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bridging a 4chan, 1200w amp


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ice32 
Copper - Posts: 116
Copper spacespace
Joined: June 12, 2007
Location: Australia
Posted: June 12, 2007 at 7:45 PM / IP Logged  
Hey,
Im new here but the information your site provides is huge, so i thought i might ask a question on how i can bridge my amp, Any help would be greatly appreciated.
Ok, so i have a 1200w max, 4 channel amp, 4x300w, 2ohm stable and it has a bridgeable 4/3/2Channel mode,i also have a 1200w max 300rms 4ohms sub that i want to power with this amp.
i had the idea that i could bridge all 4 channels into one and it would provide the necessary power for my sub, is this correct? if not, does anyone have a suggestion to how i can power my sub off this amp? if it will work, can someone help me out and explain how i can bridge my amp?
Here's a Picture of the bridgeable Terminals, hopefully it helps.
bridging a 4chan, 1200w amp -- posted image.
(sorry about the img size)
If you need any other information to provide help, just ask plz
Thanks in advance.
aznboi3644 
Gold - Posts: 2,600
Gold spaceThis member consistently provides reliable informationspace
Joined: May 01, 2006
Location: United States
Posted: June 12, 2007 at 8:22 PM / IP Logged  
no you can't bridge all four channels to one
ice32 
Copper - Posts: 116
Copper spacespace
Joined: June 12, 2007
Location: Australia
Posted: June 12, 2007 at 8:29 PM / IP Logged  
ok, what can i bridge then?
i am an idiot 
Platinum - Posts: 13,670
Platinum spaceThis member consistently provides reliable informationspace
Joined: September 21, 2006
Location: Louisiana, United States
Posted: June 12, 2007 at 8:52 PM / IP Logged  
You can bridge channels 1 and 2 into a 4 ohm load and you can bridge channels 3 and 4 into another 4 ohm load. Your only option with this amp and 1 sub is to get a Dual voice coil 4 ohm woofer.
I know your amp says it is 2 ohm stable but that is the minimum load per channel. That translates to 4 ohm bridged.
ice32 
Copper - Posts: 116
Copper spacespace
Joined: June 12, 2007
Location: Australia
Posted: June 12, 2007 at 9:08 PM / IP Logged  
so if that was 4ohms bridged, wouldn't i be able to run 1 single coil 4ohm sub on the bridged channel? or am i misunderstanding?
jeffchilcott 
Platinum - Posts: 2,483
Platinum spacespace
Joined: April 11, 2002
Location: United States
Posted: June 12, 2007 at 9:37 PM / IP Logged  
Please learn that MAX #'s mean nothing.    Your amp is capable of 600 watts (give or take 15%)MAX anyways, by the picture of the fuses you only have 60 amps of draw
what sub/ subs are you trying to hook to this beast?
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ice32 
Copper - Posts: 116
Copper spacespace
Joined: June 12, 2007
Location: Australia
Posted: June 12, 2007 at 9:45 PM / IP Logged  
i'm trying to power a :BN BOSS AUDIO 1200W 12IN SUB WOOFER
MAX:1200w
RMS:300w
OHM:4
says its dual magnet, i'm not too sure what this means.
aznboi3644 
Gold - Posts: 2,600
Gold spaceThis member consistently provides reliable informationspace
Joined: May 01, 2006
Location: United States
Posted: June 13, 2007 at 1:11 AM / IP Logged  
you can either bridge the first two channels to that sub or the rear channels...not all four
That sub is a cheap flea market sub so I'm sure bridging the fronts or rears will be plenty to push that sub
ice32 
Copper - Posts: 116
Copper spacespace
Joined: June 12, 2007
Location: Australia
Posted: June 13, 2007 at 4:07 AM / IP Logged  
Thanks for the info, yeh i know its a cheap sub, strap for cash after my head unit and being my first audio setup, id figure id start small.
aznboi3644 
Gold - Posts: 2,600
Gold spaceThis member consistently provides reliable informationspace
Joined: May 01, 2006
Location: United States
Posted: June 14, 2007 at 12:53 AM / IP Logged  
hey its cool...i started small....180 dollar sub, amp, and sealed box package from Circuit City. Two 10s, sealed box, and 150 watt mono amp pushing 75 watts to each sub....sounded good to me and loud enough at the time
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