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.
 

Wavecor


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PR178WA01       order no. wc-pr178wa01       EUR 100,10 excl. VAT: € 84.12 / $ 91.69
16 cm passive radiator.
  • resonance frequency fs = 19,9-26 Hz
  • effective piston radiating area Sd = 131 cm2
  • effective mechanical mass incl. air load mms = 50 g
  • equivalent volume of compliance Vas = 17 l
  • total Q factor Qts = 0,43 (Qms=24, Qes=0,45)
  • mounting diameter d = 141 mm
  • overall diameter d = 178 mm
  • mounting depth (not countersunk) t = 59 mm
  • mass m = 0,25 kg

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PR182BD01       order no. wc-pr182bd01       - not available
17 cm passive radiator. The basket is made of die-cast.
  • resonance frequency fs = 8,2-10 Hz
  • effective piston radiating area Sd = 131 cm2
  • effective mechanical mass incl. air load mms = 72 g
  • equivalent volume of compliance Vas = 85 l
  • total Q factor Qts = 0,43 (Qms=9, Qes=0,45)
  • mounting diameter d = 153 mm
  • overall diameter d = 182 mm
  • mounting depth (not countersunk) t = 68 mm
  • mass m = 0,40 kg
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PR223BD01       order no. wc-pr223bd01       EUR 149,00 excl. VAT: € 125.21 / $ 136.48
21 cm passive radiator. The basket is made of die-cast.
  • resonance frequency fs = 13,9-20 Hz
  • effective piston radiating area Sd = 214 cm2
  • effective mechanical mass incl. air load mms = 165 g
  • equivalent volume of compliance Vas = 25 l
  • total Q factor Qts = 0,43 (Qms=14,5, Qes=0,45)
  • mounting diameter d = 192 mm
  • overall diameter d = 223,5 mm
  • mounting depth (not countersunk) t = 128 mm
  • mass m = 0,9 kg

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PR223BD02       order no. wc-pr223bd02-01       EUR 203,50 excl. VAT: € 171.01 / $ 186.40
21 cm passive radiator. The basket is made of die-cast.
  • resonance frequency fs = 8,5-15 Hz
  • effective piston radiating area Sd = 206 cm2
  • effective mechanical mass incl. air load mms = 162 g
  • equivalent volume of compliance Vas = 41,6 l
  • total Q factor Qts = 0,43 (Qms=19, Qes=0,45)
  • mounting diameter d = 192 mm
  • overall diameter d = 223,5 mm
  • mounting depth (not countersunk) t = 90 mm
  • mass m = 0,95 kg
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PR263WA01       order no. wc-pr263wa01       - not available
25 cm passive radiator. The basket is made of die-cast.
  • resonance frequency fs = 12-18,5 Hz
  • effective piston radiating area Sd = 314 cm2
  • effective mechanical mass incl. air load mms = 255 g
  • equivalent volume of compliance Vas = 40,5 l
  • total Q factor Qts = 0,43 (Qms=26, Qes=0,45)
  • mounting diameter d = 234 mm
  • overall diameter d = 263 mm
  • mounting depth (not countersunk) t = 101 mm
  • mass m = 1,2 kg
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PR270WA01       order no. wc-pr270wa01       EUR 159,50 excl. VAT: € 134.03 / $ 146.10
25 cm passive radiator.
  • resonance frequency fs = 16,3-26 Hz
  • effective piston radiating area Sd = 312 cm2
  • effective mechanical mass incl. air load mms = 112 g
  • equivalent volume of compliance Vas = 46 l
  • total Q factor Qts = 0,43 (Qms=24, Qes=0,45)
  • mounting diameter d = 228 mm
  • overall diameter d = 270 mm
  • mounting depth (not countersunk) t = 84,3 mm
  • mass m = 0,64 kg
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PR310WA01       order no. wc-pr310wa01       - not available
30 cm passive radiator. The basket is made of die-cast.
  • resonance frequency fs = 12,5-19 Hz
  • effective piston radiating area Sd = 513 cm2
  • effective mechanical mass incl. air load mms = 270 g
  • equivalent volume of compliance Vas = 97 l
  • total Q factor Qts = 0,43 (Qms=13, Qes=0,45)
  • mounting diameter d = 282 mm
  • overall diameter d = 312 mm
  • mounting depth (not countersunk) t = 110 mm

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Seas SP 22 R

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.
 
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. seas-H9946 seas-H9945 seas-H9944
price: EUR 167,00 excl. VAT: € 140.34 / $ 152.97 EUR 115,90 excl. VAT: € 97.39 / $ 106.16 EUR 108,00 excl. VAT: € 90.76 / $ 98.92

Accuton

P173       order no. T-p173       EUR 237,00 excl. VAT: € 199.16 / $ 217.08
.
  • mounting diameter d = 145,6 mm
  • overall diameter d = 173 mm

 

P220       order no. T-p220       EUR 276,00 excl. VAT: € 231.93 / $ 252.81
.
  • mounting diameter d = 190,5 mm
  • overall diameter d = 220 mm