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Old 02-19-2012, 08:09 PM   #1
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Downfiring Subwoofer ?

Hello.

At the moment I have a ported 10" subwoofer with the chassis and port at the top. It sounds good, but without the top itīs a bit too silent.
But itīs still louder than my last box, where it was in the rear.

Would a box with a downfiring subwoofer be louder?
Where should I place the port?
Also down?

Thanks for your help.
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Old 02-19-2012, 08:57 PM   #2
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Ported subwoofers are more effecient, however they use your trunck/rear cargo area to move the sound. when you take the top off they sound will always go away. I have a dual 10" Sealed down-firing subwoofer. with the top and or doors off the bass doesn't go completly away, but you do need to turn it up a little more.. For what you have I would have the sub/ and or port facing the back. So everything will bounce off the back.

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Old 02-19-2012, 09:10 PM   #3
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I had a sealed box with the same sub before. The ported box is way louder and deeper.

Are you sure that it will be louder with the top off when I build a box with the sub/chassis to the rear?
On that way the box will have less volume and that will make it 4-5 dB quieter at frequencies between 20-50 Hz.
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Old 02-19-2012, 10:03 PM   #4
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I have a down firing 10" sub and it hits hard. I have yet to try it with the top off. It's still to cold out. But I did a lot of research and that is what everyone suggested
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Old 02-19-2012, 10:35 PM   #5
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I had my sub facing the back. But it was a 3^ft enclosure. Took the back seats out to fit it inside the jeep(never used the back seats anyway). I was pushing 2000watts so having the top down didnt change much.
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Old 02-20-2012, 02:40 AM   #6
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When I build a downfiring ported box where should I install the port?
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Old 02-20-2012, 09:12 PM   #7
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I suggest sub and port down firing. This is my plan.
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Old 02-20-2012, 09:28 PM   #8
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Today I turned the sub around.
Downfiring wasn't as loud as with the sub on the top.
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Old 02-21-2012, 12:46 AM   #9
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this was my setup

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Old 02-21-2012, 10:29 AM   #10
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Quote:
Originally Posted by nicolas-eric View Post
Today I turned the sub around.
Downfiring wasn't as loud as with the sub on the top.
I thought you had a bandpass box?
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Old 02-21-2012, 03:47 PM   #11
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^^ I think he means he fired the port downward.

I hope you had something under it to lift the port up off the floor.
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Old 02-21-2012, 03:50 PM   #12
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The port direction will have no difference at all, unless its blocked off by the floor like you said
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Old 02-21-2012, 04:33 PM   #13
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Not positive as far as the port goes, but downfiring will give some "corner loading" effect where the gap between the cone and the hard surface create some restorative effect or backpressure. Can give some added reinforcement for max output.

Much like firing a sub toward a backseat with a passthrough trunk vs firing toward the trunk.
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Old 02-21-2012, 05:12 PM   #14
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i have dual 10in subs downfiring in my trunk. sealed enclosure. i lose probably 25% of the bass when the top is down. 1000w rms
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Old 02-21-2012, 05:15 PM   #15
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I plan on using a flat piston sub in a vented box in my ge project and toss about 1500 watts to it
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Old 03-29-2012, 09:05 PM   #16
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i have this sub Pioneer TS-SWX251 10".

it's under my back seat firing down. pounds hard and is loud as hell with only 300w rms coming from the amp.
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Old 05-16-2014, 01:08 PM   #17
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Quote:
Originally Posted by Big_Papa View Post
i have this sub Pioneer TS-SWX251 10".

it's under my back seat firing down. pounds hard and is loud as hell with only 300w rms coming from the amp.
any modifications to the rear seat to get it to fit?
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Old 05-17-2014, 01:25 AM   #18
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any modifications to the rear seat to get it to fit?
I doubt that you will ever receive an answer. Check the date of his post. The last time he was here was over a year ago too.
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Old 05-20-2014, 04:05 PM   #19
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He likely hollowed out the seat bottom to make it fit... There is a walk-thru post around here somewhere on it..
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Old 05-20-2014, 08:01 PM   #20
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He likely hollowed out the seat bottom to make it fit... There is a walk-thru post around here somewhere on it..
Google SirGCal, he has detailed plans on his website on how to mount two subs under the bench. I'm planning for a single 10" in a sealed box behind the rear seat, also downfiring.

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