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A1: The output impedance of a power amplifier is always less than 0.1 ohms. There are no 4 ohm amplifiers on the market!

A2: I actually just bought a new car radio/CD player that specifically shows 4 ohm speakers on the sticker. It is designed to work optimally with 4 ohm speakers. If you use 8 ohm instead, it will work, but you will not get the full power output that is specified. The amp can only kick out so much voltage and so much amperage - if it is designed for 4 ohm speakers, and 200 watts (stereo, so 100 watts per speaker), it can supply 20 volts (P = V^2 / R). If you used 8 ohm speakers to this amplifier, each speaker would only get 50 watts powered at full output voltage.

Alternatively, if it is designed for 8 ohm speakers and 100 watts per speaker, it can provide 40 volts. If you used 4 ohm speakers instead, each speaker could be given 200 watts at 40 volts, resulting in severe overheating and damage to the amplifier.

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Will 8 ohm speaker work with 4 ohm bass guitar amplifier?

Yes. As long as the speaker impedance is higher than the minimum rating for the amplifier, you are OK.


Can a 8 ohm speaker replace a 6 ohm speaker?

You need to find out how many ohm's your deck is pushing out and make sure you have the right grade speaker wire so you don't under power the speakerRubbish. A "deck" doesn't "push out" ohms.An amplifier is designed to develop a stated power in a stated impedance, and that is based on the amplifier's ability to deliver current.An amplifier designed to deliver maximum output to a 6 ohm load can safely drive an 8 ohm one. But it will not be able to develop its maximum power.


What is affect of using a 3 ohm speaker with a 100 Watt amplifier?

Amplifier power and impedance are not related, although a lower impedance speaker will be louder. Most home stereos cannot drive loads below 4 ohms, however, so using this 3 ohm speaker with a home theater may cause the amp to go into protection mode or shut down completely. Check your owner's manual to see what impedance of speaker your receiver can safely drive.


Can you run 4 70w speakers on a 150w amp or will it blow?

It's entirely possible to use four 70W speakers with a 150W amplifier but the method will depend on the speakers and the amplifier specification. We will assume that the amplifier will deliver up to 150W per channel, so two speakers will be used on each channel. If the amplifier is rated to drive a 4 ohm load, then two 8 ohm speakers can be wired in parallel and connected. In this instance, take care NOT to drive the amplifier too hard. It will overdrive the speakers at about the same time that it will begin to show a distorted output. This is a condition that can easily damage speakers so be very conservative with the volume control. If the speakers are 4 ohm speakers, they can be wired in series to provide a total impedance of 8 ohms. If the amplifier is rated to deliver 150W into 4 ohms, then the total power to the speakers will be lower than to a single speaker. The benefit is that no speaker can be over-driven and there is a good amount of headroom for safety.


Can you play 8 ohm speakers on a 16 ohm amp?

There is no 8 ohm solid state amp. Really! The output impedance of such an amp will be arround 0.4 ohms. Scroll down to related links and look at "Interconnection of two units- Voltage Bridging - Zout < Zin".You can, as long as the amp's impedance is much lower to the speaker(s) total ohm load you're fine. We have never impedance matching there.

Related Questions

What are the potential consequences of connecting a 16 ohm speaker to an 8 ohm amplifier?

Connecting a 16 ohm speaker to an 8 ohm amplifier can potentially cause damage to the amplifier due to mismatched impedance. This can result in overheating, distortion, and ultimately lead to the amplifier failing. It is important to match the impedance of the speaker and amplifier to avoid these consequences.


How can I safely connect an 8 ohm amplifier head to a 16 ohm speaker cabinet?

To safely connect an 8 ohm amplifier head to a 16 ohm speaker cabinet, you can use a series connection method. Connect the positive terminal of the amplifier to the positive terminal of the speaker, and then connect the negative terminal of the speaker to the negative terminal of the amplifier. This will create a total impedance of 24 ohms, which is safe for both the amplifier and the speaker.


What is the impact of connecting a 16 ohm speaker to an 8 ohm amplifier?

Connecting a 16 ohm speaker to an 8 ohm amplifier can cause the amplifier to work harder than it is designed to, potentially leading to overheating and damage to the amplifier. This mismatch in impedance can result in poor sound quality and may even cause the amplifier to fail. It is generally recommended to match the impedance of the speaker and amplifier for optimal performance and to prevent damage.


Can you replace an 8 ohm speaker with a 4 ohm speaker?

Only if your amplifier is capable of driving a 4 ohm speaker. Some have a switch on the back to select 4 or 8ohm speakers. Details should either be printed some where on the back of the amp or the instruction manual


What is the impact of connecting a 16 ohm amplifier to an 8 ohm speaker?

Connecting a 16 ohm amplifier to an 8 ohm speaker can cause the amplifier to work harder than it is designed to, potentially leading to overheating and damage to the equipment. This mismatch in impedance can result in poor sound quality and may even cause the amplifier to fail. It is important to match the impedance of the amplifier and speaker to ensure optimal performance and prevent damage.


Can you power 8 ohm speakers with a 4 ohm amplifier?

Yes, but you won't get rated pwer. Best is to match the speaker to the amplifier.


How can I safely connect a 16 ohm speaker to an 8 ohm amplifier without causing any damage to the equipment?

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.


Will 8 ohm speaker work with 4 ohm bass guitar amplifier?

Yes. As long as the speaker impedance is higher than the minimum rating for the amplifier, you are OK.


Is a 4 ohm subwoofer better then a 8 ohm subwoofer?

You need to match the speaker with the amplifier. Better or worse is not the question. The question is dynamic range and the possibility of overloading the amplifier. If the amplifier is rated 4 ohms, use a 4 ohm speaker. Same for 8 ohms. Do not "mix and match".


Can resistance be added to speakers to make a 4 ohm speaker have an 8 ohm load?

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.


Will an 8 ohm speaker work with an 6 ohm amplifier?

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.


Can you use three 8 ohm speakers with one amplifier?

If the amplifier is designed for an 8 ohm load, then you should use an 8 ohm load. Three 8 ohm speaker in series is 24 ohms, and in parallel they are 2.67 ohms. Neither of those is a good match for an 8 ohm rated amplifier. If you do this, you will not achieve rated power, and you may well damage the amplifier.