, can blow fuses, amplifiers, and could very well damage the output stage. There is really only 2 reasons to turn this is the more relevant that the adjustment of impedance volume controls are used on all pairs of speakers. The otherReason would be if only one pair of running speakers, so it does not require impedance matching. In this case, though, so that the security only a very small difference in the tone to be activated, so why not leave it on?

Remember that he him a pair of terminals (usually red and black amplifier) on. Do not use any amp amplifier at several places around a room on the middle piece on the back, etc. This is the way a feedSurround receiver delivers the sound, as you can end up only with voice in a room and music in another! The correct plug for a surround receiver, surround sound in the main hall and the sound speakers left and right clients distributed. My recommendation for connecting a surround receiver is as follows. Run selector front left and right outputs of the amplifier. Plug your front left and right speakers to the first switchSpeaker selector. You need to surround system back into balance with the pink noise test as a selector speaker will reduce the output on the left and right speakers for a small amount. This allows you, the keynote speaker and others on the speaker selector the game without having to connect more than others. If you have speaker selector volume control, you must make sure that if it is your surround system for movies of the volume of the same parameter wasWhen the pink noise will be tested. You can catch the selector speaker of the 'b' button Speaker of the device, is the balance between volume and the main left and right front speakers and the rest of the Senate, no problem.

Another variation is to use an amplifier with speaker output for zone 2, 3, etc. are set up to 1 pair of speaker drive, and should be used with impedance matching when other couples. The output of the region, and so allow a second (or third) source, such as CDa game and a radio in another.

An impedance matching speaker selector provides multiple outputs from one input, and protects the amplifier from damage. Speaker Selectors with 4-12 coming. As long as your amplifier is powerful enough to push you so many groups of speakers you want. Simply connect the speaker switch on your 'A' (or 'B') and gives the rest of the speakers on the speaker selector. You can buy speaker selectors with volume controls for each speaker.Another option is the wall impedance matching volume control, do not require a selector speaker. Most of them will be set through jumpers during installation and provides a good match. If you want to run some speakers, the speakers or volume control selectors are (usually 12 pairs max. Dependent) from the hardware, you probably have to meet a second amplifier to the second set of volume control (or switch you made to speaker).

So, what is the impedance and impedance matching?(Warning: semi-technical material to come)

The signal of the music on the speakers is as AC (or AC), because it varies the polarity and voltage. This is in connection with a battery, for example, which generates a constant or DC. You can current image as the amount of water flowing in a pipe (wire) and the tension that the water pressure. The AC can be used as a stream, rotates the direction and runs like a constant flow think in one direction. TheAnalogy is not exact, but close enough to get a picture of what happens to. Standard house current U.S. reverses direction (polarity) in an interval (or frequency) of 60 times per second, measures up to 60 Hz (Hertz). When you visit our website, you can use this book with explanatory graphics visit to see included.

Your speakers on a certain resistance to flow. Imagine the resistance as a constriction in the pipe, which restricts the flow. They have a DC resistance as the voice coilResistance and AC resistance as the impedance. Resistance and impedance values measured in ohms. Impedance is a complex sum of the current resistance will cause more resistance to various frequencies of AC capacitance and inductance) (normal properties of electrical and electronic equipment. It is generally for the players that the impedance and is given reference to certain frequencies. But imagine, just as the AC resistance for practical purposes. It is generally estimated to be8 or 4 ohms. Most home amplifiers prefer an impedance of 8 ohms. Every time when another speaker in parallel the impedance is reduced added. Other pipes together in order) connected the same pump, the pump appears to increase (the capacity of the pump limit. The amplifier is the pump. Two 8 ohm speakers reduce the impedance of 4 ohms, four 8 ohm speakers reduce the impedance of 2 ohms, and so on.

