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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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Testimonials

Really happy with my service and my purchase. Christian and Paul were really honest and polite, and helped me make the right decision in regards to choosing to upgrade my sound system as opposed to replacing my faulty CD player like for like.

— Jordan Hilton

Dear Chris and Staff I am just writing here to say thank you for the excellent service received from you and all your staff there. People are so quick to complain, but not as quick to congratulate on a job well done. My husband and I are really pleased with the fitting of the sat nav to our Ford Kuga which we feel has been done to a high standard and with excellent attention to detail. The knowledge you and everyone else who works there seems to have is great and gave me great confidence. And the customer services was professional and friendly. Even though the job you did for us was a small one I’m sure, compared to a lot of your other work, I was made to feel that nothing was too much trouble. The time taken to answer my questions and help me out was very much appreciated. I will have no hesitation in recommending you to other people and will certainly be back again. Thank You !

— Louise Seaman

I began researching an audio upgrade to my BMW and have visited several high end car audio specialists in the North West to get advice on possible options and costs …then I visited SOURCE. On walking in I was initially impressed with the SOURCE showroom display and the range of options to sample.There really is something to suit all budgets ,certainly far more comprehensive and wide ranging than any others I visited in the North West . The real “gem” of SOURCE is however their very detailed knowledge of all the technical and “fit” aspects and most especially the time they are prepared to spend talking through technical /price options without pressure to buy .As a result I returned a second time and again experienced the same friendly non pushy very informed advice as we explored the possibilities in a little more depth.Every question I had was answered,time was ,once again, not an issue and nothing was too much trouble including phone calls to suppliers to check availability/latest spec for my car etc .In the end I genuinely felt they wanted to advise the best system for me and definitely not just the most expensive. I am convinced you cannot get better than SOURCE for your car audio needs ,excellence like this is very rare in my experience and I strongly suggest you call in to this 5 star outfit – you wont be disappointed and I reckon you will be totally satisfied/blown away with the result if you buy.