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mono block amp


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thapimpfromchi 
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Joined: July 30, 2003
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Posted: July 01, 2006 at 8:51 PM / IP Logged  
Hey fellas. it's been a long time. anyways, i recently came across a good deal on an amp (Hifonics Brutus 1500D), that i couldnt pass up. So, i go ahead and wire it up, to some infinity subs, svc 4ohm, wire'd down to 2 ohms parallel. Doesnt sound right.  for some reason I have to reverse the polarity on one of them for the subs to work properly? This is the first time i've ever owned a mono block amp, is this how its supposed to be? I already blew the infinity that was reversed. I got a polk in there now, that one too will probably be blown. someone help please. thanks.
1990 Honda Civic HB:
Clarion DXZ545MP H.U.
2- 6.5" Power Acoustik interiors
Diamond Audio 600.1 amp
Diamond Audio 15" M6MKII
Pyramid PB881X 4 CH. Amp
DYohn 
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Joined: April 22, 2003
Location: Arizona, United States
Posted: July 02, 2006 at 2:25 PM / IP Logged  
There is no difference wiring a mono amp than using a stereo amp bridged.  If you had to reverse one of the speakers, it must have been connected in reverse polarity to begin with.  If you are blowing speakers then either the amp gain is too high or the amp simply produces too much power for the speakers.
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thapimpfromchi 
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Joined: July 30, 2003
Location: United States
Posted: July 02, 2006 at 8:38 PM / IP Logged  

I think it might be a combination of both, I dont know what voltage this hu puts out, and the amp puts out 1000w x1@ 2ohm, the subs are rated at 300w rms, 1220 peak. but that 1000 is at 14.4 right? not sure how to calculate it at 12v.

what kills me is 300/1220... dont most subs go double rms as peak? thats why i figured an estimated 400-500 wouldnt be killer since the peak is 1220?

1990 Honda Civic HB:
Clarion DXZ545MP H.U.
2- 6.5" Power Acoustik interiors
Diamond Audio 600.1 amp
Diamond Audio 15" M6MKII
Pyramid PB881X 4 CH. Amp
aznboi3644 
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Joined: May 01, 2006
Location: United States
Posted: July 03, 2006 at 1:35 AM / IP Logged  
Peak is double RMS...But companies just make up a big number to get you to buy the products. If you have 2 subs each 300 rms than you'll be fine with that amp...600 RMS on a 1000 watt capable amp is ok...Just know how to set your gains.

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