What to do?

bigaudiofanatic

So my neighbor and I have been wathing start wars episode 1 and was going very smothly until we get to the pod racing scene. That scene basicly was making the LSi 25 subs POP and distort a bit. He has the lsi 25's a onkyo 3 room reciver 2 direct tv recivers a blu ray player and a sony lcd 47 inch tv all pluged in to the wall via power strip. Also has in the same room and on the same braker the celing fan and the lights as well. So what can we do to get them to stop POPING at that scene is it just to little power getting to them or is it the gains need to be set a little lower. Everything else including music movies and shows sounds great but it is that scene. So what to do? On a side not the gains on them are set at there "normal setting"

McLoki

I am guessing that you really need a subsonic filter.... It is just trying to reproduce bass that is to deep for the LSi25 to deal with. best suggestion would be to get a subwoofer and crossover the LSi25's at 60hz or so.....

bigaudiofanatic

Well he rely dose not want to get another sub in the room there rely is not room for it. So he will probably will just have to set the cut off and not have that rely low bass.

bigaudiofanatic

What frequency's are in that scene?

bigaudiofanatic

I found out the lowest is 14 hz

bigaudiofanatic

The speakers were even poping during the movie stealth today. The knobs on the rear of the speakers were set at 80hz what else should we try?

McLoki

The knobs on the speakers are where they cut over to the powered 10" speaker.

one thing you could try (just to see if this is the issue) is set your speaker to small with a 40hz crossover in your avr.

bigaudiofanatic

It still is doing it on things like tokyo drift and even polar express the Frequency is set to factory and the volume is set for a little more than half. Also in setup the bass is at the lowest it is at -15 db and if you go to THX there is less bass than if it is dolby but dose not sound as good.

messiah

His receiver probably cant handle the 4 ohm load.

nguyendot

messiah wrote: »

His receiver probably cant handle the 4 ohm load.

But would that effect the powered bass portion of the speakers?

If they were unpowered I'd point to this but I believe the LSi25s are powered subwoofer sections, right?

bigaudiofanatic

Correct they are powered

heiney9

Well in my experience once you "pop" a speaker a few times it becomes weak or damaged and it will "pop" more often and at lower levels. The damage may already be done.

H9

P.s. what speakers are popping? Woofers or mids?

treitz3

Push all of the mid range drivers and the bass drivers in a couple of times with the rig powered down [being careful not to touch the dust caps]. Do they all bounce back with smooth precision or can you feel some sort of an obstruction?

nguyendot

treitz3 wrote: »

Push all of the mid range drivers and the bass drivers in a couple of times with the rig powered down [being careful not to touch the dust caps]. Do they all bounce back with smooth precision or can you feel some sort of an obstruction?

See if any of the drivers (with cones) scratch. If you feel scratching while pushing it directly in, that can mean the voice coil is blown. The scratching is the coil scraping.

mr2sw21

I have connect my system to my pc and whenever it start window before the "starting" music kicks in there a "Plug" sound happen to all my speakers. What is that? It happens every time when I start window.

Please educate me what is the "Poping" you guys talking about for the speakers which you all mention that will damage the speakers? What does that sound like is that what happening to me?

nguyendot

The "Plug" sound is just your computer initializing the sound card more than likely. Usually this is the fault of a poorly designed sound card that does not have a soft-on to prevent sending noise through on power up and power down.

I would wait until the computer is on an fully operational prior to powering on the speakers/amp to prevent this.

rayslifecycle

nguyendot wrote: »

The "Plug" sound is just your computer initializing the sound card more than likely. Usually this is the fault of a poorly designed sound card that does not have a soft-on to prevent sending noise through on power up and power down.

I would wait until the computer is on an fully operational prior to powering on the speakers/amp to prevent this.

Agreed - after the computer starts up, turn on your amp - mine does this as well.........

mr2sw21

thanks guys, So that "plug" sound is different than the pop sound you all mention in the previous reply? So then what is a speaker pop sound like? And what is clipping too? How does that sound like?

bigaudiofanatic

I still need to find out why it is doing this going to check the woofers now.

bigaudiofanatic

Just checked them they go in and out very smoothly no resistance at all.

messiah

More likely a problem with the receiver than the speakers

danger boy

bigaudiofanatic wrote: »

So my neighbor and I have been wathing start wars episode 1 and was going very smothly until we get to the pod racing scene. That scene basicly was making the LSi 25 subs POP and distort a bit. He has the lsi 25's a onkyo 3 room reciver 2 direct tv recivers a blu ray player and a sony lcd 47 inch tv all pluged in to the wall via power strip. Also has in the same room and on the same braker the celing fan and the lights as well. So what can we do to get them to stop POPING at that scene is it just to little power getting to them or is it the gains need to be set a little lower. Everything else including music movies and shows sounds great but it is that scene. So what to do? On a side not the gains on them are set at there "normal setting"

simple solution.. quit watching the pod racer scene.. problem solved.
thanks everyone, I'll be here all night.

nguyendot

Well the pop and distortion is constant during the scene, and during operation.

The pop from your computer is only on startup and not during operation, right?

dorokusai

LSi25 aren't going to hit 14hz. The volume is too high, the woofers are bottoming out and simply being overdriven....back off the volume.

bigaudiofanatic

But I mean it is even doing ti while watching the polar express and Tokyo Drift. So should I cut back the volume on the towers or cut the frequency on the towers.

mr2sw21

nguyendot wrote: »

Well the pop and distortion is constant during the scene, and during operation.

The pop from your computer is only on startup and not during operation, right?

yes it just start up only.

But I am just wondering the pop you all mention about during the movie, is it the same pop that when I start the window?

mr2sw21

bigaudiofanatic wrote: »

But I mean it is even doing ti while watching the polar express and Tokyo Drift. So should I cut back the volume on the towers or cut the frequency on the towers.

Can the Lsi be defective?

treitz3

bigaudiofanatic wrote: »

But I mean it is even doing ti while watching the polar express and Tokyo Drift. So should I cut back the volume on the towers or cut the frequency on the towers.

Both. If it has happened too many times already, you may have compromised the drivers. Keep it up and you may compromise the amp as well.

Your goal? Never to hear that sound again.

Face

You're only going to get so much out of a 10" side firing woofer in a small enclosure and a 150 watt plate amp.

nguyendot

mr2sw21 wrote: »

yes it just start up only.

But I am just wondering the pop you all mention about during the movie, is it the same pop that when I start the window?

No.

One is distortion, one is just a startup signal coming from your pc. Totally different.

rayslifecycle

mr2sw21 wrote: »

So then what is a speaker pop sound like? And what is clipping too? How does that sound like?

When your questions are answered, and you are listening to your system, you will be unhappy.