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Using rear speaker output to two sources?


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jafo 
Member - Posts: 1
Member spacespace
Joined: February 14, 2003
Location: United States
Posted: February 14, 2003 at 6:30 PM / IP Logged  

I'm trying to find out if my JL 300/2 amp draws power from the head unit when using speaker level input?

My proplem is my head unit only has front and rear speaker level outputs and I want to add a sub.

If I connect my rear output to my rear speakers and to my amp for the sub will the resistance change?

If it does will a crossover solve this change in resistance? 

I don't want to draw more than 4 ohms from the rear output on the head unit.

Thanks,

haemphyst 
Platinum - Posts: 5,059
Platinum spaceThis member has been recognized as an authority in Electrical Theory. Click here for more info.spaceThis member has been recognized as an authority in Mobile Audio and Video. Click here for more info.spacespace
Joined: January 19, 2003
Location: Michigan, Bouvet Island
Posted: February 14, 2003 at 8:32 PM / IP Logged  
No, that is perfectly acceptable to do, as the input impedance of your amp will be quite high, perhaps on the order of a few kilo-ohms.  The crossover is not necessary, and would not work anyhow.
It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."

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