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New 12" Full-Range: Fane 12-250TC
New 12" Full-Range: Fane 12-250TC
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Old 28th November 2017, 07:58 AM   #301
globalplayer is offline globalplayer  Germany
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Ok. You got me convinced. Boxes will stay closed.
Thanks.
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Old 28th November 2017, 08:11 AM   #302
KaffiMann is offline KaffiMann  Norway
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New 12" Full-Range: Fane 12-250TC
Much better to use closed boxes for tops.

Only thing is if you're going to feed them several hundreds of watts continously (certainly not me) it's nice to have some cooling.
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Old 28th November 2017, 10:11 AM   #303
globalplayer is offline globalplayer  Germany
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Yes. I plan to use them for PA/parties/outdoor also that's why I came up with the idea to go ported because of cooling. On the other hand SQ will suffer. Crossed over at 120Hz they should survive quite a bit on continous high power (250W) hopefully.
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Old 28th November 2017, 07:54 PM   #304
freddi is offline freddi  United States
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New 12" Full-Range: Fane 12-250TC
its a reaonalby tough driver and IIRC would take around 15V at 20Hz in free air without hitting the back plate. I might put it back into a Karlsonator12 (fb ~37Hz) and see how much upper bass peaking really occurs.
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Old 30th November 2017, 04:57 AM   #305
globalplayer is offline globalplayer  Germany
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What`s the deal with the Karlson enclosures? I saw a lot of projects on this site. Google brings up a lot of mixed reviews.
Regarding the Fane I measured and EQ'd it flat which was kind of boring, then suit to taste which was very nice although kind of boring also.
Then I switched the EQ off and now it is far from linear or ideal but somehow I like it better.
So after 3 days of heavy EQing I went back to no EQ at all. Sounds more "natural" to me.
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Old 30th November 2017, 08:00 AM   #306
KaffiMann is offline KaffiMann  Norway
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New 12" Full-Range: Fane 12-250TC
Yes, I agree.

Heavy eq sounds "lifeless" somehow, no eq sounds really dynamic and "live".
I am still experimenting to try and find the best median, a little bit of padding down goes a long way, but you still miss some of the transient response on snare/unfiltered kick/high tom/707 or 808 with hard kick (where the first part of the sound is a completely vertical spike).
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Old 30th November 2017, 02:31 PM   #307
IG81 is offline IG81  Canada
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Quote:
Originally Posted by globalplayer View Post
What`s the deal with the Karlson enclosures? I saw a lot of projects on this site. Google brings up a lot of mixed reviews.
Most of Karlson's original claims were obviously bogus, but when you look at it from a BP6/8 angle (which most K's are), it's design becomes more obvious and something quite usable can be made for generally low-Qt drivers. The one thing that separates it from normal bandpass enclosures, mostly in how it's used, is that the front radiation of the driver is used above the enclosure gain bandwidth, into the midrange and sometimes fullrange. This is where it mostly can go wrong sonically.

Karlson fans used to have their own forum, as well as the old Fullrangedriver.com site, but most have moved here, in addition to renewed interest with XRK971's Akabak model and smaller format modern designs derived thereof.

I agree with the above recommendations to keep the 12-250TC in closed enclosures, it's Qt is a bit on the high side for vented of any sort IMO.

Last edited by IG81; 30th November 2017 at 02:40 PM.
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Old 30th November 2017, 03:17 PM   #308
globalplayer is offline globalplayer  Germany
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Thanks for the explanation.
I use BP6 for subs only.
From the design I figured the Karlson might be something like a "wide-band port" kind of "thing".
Yes. SQ will suffer substantially. I am aware of that.
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Old 30th November 2017, 04:16 PM   #309
BucketInABucket is offline BucketInABucket  United Kingdom
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Wrong thread...
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Old 26th December 2017, 09:16 AM   #310
bob4 is offline bob4  Germany
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thist hread has been awfully quiet recently.....

I saw someone asking in the ENabl thread if anyone has tried enabling 12-250tcs, and thought, why not ask here....
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