I believe the ohm meter will read about 90% of the true ac impedance.
Yes, you can safely use a 4 ohm amp with one 8 ohm speaker, but you will not achieve full power. The 4 ohm amp is designed to supply a certain voltage into a 4 ohm speaker. Supplying that same voltage to an 8 ohm speaker will result in half the power, or -3dB. For maximum power, use a 4 ohm speaker, or two 8 ohm speakers in parallel.
Yes. As long as the speaker impedance is higher than the minimum rating for the amplifier, you are OK.
Its not recommended. A four ohm speaker cabinet can be changed into an eight ohm speaker cabinet, if you have enough speakers in the cabinet in parallel that can be rewired in series. Unless you have a high end cabinet, the likelihood of this is small.Two four ohm cabinets, however, in series will be eight ohms. Keep in mind, however, that doubling the resistance will halve the current, which will quarter the power. Also, changing the impedance of a speaker system will change the frequency response, because often the filters are tuned with resistors.
There is really no 4 ohm or 8 ohm amplifier on the market with an output impedance of 4 or 8 ohms for power matching. You will find there 0.4 ohm or less for voltage bridging. There is really no 4 ohm or 8 ohm amplifier on the market with an output impedance of 4 or 8 ohms for power matching. You will find there 0.4 ohm or less for voltage bridging.
If you connect four four-ohm speakers in parallel, the impedance will be equal to 1 ohm, and will allow the speakers to run at the advertised watt RMS. The equation is 1/(total impedance) = 1/(impedance 1) + 1/(impedance 2) and so on. Parallel is like this: Power source: + Speaker+: + + + + Speaker-: - - - - Power source: - However, usually if you hook up a 4 ohm speaker to a 1 ohm amplifier, it would still function it would simply not provide nearly as much wattage as it would have otherwise. Also, if your speakers are dual voice coil (like many subwoofers) you could use 2 4 ohm speakers, connecting the two voice coils on each speaker in parallel and then connecting the speakers themselves in parallel.
To safely connect a 16 ohm speaker to an 8 ohm amplifier without causing damage, you can use a series resistor in line with the speaker to match the impedance. This resistor should have a value of 8 ohms to create a total impedance of 16 ohms when connected in series with the 16 ohm speaker. This will ensure that the speaker and amplifier are properly matched and protected from damage.
The impedance of the speaker does not determine its quality. Assuming that your amplifier can drive the 4 ohm speaker, you will notice that this speaker is louder than the 8 ohm one.
To safely connect a 16 ohm amp to an 8 ohm speaker without causing damage, you can use a series resistor to match the impedance. This resistor should have a value of 8 ohms to create a total impedance of 16 ohms when connected in series with the 8 ohm speaker. This will ensure that both the amp and the speaker are protected from damage.
take a 2 ohm bridge into 1 ohm
Study ohms law to get your head around it.
You can't change the ohm load of a speaker. What you can do, is get a second 8 ohm speaker to run with that speakers in series and you will get a total ohm load of 16 ohms.To run them in series, simply wire the positive terminal of one speaker to the negative of the other speaker. One speaker will have an open positive terminal which you wire to the positive terminal on the amp, and same goes for the negative on the other speaker (to the amp's negative terminal of course).
You "can" add a four ohm resistor in series with a four ohm speaker, and make it look like an eight ohm speaker, however, the frequency response will not be the same. It is better to use to correct speaker for the amplifier, or use two four ohm speakers in parallel. That resistors power rating must exceed the rating of the speaker. Half the from the amplifier will go to the speaker, while half will go to the resistor, making it get quite hot.
Yes, but it will not be as loud as it would have been had a 6 Ohm speaker been used. Byt the way, the word 'Ohm' is capitalized, because it was someone's name.
You cannot make a 16 ohm speaker into an 8 ohm speaker. You would need to replace the voice coil. You can, however, put two 16 ohm speakers in parallel, and the equivalent impedance would be 8 ohms. The only remaining issue is frequency response, and that's a factor of speaker and enclosure design, so best is to use the exact speaker as originally designed.
The recommended impedance matching between an 8 ohm amp and a 16 ohm speaker for optimal performance is to use a speaker with an impedance that is equal to or higher than the amp's impedance.
4 Ohms. Can use any standard 4 Ohm speaker as long as you don't chassis ground it.
The impedence of the speaker does not determine the placement. The sensitivity of the speaker is more important in determining the output level that the speaker will produce. Any pair of speakers can be used for front or rear left and right locations, but those with better bass response should be used in the front. Most amplifiers that are rated at an 8-ohm output will happily power a 6-ohm pair.