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Sealed or Ported? That is the question we get asked a lot

March 25th, 2015

Sealed or Ported? That is the question

The most commonly asked question we get at Source Sounds is whether a subwoofer works best sealed or ported? In our opinion there is no definitive answer to this as everyone has their own opinions and preferences. All of us here at Source Sounds in Sheffield prefer the sound of a sealed subwoofer enclosure over the sound of a ported enclosure.

 

Sealed or Ported? Rainbow Hammer SW250 sealed subwoofer enclosureSealed Enclosures

A sealed subwoofer enclosure uses a specific volume of air for the type of subwoofer. As the woofer moves, it pulls the air forwards and backwards with no pressure loss which allows the subwoofer to reproduce the low frequencies more accurately than a ported box due to the air inside the enclosure acting like a shock absorber, allowing the subwoofer to move with more control thus giving better controlled sub bass.

 

Ported Enclosures

Sealed or Ported? That is the question. Hertz EBX250 ported enclosureA ported enclosure is something that is a little more tricky to build due to the nature of the box. For the subwoofer to perform to it’s optimum the port has to be a specific size. This includes correct measurements for the width, length and shape of the port. You can’t just stick a hole in a sealed box and turn it into a ported box. Having a ported enclosure allows the subwoofer to take advantage of the frequencies produced at the rear of the subwoofer. This reinforces the low frequency response of the subwoofer. This lower frequency response however will only sound good at whatever the tuned frequency of the port is.  This tuned frequency can be adjusted by altering the airs resistance to motion inside the port which is accomplished  by changing the length and width of the port.

 

In summary, ported enclosures can typically offer better low-end extension as well as greater output around the tuned frequency whereas a sealed enclosure will give a better frequency response across all frequencies with a more controlled output, which is why here at Source Sounds in Sheffield we prefer the sealed enclosure as it gives better sound quality overall than a ported subwoofer enclosure.

 

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Absolutely first class customer service with some real friendly and knowledgeable guys. I had every option and product explained to me in depth and the finished product is perfect. I will be using them for years to come

— Joseph Lynch

Just want to say a massive thanks to all the lads at source for doing a perfect job of my stereo, sub and amp. I couldn’t be happier with how it looks and sounds. The costomer service was second to none. Next step for me is to upgrade all the door speakers so I’ll definitely be paying you another visit. Thanks again lads. Jamie (mk5 golf gti)

— Jamie Twibell

The best car audio in Sheffield! Paul spent over an hour with me just talking about everything, door speakers, amps, sub woofers & these guys really know their stuff. Chris (who did the work on my car) spent ages making sure I had no rattles at all. I got a top of the range set up within my budget, head unit, amp, sub & door speakers & cannot speak highly enough for these guys, i learned loads & got a system that properly rocks. If you want car audio, go see these guys, even if just for a quick chat, you’ll see what the hype is about. 10/10