20hz Or 16hz?

Pinktulip7

Mu sub set to default 20hz...if I change to 16hz with port block,is it make any difference? :eek: :eek: :eek: :eek:

RuSsMaN

It will play four cycles lower. Duh.

Pinktulip7

What do u mean?

VR3

You will have a *slight* loss in output overall... and it will hit lower.

PolkThug

The bass will be deeper at the sacrifice of amplitude.

Sami

I liked the sound better with 16Hz tune. I might try 12Hz as my HT room is quite small for PCU (14x12) and I don't listen at reference anymore.

PolknPepsi

The smaller the number the lower the notes.

Holydoc

Pink,

Below the 20hz range, your subwoofer will produce sounds that you "feel" more than hear, the shaking of the couch or that rumble in your chest. I have my subwoofer set on 16hz with one hole plugged because I like to feel the bass. To me, feeling the earth shake is as exciting as hearing the roar of the earthquake.

Now that being said, not all movies play sounds below about the 25-50hz range since people cannot really hear it and most cheap subwoofers cannot produce it. However for those movies that do have those sounds added, and if you have a sub that can handle it, you will definitely experience the movie as well as hear it.

jdhdiggs

You will lose output from about 19 Hz up but gain output from 19 Hz down. You gain access to maybe 0.1% more effects from movies so unless you really dig big church music, you probably won't notice the extension advantage. Some have noted that the sub sounds more controlled in the lower tune....

My suggestion, try it and see if the sound quality improves. If not, ditch the idea. There isn't enough content to justify a decrease in SQ.

McLoki

jdhdiggs wrote:

isn't enough content to justify a decrease in SQ.

I assume you mean the difference in volume not sound quality.

I actually like the curve I get (when I plot out the bass frequencies) better with one port of my sub blocked, that could just be the way my sub and room work together though.

Michael

Holydoc

jdhdiggs wrote:

There isn't enough content to justify a decrease in SQ.

I agree with McLoki, that I have to assume you meant volume and not sound quality. My sound quality has not changed but has in fact improved in my opinion, otherwise it would be foolish to keep that configuration. As far as volume goes, if I lost any volume in the upper hertz (which I am positive I must had just because of physics), I sure cannot tell it in my room. I may be one of the lucky ones though.

All I can say is try it and see what you think. Some movies it made a whole new experience to watching it to me. Some movies it made no difference. For instance movies like LOTR made my heart seem to skip a beat with the new settings, while with movies like Pretty Woman, there were no differences.

VR3

Lower tunes in normal size rooms are crazy...

I have a 25-31 model with a free 22hz and I hit 15hz at -4db...

You should expect ATLEAST 2 or 3 hz add on due to your room...

Fallen Kell

I would just check your SPL graphs to see which works better for your room to be honest with you. Yes you don't need max volume, but do look for best curve, because once you are taking about <20Hz, the amount of source material that actually contains these frequencies gets small very quickly. I mean, pipe organs and some drums are about the only things that hit those frequencies in the musical realm. In movies, most sound engineers do not bother because the customer base does not have the equipment to reproduce the sounds, so many will cut it.

goingganzo

it all depends on the fs of the sub the size of the box and power give, if the box is big enough and the fs of the sub is low enough you will gain some low end so it will rool off at a lower fr but at a steaper rate. it is called a ebs or extended bass shelf. but you usaly need a bigger box to get it. i can hit 120db @12 hz now that is bass