home theatre sub conversion

[mulletdude]

Hey guys its me again
i have a precision audio subwoofer it is 10 inch and has 150 wat power handling and a built in amp i was wondering if it would be better to convert this sub to down-firing and let it rock the floor but the floor in the house im moving into is concrete so it will not really pass through the floor that much i was really thinking of converting it so i could get more punch and more low bass so when i throw a party people actually feel the bass. any input appreciated as always.

[schmutziger]

I dont think you will win anything with a conversion if the only change is woofer position in the box. probably it will be worse.

1. Put the subwoofer in a corner. To use floor, wall, wall reflection to boost output.

2. raise 40-200Hz ALOT for that chestbass

3. buy a couple of suitable woofers and build tapped horns for that punchy bass.

[mulletdude]

ok so you mean to basically edit any music i play in the frequency rang 50-200 hz so it will punch more, i wouldnt be changing only the position in the ox i would be building a whole new box like maybe a sonotube enclosure or something similar that wouldnt take a lot of work to make, and it has a plate amp built into the box that i would re-cycle because it is designed for the sub, furthermore would the floor being concrete have any effect if i do decide to make it a downfiring sub?

[schmutziger]

I think it is suboptimizing to do downfiring.
If you have the T/S-parameters, go for it.
Make it ported for higher output.

personally i would have gone with #3 and 2 cheap 8"/10" woofers, tangband maybe. They wouldnt be so bulky.
But check if the woofer youve got is suitable!

good luck!

[j.michael droke]

For your stated limited objective, initially, it is easier to experiment with your existing subwoffer than styarting over, also less expensive. As stated earlier in another post, (1) move your subwoffer to a corner with the cone facing across the cornner. Give this a listening test. (2) using some bricks or books to support the corners about three inches off the floor, turn the sub upside down to simulate a down firing type sub. Do another listening test. This should give you an idea of the potential odf this unit. (3) Also as mentioned, in he first reply, you could possibly buy an equilizer with 10 bands to install between your amplifier and the subwoffer. Adjust the lowest band (octave) often 20hz to 40hz for -6db cut and increase the next two bands (octaves) by +6 db. This should add punch to the appearent sound, something like you hear from a car system, however for a differet reason. You may wish to look on EBAY.com for a deal on the equilizer. If all else fails, and you decide to start over, a larger diameter sub Like 15 inch diameter would potentially move more air than a 10inch. While I do not recommend this for parties, around children of any age or pets, I have been uaing my 15 inch down firing sub turned upside down, in a cornner firing upward through a horn load... it shakes the walls on 10 watts of power.