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would this setup work?


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grassfeeder 
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Joined: June 25, 2005
Posted: June 25, 2005 at 6:29 PM / IP Logged  
Do you guys think it's at all possible to run JL 10w0's off of the 5th channel of the Alpine MRV-F450 amp?

F450 specs - https://iweb.alpine-usa.com/pls...in=10

I know it may not be the most ideal but would it work, and well enough?

racer427 
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Location: United States
Posted: June 25, 2005 at 7:37 PM / IP Logged  

How many 10wO's do you plan on running?

My brother-in-law has that same amp in his single cab Chevy truck and is running 2 W1's with it and it sounds really good.

Chris

Alpine CDA-9833 HU
Diamond Audio M661 Components
MTX Thunder T6.6 Components:rear fill:
Cadence Q400 4 Channel Mains + rears
Thunder 801D Subs
MTX 1004 10's
Dual 4g wire to rear
4g grounds
grassfeeder 
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Posted: June 25, 2005 at 7:41 PM / IP Logged  
well, I wanted to posibly run 2 10w0's off of the 5th channel alone.........
racer427 
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Location: United States
Posted: June 25, 2005 at 7:42 PM / IP Logged  
What type of vehicle?
Alpine CDA-9833 HU
Diamond Audio M661 Components
MTX Thunder T6.6 Components:rear fill:
Cadence Q400 4 Channel Mains + rears
Thunder 801D Subs
MTX 1004 10's
Dual 4g wire to rear
4g grounds
grassfeeder 
Member - Posts: 4
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Joined: June 25, 2005
Posted: June 25, 2005 at 7:45 PM / IP Logged  
'02 VW Jetta......
racer427 
Silver - Posts: 381
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Joined: August 04, 2004
Location: United States
Posted: June 25, 2005 at 7:58 PM / IP Logged  

In taht situation, I would probably go with a Vented enclosure with those subs and with the power that you have to supply them. If installed in the right vented enclosure they will sound real good and pound pretty hard too.

Chris

Alpine CDA-9833 HU
Diamond Audio M661 Components
MTX Thunder T6.6 Components:rear fill:
Cadence Q400 4 Channel Mains + rears
Thunder 801D Subs
MTX 1004 10's
Dual 4g wire to rear
4g grounds
grassfeeder 
Member - Posts: 4
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Joined: June 25, 2005
Posted: June 25, 2005 at 8:02 PM / IP Logged  

So you don't see any problem running both 10's on just that one fifth channel of the sub?  I've got channels 1-4 taken up by my Focals in the car.  What Ohm sub should I look at?  If I am reading things correctly if I go with two 4ohm subs and wire them in parallel it'll give me a 2ohm total load right?  Can my amp handle that?

I'm terrible with this stuff......

stevdart 
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Joined: January 24, 2004
Location: Pennsylvania, United States
Posted: June 26, 2005 at 12:18 AM / IP Logged  

You're not the only one, grassfeeder, as sub wiring can be very confusing.  The fifth channel is mono and capable of a 2 ohm load.  However, it can take a higher load such as 4 ohms, but will not produce as much power that way.  Choose subs that will give you a final 2 ohms when connected together.  Possibilities are: 

Using two subs for a 2 ohm load:

  • two single voice coil 4 ohms
  • two dual voice coil 2 ohms

Using two subs for higher than 2 ohms:

  • two 8 ohm SVC subs (4 ohm load)
  • two 6 ohm SVC subs  (3 ohm load)
  • two DVC 3 ohm subs  (3 ohm load)
  • two DVC 4 ohm subs  (4 ohm load)

Use a wiring wizard such as http://www.rockfordfosgate.com/rftech/wiringwizard.asp before you buy to be on the safe side.

Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.

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