Audio Project Amplifier Speaker Loudspeaker Kit
diyAudio.com diyAudio Forums Archive > Top > Loudspeakers > Subwoofers
 
10" and 1.5^ft - Click HERE for Original Thread
JDT
Is there a 10" woofer out there that can get down to 19hz in a 1.5^ft box?
xstephanx
In a car? yeah sure!

anechoic? no WAY

in a room i severly doubt it.

and even if it could, it would be like 78db efficient.
JDT
This is why I ask. It seems that alot of theses speakers use a 10" sub to get down below 20hz.
http://www.definitivetech.com/loudspeakers/clr/clr.html
merlinx76
No wonder manufacturers find ways to exaggerate the specs... because they have to compete with other manufacturers doing the same thing . Playing the numbers game.

Frequency response means absolutely nothing if they don't tell you at what point they are taking it from. Yeah...It'll play a 19hz tone or even lower, but it could be 10dB lower than at say 50hz.

They should just go all the way and say freq resp. 5hz- 50khz+ because it's likely they do play those frequencies...just not as efficiently.
simon5
If you look at a very potent 10 inch subwoofer on the market, the SVS PB10-ISD, worth 429$ USD...

Yes, it will do 19 Hz anechoic, at around 104 dB with full 300W imput. It will also play louder in room.

It's a TCsounds design, but it's at the very least 3 cu.ft internal net, because it's around 3.6 cu.ft external.

So, unless you don't want it to be loud, to get good SPL at 19 Hz in a 1.5 cu.ft box, I hope you have a lot of money.
JDT
Thanks for the responses. I did'nt really think it was achiveable but who knows.

I have been going back and forth on wheter I should build smallish stereo subs large vented or IB.
In the past I had a cheap pair of Def. Tech speakers that put out respectable bass (no sub), so I was curious if there claims had any bassis.
simon5
Well if they were towers speakers, they have more than 1.5 cu.ft to use... ;)
JDT
This is true. But what I had picked up on was there center channel that supposedly was dipping below 20hz. And at 25"x8-5/16"x16" I think that around 1.9 minus room for the other drivers.........
simon5
I guess you could do it for about 950$ USD then you add the cost of the box.

You'll need a Adire Audio Brahma 10" (350$ USD) with a Adire Audio ADA1200 1200W RMS into 4 ohms amplifier (600$ USD) with the Linkwitz Transform circuit enabled.

Page generated in 0.027669906616211 seconds with 17 queries,
spending 0.00964475 doing MySQL queries and 0.01802516 doing PHP things.

Powered by: Search Engine Indexer and vBulletin
Copyright ©1999-2008 diyAudio.com