Turntable help needed

bklynNupe
bklynNupe Posts: 728
edited September 2011 in 2 Channel Audio
I notice an almost violent flutter of the woofers on my Lsi9's when playing my turntable. I don't have the same experience if I using my Rtia9's. I'm using my sub with my Lsi9's. Could the crossover have something to do with this issue?:confused:

Thanks,
Brad

emotiva xpa-2
emotiva xpa-3
Denon 3312ci
Rtia9 /csia6 / FXi A6
Samsung LN46A650
SVS PB-12-NSD sub

Audio Research SP-9 MKIII (GNSC mods)
W4S ST250
Lsi 9 (mods)
W4S DAC-2
Mac Mini
Audio Aero Prima CD player
Pro-Ject debut
Post edited by bklynNupe on
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Comments

  • quadzilla
    quadzilla Posts: 1,543
    edited September 2011
    Or maybe the subs are causing feedback resonance with the table. Does this only happen if you turn up the volume? Or doesn't it also happen with the volume all the way down/muted?
    Turntable: Empire 208
    Arm: Rega 300
    Cart: Shelter 501 III
    Phono Pre: Aural Thrills
    Digital: Pioneer DV-79ai
    Pre: Conrad Johnson ET3 SE
    Amp: Conrad Johnson Evolution 2000
    Cables: Cardas Neutral Reference
    Speakers: SDA 2.3TL, heavily modified
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  • george daniel
    george daniel Posts: 12,096
    edited September 2011
    how close is your tt to the phono/pre?
    JC approves....he told me so. (F-1 nut)
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  • Face
    Face Posts: 14,340
    edited September 2011
    Do you have a rumble filter?
    "He who fights with monsters should look to it that he himself does not become a monster. And when you gaze long into an abyss the abyss also gazes into you." Friedrich Nietzsche
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  • bklynNupe
    bklynNupe Posts: 728
    edited September 2011
    It does happen when I turn up the volume, however we are still talking a really modest level. I'm pretty sure my table is far enough away from my pre and sub. No, I don't own a rumble filter. I did have one of those built into a Belari pre that I used to own and come to think of it, I didn't have this problem then. Any suggestions for a rumble filter if this is in fact the cause?

    emotiva xpa-2
    emotiva xpa-3
    Denon 3312ci
    Rtia9 /csia6 / FXi A6
    Samsung LN46A650
    SVS PB-12-NSD sub

    Audio Research SP-9 MKIII (GNSC mods)
    W4S ST250
    Lsi 9 (mods)
    W4S DAC-2
    Mac Mini
    Audio Aero Prima CD player
    Pro-Ject debut
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  • Toolfan66
    Toolfan66 Posts: 17,243
    edited September 2011
    I have a set of Nakamichi Rumble fillters if you intrested!!
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  • inspiredsports
    inspiredsports Posts: 5,501
    edited September 2011
    You may have a cartridge/tonearm mismatch.

    This can create a resonant frequency where the cantilever of your stylus becomes excited and vibrates out of control.

    The effective mass of a tonearm in combination with the rated compliance of the cartridge cantilever determines where the resonant frequency of a given tonearm/cartridge match up will be. In general terms, arms with high effective mass fitted with cartridges of high compliance result in resonant frequencies that fall below the ideal range.

    At the opposite end, arms with low effective mass mated to cartridges of low compliance result in resonant frequencies above the desired range. Both extremes are to be avoided.

    What tonearm/cartridge combo are you running?
    VTL ST50 w/mods / RCA6L6GC / TlfnknECC801S
    Conrad Johnson PV-5 w/mods
    TT Conrad Johnson Sonographe SG3 Oak / Sumiko LMT / Grado Woodbody Platinum / Sumiko PIB2 / The Clamp
    Musical Fidelity A1 CDPro/ Bada DD-22 Tube CDP / Conrad Johnson SD-22 CDP
    Tuners w/mods Kenwood KT5020 / Fisher KM60
    MF x-DAC V8, HAInfo NG27
    Herbies Ti-9 / Vibrapods / MIT Shotgun AC1 IEC's / MIT Shotgun 2 IC's / MIT Shotgun 2 Speaker Cables
    PS Audio Cryo / PowerPort Premium Outlets / Exact Power EP15A Conditioner
    Walnut SDA 2B TL /Oak SDA SRS II TL (Sonicaps/Mills/Cardas/Custom SDA ICs / Dynamat Extreme / Larry's Rings/ FSB-2 Spikes
    NAD SS rigs w/mods
    GIK panels
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  • Fongolio
    Fongolio Posts: 3,516
    edited September 2011
    TOOLFORLIFEFAN wrote: »
    I have a set of Nakamichi Rumble fillters if you intrested!!

    I use a pair of Nakamichi's with my vintage Eico ST-70 integrated and they work very well. Highly recommended for a cost effective solution to TT rumble.
    SDA-1C (full mods)
    Carver TFM-55
    NAD 1130 Pre-amp
    Rega Planar 3 TT/Shelter 501 MkII
    The Clamp
    Revox A77 Mk IV Dolby reel to reel
    Thorens TD160/Mission 774 arm/Stanton 881S Shibata
    Nakamichi CR7 Cassette Deck
    Rotel RCD-855 with modified tube output stage
    Cambridge Audio DACmagic Plus
    ADC Soundshaper 3 EQ
    Ben's IC's
    Nitty Gritty 1.5FI RCM
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