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"clipping" svt4pro in mono bridge

randallmartinez

randallmartinez

Aug 26, 2009
24
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youtube.com/randallmartinez85
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#1
Ok, so here is the deal. ampeg svt810e. Rated 800wrms. ampeg svt4pro monobridged 1200wrms. Obviously not a match. But supposedly they are supposed to be able to run together mono bridged. I ran it monobridged one time, and when the gain got to noon it pop's insainly loud. I hit this forum looking for answers, people said it was the speakers bottoming out. The owner of a music store told me he just got off the phone with the head tech support guy "scott" at ampeg. He says that an ampeg 810e is more than capable of taking that head bridged with room to spare, supposedly quoted as saying "three times rms". And that the popping is comming from the head, as a clip. Regardless of the fact that it has a limiter on it. I just want to know can you guys run your 4pro's monobridged past noon on the master without problems? I want to test the theory myself and try it on a cab that is rated at least 1200wrms, but thats hard to find here. I'm calling b/s on this whole story and just need to be proved it is the head.
 
#3
The 810E is thermally limited to 800 watts above 100 Hz. Below that displacement takes over and reduces power handling down to 400 watts at 60 Hz and lower. Running a 1200w amp into it without being judicious about it will either toast the coils or crease the cones; that pop you're hearing could be voice coils hitting backplates, and that's what leads to creased cones and shattered coils. Back it off. 'Tech support guy Scott' isn't going to replace your drivers.
 
#5
I usually run my SVT 4 with the "peak" light flicking now and then (when I slap hard, for example, the light will flash). My master is usually at around 1:00, sometimes 2:00. I've never had a problem with the sounds you're describing (I'm running mono bridged into an Eden 410 XLT 8 ohm cab).
 
#6
I have a svt 4 pro and i am running a 610 hlf ampeg cab and only run in mono bridge mode and get no clipping running @ 2 oclock master and gain bass @ 12 mid at 2 treb at 12 and eq at flat with a little higher mids luv my svt 4 pro:hyper:
 
#8
TheNightLife said:
iduno i had a similar problem. i had a 4 pro and an 810e and no matter what i did i got that same pop at a certain point. needless to say i got tired of it so i got rid of the 4pro and got the svtcl and couldnt be happier
Click to expand...

I traded my cl for a 4pro. I love the it, and i'm leaning more towards it being the cab than the head. because the cab don't say on it that it can handle 1200rms. 1600peak dont mean squat to me.
 
#10
randallmartinez said:
Ok, so here is the deal. ampeg svt810e. Rated 800wrms. ampeg svt4pro monobridged 1200wrms. Obviously not a match. But supposedly they are supposed to be able to run together mono bridged. I ran it monobridged one time, and when the gain got to noon it pop's insainly loud. I hit this forum looking for answers, people said it was the speakers bottoming out. The owner of a music store told me he just got off the phone with the head tech support guy "scott" at ampeg. He says that an ampeg 810e is more than capable of taking that head bridged with room to spare, supposedly quoted as saying "three times rms". And that the popping is comming from the head, as a clip. Regardless of the fact that it has a limiter on it. I just want to know can you guys run your 4pro's monobridged past noon on the master without problems? I want to test the theory myself and try it on a cab that is rated at least 1200wrms, but thats hard to find here. I'm calling b/s on this whole story and just need to be proved it is the head.
Click to expand...

I'm with your BS theory....... it's the speakers, its the speakers, and "Scott" needs to go try it.

You should have heard the popping when we tested the first 8PRO........ it was much worse, and I can guarantee you that amp was not clipping at the time.

Clipping makes a buzz...... this ain't a buzz, I know EXACTLY what you are referring to, and the 4PRO WILL do it to a standard 810 if pushed. It is a sharp "bang", like a .22 pistol going off.

Yes, it IS hitting the backplates. Those speakers have flat backplates, look at the photos in the 810E thread of Jimmy's.

The HLF speakers with the DISHED backplates don't do that.
 
#11
Jerrold Tiers said:
I'm with your BS theory....... it's the speakers, its the speakers, and "Scott" needs to go try it.

You should have heard the popping when we tested the first 8PRO........ it was much worse, and I can guarantee you that amp was not clipping at the time.

Clipping makes a buzz...... this ain't a buzz, I know EXACTLY what you are referring to, and the 4PRO WILL do it to a standard 810 if pushed. It is a sharp "bang", like a .22 pistol going off.

Yes, it IS hitting the backplates. Those speakers have flat backplates, look at the photos in the 810E thread of Jimmy's.

The HLF speakers with the DISHED backplates don't do that.
Click to expand...

Exactly, that was what i was thinking, but i just needed to hear it. That bang does sound like that. The 4pro has a limiter on it, so it tries its best to make sure that the speakers are getting clean signal. So when my guitar player said "i did some research and ampeg says that its clipping, ampeg says as loud as that amp goes is about 1 or 2 on the master and 9 or 10 on the gain, thats just as loud as that amp goes" and i said, "it shouldn't be clipping, its got a limiter". He just said "well its not a brick wall limiter, so it can't hold back everything." I felt like it was all b/s, hence why i hit the forum. I have been in this band for 3 years, and i know my guitar player, he is all about image. It has to be name brand or it don't matter, it doesn't matter how good we play. Its all if we got "all tube, ampeg orange and marshalls". I know for sure that when he said "i talked to the head tech guy at ampeg for 2 hours, and he said's not sure what it is, but he knows its not the cab." was a pathedic and desprite attempted to keep me from leaving the image he worked so hard to obtain... what a effin tool....
But anyways, thanks guys for your help, and i have a custom cab on the way that doesn't run 1200wrms, but it should be tuned to match my needs, insain low end and midrange that could butter your bread... Fingers crossed. After he makes it he is going to side by side it with an 810e, but he said numbers wise it kills it. I told him it has to be a undisputeable difference so that i don't hear "man i don't know what it is, but that ampeg cab was just (insert b/s adjective i.e. punchier, cleaner, fuller...)" Don't mean to go off on a rant, but i effin hate image...hey guys, lets put a bunch of cabs on stage and not even plug them in or have them loaded so we can look cool, as opposed to having massive and crushing stage volume that will make the front row wet themselves.... i hate posers..
Anyways, thanks again.
 

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