My DIY Subwoofer -Focal 30a1 - diyAudio
Go Back   Home > Forums > Loudspeakers > Subwoofers
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Thread Tools Search this Thread
Old 7th May 2008, 03:48 PM   #1
bego2 is offline bego2  Croatia
diyAudio Member
Join Date: Aug 2007
Default My DIY Subwoofer -Focal 30a1

Heloo. I`m new in diy audio...i have bought focal 30a1 subwoofer for car audio...


I used chipboard 18mm, it`s cheaper and still good..The box is tuned to 50hz whit this port and has 45,210L.

Pics of "project", sorry but pics are mixed up

psu and amplifer. amplifer is kenwood kac626 for car. i used an psu power supply for computer it`s chiftek 400w... on 12V it has 25A but i don`t believe.

For finish i use cotto veneer and oak lacquer i think. The bass i bad meening good. I can`t stand next to him

I`m thinking to make a low pass active filter...but i have time later...

So what do you guys think?
  Reply With Quote
Old 7th May 2008, 05:29 PM   #2
sreten is offline sreten  United Kingdom
diyAudio Member RIP
Join Date: Nov 2003
Location: Brighton UK

Fs 37.4 Hz
Vas 52.97 I
Qts 0.42
Qes 0.45
Qms 6.37
Re 3.2 ohms
Sd 510.71 cm2
Cas 3.77E-07 m5/N
Mas 48.02 kg/m4
Ras 1771.39
Cms 1.45E-04 m/N
Mms 125.24 g
Rms 4.62 kg/s
Ces 598.43 mF
Les 30.26 mH
Res 45.3 ohms
BI 14.47 N/A
SPL 89.73 dB/W/m

Hi, for 45L vent tuning at 50Hz is far too high, 30Hz to 33Hz IMO, /sreten.
Attached Images
File Type: jpg guff.jpg (91.9 KB, 244 views)
  Reply With Quote
Old 7th May 2008, 06:19 PM   #3
Vivek is offline Vivek  India
diyAudio Member
Join Date: Nov 2000
Location: Bangalore, India
Great job. I have made subwoofers for HT with two Infinity car sub drivers. I could try what you have done.

Thank God for DIY audio.
  Reply With Quote
Old 7th May 2008, 07:15 PM   #4
bego2 is offline bego2  Croatia
diyAudio Member
Join Date: Aug 2007
yes, yes. i forgot to say. The box should be tunned for 34hz but i didn`t found appropriate bassrefleks, i will extend existing bassrefleks with plastic water pipes.
  Reply With Quote


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Focal VX33 13" subwoofer: looking for T/S parameters madstamm Subwoofers 2 5th July 2007 04:26 PM
Looking For Focal audiom 7k2 or focal 7k6411 jasonyap Multi-Way 0 29th March 2007 06:46 AM
how to connect a non powered subwoofer to a stereo system without a subwoofer output JSD777 Multi-Way 4 20th September 2005 03:19 PM
MTM design FOCAL 6W4311 AND FOCAL Focal TC120 Tdx2 Bas Horneman Multi-Way 1 5th February 2003 04:21 PM

New To Site? Need Help?

All times are GMT. The time now is 05:38 PM.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1999-2017 diyAudio

Content Relevant URLs by vBSEO 3.3.2