Post area Help

[Bobbytwonames 5,000+ posts]

It matters more what the port speed is under full RMS power into the woofer. Look man, I'm a long time designer. I design a lot of complicated enclosures. People who know how to design know how to design. Port speed matters relative to how much power the woofer has. Port area depends on how the system is being used, as well. There's a ton of factors that go into determining the best port area for any situation. That's what people pay me to figure out. Port area is very important and can really change how a woofer plays.

You keep saying "port speed" and then you switch over to "port area. Quit changing subjects. What port speed is the best? I don't want any port area bullshitt. What port speed is the best?

 

[Bobbytwonames 5,000+ posts]

A woofer with a lower Fs is typically going to play low notes better. But, it depends on the rest of the t/s that shows how the woofer is designed. In some woofers, Fs is less relevant than other woofers.

So, my 8's have an Fs over 51. So, how low should they play? Just curious. You seem to be the forum genius.

 

[Buck 5,000+ posts]

So, my 8's have an Fs over 51. So, how low should they play? Just curious. You seem to be the forum genius.

That's not enough information. If they're not in a box, they won't even play 51 hz.

 

[Buck 5,000+ posts]

You keep saying "port speed" and then you switch over to "port area. Quit changing subjects. What port speed is the best? I don't want any port area bullshitt. What port speed is the best?

Once again, port area directly changes port speeds/air velocity. Those two factors are in direct correlation with each other, lol.

 

[Bobbytwonames 5,000+ posts]

That's not enough information. If they're not in a box, they won't even play 51 hz.

2 subs in 1.9 cubes net on 3,000 watts. What more do you want?

 

[J-MurdR]

Why are you limiting your amp to 1,600 watts? Do you have a bass knob with a clipping light? What amp are you running?

2 Svr 12s rms Is 800 a piece, taramps smart 3k I have a clipping light

 

[J-MurdR]

I've designed skar svr boxes. I rarely pay attention to recommend manufacturer port area. Port area changes depending on the goals and tuning, so I always do port area based on actual port speeds and how I want the port speed for any given situation. Lmk if you need help or a design for these subs.

I got my design about how I want it. I'm just thinking instead of the manufacturers port area recommended 43.75 I should go maybe 55.00 total port area on the box I'm building at 34hz to get the full potential out of my subs. What you think man?

 

[J-MurdR]

I got my design about how I want it. I'm just thinking instead of the manufacturers port area recommended 43.75 I should go maybe 55.00 total port area on the box I'm building at 34hz to get the full potential out of my subs. What you think man?

44 cubes net

 

[J-MurdR]

4

 

[Bobbytwonames 5,000+ posts]

2 Svr 12s rms Is 800 a piece, taramps smart 3k I have a clipping light

Those subs can probably handle 1,000-1,200 watts a piece. Just set the gain on your amp just below clipping with your headunit at about 80-90% max volume. (Where the headunit starts to distort)

 

[Buck 5,000+ posts]

I got my design about how I want it. I'm just thinking instead of the manufacturers port area recommended 43.75 I should go maybe 55.00 total port area on the box I'm building at 34hz to get the full potential out of my subs. What you think man?

I’d have to design it some to know for sure. I think you’d be alright with 55 if you mean 4 cubes net.

 

[J-MurdR]

I’d have to design it some to know for sure. I think you’d be alright with 55 if you mean 4 cubes net.

Thanks for the reply Yeah I'm at 4 cubes Net. Port area on the box I'm using now is 43.75 I just feel like I've left alot on the table

 

[Buck 5,000+ posts]

Thanks for the reply Yeah I'm at 4 cubes Net. Port area on the box I'm using now is 43.75 I just feel like I've left alot on the table

I'd have to design it, basically, to tell you what port area exactly I'd go with.