VR-4 II bass module clone

Hezz · 22nd February 2007, 02:05 AM

I am trying to build some smallish floor standing speakers that have killer fast and deep bass in a modest enclosure size.

The most promising approach seems to be that used in the Von Schweikert VR-4,6, and 8 bass modules. Four internal cavities all tuned to different frequencies between 20 - 40 Hz. Two ports interact with the outside and are aperiodic. Unknown if the internal ports are aperiodic.

This seems to me to be the king of the cloning projects. Or at least just trying to replicate the alignment with similar drivers.

Anyone tried this or have information or links to pictures or papers on the VR-4 bass module alignments. Or any picture or sketches of construction details.

I tried doing a search for old threads but came up with nothing.

Any interest?

Hezz · 22nd February 2007, 03:29 AM

Further research seems to indicate that the tuning is a triple chamber mass loaded transmission line. Different internal dampening is used around two different drivers to tune each driver to different Q and to give the total line a varied resonant signature.

Have any of you TL builders out there tried to duplicate this approach.

22nd February 2007, 02:05 AM	#1
Hezz diyAudio Member Join Date: Dec 2002 Location: Utah	VR-4 II bass module clone I am trying to build some smallish floor standing speakers that have killer fast and deep bass in a modest enclosure size. The most promising approach seems to be that used in the Von Schweikert VR-4,6, and 8 bass modules. Four internal cavities all tuned to different frequencies between 20 - 40 Hz. Two ports interact with the outside and are aperiodic. Unknown if the internal ports are aperiodic. This seems to me to be the king of the cloning projects. Or at least just trying to replicate the alignment with similar drivers. Anyone tried this or have information or links to pictures or papers on the VR-4 bass module alignments. Or any picture or sketches of construction details. I tried doing a search for old threads but came up with nothing. Any interest?

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
SWR Mo'bass PA module	lundborg	Solid State	1	2nd July 2008 12:55 PM
BAM bass boost clone	kephaudio	Multi-Way	1	26th October 2007 10:47 AM
Bass of Proac 2.5 clone	Ivan2006	Multi-Way	1	23rd October 2006 09:21 AM
Making cabinet for the bass module of Edgar eVeII	andy2	Multi-Way	0	10th April 2005 06:54 PM
Gain Clone Entry Module? Corcom fuseable with switch.	KevinLee	Swap Meet	0	24th April 2003 02:34 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 February 2007, 03:29 AM	#2
Hezz diyAudio Member Join Date: Dec 2002 Location: Utah	Further research seems to indicate that the tuning is a triple chamber mass loaded transmission line. Different internal dampening is used around two different drivers to tune each driver to different Q and to give the total line a varied resonant signature. Have any of you TL builders out there tried to duplicate this approach.

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