PB13-Ultra Excursion

This video demonstrates excursion and air displacement from the SVS PB13 Ultra subwoofer

Category:

Music

Tags:

• pb13
• svs
• bassotronics
• excursion
• subwoofer

[sobe3yourself]

wouldnt the tuning go down if you unplug the aeros? you are saying that the tuning rises with less ports?

[postbuske]

@sobe3yourself

1 plug = 20Hz tuning, default, highest SPL output

2 plug = 15Hz tuning, stil high SPL output and good depth

3 plug = 10Hz tuning, but output (SPL) noticable lower

I think this can be explained when you look at math formulas of a Helmholtz resonator application.

These tubes have a certain lenght, diameter and a volume of air inside.

When you "close" 1 port you loose some of these aspects compared to 3 open "pipes". Looking at the formula this means lower resonance frequency.

[zunit128]

the surround is collapsing

[postbuske]

@kraftdinner18

What do you mean by "3 vent" ? You mean the 3 ports ?

This sub supports various tunings. As you see, 1 port plugged means tuned to 15Hz, 2 ports plugged = 10Hz tuning en no ports blocked = 20Hz tuning.

[buitrami]

The surround is collapsing because it's not a long throw woofer. Not designed to take such loads.

[FlammingSkelleton]

wow u must be very happy for having that lol and very rich too

[postbuske]

@DSM930HP ... you're right, the sub was reaching its limits...it was time to throttle back slightly ;-)

[DSM930HP]

@zunit128 is it just me or is the sub reaching its xmax.?

[BBTthetank]

@pataspata 'Bass I love you' by Bassotronics

[Jugganaut88]

@postbuske Yup. It's physics and air pressure.

[Rippner85]

ебать у него аж подвес ломается

[sunnyjason]

good way to break your sub

[kamisakea]

@postbuske Aah, good to hear that you're not forcing it! :D