Passive Radiators

Passive radiators should be used like bass reflex tubes. The resonance of the passive radiator instead of the bass reflex tube is being used.

Seas Passive Radiators

Seas passive radiators are very versatile. For tuning purpose weights may be screwed to the back of the drivers. The passive membrane area should ideally be the same size as the one of the active driver or up to 50% bigger under heavy loads. This is because the moved air by the passive radiator is - depending on the frequency - up to 50% higher than the one by the active driver.
 
Seas SP 22 R
Type: SP25 R SP21 R SP17 R
total
diameter:		 261 mm 215 mm 170 mm
cut-out
diameter:		 269 mm 220.6 mm 176 mm
Loch-
durchmesser:		 256 mm 209.5 mm 166 mm
driver free air resonance : 22 Hz 22 Hz 26 Hz
maximum peak linear excursion: 25 mm 20 mm 19 mm
effective mechanical mass incl. air load: 42 g 28 g 21.5 g
effective piston radiating area: 350 cm2 230 cm2 130 cm2
mechanical compliance: 1.25 mm/N 1.87 mm/N 1.74 mm/N
order no. I-1381051 I-1381050 I-1381049
price: - not available EUR 97,00 EUR 72,00

still for a short time available


 
Seas SP 25 R
Type: SP25 R SP21 R SP17 R
total
diameter:		 261 mm 215 mm 170 mm
cut-out
diameter:		 230 mm 187 mm 146 mm
Loch-
durchmesser:		 230 mm 187 mm 146 mm
driver free air resonance : 22 Hz 22 Hz 26 Hz
maximum peak linear excursion: 25 mm 20 mm 19 mm
effective mechanical mass incl. air load: 42 g 28 g 21,5 g
effective piston radiating area: 350 cm2 230 cm2 130 cm2
mechanical compliance: 1,25 mm/N 1,87 mm/N 1,74 mm/N
order no. I-6305 I-6304 I-6302
price: - not available - not available - not available

BassExciter BXP 10

An addition to the active BX10. This driver is tuned quite low and requires a bass reflex tube that would be unrealistically long. Therefore, the passive radiator BXP10 was developed, easily doubling the maximum peak linear excursion of the BX10. The BXP10's MDF cone is extremely rigid and is easy to tune by adding or removing weights at the back.
Passivmembran BX250

 

  • total diameter: 255 mm
  • cut-out diameter: 223 mm
  • fitting depth: 74 mm
  • countersunk depth: 7 mm
  • cone weight: 180 g
  • resonance frequency in 17 litre cabinet: 46 Hz
  • cone diameter: 169 mm
  • surround width: 35 mm
  • effective piston radiating area: 365 cm2
  • fitting holes: 8x5 mm on 245 mm circle

    • Price   EUR 59,00


     
    technical data of Peerless passive radiators
    Type: XLS-10
    Slave 265g    		 XLS-10
    Slave 400g    		 XLS-12
    Slave 290g    		 XLS-12
    Slave 425g
    total
    diameter    		 269 mm 269 mm 308 mm 308 mm
    cut-out
    diameter    		 240 mm 240 mm 278 mm 278 mm
    effective piston radiating area 333 cm2 333 cm2 466 cm2 466 cm2
    effective mechanical mass incl. air load 265g 400g 290g 425g
    equivalent volume of compliance 80L 80L 170L 170L
    mechanical compliance 0,51 mm/N 0,51 mm/N 0,55 mm/N 0,55 mm/N
    maximum peak linear excursion 22 mm 22 mm 24 mm 24 mm

    Accuton

    		P173       order no. T-p173       EUR 75,00
    .
    • mounting diameter d = 145,6 mm
    • overall diameter d = 173 mm

     

    		P220       order no. T-p220       EUR 97,00
    .
    • mounting diameter d = 190,5 mm
    • overall diameter d = 220 mm

     

    We stock passive radiators by BassExciter, Seas and Visaton! We would be pleased to recommend a specific model for your application!

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