CallMeTy Posted September 22, 2009 Author Report Share Posted September 22, 2009 The difference between the lvl 4 and lvl 4 XL is the quantity and type of spiders along with a completely different motor.getting the lvl 5 coil in the lvl 4 gives you a better 8 layer flatwound coil, and more options for a coil config -Drew and doesnt this mean it allows to run at crazy ohms like .5? or something different Quote 1999 Altima 5spd HU: Alpine CDA-9887 Frnts: CDT audio 6.5 Components Rears: Alpine Type R 6.5 Components Speaker Amp: DAT HR4125 Subs: 2 AQ HDC3 15's coming soon Sub Amps:(2)US MD2D Wiring: Stinger Link to comment Share on other sites More sharing options...
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