recommended wattage for 30m2 room

[samsagaz]

Hi guys, i will start building a new HT, but dont know where to start, right now im using an 10" 150W sub and FR125 DIY Speakers. I will upgrade my full system and want to start with the Subwofer, how many Watts you recommend me for my room?
Any brands/recommendations?

Mainly i will use it for Movies, and Some music, for music i dont heard Tecno or POP, just listen Jazz, classical and some Reggae

[Rademakers]

Watts are meaningless without knowing the sensitivty. The're much and more interesting parameters around. Also room volume in coorperation with room area might be interesting.

Wkr Johan

[samsagaz]

well any brand / model to recommend me to listen that kind of music?

[Moondog55]

OK one possible solution is to start with the sub you have.
Is it loud enough most of the time?? Just buy another sub and place it in the room at random * "a la Geddes" and listen, then keep adding cheap subs until it's loud enough and smooth enough.
Rademakers is correct, it isn't watts what cound, it's total sound quality and SPL.
those more expert than I am will need:-
details of the room construction; its shape,area and ceiling height,
floor type ( carpet or tiles/boards ) and whether your budget will include any room treatments ;like bass traps and diffusors.

It is a complicated subject and I'm just starting to learn it.

Have fun and don't get discouraged
Ted

[samsagaz]

i see, i understand what you say, i really dont like this sub, its too much punch, like for pop/techno music, i want more detailed one, to use with soft music like Jazz, Tango, Classical.

[Moondog55]

OK So this sub has a peaky responce? Do you use it only for home theatre ?? or do you want it to do duty for music as well?/
What is you current speaker system?
Do you plan on replacing the whole system or making it completely yourself? because Subwoofers should only be used to complement your system below ~ 80Hz, some people would say even lower just for the bottom octave from 50 down to 25Hz or so.
If its jazz you listen to perhaps you actually need speakers with a decent bass driver.
Personally I would not calssify the classical music I like ti become immersed in as "soft"

[Cal Weldon]

It's not a very big room so you could get away with a 12" woofer and a 250 watt plate amp.

[samsagaz]

i was thinking in an 10" or 12" (or maybe 2x8") i want to go as low as possible, close to 20hz will be great.

i will rebuild my whole system. but will start with the Sub

[zoranaudio]

Hi!
I have the same space room about 30 m^2 and I have one 12" pioneer sub made for car audio, and another one 15"B&C PA sub, the first one is drived with 200 watt mono amp. and other is drived with other amp about 250W bridged amp, two mono channels each about 80W.Both sub's I cutted at 75 Hz with two way active filter.
And what I found during a long time that you always want to turn up the volume, sometimes it is not enough...of course this depends of your filings at given moment.

[Moondog55]

Samsagaz, I'm going to guess that you current sub is ported, if it is try stuffing a pair of socks into the port first, if that sounds better to you, then you "could" remove the woofer and fill the box with stuffing and block the ports,
Sometimes works