12" (30cm) Subwoofer

12" (30cm) subwoofer

12 inch subwoofer - impressive sound in the car

A deep and clear bass forms the basis of an impulsive vehicle sound system. Subwoofers with an outer diameter of 30 cm have now become established and form the most popular size. We explain why 12 inch subwoofers offer an optimal compromise and what to look for when buying. The two most popular brands in our large range are Edge Car Audio as well as Deaf Bonce. Click here to go directly to the selection of these two top brands: Edge Car Audio and Deaf Bonce.

Is a 30cm subwoofer necessary?

A subwoofer is responsible for the reproduction of low-frequency sound waves and provides a powerful sound experience within a sound system. A characteristic feature is the large diaphragm diameter, which allows the subwoofer to distinguish itself from high and low frequency speakers. midrange speakers and midrange speakers. The term subwoofer is composed of the English word "sub", which translates as "under", and the term woofer. The word woofer refers to the woofer. A 12 inch subwoofer is therefore used when the primary woofer in a multi-channel sound system has too little power or when the bass special attention should receive special attention. The 30cm subwoofer typically operates in a frequency range of 25 Hz - 100 Hz, although some models can reproduce lower tones in the range of 20 Hz or even 10 Hz. They are available individually, or in ready-built in enclosures. Basically, there are two basic types of 12 inch enclosure subwoofers, the active and the passive. The active models are equipped with a integrated amplifier and convince with a detailed bass reproduction. Furthermore, car subwoofers have three types of Enclosure types these differ in closed cabinets, bass reflex cabinets and bandpass cabinets.

Why 30cm subwoofers are the most popular

The 12 inch subwoofer is considered a special speaker in a sound system and reproduces the deepest sounds that the human ear can perceive. For the production of deep sound waves in conjunction with a high volume level, the membrane diameter is an important factor. A 30cm subwoofer is able to reproduce fast and long lasting bass sequences impulsively. Larger subwoofers with a diameter of 46 cm and more produce a powerful deep bass and are usually less suitable for fast music genres such as heavy metal, house, pop or techno. For an optimal sound experience, the bass-heavy octaves must be transported to the listener's ear at the right speed. A 30cm subwoofer is considered an all-round speaker in this respect. In addition, the diaphragm is large enough to generate an imposing sound pressure.

Optimal compromise between space requirements and strong bass output

In order for the deep sound waves to develop optimally, a large sound box is necessary. Not every car has a large trunk and space for a bass box. For small vehicles are Free-air subwoofers are well suited. These are woofers without enclosures, designed for installation in the trunk or under the seat. However, 12-inch subwoofers are so handy despite their sometimes considerable power that a good enclosure is recommended in any case. For many models, there are manufacturer-recommended instructions for the ideal enclosure, including for one of our top sellers in the high-end range"JL Audio 12W7AE". Alternatively, the housing dimensions can also be used for the "B2 Audio RAGE 12 V2" or the "Ground Zero RADIOACTIVE GZRW 12XSPL" find on our product pages or also calculate. The mentioned brands offer 30cm subwoofers in first-class quality and all performance and price classes.

This is what matters for a 12 inch subwoofer

The power is one of the most important key figures to pay attention to when buying a 12 inch subwoofer. The wattage describes the power handling of a speaker. It's important to pay attention to the "Watt RMS" specification here; this unit indicates the actual nominal power of the loudspeaker. The abbreviation RMS stands for "Root Mean Square" and means square average. The higher the RMS value of the speaker, the more powerful bass output is possible with an equally powerful amplifier. In conjunction with an amplifier, these power values should be similar to each other. A high RMS value for a subwoofer with a lower RMS value for an amplifier will not provide a satisfying sound experience. It is also important to compare this RMS power at the right resistor. For example, to make perfect use of a 1-channel amplifier with 1000 watts RMS at 1 ohm resistance, you need a 12 inch / 30cm subwoofer with an impedance of D2, which corresponds to 2x2 ohms. The voice coils are then connected in parallel, which results in an impedance of 1 Ohm and thus the 1000 watts of the amplifier are available. With two 12 inch subwoofers, for example, you need an impedance of D1 or D4 to ensure a 1-ohm amplifier connection.

12 inch subwoofer - Our professional tip:

In addition, the Efficiency is another factor that is important for a 30cm subwoofer. The efficiency describes how much of the supplied electrical power the speaker converts into sound pressure. If the 30cm subwoofer is connected to an amplifier, the impedance is an aspect that should not be neglected. The impedance is the electrical resistance, which is between D2 (2x2 Ohm) to D4(2x4 Ohm) for most models. To avoid loss of sound or damage to the amplifier the amplifier should have the same impedance value as the subwoofer.

Which manufacturers does Masori distribute?

At Masori are 30cm subwoofer currently available from the following manufacturers: Accuton, American Bass, Audio System, Avatar, B2 Audio, Blam, Cerwin Vega, DD Audio, Deaf Bonce, DLS, Edge Car Audio, ESX, Ground Zero, Hifonics, Image Dynamics, JL Audio, Kicker, Morel, Peerless by Tymphany, Pride, Rockford Fosgate, Scanspeak, Tang Band.


A 30cm subwoofer rounds off the sound experience in the car and ensures precise amplification of the low frequency ranges. Thanks to the different sizes and designs, every car can be equipped with an impressive sound generator. The market offers the right 12-inch subwoofer for every taste in different power ranges to breathe new life into your favorite music.