All systems operational. Multiple currency checkout available soon !

All systems operational. Multiple currency checkout available soon !



Accuton P280 Passive Bass Radiator

11 inch Ceramic sandwich mass adjustable passive radiator.

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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)

Key Features:

  • Ultra rigid ceramic sandwich cone (Corundum / Sapphire)
  • 280mm multi spoke chassis with protective grille
  • Mass adjustable for optimised tuning
  • Long throw max. 13mm

Basic Parameters:

    Resonant frequency (fs) 18Hz DC resistance (Re) -
    Mechanical  Q factor (Qms) - Power handling -
    Electrical Q factor (Qes) - Sensitivity (2.83V/1m) -
    Total Q factor (Qts) - Chassis diameter 280mm
    Equivalent volume (Vas) 226L Cutout diameter 252mm

    Click icons to download data & dimensions :

    .pdf icon              .pdf icon                                                                      

    Built to order - contact us for a lead time.