Subwoofer enclosure design

[AndrewT]

post19 will go deeper and louder and have lower distortion if all 4drivers use their Sd against the air load.

Isobaric wastes half your Sd.

Is post19 a type of bandpass, or just a mess?

[aznboi3644]

Post 19 is just a simple 6th order parallel tuned bandpass enclosure.

But with three chambers and isobaric loading the drivers to reduce enclosure size.

[pra3718]

Thank you AndrewT, aznboi3644

Right now, I have 2 drivers isobaric incloser ( I can post Photo ) I am satisfied with deepness but not with loudness (because of 22 + 22 watt amp ) Amps already purchased and I want to use it.

Isobaric wastes half your Sd.

@ AndrewT as I understood, I am loosing the loudness & half encloser size is the advantage.

AndrewT, If you have 4 drivers (8" 4 Ohms) & 4 amp (22 watt). How would you like to manage ? I wish to make more sound wave which come out via port as possible.

Thank you
Regards.

[Andy_62]

Hi all,
for the ones interested i a really excellent sub, check TNT audio for the article in English as I can post this link : http://www.tnt-audio.com/clinica/trent.html which is only Italian.

You will be amazed.

Cheers
Andy