Wavecor PR178WA01 7″ alu cone passive radiator

Wavecor PR178WA01 7″ alu cone passive radiator Overview:PR178WA01 is a passive unit designed for dedicated subwoofer applications – as a partner to our active subwoofer units. Due to low mechanical losses PR178WA01 masters equally well low level details and extreme dynamic requirements. For demanding subwoofer applications using a passive unit is usually the only real alternative to sealed enclosures with active bass boost.To make experimenting and individual tuning convenient and easy, the PR178WA01 is delivered with three separate extra loads that are easily applied onto a threaded rod on the rear side of the cone (see picture below) Features:Extremely rigid aluminium cone for precise transient responseVery low mechanical lossesRear M6 threaded rod for trouble-free and rigid addition of extra massDelivered with three separate mass loads for easy custom tuning Nominal Specifications:Nominal size7[inch.]Effective radiating area, Sd131[sq.cm]Resonance freq., Fs, without additional mass – with additional 5g mass – with additional 10g mass – with additional 15g mass – with additional 20 g mass – with additional 25g mass – with additional 30g mass – with additional 35g mass26 24.8 23.7 22.8 22.0 21.2 20.6 19.9[Hz] [Hz] [Hz] [Hz] [Hz] [Hz] [Hz] [Hz]Moving mass, incl. air, without extra weight (may be be increased in 5g steps from 5g to 35g)50[g]Suspension compliance, Cms0.70[mm/N]Equiv. air volume, Vas17[lit.]Mechanical Q, Qm, without additional mass24–Total unit net weight (incl. 3 extra weights)0.25[kg]PR178WA01 DataSheet