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glass22 
Copper - Posts: 95
Copper spacespace
Joined: June 10, 2009
Location: Arizona, United States
Posted: June 21, 2009 at 10:15 AM / IP Logged  

The car is an 03 sentra.  I have in the doors Memphis MSQ5 run off a 200 watt amp.  I built a center pod in the dash and installed a Memphis PR 5 1/4 (4 ohm speaker).  It is bridged off of the headunit.  (I plan on installing an amp/center channel processor one day)  The problem I have is being how close it is to my ears it out plays the MSQ's.  I read somewhere I can put a 4 ohm resister inline with the PR to make it softer.  Possible?

Thanks,

Zakk

i am an idiot 
Platinum - Posts: 13,674
Platinum spaceThis member consistently provides reliable informationspace
Joined: September 21, 2006
Location: Louisiana, United States
Posted: June 21, 2009 at 10:54 AM / IP Logged  

If you do that, the resistor needs to be large enough to handle the power that it is going to be soaking up.  Radio Shack sells an 8 Ohm 20 watt resistor, you can parallel 2 of these to give you a 4 Ohm 40 watt resistor.  When you install it, you really need to play it for a while and monitor the resistors for heat.  They should not heat up with radio power, but I would really hate for it to melt something in your dash.  If they are heating up, you may have to mount them to some sort of a heat sink.

glass22 
Copper - Posts: 95
Copper spacespace
Joined: June 10, 2009
Location: Arizona, United States
Posted: June 21, 2009 at 1:28 PM / IP Logged  

did not think of the heat.  I have an infrared temp gauge so monitoring it won't be a problem.  Thanks for the heads up.

Zak


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