MTM Design Pics

Vikash · 24th September 2003, 10:27 PM

The enclosure is currently under construction, but I got round to uploading the pics with some blurb.

Mos Fetish · 25th September 2003, 12:09 AM

Nice pics. Good captions. Looking good. Congrats so far.

Mos

Guss · 25th September 2003, 02:03 AM

Good woodworking, no bracing ?

Vikash · 25th September 2003, 09:24 AM

The bracing will be added later. Although the last pic shows both side panels attached, only one is actually fixed permanantly. The other will be glued and fixed in after the bracing goes in.

I've had a change of heart, and going to change it into a sealed design.

getafix · 28th September 2003, 12:44 AM

to get the required volume of your enclosure, for the sealed enclosure, did you just get the required volume of one woofer then multiplied it by 2?

Guss · 28th September 2003, 05:15 AM

When a company submit the T/S for a specific driver, do they care about the air gap behind the cone and the volume of the driver itself or it has nothing to do with the needed enclosure size? Do we have to care about its volume when we compute a box ?

Vikash · 28th September 2003, 10:18 AM

Quote:

to get the required volume of your enclosure, for the sealed enclosure, did you just get the required volume of one woofer then multiplied it by 2?

I model both drivers together (wired in parallel) using Unibox and let the app spit out the numbers.

Quote:

When a company submit the T/S for a specific driver, do they care about the air gap behind the cone and the volume of the driver itself or it has nothing to do with the needed enclosure size? Do we have to care about its volume when we compute a box ?

Whether the manufacturers care or not, I don't know. But you should take the driver displacement into account when designing a box, more so for large drivers as the basket/magnet structures can be of some significant volume (although this is minor in most cases).

I use the volume of a frustrum cone to calculate speaker displacement.

24th September 2003, 10:27 PM	#1
Vikash diyAudio Moderator Emeritus Join Date: May 2003 Location: UK	MTM Design Pics The enclosure is currently under construction, but I got round to uploading the pics with some blurb. __________________ "The human mind is so constituted that it colours with its own previous conceptions any new notion that presents itself for acceptance." - J. Wilhelm. (But I still think mine sounds better than yours.)

25th September 2003, 09:24 AM	#4
Vikash diyAudio Moderator Emeritus Join Date: May 2003 Location: UK	The bracing will be added later. Although the last pic shows both side panels attached, only one is actually fixed permanantly. The other will be glued and fixed in after the bracing goes in. I've had a change of heart, and going to change it into a sealed design. __________________ "The human mind is so constituted that it colours with its own previous conceptions any new notion that presents itself for acceptance." - J. Wilhelm. (But I still think mine sounds better than yours.)

28th September 2003, 12:44 AM	#5
getafix diyAudio Member Join Date: Jun 2003 Location: somewhere in Mandaluyong	to get the required volume of your enclosure, for the sealed enclosure, did you just get the required volume of one woofer then multiplied it by 2? __________________ forever dreaming of a better set-up...

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25th September 2003, 12:09 AM	#2
Mos Fetish diyAudio Member Join Date: Feb 2003 Location: New Zealand	Nice pics. Good captions. Looking good. Congrats so far. Mos

25th September 2003, 02:03 AM	#3
Guss diyAudio Member Join Date: Jun 2003 Location: Montreal	Good woodworking, no bracing ?

28th September 2003, 05:15 AM	#6
Guss diyAudio Member Join Date: Jun 2003 Location: Montreal	When a company submit the T/S for a specific driver, do they care about the air gap behind the cone and the volume of the driver itself or it has nothing to do with the needed enclosure size? Do we have to care about its volume when we compute a box ?

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