Can rise be controlled

[Smoove]

Can rise be controlled more in a sealed box or ported box?

[diegoclass2010]

i think it applys to both but ill let someone else chime in on this...

from my experience making box volume smaller made impedance lower, and making box volume bigger increased impedance

[Joe X]

You can easily control where your impedance drops in a ported box by setting tuning. Box size changes an impedance curve both in sealed and ported boxes. So both types give you control but the ported one gives you an extra way to do it.

[Triticum Agricolam]

Like others have said, making the box larger will increase the impedance and making it smaller will decrease it. Impedance is tied to efficiency. As impedance increase so does the box efficiency, you get more output on less watts. Trying to lower impedance through different box design is actually counter-productive and will decrease output, generally speaking.

[Smoove]

So sealed box isn't more efficient. It can still be to big and allow for more rise. Does polyfill in a sealed box have the same effect?
Thanks.

[Triticum Agricolam]

Stuffing a sealed box lower the QTC, just like making it bigger does. But it also lowers the impedance and efficiency, unlike making the box bigger.

[hispls]

Can rise be controlled more in a sealed box or ported box?

Unless you only intend to play 1 frequency ever you really do not need to worry about your impedance curve.

Assuming you're doing DB Drag and have a one note build you should head on over to parts express and buy Dayton DATS to run impedance sweeps (if you care) and/or buy a good quality DMM and current clamp meter. From there it's probably going to be easier/cheaper to change coils, or change amps to get the correct impedance than to keep building boxes.

[Smoove]

Can rise be controlled more in a sealed box or ported box?

Unless you only intend to play 1 frequency ever you really do not need to worry about your impedance curve.

Assuming you're doing DB Drag and have a one note build you should head on over to parts express and buy Dayton DATS to run impedance sweeps (if you care) and/or buy a good quality DMM and current clamp meter. From there it's probably going to be easier/cheaper to change coils, or change amps to get the correct impedance than to keep building boxes.

I know I'll never get rid if rise. It gonna be there no matter what. I'm getting ready to build a sealed box. I am debating on size of rhe box and the amp. If I can make the sealed see less rise when burping for fun than I will get a non-CP amp. otherwise I will find a CP amp worry less.