LSI C Problems..please help

vr4god

I have melted 2 crossovers so far in this speaker, and I must say I really didnt have the volume up very high or at least it wasn't high enough to melt a crossover or so I thought. Why is this happening and should I consider a different speaker for my center? Very frustrating. :mad:

pjdami

Wow very nice system you have there. Doesn't look like you've got the center underpowered or anything. Sorry to hear that you are having so much trouble.

Since you posted here Kenneth Swauger from Polk Customer Service will be responding to your problem soon. Polk has outstanding customer service.

You can click on his moderator name and send him a private message as well.

As long as you were wired correctly and weren't pushing it too hard you shouldn't be having these types of problems.

Frank Z

WOW! 2 of them?!? I'm amazed to say the least. I would gues that the sound from the speaker would have started distorted long before the crossover actually smoked. Have you talked to Polk Customer service about this problem? I'm sure ken and rest of the CS crew would be very interested in your crossover failures. How about letting us know how you have your system wired up. Looking at your signiture it's obvious that you've got enough knowledge to pick out good equipment, but maybe the problem is in the wiring. Never hurts to double check or get a second opinion.

Are you're speakers biwired? Has the jumper been removed? Does the amp have a switch to select the speaker impedance? Have you checked the other speakers in your system for evidence of damage to the crossovers? Any lightning strikes lately? Pissed off any witch-doctors?;)

vr4god

I have talked to POLK before, they suggested maybe going to a loudspeaker such as Klipsche or Cerwin Vega and then replaced the crossover. The jumpers are not removed and I am running a 12 gauge wire directly from the Amp to the speaker, no biwiring. Straight forward stuff. I want to add that I also melted a crossover in the LSI25 once before too. Polk had me put a fast blow fuse inline on the positive speaker cable. I have had 1 fuse blow in the last 3 months. Well last night the center smoked and the fuse is OK but upon inspection of the center speaker the crossover is melted AGAIN. I am really frustrated and really am considering buying a different center.

vr4god

The crossover part number I have is RE3610-1. There are little white block looking items soldered to the board that melt.

pjdami

vr4god,

Is this happening during watching movie DVDs or music listening?

Just how loud are we talking here? Reference levels? Maybe if explained a little more about what is going on and when. Have you measured your listening levels with a sound level meter?

F1nut

Define "the volume up very high or at least it wasn't high enough to melt a crossover..." Was the volume at halfway or greater? Are the fronts set to large or small?

The little white blocks are ceramic resistors which can melt, even catch fire if fed to much juice. You may be having some sort of problem with the output section of your amp.

vr4god

I listen to some music fairly loud. Loud enough to really feel it. The setting is at large speakers for the mains, small on rear and center. I recently thought maybe I had an amp problem so I sent the amp into Sunfire who looked it over and sent it back last Tuesday. They said it checked out good.

I have a run of appx 30 feet of 12 gauge speaker cable from the amp to the center. Do you think I should rewire to a heavier more effecient speaker cable? Maybe like the Z1 from Monster cable.
Actually, I just looked at the center speaker cable and it is 16 gauge.

The volume levels are NEVER turned higher than 1/3. I would say 1/4 is as loud as it goes for music.