bass reflex for Ariel ME2

GAK · 22nd December 2003, 12:46 PM

Hi

I'm building the Ariel ME2 but I can't find pipes with 1" diameter.
It needs two of them.
I'm planning to use one pipe with 3.5cm (1.38")diameter.But how long it is needed to be?
The internal volume of the speaker is 521 cubic inches and the original design has a pair of vents with 1"dia. that are 4,125"long.

Thanks

sreten · 22nd December 2003, 06:43 PM

If your talking internal diameters then the 1.38" pipe will have
1.9 x the area of each 1" pipe making it virtually equivalent to 2.

4" long will be fine IMO.

sreten.

paulspencer · 23rd December 2003, 12:39 AM

The forumula for ports is shown on diysubwoofers.org

Lv = (23562.5*Dv^2*Np/(Fb^2*Vb))-(k*Dv)

where,

Dv = port diameter (cm)
Fb = tuning frequency (Hz)
Vb = net volume (litres)
Lv = length of each port (cm)
Np = number of ports
k = end correction (normally 0.732)

22nd December 2003, 12:46 PM	#1
GAK diyAudio Member Join Date: Apr 2001 Location: Greece	bass reflex for Ariel ME2 Hi I'm building the Ariel ME2 but I can't find pipes with 1" diameter. It needs two of them. I'm planning to use one pipe with 3.5cm (1.38")diameter.But how long it is needed to be? The internal volume of the speaker is 521 cubic inches and the original design has a pair of vents with 1"dia. that are 4,125"long. Thanks __________________ let's boom chitty boom

23rd December 2003, 12:39 AM	#3
paulspencer diyAudio Member Join Date: Sep 2003 Location: Melbourne, Australia	The forumula for ports is shown on diysubwoofers.org Lv = (23562.5Dv^2Np/(Fb^2Vb))-(kDv) where, Dv = port diameter (cm) Fb = tuning frequency (Hz) Vb = net volume (litres) Lv = length of each port (cm) Np = number of ports k = end correction (normally 0.732) __________________ AUDIO BLOG \| Bass integration guide My work: www.redspade.com.au web design studio

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
css bass reflex	paulfk	Full Range	7	8th March 2009 12:25 PM
No bass reflex tube?	Williham	Multi-Way	2	12th December 2007 10:49 AM
Bass reflex box resonance	costin	Subwoofers	15	1st May 2006 08:12 PM
Bass Reflex	Guss	Multi-Way	1	15th December 2003 03:33 AM
bass reflex?	GAK	Multi-Way	2	23rd October 2001 04:04 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

22nd December 2003, 06:43 PM	#2
sreten diyAudio Member Join Date: Nov 2003 Location: Brighton UK	If your talking internal diameters then the 1.38" pipe will have 1.9 x the area of each 1" pipe making it virtually equivalent to 2. 4" long will be fine IMO. sreten.

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