LSI-7 problem

Refefer
Refefer Posts: 1,280
edited May 2006 in Speakers
So, I have a pair of older lsi-7s (with the seems in the front), aforementioned in the forum. My problem right now is that my left front lsi-7 sounds absolutely horrible. I know the tweeter isn't the problem as that still sounds very nice, but the lower range sounds uncontrolled and it horribly grates. There is no physical evidence of anything wrong with the mid-woofer. Any thoughts on what it might be? The crossover perhaps? or the actual driver itself?

Help me out guys, what can I do to discover what it might be? A poor college student such as myself needs all the help he can find ; )

Would it help if I recorded via a microphone what it's doing? Wouldn't be amazing, but I think it could capture the idea.

Thanks in advance.
Lovin that music year after year.

Main 2 Channel System

Polk SDA-1B,
Promitheus Audio TVC SE,
Rotel RB-980BX,
OPPO DV-970HD,
Lite Audio DAC AH,
IXOS XHA305 Interconnects

Computer Rig

Polk SDA CRS+,
Creek Audio 5350 SE,
Morrow Audio MA1 Interconnect,
HRT Music Streamer II
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Comments

  • Zen Dragon
    Zen Dragon Posts: 501
    edited May 2006
    First off switch the speakers between the channels. Put the left on the right side and the right on the left. This will verify if the problem is with the speaker or your output device.
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  • michael_w
    michael_w Posts: 2,813
    edited May 2006
    Lightly push in the mid using four or five fingers around the base of the dustcap. Listen for a nasty scratching noise. If it's smooth and sound free you're in the clear (for that test anyways).
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  • Refefer
    Refefer Posts: 1,280
    edited May 2006
    Switched sources and channels and it still sounds bad..

    There is no grating from the voice coil when I push in the midrange.

    Is there any chance it could be a crossover problem?
    Lovin that music year after year.

    Main 2 Channel System

    Polk SDA-1B,
    Promitheus Audio TVC SE,
    Rotel RB-980BX,
    OPPO DV-970HD,
    Lite Audio DAC AH,
    IXOS XHA305 Interconnects

    Computer Rig

    Polk SDA CRS+,
    Creek Audio 5350 SE,
    Morrow Audio MA1 Interconnect,
    HRT Music Streamer II
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  • Ricardo
    Ricardo Posts: 10,636
    edited May 2006
    Maybe a loose internal conenction? Pull the driver out and make sure that everything is tightly conected.
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  • Refefer
    Refefer Posts: 1,280
    edited May 2006
    Opened up the cabinet, everything is nice and tight... any other thoughts?
    Lovin that music year after year.

    Main 2 Channel System

    Polk SDA-1B,
    Promitheus Audio TVC SE,
    Rotel RB-980BX,
    OPPO DV-970HD,
    Lite Audio DAC AH,
    IXOS XHA305 Interconnects

    Computer Rig

    Polk SDA CRS+,
    Creek Audio 5350 SE,
    Morrow Audio MA1 Interconnect,
    HRT Music Streamer II
    · Share on FacebookShare on Twitter
  • danger boy
    danger boy Posts: 15,722
    edited May 2006
    yes. it is possible it could be a crossover problem.. my friend fried the crossover in his Klipsch's a few months back.

    I'd call Ken at Polk Audio customer service.. and see what he says..
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