Thiele small parameters
07-25-2005, 01:02 PM
#1
50 Watt CAFz'r
Thread Starter
Join Date: Jun 2005
Posts: 56
I was wondering, the "Thiele-Small" parameters of my sub are:
Vb = 2.539cf
Fb = 21.42hz
F3 = 25.85hz
Are these caculations what I should be sticking to interms of best performance for my sub spl wise or sq or both?
I ask this because I made a box with a Vb = 4.114cf tuned to 42.5hz and though it wasn't tested on a terlab it really doesn't sound lounder then my old vented box!
I just want to know if I made a mistake make this large box and tuning it so high?
David
Vb = 2.539cf
Fb = 21.42hz
F3 = 25.85hz
Are these caculations what I should be sticking to interms of best performance for my sub spl wise or sq or both?
I ask this because I made a box with a Vb = 4.114cf tuned to 42.5hz and though it wasn't tested on a terlab it really doesn't sound lounder then my old vented box!
I just want to know if I made a mistake make this large box and tuning it so high?
David
07-25-2005, 06:55 PM
#3
50 Watt CAFz'r
Thread Starter
Join Date: Jun 2005
Posts: 56
Fs: 36.40hz
Qms: 3.41
Cms: 0.063mm
Mms: 301.50g
Rms: 20.20kg/s
Vas: 0.903cf(25.57L)
Xmax: 1.010in (25.65mm)
D:10.283in (261.19mm)
Sd: 83.05in squared (535.79cm squared)
Vd: 83.89in cubed (1.37L)
Qes: 0.67
Re: 1.89ohms
Bl: 13.98Tm
Prms: 1000Watts
Qts: 0.558
no: 0.178%
SPLo: 84.71db
SPL2.83v/1m: 91db
Its a "12 sub, that is all the specs I have on it plus the t/s parameters last post.
Qms: 3.41
Cms: 0.063mm
Mms: 301.50g
Rms: 20.20kg/s
Vas: 0.903cf(25.57L)
Xmax: 1.010in (25.65mm)
D:10.283in (261.19mm)
Sd: 83.05in squared (535.79cm squared)
Vd: 83.89in cubed (1.37L)
Qes: 0.67
Re: 1.89ohms
Bl: 13.98Tm
Prms: 1000Watts
Qts: 0.558
no: 0.178%
SPLo: 84.71db
SPL2.83v/1m: 91db
Its a "12 sub, that is all the specs I have on it plus the t/s parameters last post.
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