Enclosure Volume - Page 2

sreten · 13th May 2004, 02:15 PM

Sealed box loading is indicated, though the driver would
work best driven by lowish power and used open baffle.

The driver is not a good subwoofer driver.

Fs is far too high, an octave lower (27Hz) or lower is better.

Qts is also too high, for reflex ~ 0.35 with low Fs is good.

Its a passable bass unit for a big cheap speaker at best.

Low Fs, moderate Q, moderate Vas, reasonable efficiency
and high excursion with low distortion are good.

sreten.

sonu · 14th May 2004, 07:50 AM

OK.......
but I wanna know as how to select a best driver i.e. what parametrs i should look for when selecting.

As i have made this driver on my own, I want to know what all affects the change in VAS, Fs, Q etc for a driver.

Cause now i am making an 15" Driver, so i will select cone, coil, frame and magnet which should give a good thiele parameter as needed.

lucpes · 14th May 2004, 09:38 AM

Edit: Ok, sorry, I know that you did all this but it should help others:

http://www.mhsoft.nl/messen_en.asp - measuring T/S parameters on your own.

You can use a computer with a soundcard for an audio generator:

http://www.nch.com.au/tonegen/index.html

Then, to calculate box/tuning/ported or not, download this:

http://www.linearteam.dk/default.aspx?pageid=winisdpro

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Enclosure volume for HiVi B3S	sploo	Multi-Way	2	3rd April 2007 01:14 PM
Enclosure Volume	Mat_89	Subwoofers	3	19th September 2006 10:27 AM
Help calculate enclosure volume	Sillyboy	Multi-Way	25	5th May 2006 11:22 PM
Sub: Volume of Enclosure with Amp	bigkid	Multi-Way	16	19th July 2003 06:12 AM
Enclosure Volume	r_s_dhar	Multi-Way	16	13th August 2002 06:24 AM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? 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

13th May 2004, 02:15 PM	#11
sreten diyAudio Member Join Date: Nov 2003 Location: Brighton UK	Sealed box loading is indicated, though the driver would work best driven by lowish power and used open baffle. The driver is not a good subwoofer driver. Fs is far too high, an octave lower (27Hz) or lower is better. Qts is also too high, for reflex ~ 0.35 with low Fs is good. Its a passable bass unit for a big cheap speaker at best. Low Fs, moderate Q, moderate Vas, reasonable efficiency and high excursion with low distortion are good. sreten.

14th May 2004, 07:50 AM	#12
sonu diyAudio Member Join Date: Apr 2004 Location: maharashtra	OK....... but I wanna know as how to select a best driver i.e. what parametrs i should look for when selecting. As i have made this driver on my own, I want to know what all affects the change in VAS, Fs, Q etc for a driver. Cause now i am making an 15" Driver, so i will select cone, coil, frame and magnet which should give a good thiele parameter as needed.

14th May 2004, 09:38 AM	#13
lucpes diyAudio Member Join Date: Dec 2003 Location: Iasi	Edit: Ok, sorry, I know that you did all this but it should help others: http://www.mhsoft.nl/messen_en.asp - measuring T/S parameters on your own. You can use a computer with a soundcard for an audio generator: http://www.nch.com.au/tonegen/index.html Then, to calculate box/tuning/ported or not, download this: http://www.linearteam.dk/default.aspx?pageid=winisdpro

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)