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Thread: T/S Parameters for Pioneer TS-W303F

  1. #1
    Maximum Bitrate Raas's Avatar
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    T/S Parameters for Pioneer TS-W303F

    Hi,

    I just got hold of 2 Pioneer TS-W303F 12' subs..
    Now searching the web for the T/S parameters. But can't find next to nothing.
    They are free-air subs, but I want them enclosed in a box

    Anyone know where I can get hold of these parameters ?

    TIA
    Greetz,
    Raas
    Raas - The Netherlands
    ME: VIA epia m10000, lilliput 7', opus 150w, 80gb<br>
    GF: IBM Thinkpad 380, ext. 3.5 80gb, 40x4, PB-IR

  2. #2
    Maximum Bitrate Raas's Avatar
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    ok.. got them... now what....?

    Okay..
    So I didn't search very well because they where on the web somewhere...

    Here it goes...

    Qms = -0,698
    Qes = 0,323
    Qts = 0,60
    FS = 35 Hz
    Vas = 94
    RMS = 160w
    Peak = 500w
    Db/1w/1m = 93 Db
    Resistance = 4ohm

    I've plotted these figures in WinISD-Beta and it calculates to get me a 350 Liter sub-box. The -3DB dropoff then occurs at 20Hz (pretty deep, and 23Hz and up it remains pretty flat)

    When I want a box of say 60 liters the -3Db roloff hapens between 70 and 80 Hz which is way to high...
    (and this is strange, 'cause I found something on the web, which said that, if these subs where installed in a sealed 45 liter box, they sounded really good.. now.. If I calculate this in WinISD, the 3Db rolloff hapens at 100+ HZ)

    Could due to the nature off these subs, because they're designed to be "Free-Air" -subs.. But isn't there some way to use this in vented box ??
    I have 2 off these and maximum volume I want to give to both off these is say 120 liters.. (need some space in the thrunk...)

    I cannot mount these subs "free-air" 'cause my car is a sedan, and there simply isn't enough space to put these in.

    Am I doing something wrong here or what ?
    Maybe someone else can put the T/S params in some other program and proove me wrong

    Thanks in Advance
    Greetz,
    Raas - The Netherlands
    ME: VIA epia m10000, lilliput 7', opus 150w, 80gb<br>
    GF: IBM Thinkpad 380, ext. 3.5 80gb, 40x4, PB-IR

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