Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Home Theater Bass Box Design

Status
Not open for further replies.

swavvv

Junior Member level 3
Joined
May 7, 2012
Messages
26
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,446
Hi,

I need a home theater bass box for 6 1/2 " & 8" Subwoofer 60W. any one can Help me.
 

Audioguru

Advanced Member level 5
Joined
Jan 19, 2008
Messages
9,251
Helped
2,137
Reputation
4,268
Reaction score
1,960
Trophy points
1,393
Location
Toronto area of Canada
Activity points
58,156
As I said on the other website, a little 6.5" or 8" woofer is too small to produce the very low frequencies (down to 20Hz to 25Hz) of a sub-woofer.
You posted the spec's of a little 6.5" woofer that makes boom-boom sounds at 200Hz. I have 6.5" woofers that are flat down to 52Hz. With some bass-boost they go down to about 35Hz.
Didn't you see the fairly inexpensive 10" REAL sub-woofer with good spec's and enclosure designs that I posted?
 

ALERTLINKS

Advanced Member level 4
Joined
Dec 13, 2003
Messages
1,259
Helped
395
Reputation
784
Reaction score
380
Trophy points
1,363
Location
Pakistan
Activity points
7,263
Different box shapes and different types of boxes.



8040195400_1390375892.jpg

--------------------------------------------------
https://www.quadesl.com/diy_esl1.shtml

1080935900_1390378078.jpg


https://www.quadesl.com/speaker/diyesl/tl_cad.pdf

 

swavvv

Junior Member level 3
Joined
May 7, 2012
Messages
26
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,446
thanks, i think single tuned bandbox box is ok for me for 6 1/2" subwoofer. can you me whats is dimension?
 

Audioguru

Advanced Member level 5
Joined
Jan 19, 2008
Messages
9,251
Helped
2,137
Reputation
4,268
Reaction score
1,960
Trophy points
1,393
Location
Toronto area of Canada
Activity points
58,156
He is not on another website. He has TWO threads about this little woofer here and the first thread is: https://www.edaboard.com/threads/301456/
The cheap little woofer that has a peak in its output at 200Hz and a resonance of 52Hz is linked in post #16 on the other thread.

There is NO WAY the cheap little woofer can sound like a REAL sub-woofer.
 

swavvv

Junior Member level 3
Joined
May 7, 2012
Messages
26
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,446
ok thanks, i will check with this sizes

- - - Updated - - -

i have one more Question, can i use this type box( http://obrazki.elektroda.pl/3410931200_1390114378.jpg ), sub-woofer at a bottom, if this we use, then what is its dimensions required.?
 

Audioguru

Advanced Member level 5
Joined
Jan 19, 2008
Messages
9,251
Helped
2,137
Reputation
4,268
Reaction score
1,960
Trophy points
1,393
Location
Toronto area of Canada
Activity points
58,156
If the dimensions are huge then the little 6.5" woofer will go down to about 50Hz in the type of ported enclosure in your photo. Then one entire octave of sub-woofer sounds will be missing.
The enclosure in post #5 has such a tiny sealed box (0.3 cubic feet) at the rear of the speaker that it will have a peak at about 120Hz then roll off at lower frequencies. No bass.
 

Status
Not open for further replies.

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Top