Audio Nirvana 2.8 cabinets

ziocalepino · 4th September 2011, 06:53 PM

Hi, I've seen AUdio Nirvana 2.8 cabinets for 12" speakers. Do you know if they are "empty" cabinets or have some diaphragm inside?
Thansk all
Ziocalepino

planet10 · 4th September 2011, 08:12 PM

They are big empty boxes (if you ignore damping material) with holes in the front (3/4" deep ports), and one size fits all.

dave

avincenty · 4th September 2011, 08:27 PM

I built one of those. It is a box with a reinforcement close to the center of the box. It is one piece that looks like a square edge 8.

Alfredo

ziocalepino · 5th September 2011, 04:31 AM

Many thanks. Is it possible to see few pictures of inside?

avincenty · 5th September 2011, 03:34 PM

I found a build picture

More pictures of the build here

Alfredo

ziocalepino · 5th September 2011, 04:27 PM

Wow ALfredo great answer! Many thanks! Few more quesitons if you can:

- distance of centre of tho holes from top of cabinet
- diameter of bass reflex hole

And, of course, how do these drivers sound?

Again many thanks!

PS: are you of italian origin?

avincenty · 5th September 2011, 05:32 PM

29 1/4 inch from bottom of speaker to the center of the driver.
13 1/2 to the center of 6 inch port.

If you buy the drivers from commonsense audio they will include the cabinet plans.

How do the sound?

I like them a lot for Jazz and vocals. Do not prefer them for loud Rock, too much shout. In the past few days I have been playing with a minidsp 2x4 and I have tamed them for Rock. I use a different source on my preamp to select the unfiltered versus the minidsp.

Italian? 5th generation Caribbean Corsican.

Alfredo

ziocalepino · 5th September 2011, 06:16 PM

Ok undestood.

I know if you buy drivers commonsense audio gives you plans too. The fact is that I have to build these cabinets for a friend who bought used drivers and he has no plans. But with your indications I think I've all in my hands. The project is very similar to Fostex FE206 Bass Reflex that I've built last year. Dimensions are greater but the concept seems the same.

I use Tang Band speakers and Lowther too, expecially these last. I've built Bicor 200 and Acousta 116 cabinets for Lowther.

If you want to share some tips I'll appreciate.

Thanks for all

avincenty · 5th September 2011, 09:34 PM

As you can see from the pictures, I used R30 insulation and stapled it with a pneumatic stapler, it compresses the insulation nicely. I also used pocket holes and glue to build the box. It is much quicker this way as I did not need to use clamps. I then filled the pocket holes with glue and dowel. Making the box is very easy, veneering is more work. I used the glue/hot iron method. Plenty of wood on one veneer side and the box sides. Two coats each. Once dry, use a hot iron to bond the veneer to the box.

Good luck.

Alfredo

ziocalepino · 6th September 2011, 06:58 AM

To assembly my cabinets I use buscuit jointer glue and clamps. I do not know "pocket holes" technique.

To veneer I use classic yellow glue. I think it will be not so simply with a so big enclosure...

4th September 2011, 06:53 PM	#1
ziocalepino diyAudio Member Join Date: Mar 2010	Audio Nirvana 2.8 cabinets Hi, I've seen AUdio Nirvana 2.8 cabinets for 12" speakers. Do you know if they are "empty" cabinets or have some diaphragm inside? Thansk all Ziocalepino

4th September 2011, 08:12 PM	#2
planet10 frugal-phile(tm) diyAudio Moderator Join Date: Oct 2001 Location: Victoria, BC, NA, Sol III Blog Entries: 4	They are big empty boxes (if you ignore damping material) with holes in the front (3/4" deep ports), and one size fits all. dave __________________ community sites t-linespeakers.org, frugal-horn.com ........ commercial site planet10-HiFi p10-hifi forum here at diyA

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4th September 2011, 08:27 PM	#3
avincenty diyAudio Member Join Date: Jan 2008 Location: Southern California	I built one of those. It is a box with a reinforcement close to the center of the box. It is one piece that looks like a square edge 8. Alfredo

5th September 2011, 04:31 AM	#4
ziocalepino diyAudio Member Join Date: Mar 2010	Many thanks. Is it possible to see few pictures of inside?

5th September 2011, 03:34 PM	#5
avincenty diyAudio Member Join Date: Jan 2008 Location: Southern California	I found a build picture More pictures of the build here Alfredo

5th September 2011, 04:27 PM	#6
ziocalepino diyAudio Member Join Date: Mar 2010	Wow ALfredo great answer! Many thanks! Few more quesitons if you can: - distance of centre of tho holes from top of cabinet - diameter of bass reflex hole And, of course, how do these drivers sound? Again many thanks! PS: are you of italian origin?

5th September 2011, 05:32 PM	#7
avincenty diyAudio Member Join Date: Jan 2008 Location: Southern California	29 1/4 inch from bottom of speaker to the center of the driver. 13 1/2 to the center of 6 inch port. If you buy the drivers from commonsense audio they will include the cabinet plans. How do the sound? I like them a lot for Jazz and vocals. Do not prefer them for loud Rock, too much shout. In the past few days I have been playing with a minidsp 2x4 and I have tamed them for Rock. I use a different source on my preamp to select the unfiltered versus the minidsp. Italian? 5th generation Caribbean Corsican. Alfredo

5th September 2011, 06:16 PM	#8
ziocalepino diyAudio Member Join Date: Mar 2010	Ok undestood. I know if you buy drivers commonsense audio gives you plans too. The fact is that I have to build these cabinets for a friend who bought used drivers and he has no plans. But with your indications I think I've all in my hands. The project is very similar to Fostex FE206 Bass Reflex that I've built last year. Dimensions are greater but the concept seems the same. I use Tang Band speakers and Lowther too, expecially these last. I've built Bicor 200 and Acousta 116 cabinets for Lowther. If you want to share some tips I'll appreciate. Thanks for all

5th September 2011, 09:34 PM	#9
avincenty diyAudio Member Join Date: Jan 2008 Location: Southern California	As you can see from the pictures, I used R30 insulation and stapled it with a pneumatic stapler, it compresses the insulation nicely. I also used pocket holes and glue to build the box. It is much quicker this way as I did not need to use clamps. I then filled the pocket holes with glue and dowel. Making the box is very easy, veneering is more work. I used the glue/hot iron method. Plenty of wood on one veneer side and the box sides. Two coats each. Once dry, use a hot iron to bond the veneer to the box. Good luck. Alfredo

6th September 2011, 06:58 AM	#10
ziocalepino diyAudio Member Join Date: Mar 2010	To assembly my cabinets I use buscuit jointer glue and clamps. I do not know "pocket holes" technique. To veneer I use classic yellow glue. I think it will be not so simply with a so big enclosure...

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