Complete Guide on How to Convert a 1ohm Speaker to 4ohm?

Changing a 1ohm speaker to a 4ohm speaker is a procedure that most people, incredibly the car specialist, prefer to use since most cars use the 4 ohm speaker. The only way to get the best 4ohm speaker is to establish the best connection. But, if you wire the two speakers incorrectly, there will be an emission of poor sound quality.

How can I change the 1ohm speaker to 4ohm? If you keep worrying about how you change the 1-ohm speaker to 4ohm, worry no more since you can carry out such a process. First, ensure you have a well-functioning 1ohm speaker or 4ohm speaker. Then, proceed to follow the information necessary.

Fortunately, the article explains how you can convert a 1ohm speaker to a 4ohm speaker correctly. Also, it includes some frequently asked questions and provides a perfect solution. Through this article, you will discover and expand your knowledge of the speaker conversion process.

How to convert the 1ohm speaker to a 4ohm speaker?How to convert the 1ohm speaker to a 4ohm speaker

Tools necessary;

  • Voltmeter
  • Speaker wires
  • Dual voice coil sub to look on the back of the speaker terminals
  • Two coils
  • Resistors
  • Four 1-ohm speaker
  1.  First, begin by testing the coils using the voltmeter and record the measurements. If the coils are incorrect, replace the coils and then proceed to the next step.
  2. Test the speakers, see if they are in good condition, and then disconnect them from the power supply source.
  3. Connect the one wire to a resistor and 1ohm speaker.
  4. Repeat the process for the rest of the 1ohm speakers and test them correctly using the voltmeter. Record the readings.
  5. Arranging the 1ohm speakers in series form allows you to get 4ohm speakers from the calculation (1 + 1 +1 +1) = 4ohm speaker.

If all of your speakers have the same impedance, divide the number of speakers by the typical impedance. The net impedance will be calculated as a result of this. The net impedance of four 4 ohm speakers wired in parallel is 1 ohm. However, that score is merely a starting point. If you’re thinking about getting 4ohm speakers, don’t be concerned; such speakers are perfectly positioned for amp matching.

When it comes to 1-ohm speakers, though, the story is different. These amplifiers frequently make more significant requirements on the power reserves of transmitters and amplifiers rated at 1 or 4 ohms. You can keep such receivers/amps from getting into difficulties with 4-ohm speakers by playing sounds at a reasonable volume.

Nevertheless, if you play your movies or music at exceptionally high volume, the receiver/protective amp’s circuits will most likely safeguard you by turning down the receivers or amplifier. Contact the speaker’s and receiver’s manufacturers if you’re unsure whether a 4-ohm speaker will work with a receiver. Don’t bother about matching impedance with your receiver or amp if your speakers are rated at 4- or 8-ohms, as most are. As a result, before connecting the speakers with different ohms, consider the ohms first and compute the impedance.

How to wire a 1ohm speaker?How to wire a 1ohm speaker

First importantly, you must identify how many speakers you intend to connect to your amp, as well as their energy demands and the amplifier’s output power. If you’re wiring in series and parallel, the method of calculating resistance will differ.

Wiring Multiple Speakers in Series: When wiring several speakers in series, the positives from one speaker are connected to the negatives of the next. When wired in series, the overall ohm load is calculated by simply adding the ohms from each speaker combined. A resistance of 4 would be achieved by connecting four 1-ohm speakers in parallel.

When parallel, the positive wires are connected to the positive posts, and the negative wires are connected to the wireless posts, unlike in a series, when positives and negatives are connected. The total ohms from each subwoofer are added together and then divided by the number of subwoofers to get the resistance in parallel wiring. Divide four by 4 to achieve a resistance of 1 ohm if you have two 1-ohm speakers.

Steps on how to test a 1ohmSteps on how to test a 1ohm

  1. Gather all the materials you may need. For instance, have a multimeter, power source, and 1ohm speaker.
  2. To test the speaker, first, connect them to the power supply. Using the volt battery, connect your speaker’s terminals and ensure the terminals match. A positive terminal to a positive terminal of the speaker and vice versa.
  3. There will be an emission of a pulse indicating that the speaker is in good condition, and if not, the speaker is faulty and requires some fixation.
  4. If using a digital multimeter, connect the device to your 1 ohm speaker. Connect the end of the battery’s positive terminal to that of the speaker using a wire.
  5. Connect the negative terminal of the speaker to that of the battery and measure the recordings. High or low recordings indicate the speaker is faulty.
  6. Finally, test the speaker’s capacitor. In this process, you will need a digital multimeter to connect the positive ends of the device to the positive ends of the speaker and vice versa. If the multimeter records some reading, the capacitor is in good condition; otherwise, it is faulty.

Frequently asked questions:

  • Which is better, between 1ohm and 4ohm speakers?

If you have one amp and must choose between 4 and 1ohms, the 1 ohm is advised. If you’re dealing with the same watts for 1ohm and 4 ohms, the benefits of operating an amp at 4 ohms outweigh the significant power reduction. The 4 ohms will sound slightly better, and there are other benefits. As a result, it’s critical to think about your specific preferences when selecting a speaker.


The best way to get a 4ohm speaker is by connecting four 1 ohm speakers. Read the article above to get the best results when establishing the connection between the two devices. Also, be careful when connecting the devices to avoid damaging them or experiencing an electric shock.

Finally, take some precautions when converting the speakers. The precautions include understanding how to convert the 1-ohm speaker to a 4-ohm speaker and how to raise the bass of the output by using the capacitor. In case of any issue, seek help from a professional technician to help you solve the problem.

Leave a Comment