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Reload Thread: Qes in parallel vs series on a DVC sub

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    Qes in parallel vs series on a DVC sub

    Does anyone know if/how the Qes of the subwoofer if the voice coils are ran in parallel or series? I know that a change in Qes will give a different change in sealed airspace requirements.



    DEX-P9 (headunit)
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    Re: Qes in parallel vs series on a DVC sub

    Originally posted by dreamer
    Does anyone know if/how the Qes of the subwoofer if the voice coils are ran in parallel or series? I know that a change in Qes will give a different change in sealed airspace requirements.
    Are you asking how the Qes changes? I don't quite understand the question...




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    dreamer is offline Senior VIP Member

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    Any time there is a change in inductance, there is usually a change in Qes. In a DVC system, typically they measure Qes when the coils are in parallel. When the resistance of a system of voice coils on one woofer change, the inductance could change. If the inductance changes, the Qes changes. All this is just theory in my head now, and I wanted to know if anyone could confirm or deny this.



    DEX-P9 (headunit)
    DEQ-P9 (30band eq L/R, time alignment, 36dB/oct 4 way crossover)
    Soundstream Tarantula (for subs)
    Precision Power PCX-4125 (for horns and midbasses)
    Image Dynamics CD2 comp mini horns
    Scan-Speak 7" 18W/5535A midbasses
    Subs still pending.

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