Ported vs Sealed Box [MERGED]

**rtp** · December 15th, 2007 11:26 AM

Mga masters ano ba mas maganda gamitin na box para sa sony explode sub na 12"....ayaw ko sana nung umuugong na bass...mas gusto ko yung parang minamaso ang dibdib although kahit di ganun kalakas...yung medyo tight sana ang sound...thanks!

**hammerdin** · December 15th, 2007 07:18 PM

try abc or sealed box.

**zanch** · December 18th, 2007 05:52 PM

snail shell paps. boom boom yun!

**KBR** · December 18th, 2007 06:09 PM

Originally Posted by rtp

Mga masters ano ba mas maganda gamitin na box para sa sony explode sub na 12"....ayaw ko sana nung umuugong na bass...mas gusto ko yung parang minamaso ang dibdib although kahit di ganun kalakas...yung medyo tight sana ang sound...thanks!

I would recommend a Sealed Enclosure. mas deep at buo ang bass pag sealed, kahit na single 12" ang sub.

coz I have two 12" Kicker's on my Ford Aerostar van on Sealed enclosures, and they sound perfect! specially if the vehicle is an SUV or a Van.

aite, peace.

**jimmayor007** · December 19th, 2007 04:05 AM

70% of your sound of your sub woofer is due to the design and build quality of your sub enclosure. When picking a sub woofer box, deciding to either go sealed or ported will determine how your system will sound.

Sealed sub woofer boxes tend to be much smaller than ported enclosures, since they use the air inside the box as a spring for the enclosure. If you don't have much space, it would be a good idea to go with a sealed box. Not only is there a size difference, but there's also a difference in sound compared to a ported box. Generally the larger the box gets the lower the tone of bass is achieved. However if the box gets too large the "spring" effect that the air creates may be lost losing on loudness and crispness. Sealed enclosures produce tight, accurate bass and have a flat frequency response curve. They are the enclosure of choice when quality is the ultimate goal of the system set up.

Ported subwoofer boxes can get very large and have many varying factors that will determine their size and bass output. For example the port has to be relative in size to the boxes volume depending on how much loudness vs quality is desired. Ported enclosures create louder bass than sealed enclosures, and allow you to tune the box to a specific frequency to determine how the bass will sound. Higher tuning on a ported box will get louder, but you will ose on sound quality. Lower tuning will still get louder than a sealed box, and at the same time deliver good sound quality. Generally this is a box for a set up where "boom" is the ultimate goal. Port area plays a major role in these types of enclosures. Too little a port area can result in port noise, which can severely detract from the sound quality. However, if your goal is to get loud bass and you don't care too much about the sound quality, a ported box, tuned high, with a large amount of port area is the way to go.
...read the full guide with pics here

**v6dreamer** · December 19th, 2007 05:15 AM

A very nice post.

I was reading this forum all along but never read any post how to construct a good enclusure(box). Some people think that any box will do with thier system and that is a very deceiving...false.

Some people know that an enclosure(box) does more than simply hold the subs on place, wrong....it is an integral part of the system. Believe it or not a properly sized and built enclusure can turn an INEXPENSIVE woofer into a good performer, while a poorly designed or constructed enclosure wiil make even the finest woofer sounds like mud.

There are two main challenges in designing and constructing an enclosure; making sure it contains the proper volume of air, and controling the cabinet resonances that will otherwise compete with the sound from the woofer(subs). See jimmayor07 post how your sound become color if your box volume is incorrect.

The ideal volume of an enclosure(lenght x width x height) will vary dependi kung anong woofer(subs) ang pinili mo. Hindi lahat ng woofer(subs) ay created equal they have diff., power range, frequency range, impedance and some have dual voice coil(DVC). You must know what is the right internal volume for your woofer(subs) to maximize the sounds w/o muddying the sounds either sealed or ported box.

Your car system installer can help you how to choose the right box for you. If you are hessitant with your dealer or not sure, ask second or even third opinion from previous experience.

**Type 100** · December 19th, 2007 09:47 AM

Very helpful. Yun pala yung pinagkaiba ng sealed at ported boxes.

From what I see the very short summary is
SQ = sealed
SPL = ported

**toolightz** · December 20th, 2007 01:43 PM

Originally Posted by v6dreamer

A very nice post.

I was reading this forum all along but never read any post how to construct a good enclusure(box). Some people think that any box will do with thier system and that is a very deceiving...false.

Some people know that an enclosure(box) does more than simply hold the subs on place, wrong....it is an integral part of the system. Believe it or not a properly sized and built enclusure can turn an INEXPENSIVE woofer into a good performer, while a poorly designed or constructed enclosure wiil make even the finest woofer sounds like mud.

There are two main challenges in designing and constructing an enclosure; making sure it contains the proper volume of air, and controling the cabinet resonances that will otherwise compete with the sound from the woofer(subs). See jimmayor07 post how your sound become color if your box volume is incorrect.

The ideal volume of an enclosure(lenght x width x height) will vary dependi kung anong woofer(subs) ang pinili mo. Hindi lahat ng woofer(subs) ay created equal they have diff., power range, frequency range, impedance and some have dual voice coil(DVC). You must know what is the right internal volume for your woofer(subs) to maximize the sounds w/o muddying the sounds either sealed or ported box.

Very well said nice!!!

Originally Posted by v6dreamer

Your car system installer can help you how to choose the right box for you. If you are hessitant with your dealer or not sure, ask second or even third opinion from previous experience.

X2 and two thumbs up!!!