SOVEREIGN 12-200LT - what do?

gafhenderson · 02:20 PM

i've just picked up 2x SOVEREIGN 12-200LT for £40 (impulse buy) from local classifieds listed as new in box. guess my fullrange driver i was looking for is kinda sorted now.

i looked on the Fane website and they have pretty good looking response to 8k then they die on their ****, so they're probably going to need a tweeter at some point. will decide after listening.

until then i want to try them out on their own in the up-to 8-10k region which should be ok for acoustic type stuff?

they're mentioned on a thread on here, that the person attached a phase plug to sit on the secondary cone. as far as i understand this helps with high end. any use for me before the tweeter is possibly added?

what type of enclosure should i try and put these in? standard ported enclosure doesn't really fill me with excitement....

jrevillug · 23rd February 2012, 06:24 PM

You could try a BiB - but it'll be massive:

A quick spreadsheet calc gives 68" tall (for Fs = 50Hz, so Fp = 25Hz), 25.5" wide, and 35.5" deep.

Eep.

gafhenderson · 23rd February 2012, 06:34 PM

Quote:

Originally Posted by jrevillug

You could try a BiB - but it'll be massive:

A quick spreadsheet calc gives 68" tall (for Fs = 50Hz, so Fp = 25Hz), 25.5" wide, and 35.5" deep.

Eep.

well i have some TQWT's drawn up that seem to be working ok, tuned to 60hz.

579x795x427mm which will need a pair of stands to get a 42" listening height. i measured them with hornresp (i think

) and they seem ok but not really 'spectacular', the left graph. right is the subwoofer which will likely only be on for use in movies or bass heavy music - so not that a huge amount.

can i have a link to the BiB designs? i presume this is the 'bigger is better' i have seen coined a few times? i don't mind big as long as it justifies the size.

jrevillug · 23rd February 2012, 06:41 PM

BiB:

Terry Cain's BIB -why does it work and does anyone have those Fostex Craft Handbooks?

BBBiB (with Eminence Beta 12LTA - similar in concept to yours):
BBBIB Bigger Badder BIB Speaker

gafhenderson · 23rd February 2012, 06:41 PM

Quote:

Originally Posted by jrevillug

BiB:

Terry Cain's BIB -why does it work and does anyone have those Fostex Craft Handbooks?

BBBiB (with Eminence Beta 12LTA - similar in concept to yours):
BBBIB Bigger Badder BIB Speaker

many thanks.

gafhenderson · 23rd February 2012, 06:46 PM

i'm also not going to start and complain about the amount of filth given by google when using 'bigger is better 12 inches'

jrevillug · 23rd February 2012, 06:47 PM

Quote:

Originally Posted by gafhenderson

i'm also not going to start and complain about the amount of filth given by google when using 'bigger is better 12 inches'

EDIT: can you tell I've been thinking about BiBs just lately? :P

gafhenderson · 23rd February 2012, 06:51 PM

ok BiB is pretty appealing BUT! do i really need to extend down as low as those designs go if i have a subwoofer available? especially one that is already about the size of a small woman?

jrevillug · 23rd February 2012, 06:57 PM

Might work well in OB, perhaps (Qts looks about right, IIRC)- 'specially with a sub to fill out the bottom end.

gafhenderson · 23rd February 2012, 08:13 PM

Quote:

Originally Posted by jrevillug

Might work well in OB, perhaps (Qts looks about right, IIRC)- 'specially with a sub to fill out the bottom end.

is there a calculator for such things?

23rd February 2012, 02:16 PM	#1
gafhenderson diyAudio Member Join Date: Jan 2012	SOVEREIGN 12-200LT - what do? i've just picked up 2x SOVEREIGN 12-200LT for £40 (impulse buy) from local classifieds listed as new in box. guess my fullrange driver i was looking for is kinda sorted now. i looked on the Fane website and they have pretty good looking response to 8k then they die on their ***, so they're probably going to need a tweeter at some point. will decide after listening. until then i want to try them out on their own in the up-to 8-10k region which should be ok for acoustic type stuff? they're mentioned on a thread on here, that the person attached a phase plug to sit on the secondary cone. as far as i understand this helps with high end. any use for me before the tweeter is possibly added? what type of enclosure should i try and put these in? standard ported enclosure doesn't really fill me with excitement.... Last edited by gafhenderson; 23rd February 2012 at 02:20 PM. Reason: wrong picture*

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23rd February 2012, 06:24 PM	#2
jrevillug diyAudio Member Join Date: Aug 2006	You could try a BiB - but it'll be massive: A quick spreadsheet calc gives 68" tall (for Fs = 50Hz, so Fp = 25Hz), 25.5" wide, and 35.5" deep. Eep.

23rd February 2012, 06:41 PM	#4
jrevillug diyAudio Member Join Date: Aug 2006	BiB: Terry Cain's BIB -why does it work and does anyone have those Fostex Craft Handbooks? BBBiB (with Eminence Beta 12LTA - similar in concept to yours): BBBIB Bigger Badder BIB Speaker

23rd February 2012, 06:46 PM	#6
gafhenderson diyAudio Member Join Date: Jan 2012	i'm also not going to start and complain about the amount of filth given by google when using 'bigger is better 12 inches'

23rd February 2012, 06:51 PM	#8
gafhenderson diyAudio Member Join Date: Jan 2012	ok BiB is pretty appealing BUT! do i really need to extend down as low as those designs go if i have a subwoofer available? especially one that is already about the size of a small woman?

23rd February 2012, 06:57 PM	#9
jrevillug diyAudio Member Join Date: Aug 2006	Might work well in OB, perhaps (Qts looks about right, IIRC)- 'specially with a sub to fill out the bottom end.