LSIC #2 driver no sound

johnnym

Ive just recently purchased a set of LSI15 / FX's / and a LSIC, and am setting them up. Ive noticed that the #2 driver in the lsic doesnt seem to be working, no sound that I can make out, certainly nothing close to the #1 driver. Am I missing something or possibly bad driver? thanks in advance

Frank Z

The Lsi speakers use a cascading crossover, so both drivers do not sound the same. You might want to pull the drivers out and check the connections just to be on the safe side though.

[Deleted User]

Hello,
Frank is correct, the two drivers don't reproduce the same frequency spectrum nor play at the same level. This is part of the speaker's design and works to eliminate a "comb" filter effect of having two drivers on the same horizontal plane.
Regards, Ken

johnnym

Thanks guys, I understand now. The sound is great.

ezc

Thats a common complaint with the LSiC. I had the same complaint & my center sounded like it had a hole ( missing somthing) I replaced the center with a LSi9 to try & Liked that much more. So next I replaced the LSiC Xover with a LSi9 Xover. the center now is fuller & matches the 15's well. With the C Xover the low driver is quiet most of the time. With the 9 X over the low driver is still cascading but the low driver comes in slightly sooner. Got the idea to try after reading the LSi9 being reviewed in I think it was sound & Vision. They used 5 lsi9 for thier review & said with the 9 in the center worked well. So I figured try a 9, I liked what it sounded like but not the look, so take the 9 Xover & put it in the C. The C & 9 uses the same drivers & tweet, the box is the main difference besides the X over. I have a few friends that have done the same X over change & all claim they like it better! One friend is still using his 9 as his center.

Demiurge

Ugh...okay, I just moved over the last 5 days and I finally pulled the LSiC out of storage and hooked it up in conjunction with my LSi15s. I was using an CSi40 for my center.

Now, when I bought the LSiC from P.HUNT I hooked it up and thought something was broken as well.

I read these threads and now understand what's going on, however, when I watch movies the sound is incredibly muffled and I have to crank the sound up (compared to listening to music on the exact same CDP) to even hear what's going on in a movie. I can listen to music at -40 dB, but the movies need to be at -15 dB in order to be heard (and that still sounds like crap).

Now, my system isn't completely set up at the moment. I have my LSi15s & LSiC wired to my B & K and then the pre-outs hooked up to my AVR. I have yet to hook up my surrounds.

Am I doing something wrong? I'm using my XBox 360 for music and movies right now, which I know isn't ideal, but still -- it shouldn't sound the way it does during movies. I did only try watching 300 on HDDVD. I haven't tried something else yet.

All speakers are set to small and I even boosted the dBs on the center by +10 (which was lacking the most).

Side note, the jumpers were missing on the LSiC. Does this really matter? If so, can I get them from Polk? They were never shipped when I bought it from the Flea Market here at Club Polk.

edbert

Demiurge wrote: »

Side note, the jumpers were missing on the LSiC. Does this really matter? If so, can I get them from Polk? They were never shipped when I bought it from the Flea Market here at Club Polk.

This is your answer right here I would guess. Instead of the jumper, any quality speaker wire to connect them together will work better than the jumper and you can find out if it fixes the problem immediately.

Demiurge

I actually did that when I first got them and it solved nothing.

My LSi15s also sound terrible during movies. When I say sound terrible, I mean that there is very little sound coming from them without cranking the AVR. When I listen to my music they sound excellent.

phuz

edbert wrote: »

This is your answer right here I would guess. Instead of the jumper, any quality speaker wire to connect them together will work better than the jumper and you can find out if it fixes the problem immediately.

Yep, you gotta have something connecting the terminals... unless you have a bi-wire cable.

Also, use an SPL meter to set the levels. If you try to do it by ear it will never sound right. The front and center both pull front/center duty in 5.1+ systems and have to blend properly.

Lastly, what most people don't really know is that the center is supposed to sound different than everything else. It's mostly for dialog in movies and should focus voices in the center near the screen. It's not really supposed to be full or project beyond the screen.

Next time you go to a theater, pay attention as to how the dialog sticks to the screen and sounds different compared to everything else in the theater/film.

phuz

Demiurge wrote: »

I actually did that when I first got them and it solved nothing.

My LSi15s also sound terrible during movies. When I say sound terrible, I mean that there is very little sound coming from them without cranking the AVR. When I listen to my music they sound excellent.

In multi channel DSP modes you won't get the same volume as you will in 2 channel or pure 5 channel stereo modes.

DPLII, DD, DTS, etc. all use special processing to provide theater like sound. It shouldn't sound "terrible" - but the volume will need to be cranked up a bit more in surround modes.

What kind of AVR/amp?

Demiurge

phuz wrote: »

In multi channel DSP modes you won't get the same volume as you will in 2 channel or pure 5 channel stereo modes.

DPLII, DD, DTS, etc. all use special processing to provide theater like sound. It shouldn't sound "terrible" - but the volume will need to be cranked up a bit more in surround modes.

What kind of AVR/amp?

B & K Components AV-5125 Amplifier
Pioneer Elite VSX52TX AVR

I'll get the replacement jumpers from Polk.

I guess I am just not used to having such a huge difference between music and watching a movie when it comes to volume, then again, I never had my LSi speakers hooked up until recently. In the past I was using my RTi line.

phuz

Demiurge wrote: »

B & K Components AV-5125 Amplifier
Pioneer Elite VSX52TX AVR

I'll get the replacement jumpers from Polk.

I guess I am just not used to having such a huge difference between music and watching a movie when it comes to volume, then again, I never had my LSi speakers hooked up until recently. In the past I was using my RTi line.

Speaker wire will be fine to use as jumpers.

There is a lot of signal processing going on and movies are usually much more dynamic. There is almost always a fairly noticeable difference in volume when switching between music and movies on AVRs.

Demiurge

I believe you, but I just hadn't seen this great of a difference in my old speakers.

I'll give it a shot again tonight.

jdhdiggs

Dumb question, but have you setup the speakers using avia or similar programs? Sounds like something goofy is going on in the processing.