Disko Civic Demobuild "Night Demos" (2 x 15" in a BP Wall )

My friend owns this project. This is an older Civic with two 15"s in a 6th order bandpass wall. Subs are from Decaf Astra ( MDS Proto 15" ) and they are powered by Focus Acoustics 5500D amp.

[@KnowName33]

Good lord I had 2 15's in my CRX did a 147db at 33hz so I know how much they flex in the high 140's and that monster is flexing WAY more then I ever did you have to be doing 155's on music or more

[@iSCOPEXZatec]

156db+ metered 5500wats

[@artyz3242]

@@iSCOPEXZatec actually 153db but easily cabable for +155db

[@iSCOPEXZatec]

@@artyz3242 Ari meikälle sano aikanaan että. 156db tästä lähti lukua

[@artyz3242]

@@iSCOPEXZatec Saatto ollakki. Voi olla että muistan väärin :D

[@jumppelis160]

Got jelly!

[@PsiGodracing]

2 15s wow they get down

[@pogodafreeride]

Box specs ? Tuning, volume please ! Got two 15 to play around my self

[@iSCOPEXZatec]

320 liters lower chamber tuned to 23-24hz and 300liters high chamber. And u with port tune the control to your subs

[@iSCOPEXZatec]

So ratio is about 1:1

[@pogodafreeride]

@@iSCOPEXZatec Thanks for that, already got my box build ratio 1:1.5 bottom chamber 226l tuned to 25hz and top 340l tunned to 50hz :D once I ll get it all set might post a video ! : D

[@iSCOPEXZatec]

@@pogodafreeride yea np , this box does 155db on a just 5.5kw

[@pogodafreeride]

@@iSCOPEXZatec Crazy number !! I got mine running at 1.8kw rms atm kzbin.info/www/bejne/oZi3hn6uhpt3js0 will hopefully get 5kw amp to run subwoofer soon though !

[@eduardoherrera4385]

What is the diameter of the internal port?

[@TToums]

Eduardo Herrera u mean that aeroport between chambers? its 6" aeroport.

[@eduardoherrera4385]

TToums How many ft³ do you have in the sealed and ported chamber?

[@TToums]

Basicly this is not my car. This is my friends civic. The enclosure is a 6th order so both chambers are ported, between the chambers is 1 x 6" aeroport and the second port is a regular slotport. I cant remember the chambers volymes. Sorry :(

[@artyz3242]

@@TToums Emmääkä niitä muista

[@luie771]

what subs? power?

[@TToums]

These are MDS prototype 15" subs, only few are out there. There is one 5500D Focus Acoustics amp powering these sub's.

[@chrisharrison290]

box design??

[@TToums]

Its a 6th order bandpass wall enclosure. Cant remember ratios sorry :(

[@dawn9340]

Hey man, I've been looking around trying to figure out how the Decaf Astra "works" at such low frequencies and I thought you might be able to help. You're welcome to look at the thread on SMD forums about my hypothesis which is located here www.stevemeadedesigns.com/board/topic/208927-decaf-astra-question/ Thanks a ton!