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Which OHM subs ??? BR or TRS
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dymondaudio View Drop Down
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Points: 1464 		Post Options Post Options   Thanks (0) Thanks(0)   Quote dymondaudio Quote  Post ReplyReply Direct Link To This Post Posted: 20 December 2012 at 4:51pm
Somebody broke your TRS.
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Pasi View Drop Down
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Points: 2732 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Pasi Quote  Post ReplyReply Direct Link To This Post Posted: 20 December 2012 at 4:57pm
What settings you had on your LMS when running TRS?

Obviously there's been damaged boxes or user error. TRS-218 doesn't rattle even with 2.5KW input. Last time i tried was yesterday ;)
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darkraver View Drop Down
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Well they are not mine !

Remember we swapped the original speakers some time ago as the original once kept on breaking down. (too hard driven) Originals were hard to get and rather expensive.

Of course you can break anything due to abuse for sure but since the 18Sound speakers are in no more defect speakers have been reported Smile, they have a way better power handling.
The rattling and vibrating is still there.

Just put your hands on the back and the sides of the TRS218 and you will notice the cabinet vibrates quite heavily with or without the original speakers in.
These are my findings.
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Did you buy them from new?  Have they ever been dropped?
music is the message
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dylan-penguinmedia View Drop Down
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Originally posted by darkraver darkraver wrote:

Originals were hard to get 

If you phone an OHM dealer, or OHM themselves, getting replacements or recones ordered, couldn't be easier.

All of the OHM range have very comprehensive bracing inside the cabinets, and the woodwork is excellent. Sounds like something's not quite right....


Edited by dylan-penguinmedia - 20 December 2012 at 6:03pm
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Heard one of the hung off a CFU A-2 on a single channel so probs around 1100 watts and wasn't very impressed? how much of a difference does feeding it 2.5kw make then Pasi?
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Originally posted by basshead2012 basshead2012 wrote:

Heard one of the hung off a CFU A-2 on a single channel so probs around 1100 watts and wasn't very impressed? how much of a difference does feeding it 2.5kw make then Pasi?


Bear in mind that Pasi's 2.5kw testing is done somewhat with a slightly more comfortable position on recones than pretty much anybody else!

I've been telling our local TRS supplier to give his the full welly of a K10 and see what happens for a while but he doesn't seem to have the balls
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dylan-penguinmedia View Drop Down
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Originally posted by basshead2012 basshead2012 wrote:

Heard one of the hung off a CFU A-2 on a single channel so probs around 1100 watts and wasn't very impressed? how much of a difference does feeding it 2.5kw make then Pasi?


I'd say you want an A3 to make them sing. We use A2's for a BR15 low mid, as an example.
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Pasi View Drop Down
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Originally posted by toastyghost toastyghost wrote:

Originally posted by basshead2012 basshead2012 wrote:

Heard one of the hung off a CFU A-2 on a single channel so probs around 1100 watts and wasn't very impressed? how much of a difference does feeding it 2.5kw make then Pasi?


Bear in mind that Pasi's 2.5kw testing is done somewhat with a slightly more comfortable position on recones than pretty much anybody else!

I've been telling our local TRS supplier to give his the full welly of a K10 and see what happens for a while but he doesn't seem to have the balls


Basshead, big difference. You should try for example with powersoft K10 or similiar which is beefy enough. HPF at 40 and give them some welly ;)

Toasty: Well, depends on how many boxes you have in one amp. 2 per channel won't cause issues. I'll have word with him ;) And you stop playing his amps with so low impedances :D
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mk2_ginger_biscuit69 View Drop Down
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Originally posted by darkraver darkraver wrote:


Remember we swapped the original speakers some time ago as the original once kept on breaking down. (too hard driven) Originals were hard to get and rather expensive.


Fail1 - abusing kit with excessive input level, if the cabs cant deliver whats needed at sensible level, the application needs more kit [HEADROOM!]

Originally posted by darkraver darkraver wrote:


Of course you can break anything due to abuse for sure but since the 18Sound speakers are in no more defect speakers have been reported Smile, they have a way better power handling.
The rattling and vibrating is still there.


Fail2 - replacing drivers with non originals. Driver TS parameters must be matched to the cabinets, power handling means didily squat if the sensitivity and response is all over the shop. You may find drivers which match, and also give a gain in sensitivity/excursion/handling, but you may find a different driver will have a terrible response all over the shop. Likewise, the driver could be hitting xmax or other mechanical limits through being badly twinned to the cabinet.


All the TRS218's ive heard and used have been great Clap
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darkraver View Drop Down
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Did you buy them from new?  Have they ever been dropped?

Yes, they used to be new and no they have never been dropped :)
To drop all 12 at once is rather difficult.

And no I would not put any "real" 2,5kw in any TRS218 for sure.
Except for power compression and damaged speakers it will not make much sense.
Or will the TRS218 play twice as loud while putting in 2,5KW ? do not think so LOL.
Risking damaging your cones for that, perhaps, 1db extra, is it worth it ?

Remind an XTI6000 already tears apart the rather simple stock woofers inside the 800 and 1000W versions of the TRS218. The 18NLW9600 sure is an improvement, basically just because you do not damage these woofers that easily.You can beat these drivers hard without any problems !

Once we ran a test sweep over the TRS218 (800W version) and below 50hz they lost quite some SPL and you could hear "click click click", so the woofer was on the edge of breaking down again.
We had expected it could handle much more..
It is not a sub that plays low and loud !

Same test sweep with the NLW9600 and no "click click click" and they kept going even when increasing input power :) !!




 
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toastyghost View Drop Down
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Points: 10919 		Post Options Post Options   Thanks (0) Thanks(0)   Quote toastyghost Quote  Post ReplyReply Direct Link To This Post Posted: 20 December 2012 at 11:33pm
Originally posted by Pasi Pasi wrote:

Toasty: Well, depends on how many boxes you have in one amp. 2 per channel won't cause issues. I'll have word with him ;) And you stop playing his amps with so low impedances :D


Haha, I wouldn't abuse somebody else's kit, even if it does read 2r all night long! He's almost convinced to try it himself, so we shall see in the new year
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