BL units for Markaudio drivers

pizzachef · 5th August 2011, 03:11 AM

I am not that experienced with drivers, so I have to admit I am not familiar with "Gm/cm" used by MarkAudio as a unit for the Thiele BL variable. How does this convert to the more common "N/amp"? The conversion must be close to 1:1 as the values seem to be in the same numerical range as driver N/amp values

kristleifur · 5th August 2011, 11:07 AM

Hmm ... multiply by 10 it seems!

Ratio: (1 newton per ampere / 1 grams per centimeter - Google Search)

Conversion: 1 gram per centimeter * (1 newton per ampere / 1 grams per centimeter) in newtons per ampere - Google Search

pizzachef · 5th August 2011, 02:47 PM

Thanks - You had a much more clever way of doing the google search. I think 10x is high though. It would yield unreasonable numbers like 38.3 N/amp for the Alpair 7 which seems really high

markaudio · 5th August 2011, 10:17 PM

Hi Guys,
Apologies for any confusion. We use G/cm during our testing phases. Its easier for us to calculate loads on the power-train. For published results, we switch to T.m. I forgot to set this facility on LMS. We'll go back and re-calculate using LMS. Give me a few days to sort this out, I'll up-date this parameter for Alpair 7 Gen 3, CHR-70 Gen.3, CHP-70 Gen 2. and CHBW Gen 1.

Cheers

Mark.

5th August 2011, 03:11 AM	#1
pizzachef diyAudio Member Join Date: Aug 2011	BL units for Markaudio drivers I am not that experienced with drivers, so I have to admit I am not familiar with "Gm/cm" used by MarkAudio as a unit for the Thiele BL variable. How does this convert to the more common "N/amp"? The conversion must be close to 1:1 as the values seem to be in the same numerical range as driver N/amp values

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
Zigmahornet with Markaudio drivers?	StevenZ	Markaudio	13	26th May 2011 05:09 PM
FS: Fostex, MarkAudio drivers, Cabinets	ped	Swap Meet	21	26th August 2010 02:25 PM
5.1 system with Markaudio drivers?	Rick J. B.	Markaudio	17	4th January 2010 05:53 PM
FS: MarkAudio Alpair 10FR drivers	cs	Swap Meet	3	31st July 2009 01:44 PM

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

5th August 2011, 11:07 AM	#2
kristleifur diyAudio Member Join Date: Apr 2006 Location: Reykjavík	Hmm ... multiply by 10 it seems! Ratio: (1 newton per ampere / 1 grams per centimeter - Google Search) Conversion: 1 gram per centimeter * (1 newton per ampere / 1 grams per centimeter) in newtons per ampere - Google Search

5th August 2011, 02:47 PM	#3
pizzachef diyAudio Member Join Date: Aug 2011	Thanks - You had a much more clever way of doing the google search. I think 10x is high though. It would yield unreasonable numbers like 38.3 N/amp for the Alpair 7 which seems really high

5th August 2011, 10:17 PM	#4
markaudio diyAudio Member Join Date: Nov 2008	Hi Guys, Apologies for any confusion. We use G/cm during our testing phases. Its easier for us to calculate loads on the power-train. For published results, we switch to T.m. I forgot to set this facility on LMS. We'll go back and re-calculate using LMS. Give me a few days to sort this out, I'll up-date this parameter for Alpair 7 Gen 3, CHR-70 Gen.3, CHP-70 Gen 2. and CHBW Gen 1. Cheers Mark.