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<blockquote data-quote="Jroo" data-source="post: 7705302" data-attributes="member: 574112">So the new dd 6.5 subs really have me interested. It took me awhile, but I believe i have the correct specs for these suckers. I would like to do 4 of them in a box. I orginally thought a T line until I saw the specs.Piston Diameter = 107.4 mm* f(s)= 51.14 Hz* R(e)= 8.15 Ohms* Z(max)= 69.48 Ohms* Q(ms)= 8.094* Q(es)= 1.075* Q(ts)= 0.949* V(as)= 1.762 liters (0.062 cubic feet)* L(e)= 1.33 mH* n(0)= 0.02 %* SPL= 75.30 1W/1m* M(ms)= 63.46 grams* C(ms)= 0.15 mm/N* BL= 12.43Somewhere I remember hearing never do a T line with drivers that had really high Qts. Looking at the specs, would a 4th order or a 6th order work? Is it also me, but the Fs seem kinda high and I thought that affected their ability to go low?</blockquote>

[QUOTE="Jroo, post: 7705302, member: 574112"] So the new dd 6.5 subs really have me interested. It took me awhile, but I believe i have the correct specs for these suckers. I would like to do 4 of them in a box. I orginally thought a T line until I saw the specs. Piston Diameter = 107.4 mm * f(s)= 51.14 Hz * R(e)= 8.15 Ohms * Z(max)= 69.48 Ohms * Q(ms)= 8.094 * Q(es)= 1.075 * Q(ts)= 0.949 * V(as)= 1.762 liters (0.062 cubic feet) * L(e)= 1.33 mH * n(0)= 0.02 % * SPL= 75.30 1W/1m * M(ms)= 63.46 grams * C(ms)= 0.15 mm/N * BL= 12.43 Somewhere I remember hearing never do a T line with drivers that had really high Qts. Looking at the specs, would a 4th order or a 6th order work? Is it also me, but the Fs seem kinda high and I thought that affected their ability to go low? [/QUOTE]

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