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<blockquote data-quote="sam_b03" data-source="post: 7146141" data-attributes="member: 607518">Thanks. I built a box that is a .75 cu ft for it but that is in my other car (broke down) I really like the way it sounded. I was running MB Quart discus 2150 bridged for 600rms.&nbsp; reviews I read on the IDQ&#039;s said they were way under rated at 350rms. Since my 370z only has front door speaker (infinity kappa 63.9&#039;s) and stock tweeters in the dash. I am thinking about simplifing the wiring and running an Avionix axa440.4 amp. The fronts are 2ohm getting 110rms and the sub would be bridged to get 220 at 4ohms. Is is safe to run different ohm loads on the same amp?Avionix amps are rated @ 12.5v (atleast that is what is advertised on the T curcuit amps). They don&#039;t give that figure on the A/B amps. All the reviews I have read on them say they are underrated and good strong amp.&nbsp; I do know my car charges close to 15v on start up and will drop down to 14.4ish at it has been running awhile. If/when it gets my Kappas, I am going to replace them with CDT or image Dymanics components.</blockquote>

[QUOTE="sam_b03, post: 7146141, member: 607518"] Thanks. I built a box that is a .75 cu ft for it but that is in my other car (broke down) I really like the way it sounded. I was running MB Quart discus 2150 bridged for 600rms. reviews I read on the IDQ's said they were way under rated at 350rms. Since my 370z only has front door speaker (infinity kappa 63.9's) and stock tweeters in the dash. I am thinking about simplifing the wiring and running an Avionix axa440.4 amp. The fronts are 2ohm getting 110rms and the sub would be bridged to get 220 at 4ohms. Is is safe to run different ohm loads on the same amp? Avionix amps are rated @ 12.5v (atleast that is what is advertised on the T curcuit amps). They don't give that figure on the A/B amps. All the reviews I have read on them say they are underrated and good strong amp. I do know my car charges close to 15v on start up and will drop down to 14.4ish at it has been running awhile. If/when it gets my Kappas, I am going to replace them with CDT or image Dymanics components. [/QUOTE]

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