eggi
New Member
Posts: 15
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21"
Jan 9, 2006 3:58:26 GMT -7
Post by eggi on Jan 9, 2006 3:58:26 GMT -7
fo: 18.25 Hz Vd: 2010 cm3 Qes: 0.28 Qms: 3.77 Qts: 0.26 VAS: 526.5 lit. B/L: 31.1 N/A Res: 173.2 ohm Rms: 12.9 kg / s Cms: 0.13 mm/N Mms: 309.7 g Re: 5.6 ohm Rp: 67 ohm Lp: 113.9 mH Cp: 471 uF Le: 2.4 mH SPL: 98,8 dB
I know Qts is to low, but I read somewhere that Q can be raised by adding mass to the cone ?
WinISD will not accept these parameters as they are, but Im not sure what of them is wrong.
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21"
Jan 9, 2006 8:13:27 GMT -7
Post by ThomasW on Jan 9, 2006 8:13:27 GMT -7
what's the Xamx and does this have an accordion surround?
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eggi
New Member
Posts: 15
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21"
Jan 9, 2006 8:40:50 GMT -7
Post by eggi on Jan 9, 2006 8:40:50 GMT -7
not sure what the Xmax is, but since the Vd is "only" 2010 cm3 im guessing its in between 10-15, depending on how big Sd. It has accordian surround. It can move as much air as a "good" 15" thats why I considered it.
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21"
Jan 9, 2006 9:41:43 GMT -7
Post by ThomasW on Jan 9, 2006 9:41:43 GMT -7
As per the FAQ page accordion surrounds get noisy when pushed hard.
If you look in the gallery you'll see Paul W's original IB with a pair of 24" Hartleys. He thought those would be perfect for an IB. He quickly found out that even with the huge Sd he was slamming the VC's into the backplates...
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