Car subs for home theatre - Page 9

navin · 7th June 2007, 07:03 AM

Quote:

Originally posted by Vivek
So shall I go ahead and build two 60L boxes? .

Yes.

richie00boy · 7th June 2007, 08:43 AM

Was Bjorno's design not 50 litres? It doesn't matt too much anyway as you should measure the speaker once in the box to design the Linkwitz Transform.

Considering most commercial subs are vented and probably only hit 40Hz anechoically, I think you will find 30Hz pretty good, so there is room for relaxing that requirement a little IMO.

Just take care that the box is well braced.

Vivek · 7th June 2007, 09:29 AM

I am going to start construction tomorrow. I will post pics soon.

Vivek · 7th June 2007, 04:46 PM

Richie, Bjorno had calculated for 50L boxes. But I thought of building 60L boxes just to accommodate braces. And an amp module in case I decide to put it in the box. If the box is too big, I could always put a couple of bricks or something else to reduce volume.

richie00boy · 7th June 2007, 04:54 PM

Yes that's a good idea Vivek. As I said anyway it's not critical as you will check/measure the final design anyway.

Vivek · 8th June 2007, 02:42 PM

The MDF is all cut. A couple of measurements went wrong. Thankfully, the boards are a little too big and not short.

7th June 2007, 08:43 AM	#82
richie00boy Did it Himself diyAudio Member Join Date: Nov 2003 Location: Gloucestershire, England, UK	Was Bjorno's design not 50 litres? It doesn't matt too much anyway as you should measure the speaker once in the box to design the Linkwitz Transform. Considering most commercial subs are vented and probably only hit 40Hz anechoically, I think you will find 30Hz pretty good, so there is room for relaxing that requirement a little IMO. Just take care that the box is well braced. __________________ www.readresearch.co.uk my website for UK diy audio people - designs, PCBs, kits and more

7th June 2007, 09:29 AM	#83
Vivek diyAudio Member Join Date: Nov 2000 Location: Bangalore, India	I am going to start construction tomorrow. I will post pics soon. __________________ Thank God for DIY audio.

7th June 2007, 04:46 PM	#84
Vivek diyAudio Member Join Date: Nov 2000 Location: Bangalore, India	Richie, Bjorno had calculated for 50L boxes. But I thought of building 60L boxes just to accommodate braces. And an amp module in case I decide to put it in the box. If the box is too big, I could always put a couple of bricks or something else to reduce volume. __________________ Thank God for DIY audio.

7th June 2007, 04:54 PM	#85
richie00boy Did it Himself diyAudio Member Join Date: Nov 2003 Location: Gloucestershire, England, UK	Yes that's a good idea Vivek. As I said anyway it's not critical as you will check/measure the final design anyway. __________________ www.readresearch.co.uk my website for UK diy audio people - designs, PCBs, kits and more

8th June 2007, 02:42 PM	#86
Vivek diyAudio Member Join Date: Nov 2000 Location: Bangalore, India	The MDF is all cut. A couple of measurements went wrong. Thankfully, the boards are a little too big and not short. __________________ Thank God for DIY audio.


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