Subwoofer only playing lows?

[stephens30228 10+ year member]

I am not sure of I should put this in sub, amp, or box but hopefully someone can help me. I bought a. Orion 2500d and a dd9512, I also built my own box to put it in. Now it was my first time building a box, but go some reason the dd will only play real lows. On the song "thumb through that check" by rocko it plays the lows parts real low, but the hi hits sounds like crap, my kickers sounded better. What could cause this, also how much should the speaker flex? Or will I know when it is too much?

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[Kangaroux 5,000+ posts]

Could be a combo of a box that is too small/tuned too high or your low pass filter is turned down too much. Can we get some specs on the box?

 

[jsluss17 10+ year member]

your box is probably tuned really low

 

[Buck 5,000+ posts]

Box tuned really low, improper airspace. If it's hitting the highs and sounding like crap, it's probably the box. What is your LPF set at?

Specs of the box?

 

[stephens30228 10+ year member]

Erm I have the specs at home on the computer. I can get them tonight. I know external dimensions are 41" wide, 16" high and 18 deep I believe. The port is 3" wide, but I don't remember how long.

 

[stephens30228 10+ year member]

Box tuned really low, improper airspace. If it's hitting the highs and sounding like crap, it's probably the box. What is your LPF set at?
Specs of the box?

75

 

[Kangaroux 5,000+ posts]

Erm I have the specs at home on the computer. I can get them tonight. I know external dimensions are 41" wide, 16" high and 18 deep I believe. The port is 3" wide, but I don't remember how long.

That box is roughly 5 cubes...in order to be tuned to 32hz for example the port would only need to be 1.5". Me thinks you're tuned into the low 20's or something lol

 

[stephens30228 10+ year member]

That box is roughly 5 cubes...in order to be tuned to 32hz for example the port would only need to be 1.5". Me thinks you're tuned into the low 20's or something lol

Weeelllll if someone had gotten back with me maybe I would have known that lol. Either way it was my first attempt at a box, will that damage the speaker?

 

[Kangaroux 5,000+ posts]

Weeelllll if someone had gotten back with me maybe I would have known that lol. Either way it was my first attempt at a box, will that damage the speaker?

The box is huge so your chances of bottoming out the sub are a lot higher. Make your box 10" high instead (on the external dimension). Invest in a 4" aero port and make it around 7-8" long. That should put you at about 2.75 cubes net tuned to 32-33hz. Alternatively, use a 6" aero port and make it around 20" long.

 

[stephens30228 10+ year member]

The box is huge so your chances of bottoming out the sub are a lot higher. Make your box 10" high instead (on the external dimension)

When I get home I will send you a sketch of the box, cause I didn't think that 10" high was feasible with the speaker on top.

 

[Buck 5,000+ posts]

That box is massive.

 

[stephens30228 10+ year member]

Well the port takes up about 7" of the width so I thought that would help on the area. Like I said let the flamin begin, but a least I did try. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[wickedwitt 10+ year member]

The box is huge so your chances of bottoming out the sub are a lot higher. Make your box 10" high instead (on the external dimension). Invest in a 4" aero port and make it around 7-8" long. That should put you at about 2.75 cubes net tuned to 32-33hz. Alternatively, use a 6" aero port and make it around 20" long.

I started a long winded speech as to why parts of this was wrong, but I give up. Bigger boxes are more efficient, they don't necessarily make it "easier to bottom out". If tuned properly, it would actually be harder to unload the subs. Keep the dimensions, just tune the box properly. You'll be amazed at the output.

 

[stephens30228 10+ year member]

Well I assumed it was either the box wrong or the amp tuned wrong because on really low songs the system is STUPID loud. But only on the low parts lol

 

[Buck 5,000+ posts]

2.5 cubes is what I'd do, tuned like 32-35 depending. Good range and decent lows.