Upgrade thinking / preamps tube style

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  • RuSsMaN
    RuSsMaN Posts: 17,987
    edited December 2004
    Nothing like that little 'gun' that shoots RF or Infra-red at your preamp, eh? That motor, with all the windings, probably a real good antenna for rf/emi, and RIGHT on your front end to.

    I'm an orb, a sphere of audio goodness.
    Check your lips at the door woman. Shake your hips like battleships. Yeah, all the white girls trip when I sing at Sunday service.
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  • F1nut
    F1nut Posts: 50,662
    edited December 2004
    And folks call me a purist....LOL
    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."

    President of Club Polk

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  • madmax
    madmax Posts: 12,434
    edited December 2004
    Originally posted by hotwheelman
    I'm curious how you get noise from a servo motor on the volume pot, and how in the hell is it in the signal path? I thought the pot for volume just shared the same shaft as the motor but were both seperate to each other electric wise. My old pioneer ht reciever never made any kind of noise and it was servo driven pot........enlighten me.

    I did not hear any kind of any noise out of marks anthem when I used the mo at the gathereing either.

    This comes from a purist point of view. If you have active electronics around the signal you can get noise. Not necessarily noise from using it but overall dynamic noise. For example, in an infrared receiver you have a clock and a small processor. This little "computer system" runs continuously. It has oportunity to couple onto the volume potentiometers via the little wire antennas going to the coil in the motor right next to your pot. (Not the kind these guys are smoking.) If this noise is getting in the way of the sound you will never know until you remove it. Some of us prefer to "know" by insuring it cannot cause problems by not having it there. Make sense?

    madmax
    Vinyl, the final frontier...

    Avantgarde horns, 300b tubes, thats the kinda crap I want... :D
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  • faster100
    faster100 Posts: 6,124
    edited December 2004
    So you guys have any thoughts on vintage tube pre's ?
    MY HT RIG:
    Sherwood p-965
    Sherwood sd871 dvd
    Rotel 1075 amp x5
    LSI15 mains
    LsiC center
    LSIfx surround backs
    Lsi7 side surrounds
    SVS pb12/plus2

    2 Channel Rig:

    nad 1020 Pre-amp
    Rotel 1080 stereo amp
    Polk sda 2B
    kenwood grunt Tuner
    realistic lab 450 TT
    Signal cable IC
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