LSI9 weak tweeter response

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Braddles63
Braddles63 Posts: 184
in Troubleshooting
Just picked up a pair of LSI9's and one of the tweeters output is weak.

I swapped them over and its not the tweeter so i pulled out the Xover but i cant see anything obviously wrong. No burnt resistors or caps. it all looks pretty good.

Anyone got some advice please?

Cheers
Brad
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  • Braddles63
    Braddles63 Posts: 184
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    I have also checked the jumpers and they are connected correctly.
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  • codycatalist
    codycatalist Posts: 2,662
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    I would measure the tweeter with a multi meter and see if it is still good. My SL2000 had a dull or weak output sound because it was blown. Not sure of what the measurements would need to read but im sure Polk CS could tell you.
    Just a dude doing dude-ly things

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  • Braddles63
    Braddles63 Posts: 184
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    Thanks Codycatalist. Like I said I have swapped the tweeters between the speakers and nothing changes. So I'm assuming its not the tweeter itself. There is sound coming from the tweeter but its not extended like the other speaker. Its sounds muffled.
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  • F1nut
    F1nut Posts: 49,794
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    You've got a bad resistor. You can't always go by appearance.
    Political Correctness'.........defined

    "A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."

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  • skrol
    skrol Posts: 3,337
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    Good time tp do an xo upgrade
    Stan

    Main 2ch:
    Polk LSi15 (DB840 upgrade), Parasound: P/LD-1100, HCA-1000A; Denon: DVD-2910, DRM-800A; Benchmark DAC1, Monster HTS3600-MKII, Grado SR-225i; Technics SL-J2, Parasound PPH-100.

    HT:
    Marantz SR7010, Polk: RTA11TL (RDO198-1, XO and Damping Upgrades), S4, CS250, PSW110 , Marantz UD5005, Pioneer PL-530, Panasonic TC-P42S60

    Other stuff:
    Denon: DRA-835R, AVR-888, DCD-660, DRM-700A, DRR-780; Polk: S8, Monitor 5A, 5B, TSi100, RM7, PSW10 (DXi104 upgrade); Pioneer: CT-6R; Onkyo CP-1046F; Ortofon OM5E, Marantz: PM5004, CD5004, CDR-615; Parasound C/PT-600, HCA-800ii, Sony CDP-650ESD, Technics SA 5070, B&W DM601
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  • Braddles63
    Braddles63 Posts: 184
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    Thanks guys. I will get some new caps.
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