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Don't Get It Wrong, This Is the Difference Between 2 Ohm and 4 Ohm Subwoofers

09 April 2025
Perbedaan Subwoofer 2 Ohm dan 4 Ohm

You may often see music lovers prefer using speakers over headsets. This is because the sound from speakers has a more natural performance to deliver quality music. 

Some people even choose subwoofer speakers to deliver certain types of music. So what is a subwoofer speaker, and what is the difference between a 2 ohm and a 4 ohm subwoofer?

Understanding Subwoofer Speakers

In terms of shape, speakers generally have a similar appearance. However, the type of speaker presented actually has a specific purpose to deliver quality music sound. 

In this case, bass music lovers usually prefer to use subwoofer speakers compared to regular speakers or even woofer speakers.

This is because a subwoofer is a type of speaker designed to produce lower sounds. Subwoofers can only produce sounds with frequencies ranging from 10 Hz to 200 Hz. 

The sound produced by this device can also provide more detailed specifications by delivering softer sounds compared to regular speakers or woofer speakers.

Read Also: Tips for Choosing a Power Amplifier for Car Subwoofers

Understanding Subwoofer Impedance

Impedance is a measure of the resistance of a speaker that can be measured from an alternating current source, commonly referred to as AC. The difference between a 2 ohm and a 4 ohm subwoofer must be understood as it can affect the performance of an audio system. 

The ohm unit used for this impedance has the same unit as that used for resistance or resistors.

The difference in subwoofer impedance greatly influences the calculations of the entire electrical circuit for direct signals. This includes all factors that can cause resistance and energy transfer in a system such as capacitance, resistance, and reactance. 

Impedance, often represented by the symbol Z, is obtained from the reaction of resistance and electron capacity.

The impedance condition of a subwoofer speaker is closely related to the current produced. This is because a high impedance condition in a subwoofer will have a small current that can pass through it. 

This can also affect the maximum power of a circuit. Thus, the difference between a 2 ohm and a 4 ohm subwoofer is closely related to the maximum sound volume produced.

Read Also: Without Going to the Workshop, Here’s How to Install an Amplifier to Car Speakers

However, this impedance is essentially a non-pure resistance value. The impedance of a subwoofer speaker cannot even be measured using just a multimeter. 

If you want to measure this value, you can involve a measuring circuit using a sine generator, whether a function generator, audio generator, or a CD containing a recording of a 1 kHz sine wave.

Certainly, you should know the impedance value of a speaker before presenting audio speakers that suit your needs. You must also use the right power amplifier to deliver quality music. 

Typically, you need to choose a monoblock power amplifier with 2 channels or 4 channels that match the impedance of the subwoofer speaker you have.

Using speaker impedance that does not match the power amplifier can even cause damage to the audio speaker. Therefore, the difference between a 2 ohm and a 4 ohm subwoofer should be carefully considered before safely installing the audio. 

Proper installation can also provide a balanced load on the speaker to achieve quality music.

These are some things you need to know about subwoofer speakers that are often used for bass music. The use of 2 ohm or 4 ohm subwoofers is essentially an impedance unit that must be matched with the power amplifier to be connected to the speaker. Properly connecting these components can even deliver quality music according to your expectations.

Read Also: How to Assemble a Good Subwoofer for Cars

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