An amplifier is waiting (need) a certainResistance to current flow. The greater the impedance the more current in the output stage of a typical amplifier. This is usually directly by a transistor (or other amplification device) and damage to the transistor or protection resistors in the power amplifier. If you are lucky it did not blow a fuse amp. The moral of this story is always an impedance matching speaker selector (or control volume) and your amplifier will be used over a load impedance seen safe.

1(Note)

Why the sudden exit of the amplifier stage? This is due to the nature of a typical amplifier. It must first be clear that the amplifier is not really the input signal is greater. Instead it involves a larger copy new) (plus electricity and excitement of the original signal and is on the speakers. He made the copy of the power supply, which comes from the sector from the outlet. This tension must be first converted into direct current. If not actually workedHum amplifier (because he does not know) the words. The amplifier controls the voltage by a kind of valve that controls the output voltage and current. These valves (transistors) are the usual channels of May, but will be integrated vacuum tubes or other devices are controlled by the input signal. In response to the input signal may increase the device, more or less electricity (and / or voltage) through the exit into an exact (hopefully) replica of the input signal. InTo the majority of the speakers are working well with an amplifier, it needs a low output impedance (see text above for a discussion) on the impedance. If the output impedance is too high, the frequency varies with the speaker impedance. This means that some sounds are accentuated, and some went from the height they should be, and this effect is from any other set of speakers. In practice, this means that the circuit with the most commonly usedDesign when the transistor is) (or other device that fully lit, it needs to be spending almost all deliveries are currently available through them. This is the hard part. The current flow is largely determined by the impedance of the connected speakers. Most amplifiers are designed to work with 8 ohm speakers, May 4 ohms work relatively well. Some so-called high power amplifiers May good results in 1 ohm. In other words, the amplifiers are designed so that when the output transistors existfull current and voltage transformers can take them, they work in an expected value of the impedance. If the impedance (AC resistance) of the connected speakers is too low, more electricity is now through the device gain, it can take a pass. It on fire, or blows a fuse or burn emitter resistors, or other type of damage. Fusing often do not respond quickly enough to save the route. So, why not all systems operate at low impedance design? Without going too farIT, which can lead to huge cost increases. For example, for the theoretically ideal performance in most speaker systems today, an amplifier should double its power for each halving of impedance. So for 100 watts into 8 ohms, it should make 200 in 4 ohms, 400 into 2 ohms, and 800 (in ohms Remember, it is theoretically ideal and practically can not perform effective doubling amplifier power for a halving of the impedance load). Most decent amplifiers today are far less than, 5Ohm output impedance behavior, with the speakers, the drops can be low impedances to certain frequencies. Our theoretical amps, if it should work out on OHM .5 A clear about the capacity to 1600 watts per channel, without damaging anything (in the amp! Have). As the cost of a good amp with this kind of capacity can imagine, is considerable. Now remember, do the following: The average user of this massive amp with 8 ohm speakers will see an average production100 watts RMS (RMS means Root Mean Square, and is essentially a measure of the average performance, which is about 70 percent of peak power). For most users this would be the price for the amplifier to achieve. Some amplifiers are designed such standards, for the reason that there are speakers which are so deep as the ohm, which sound much better when a high current amplifier driven. An example is the Krell Evolution One, which is a monoblock. This means that you need two for stereo. TheyIt costs only about $ 25,000 dollars. For those who might believe that I'm doing on this finding, the use of Google to the prices on Krell monoblocks.

Copyright © 2006-2008 Business Seafawn, LLC

All information on this page may be as long as the link below copy is included in the price.

Buying and home theater speaker accessories

Related posts:

1. The amplifier or home theater preamp necessary? There are many lesser known functions that are essential...
2. The elimination of this terrible hum of your home theater speakers You have all heard that dreaded 60Hz hum from...
3. Home Theater Setup (Surround Sound Speaker Setup) I assume you have to start a surround sound...
4. Best home theater speakers and subwoofer Types Can now take a decision on the best home...
5. Some tips to help you the best wireless speakers It is important to decide not only for wireless...