11 inch Ceramic sandwich mass adjustable passive radiator.
The Accuton P280 is a high end passive radiator designed to complement the S280 range of drive units and features the same ceramic sandwich cone and multi spoke chassis.
Adjustable mass tuning is accomplished by adding / removing stainless steel weight discs giving a possible resonance range of between 15Hz - 45 Hz.
The stated nominal resonance frequency of the passive radiator is taken at 3mm excursion to give a realistic value.
Here's a formula to calculate the resonant frequency :
Fres= sqrt[1/(Cms corr.) x Mms x 4 pi^2)] with Cms corr.= 1/[(1/Cms) + 1/((Vb/Vas) x Cms)] ... phew! :0)
- Ultra rigid ceramic sandwich cone (Corundum / Sapphire)
- 280mm multi spoke chassis with protective grille
- Mass adjustable for optimised tuning
- Long throw max. 13mm
|Resonant frequency (fs)
||DC resistance (Re)
|Mechanical Q factor (Qms)
|Electrical Q factor (Qes)
|Total Q factor (Qts)
|Equivalent volume (Vas)
Click icons to download data & dimensions :
Built to order - contact us for a lead time.