Why people hate 4th orders?

[Lschevelle 10+ year member]

s there a legitimate reason why a lot of people don't care for 4th orders? I mean if you have the space it should should be best way to go. I never heard one in person but I've been seeing impressive numbers

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[massivespl]

Did u start this same thread on Caco too? Not all woofers are ment for 4th order.. And 4ths take up a lot more space.. It really depends on what woofers u have.

 

[adulbrich 5,000+ posts]

Many end up with a really peaky response curve

 

[chefzane]

While they may sound good in their range they fall flat on their face outside of it, plus the size to power ratio isn't worth it to most, and its not the loudest by any means

 

[Lschevelle 10+ year member]

@massivespl yea..to get more opinions..
Does it depends on the type of music a person listen to as well?

 

[Popwarhomie 5,000+ posts]

A buddy has 2 15s in a 4th. My two 18s are way louder with the same size 13 cubes net.

 

[Justin braaapp]

I was thinking of doing a 4th for my two sundown zv4 15's in a chevy Silverado ext cab but idk

 

[Chipmunk2k3 10+ year member]

personal preference and inexperience

When done right 4th orders are amazing but getting them right is not easy. I think that's where most people get turned away.

most (if not all) of the really loud systems i've had the chance to hear have had 4th orders.

 

[Chipmunk2k3 10+ year member]

A buddy has 2 15s in a 4th. My two 18s are way louder with the same size 13 cubes net.

Not trying to be a jerk! but this seems obvious to me. I'd be impressed if 2 - 15's were way louder than 2- 18's equally powered.

 

[VWBobby 10+ year member]

The main reason you don't see more people doing them is the complexity of the design compared to a standard ported or sealed box.

You want a ratio of around 2:1 (ported section being twice as large as the sealed section).

As said before, if done right, the output really can't be beat. If you are going for a narrow bandwidth such as SPL, bass music, etc...it could work out well for a lot of people.

A quick 4th order design in WinISD will show you how much more output the same woofer and power will have compared to ported. Play with the ratios of the chamber sizes to see how much output you can get when narrowing the band (tuning). Some speakers respond better than others in a 4th order, but generally not as picky as ported compared to sealed.

 

[hispls 5,000+ posts]

The main problem is that by the time you have a reasonably wide bandwidth playing flat you have basically a worse sounding sealed box. If you are looking for big gains in a very narrow bandwidth they can be useful.

 

[Jeffdachef 5,000+ posts]

A 4:1 or 10:1 ratio 4th order does stupid high numbers.

 

[Justin braaapp]

The main problem is that by the time you have a reasonably wide bandwidth playing flat you have basically a worse sounding sealed box. If you are looking for big gains in a very narrow bandwidth they can be useful.

So they aren't really great for hitting a wide range of frequencies?

 

---------- Post added at 03:24 PM ---------- Previous post was at 03:23 PM ----------

 

The main problem is that by the time you have a reasonably wide bandwidth playing flat you have basically a worse sounding sealed box. If you are looking for big gains in a very narrow bandwidth they can be useful.

I was deciding on one for my two zv4 15's but if someone can persuade me to do a regular ported instead I wouldn't mind

 

[Jeffdachef 5,000+ posts]

So they aren't really great for hitting a wide range of frequencies? 

---------- Post added at 03:24 PM ---------- Previous post was at 03:23 PM ----------

 

I was deciding on one for my two zv4 15's but if someone can persuade me to do a regular ported instead I wouldn't mind

Find out the truth, model them in WINISD and see either they are peaky or not and possible spl gains vs ported.

 

[Lschevelle 10+ year member]

I thought 3:1 ratio was pretty good but I saw on another thread saying that less power more ratio you should use and vise versa...so in the case of 4th orders..it's more dependant on the equipment?