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 just replaced my memphis ampPrinted From: the12volt.comForum Name:  Car Audio
 Forum Discription:  Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
 URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=113538
 Printed Date: October 31, 2025 at 12:29 AM
 
 
 Topic: just replaced my memphis amp
 
 Posted By: johngutillo
 Subject: just replaced my memphis amp
 Date Posted: May 01, 2009 at 5:17 PM
 
 
 i posted a few weeks ago about my problem ,.,, i fried my memphis pr600 it was a 2 channel class AB amp,, i replaced it with a hifonics brutis bxi 1606d,,, i have 2 infinity kappa perfect vq subs dual voice coil 4 ohm coils,, at first i wired it to play at 4 ohms ,,, sounded like crap hardly any power at all,,, then i wired it at 1 ohm the thing hits alot harder then my memphis amp did, but it doesnt sound as clean,,, if i had a external crossover will it sound any cleaner???? please help by the way the brutis amp is a super class D mono amp its doing 1600x1 rms ,,, is it possible the thiers just so much more bass thats why it doesnt sound as clean?? i noticed the low bass doesnt sound as good as the memphis amp did,,,,, please help 
 
 Replies:
 
 Posted By: vibrationcustum
 Date Posted: May 10, 2009 at 11:00 AM
 
 the reason for that is because the THD is a lot lower but the bass output is For this reason D blocks run cooler and dont need fans to cool then. if you want it clean stay with an AB amp but if you want true bass the go with the D block.
 
 
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 Can't be loud then don't have it.
 
 (power acoustik system)
 Head unit- TID-896 7" TOUCHSCREEN
 ovn1-5500d 09 and another one coming soon
 4-12" mofos 12ft3 box to 40hz (wall)
 2 batterys, 1 power
 
 
 
 Posted By: i am an idiot
 Date Posted: May 10, 2009 at 11:25 AM
 
 Wow 
 
 
 Posted By: DYohn
 Date Posted: May 10, 2009 at 3:23 PM
 
 vibrationcustum wrote:
 the reason for that is because the THD is a lot lower but the bass output is For this reason D blocks run cooler and dont need fans to cool then. if you want it clean stay with an AB amp but if you want true bass the go with the D block.
 
 
 
 Huh?  About the only thing in this message that makes any sense is that Class D amps run cooler than A/B.  The rest is nonsense. The likely reason your Memphis amp sounded better than Hifonics is simply that it is a much better quality amp.  Less distortion meaning cleaner power.  Plus loading the Hifonics at 1-ohms is asking it to do a lot and pushing it to its limits.  It's probably producing 15% distortion. -------------Support the12volt.com
 
 
 Posted By: tommy...
 Date Posted: May 12, 2009 at 11:08 PM
 
 ok...ok...you sucked me in...I hear this all the time...Could you explain a little bit more in depth?
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 M.E.C.P & First-Class
 Go slow and drink lots of water...Procrastinators' Unite...Tomorrow!
 
 
 
 Posted By: tommy...
 Date Posted: May 12, 2009 at 11:10 PM
 
 Somehow i missed the rest of Dyohn post...dis-regaurd...dang rookie status...Now i cant delete my post ------------- M.E.C.P & First-Class
 Go slow and drink lots of water...Procrastinators' Unite...Tomorrow!
 
 
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