Subwoofer Information: Learn more about Vehicle Audio Subwoofers

Subwoofers. The bass. The loudness. The glory. The most obnoxious element in your system, and also, one of the most required.

If you've read my short article about speakers, you depend on speed. If you haven't (and have no idea anything about speakers or subwoofers), read it here.

Subwoofers recreate the most affordable frequencies of the audio spectrum, AKA bass. They are important to both SQ and SPL systems, but for various factors. Let's take a look now ...

For SQ systems: Effectively replicate the lowest frequencies making the music noise full and effective. Instruments that play lower frequencies such as organs, drums and synthesizers will sound more practical and powerful with a subwoofer installed.

For SPL systems: Due to the fact that subwoofers are loud, they are the preferred speaker making an entire lotta sound.

Likewise, because our ears are less sensitive to lower frequencies we need the extra bass for the system to sound well balanced.

So, exactly what do I have to search for to discover a terrific woofer? I'll inform you!

Power Handling:

Much like with every other part in a stereo system, power handling is very important for subwoofers as well. Previously, in my short article about speakers, I spoke about how you can send more power to them to increase their volume, but reduce the distortion. The same holds true of subwoofers, but be careful! Given that lower frequency distortion is more difficult to perceive, it's simple to overdo it, and blow your subwoofers. Anyhow, with that said, it is clever to purchase a Best Shallow Mount Subwoofer that can put out precisely what your subwoofers are developed to take, but relax!


Subwoofers can be found in many sizes, but the most typical are 8", 10", 12", and 15". This is most likely likewise noted in metric for the european brand names. As you can imagine, the bigger woofers are the ones that will play louder and play lower. Obviously, the smaller ones are more musical, more accurate, and sound "tighter". What size you pick usually pertains to your own preferences, as well as installation factors to consider. Remember! 18" subwoofers don't simply fit anywhere!

Voice coil info:

SVC: Single voice coil

This means that the speaker has only one voice coil Simply puts, only one input.

DVC: Double voice coil.

This indicates that the speaker has 2 voice coils, or more inputs.

Ummmmmmm, ok. Why does it matter?

I might explain here, however I understand you don't truly care. Basically, it boils down to this: With a DVC subwoofer, there are more setup options. Take a look at it in this manner, a DVC "looks" like 2 subwoofers to your amplifier. With some awesome wiring techniques (called series and parallel), you can link many subwoofers to a single amp-- even if the amp is a "mono" or a 2 channel amp. In addition, you can manipulate the number of ohms the amp needs to push. If you have an amp that is stable to a half ohm (like some old-fashioned Orion HCCA amps), you might possibly connect 4-8 woofers to a single channel! Imagine the sound you might make!

Some words about boxes:

Boxes are vital to a lot of subwoofers. To puts it simply, consider a subwoofer's box just as important as the subwoofer itself. Why? Because many subwoofers need a box to run appropriately, sound great, and not harm themselves. Subwoofers that don't need a box are called "complimentary air" or "boundless baffle" subwoofers.

Like I stated, the majority of subwoofers need a box. So, let's talk about boxes!

Initially, what kinds of boxes exist?

Sealed: The simplest kind. Basically, a sealed box is a box where the inside and outside are not linked. There are no holes, and care is required to ensure that the box is completely sealed.

Ported: A ported box is a subwoofer box with at least one hole, or "port" in it. The objective of the ported box is to highlight a specific frequency. These boxes are utilized due to the fact that they are frequently louder than sealed boxes.

Bandpass: A bandpass box resembles a ported box since it has ports; however, the bandpass box attempts to de-emphasize particular frequencies, while emphasizing others. In other words, it works like a bandpass crossover. The bandpass box highlights a frequency band while de-emphasizing frequencies lower than and higher than the band.

Isobarik: These boxes aim to fit more than one subwoofer into a small box. The subwoofers are established to operate in tandem. Often both subs relocate the same direction at the same time, in some cases one sub pulls while the other presses. There are advantages to this kind of setup, however box design is hard.

OK, so now you know everything about SUBZ, but here are the specs that you'll have to understand to pick your subwoofer:

Power Handling: Subs are speakers, and as such can just manage so much power (or distortion) prior to they blow! Power handling is measured in watts, and is frequently given in two requirements: RMS and Max (or peak). The RMS rating is the most crucial. If a sub states it can handle 200 watts RMS and 400 watts Max, make sure the amp will offer 200 watts RMS as well. Not 400 watts RMS. While it's true that the sub can manage 400 watts, it can only handle that type of power for a short time. If you hook that sub up to an amp that puts out 400 watts RMS, you will mess up that speaker pretty quickly-- due to the fact that it is continuously being exposed to 400 watts, not brief bursts of 400 watts. You dig? Excellent.

Sensitivity: This term implies precisely what you think it indicates. In short, a subwoofer with higher sensitivty will be louder than a subwoofer with lower sensitivty when they are hooked up to the same amp. The specification is determined in db.

Frequency response: You obviously desire a subwoofer than can manage a large range of frequencies. However, the subwoofer does one of the most work under 100hz. If the subwoofer plays all the way down to 20hz, you know you have actually got a great sub. Fortunately is that even if it doesn't go that low, most music does not either. Sooooo, you'll still be fine. I would say the it's more crucial to have a low-playing sub in systems with DVD gamers and 5.1 noise. Likewise, frequency response differs depending on the box that the subwoofer is set up in. Ummmm, so with this in mind, simply choose a subwoofer that will handle the power, and sound how you want it to.