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Old 11th January 2008, 08:18 AM   #1
diyAudio Member
Join Date: Dec 2007
Default Hi-fi Sub parameters


based on the manufacturer data I have been unable to design an enclosure with valid parameters, using winISD.

the manufacturer data is as follows:

-Thiele Small Parameters (measured with voice coils in parallel)
Power Handling: 300WRMS
Impedance: 4 ohms (dual voice coil)
Voice Coil Resistance: 1.7ohm
Vas: 79.450 Ltr
Qms: 3.238
Qes: 0.446
Qts: 0.392
Sensitivity: 88.152 dB/Wm
BL: 9.992 TM
Fo: 28.77 Hz
Sd: 514.72 sqCM
Weight: 8.5kg

Can anyone suggest an enclosure size? I have heard that a sealed enclosure in the realms of 58Litres is suitable but I would have prefered a vented design.

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Old 11th January 2008, 11:47 AM   #2
diyAudio Member
Join Date: Mar 2004
Location: Budapest, Hungary
Vb = 56.2 l
Port diameter = 8 cm
Port length = 27.5 cm
- 3 dB = 28.9 Hz
- 6 dB = 25 Hz
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