The Dynaco Tube Audio Forum

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The Dynaco Tube Audio Forum

Dedicated to the restoration and preservation of all original Dynaco tube audio equipment - Customer support for Tubes4hifi VTA tube amp and preamp kits and all Dynakitparts.com products


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vtshopdog
Kentley
bubbasweet
7 posters

    Sibulance Causes

    bubbasweet
    bubbasweet


    Posts : 95
    Join date : 2016-03-14

    Sibulance Causes Empty Sibulance Causes

    Post by bubbasweet Wed Apr 06, 2016 2:12 pm

    I am wondering can the Capacitor on the A25s cause sibulance. I notice that the Ss on some records are suddenly very harsh. I guess I need to troubleshoot because I recently swapped out too many things at one time, my speakers and my Preamp. I still have the old one. I just wondered if the caps are original if they can cause this problem if dried out. To add to the problem I think it could also be my turntable because I have never swapped the cartridge or needle out since I have owned it. The system sound fine when on TV that is why I wonder about the turntable. It has a Shure M75MG.
    Kentley
    Kentley


    Posts : 496
    Join date : 2015-03-06
    Age : 72
    Location : Worcester, MA

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    Post by Kentley Wed Apr 06, 2016 2:20 pm

    The first thing you should do is replace your stylus (needle). It's probably the cause, and you will do irreversible damage to your vinyl should you continue to use a worn or damaged needle.
    bubbasweet
    bubbasweet


    Posts : 95
    Join date : 2016-03-14

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    Post by bubbasweet Wed Apr 06, 2016 2:28 pm

    Thanx for that. Was my 1st stop. A phono store owner suggested I change the cartridge also with an audiotechnica. Mine is a Shure M75MG or close to that. My question is do the cartridges wear out or is it most likely just the needle? THX
    Kentley
    Kentley


    Posts : 496
    Join date : 2015-03-06
    Age : 72
    Location : Worcester, MA

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    Post by Kentley Wed Apr 06, 2016 4:08 pm

    Cartridges are not likely to degenerate - they either work or not. Sounds to me as if your retailer just wants to make a sale.
    vtshopdog
    vtshopdog


    Posts : 155
    Join date : 2015-07-11
    Location : UT, USA

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    Post by vtshopdog Wed Apr 06, 2016 4:54 pm

    JICO is great source for replacement stylus.  By far best deal if you order direct from Japan on their website but takes 3-4 weeks for delivery.  (might take you that long to find your model fit as their website is not search friendly ...)

    Both my Shure V15-III's play really well with the Jico SAS - it has  narrow tip that rides deeper in groove and many of my old LPs sound better.  (second time I play them that is, as first round seems to entail the narrow stylus digging up decades of crud in groove and sounds like mud)

    Vinyl Engine is great forum for all things TT.
    bubbasweet
    bubbasweet


    Posts : 95
    Join date : 2016-03-14

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    Post by bubbasweet Wed Apr 06, 2016 8:57 pm

    Not sure why I didn't think of this before. I have the same album I was listening to with the Sibilance I was hearing on CD and I have a portable cd player.. So I put the CD on and the S distortion was gone. So Definatly the turntable and likely just the needle/stylus. THX ALL.
    ArlanB
    ArlanB


    Posts : 73
    Join date : 2011-01-23
    Age : 77
    Location : Santa Cruz, California

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    Post by ArlanB Thu Apr 07, 2016 12:19 am

    A quick note regarding the JICO SAS stylus,  as of a few weeks ago JICO has halted the manufacture of all SAS styli.  A statement on the web site indicates that the sourcing of materials for the SAS has become either to costly or not available therefore all SAS stylus manufacture has stopped.  They go on to say that they are searching for materials to make a second generation stylus to take the place of the SAS.  If you are looking to purchase a SAS now, good luck.  Web sites like LP Gear, Turntable needles and others immediately jacked the price up on the stock they had on hand.  When I read the notice on the JICO web site I went to LP Gear and bought a second stylus for my M97xE.  The following day the price went up from $178.98 to over $250.00.  Turntable Needles jacked theirs up to over $300.00.
    corndog71
    corndog71


    Posts : 840
    Join date : 2013-03-19
    Location : It can get windy here

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    Post by corndog71 Thu Apr 07, 2016 10:44 am

    I replaced my 15 year old Shure V15VxMR with the current M97xE and it sounds great!

    http://amzn.com/B007ZC2EYQ
    deepee99
    deepee99


    Posts : 2244
    Join date : 2012-05-23
    Location : Wallace, Idaho

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    Post by deepee99 Wed Apr 13, 2016 8:32 pm

    Bubbasweet,
    Thought just occurred: have you checked your tracking weight? Too light a weight (<1.5-2.0 grams) will produce sibilance, and will chew the grooves up something fierce. It should be checked with a proper gauge; don't rely on the numbers on that wheel on the tone-arm.
    Roy Mottram
    Roy Mottram
    Admin


    Posts : 1838
    Join date : 2008-11-30

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    Post by Roy Mottram Wed Apr 13, 2016 10:15 pm

    bubbasweet,
    could also be the alignment of your cartridge - vertical & horizontal - most good phono shops sell guages for that.
    needledoctor.com is a good source for all things turntable related

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