Greg83

Greg83

Audiophyte
I have two subs. One sub was clipping even though they were on similar settings. I replaced it and now the new one easily clips. The other sub is still good. They are Martin Logan 1100x’s. Is one just not getting enough power from the wall? Help!
 
TLS Guy

TLS Guy

Seriously, I have no life.
I have two subs. One sub was clipping even though they were on similar settings. I replaced it and now the new one easily clips. The other sub is still good. They are Martin Logan 1100x’s. Is one just not getting enough power from the wall? Help!
I assume you are not hearing it clip, but the clip indicator lights up. Is that correct? The next question is can you be certain both subs are receiving the same signal?

If the answer to the latter is correct, then it is probably the one that does not light the clip indicator that is faulty. In other words the clip indicator on that sub is not working correctly.

Sealed subs clip easily. I'm known here for trying to discourage sealed subs. The reason is that the driver has no acoustic transformer and only the driver cone couples to the air. So you end up with very poor native low frequency response. So you then have to bring up the low end with huge amounts of bass boost which consumes a lot of amp power and stresses the driver. So it is very common to clip sealed subs unless they cost a King's ransom. It requires enormous amp power and driver systems to handle that power and a driver suspension with huge excursion. That is what eats away the money and limits performance if you don't pay the ransom.
 
Greg83

Greg83

Audiophyte
No, I can hear it clipping when it gets loud. Only the one. It is a sealed sub, but they cost around 1k each which is a lot to me.
 
ryanosaur

ryanosaur

Audioholic Overlord
No, I can hear it clipping when it gets loud. Only the one. It is a sealed sub, but they cost around 1k each which is a lot to me.
Please elaborate on what you hear? Is it an audible clicking sound?
 
ryanosaur

ryanosaur

Audioholic Overlord
It’s like a bottoming out muffle sound not clicking. If that makes since...
It does, and that is not what clipping is. If it is bottoming out, or exceeding its Xmech spec and the pole is striking the back plate of the motor assembly, that means it is being driven too hard. If you have not already damaged the driver, you are close to it.
 
Greg83

Greg83

Audiophyte
If that’s the case let me recommend against buying the ml 1100x for surround sound. Even if your wife thinks they look nicer. Looks like I’ll just have to turn it down a bit. Thanks man!
 
lovinthehd

lovinthehd

Audioholic Jedi
The controls on subs may not be so precise as expected for equal setup. Are the subs equidistant from your seat? Did you gain match or level match?
 
TLS Guy

TLS Guy

Seriously, I have no life.
No, I can hear it clipping when it gets loud. Only the one. It is a sealed sub, but they cost around 1k each which is a lot to me.
That's not a king's ransom!
If that’s the case let me recommend against buying the ml 1100x for surround sound. Even if your wife thinks they look nicer. Looks like I’ll just have to turn it down a bit. Thanks man!
Yes, that is your only solution. The driver is bottoming. You have had a leaning experience.
 

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