How to Get a Receiver to Work With 3 Ohm Speaker – Complete Guide

As much as many people prefer playing music loudly in their homes via receivers, they are the same individuals who may also require a robust sound. Therefore if you are among those fellows who still hold “Can I use 3 ohm speakers with my receiver”, then I want to tell you it is absolutely possible.

However, you should understand some basics when trying to connect your 3 ohm speakers to the receiver. Some of these considerations include; speaker basics, voice coil, choosing a proper speaker, and audio amplifier.

I know maybe you are wishing to use 3 ohm speakers with your receiver, but now how? Don’t worry about it because our article is fully packed to cater for your needs. You need to understand that 3 ohm speakers can be easily powered by your amp, meaning that you can blow them. That’s if you are not careful.

Basic knowledge to Get a Receiver to Work With 3 Ohm Speakerhow to get a receiver to work with 3 ohm speaker

  • Speaker basics

Speakers are meant to meet and survive various scenarios because they’re electromagnetic. They come in different shapes, as some have rectangular, oval, while others have a round shape. They work incredibly to convert audio signals (electrical current) to mechanical movement.

Inside the speaker, there is a roll of wires where the electrical current flows through that provides a varying magnetic field. The speaker’s voice coil is always centered, surrounding the permanent magnet. The voice coil always tries to move physically as a result of magnetic fields since the stationary magnetic field doesn’t vary. The coil is linked to the speaker’s cone, and through vibration, we get the sound.

  • Voice coil

Here is another consideration that you must know before using 3 ohm speakers with your receiver. This part plays a critical role in any speaker. The voice coil is stretched from the come up to the audio amp’s power output. This equips the voice coil with enough electrical current.

This is a clear indication that the audio amplifier and the speaker must pair well to enhance a suitable current flow from the amp to your receiver. On occasions, where the amp is too strong, your speaker is likely to be damaged. This happens, mostly when your speaker handles high power compared to what the receiver can provide; the sound you will get is weak and distorted. This is what is known as speaker impedance.

  • Audio amplifier

Audio amps do wonders by converting weak signals to powerful currents which pushes the speakers. Under this scenario, the so-called “power” is measured in watts, just like when using a light bulb. The wattage usually stands for the amount of current flowing in a particular circuit. For this reason, a hand-held or small receiver won’t have sufficient audio power, unlike larger ones which are power houses.

This knowledge should help you when trying to use a 3 ohm speaker with your receiver

  • Choosing the right speaker

You should ensure the speaker with you is great for rich audio quality. For example, if your receiver is meant for 8 0r 6 ohms speakers, converting the speaker to 3 ohm can sacrifice the current demand as it will demand more from your receiver. Your amp is likely to be destroyed or leave you with distorted sound as a result of improper current flow.

Conversely, you get nothing by converting your speaker to either 32 or 16 ohm style because the speaker won’t require sufficient current from the receiver. The sound you will get is likely to be weak. Some manufacturers use “feedback” technology in their audio receivers which is essential in stabilizing the amp’s performance.

There’s a suitable way in which this technology is linked to the circuit of the speaker. This implies that changing the type of the speaker can interfere with the stability of your receiver.

What should I do to use 3 ohm speakers with my receiver?What should I do to use 3 ohm speakers with my receiver

Receivers are known for powering only power subwoofers. 3 ohm is somehow low load for many receivers. I am not saying that it won’t work, but the volume level should be reduced before the amp’s protection circuit starts. Speakers with 3 ohm ratings are a clear indication that their resistance is low. 3 ohm speakers are known for being pushed by the receiver easily; be careful because when you crank the highest volume, you are likely to blow them.

We have some amplifiers that tend to generate excess power to low-resistance speakers like 3 ohm ones. If you decide to run such speakers, I don’t think the manufacturer will be held responsible. With an impedance mismatch, some power won’t fully reach the speaker. Your speakers will operate, but not as when you could have used the ones with correct impedance ratings.

You also have to understand that the power ratings (watts) of the speaker and not the impedance that determines the speaker’s loudness. Therefore, as much as safety and best performance are concerned, the speakers and amplifier should be matched.

You may still get useful information from receivers which are equipped with external speakers; they are preferable because they have a printed specification concerning suitable speakers. Therefore, for a better or high quality sound, you better opt for high-quality speakers that boast incredible Ohm rating.

Another way to achieve better sound is by investing in a good and heavy-duty speaker and receiver to meet your expectations or desires. Else, you may end up with distorted audio quality and risking the speaker; you may blow them.


  • Is it possible to substitute a 4-ohm speaker with a 3-ohm speaker?

There is not a big problem as long as their ohm ratings are equal. You should consider what your system can offer or rated ar. However, a speaker with higher rating will pose less rated power and more resistance through your speaker. Nothing will be damaged though.

  • What is the wattage of the 3 ohm speakers?

If you have a 3 ohm speaker, the highest power to expect from a 12V power source is 20W per channel.

  • Can a 3 ohm speaker operate with a 6 ohm receiver?

Of course yes, but you will be sacrificing the sound quality since there will be a mismatch in impedance.


We hope the above discussions have cleared your doubts on whether you can use 3 ohm speakers with a receiver. We have provided you with basic knowledge and what you need to put into practice to achieve quality sound.

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