Celestion K12H-200TC and Eminence 12LTA - diyAudio
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Old 5th February 2014, 07:23 PM   #1
Legis is offline Legis  Finland
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Default Celestion K12H-200TC and Eminence 12LTA

Anyone tested these 12" Celestion full rangers yet? They are quite new.

Coaxial/Twin Cone - K12H-200TC - Celestion - Guitar, Bass & Pro Audio Speakers

I recently acquired them and have been doing some basic modding and giving them some playing hours. They are starting to sing very nicely current driven. They replaced modded Eminence 12LTAs. At this point of burn-in I can only say for sure that 1) K12H-200TCs gives more dynamic and punchier bass than 12LTA, 2) they handle higher SPLs better than 12LTA.

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Manufacturer's (voltage driven) freq response plot:

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Let the burn in continue...

Regards,

Legis
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Old 16th June 2014, 12:48 PM   #2
Legis is offline Legis  Finland
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Some follow up...

Click the image to open in full size.

It took about 3 month of daily listening, and little bit of mechanical massaging for the cones to get completely relaxed. All in all, this Celestion driver is very good in my opinion, better than my 12LTA's. Typical lively and big' old sound of the large FR with very well behaving cone(s).

Last edited by Legis; 16th June 2014 at 12:51 PM.
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Old 16th June 2014, 02:46 PM   #3
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I'd like to try those. I checked Parts Express but they don't sell them. I love the 12lta and if this is better I'd love to have a set.
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Old 16th June 2014, 03:02 PM   #4
noggers is offline noggers  United States
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MCM Electronics looks like they sell it, backordered 32 days though: Celestion 12" Woofer Twin Cone 200W RMS | K12H-200TC (K12H200TC) | Celestion
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Old 16th June 2014, 03:10 PM   #5
sippy is offline sippy  United Kingdom
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Quote:
Originally Posted by Godzilla View Post
I'd like to try those. I checked Parts Express but they don't sell them. I love the 12lta and if this is better I'd love to have a set.
+1
Thanks for the heads-up Legis
Just done a search and found them for 60
I know I've got a 'period of silence' coming up that might last a few months (people upstairs are moving) so I'm gonna learn the Enable Tap Test on my Lta's.....
I hope.......
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Old 17th June 2014, 01:18 AM   #6
freddi is offline freddi  United States
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12lta finally played well for me - it took Greg B's Karlsonator 12 to help its weak motor couple to the air - if the Celestion is truly better and not just different then I'll pick up one for comparison.


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Old 17th June 2014, 02:49 PM   #7
Legis is offline Legis  Finland
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Couple of side notes that I may add. Both the Celestion and the 12lta are modded almost the same way (which includes basket rear wave reflection absorption, basket damping with bitumen, removal of the dust cap, supporting the whizzer with foam sticks and some minor magnet structure diffraction reduction and vibration absorption). I have also "massaged" the cone's outer rim and the whizzer and softened/loosened the surrounds somewhat. I have not used cone treatment for either of the drivers, I like the paper cone's tonality as-is (except in the Cele the cone is not 100% paper, but paper-kevlar mix).

In this particular modding theme/setup, both the cones fully runned in (very important), the Celestion's cone behaves better, it screams less and is more natural because of that. 12lta has some ringing notes in the cone's break-up region, that are most apparent if the speaker is toed-in straight towards the listener. Otherwise the articulation and sense of speed and timing is quite identical between the drivers, as is the way they both draw the soundstage (big rather than than pin-point accurate). The build quality is also better in Cele, if that matters.

If the cones are compared 100% unmodded, the Celestion is even more better than 12lta, it is really good and balanced even as stock but gets better with some basic mods. Cele's big and wobbly dust cap is best to be removed in my opinion.

If some cone treatment/damping is added, the situation might change either way.

edit. Also by the way, DO NOT add anything (window sealant tape etc.) between the driver and the baffle. Lossy connection between the driver and the baffle messes up the the tightness and the tonality of the bass and muddies the micro-articulation. I learned that the hard way. Celestion comes completely without any sealant and is best to be coupled straight to the baffle without anything in between (as non-lossy/lossless as possible).

Last edited by Legis; 17th June 2014 at 03:12 PM.
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Old 18th June 2014, 05:03 PM   #8
IG81 is offline IG81  Canada
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I wonder how the Fane drivers would compare. The Sovereign line appears to have two models, the 12-200LT and 12-250TC. Comparable price range and specs as 12LTA and the Celestion. The 12-250TC looks like the better of the two on paper IMO.
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Old 21st June 2014, 01:42 PM   #9
Legis is offline Legis  Finland
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I don't have any experience of those Fane drivers. 12-250TC's response looks like quite much of filtering. There might be some ugly resonances. Impedance plot might not be too accurate since it's so smooth.
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Old 24th June 2014, 08:27 PM   #10
Elias is offline Elias  Finland
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Hi Legis,

You had earlier massive dipole linearrays... What happened to them

Where do you put the cross over frequency ? That looks like Visaton tweeter.
How does it sound without a tweeter ?


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