Wiring an amp

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=77389
Printed Date: May 02, 2024 at 5:44 AM

Topic: Wiring an amp

Posted By: Black Dak
Subject: Wiring an amp
Date Posted: May 07, 2006 at 1:46 AM

I am sure you guys get tired of answering qustions like this, but I have to ask anyway.

I am hoping to wire in my amp on Sunday. I starting laying cable, but when it came time to connect them to the amp itself, I ran into some confusion. I feel like an idiot for asking, but I don't want to connect it wrong.

These are the connections on the amp. It's a Rockford Fosgate Punch 201s 600 watt amp (will be running a 10" Rockford Fosgate Punch HE sub).

HP-AP-LP CROSSOVER (selector switch)

+12db/+6 db/0db (selector switch)

High Level Input (4 wire plug)

Left and Right POS and NEG connections

B+

GND

This amp was running two of these subs before, but I only have room for one in it's new location. I bought all of it used, so no documentation.

I undertand where the ground cable goes, and it appers that the B+ might be where my 12V source goes? What about the signal wire? I haven't done much of this...

Also, are the L and R + and - connections possibly for addition speakers? Are they imputs?

Replies:

Posted By: jesster
Date Posted: May 07, 2006 at 10:41 AM

Here is the manual for the 150S thru the 700S series of am[ps. Your amp is at max a 200W amp bridged int 4 ohms and thats at 14.4 Volts. Youcan look here also Crutchfield carries it and has info https://www.crutchfield.com/S-TRI5o7nytp3/cgi-bin/ProdView.asp?g=120&id=detailed_info&i=575201S#Inputs%20and%20Outputs The manual tells all. Hope it helps.

https://www.rockfordfosgate.com/scripts/rightnow.cfg/php.exe/enduser/fattach_get.php?p_sid=5zhKeV6i&p_tbl=9&p_id=278&p_created=1083252061

Posted By: jesster
Date Posted: May 07, 2006 at 10:52 AM

You are correct the B+ is power the GND is ground.

You wont use the High level imput (molex).

The left, right inputs hook to the RCA outputs from the back of your deck.

The REM input is where you put the wire coming from the remote turn on lead from the back of your head unit (must be connected).

The left right screw teminals that say bridged under them is where you connect you speaker leads. Connect them bridged to get full output from you amp.

So put your postive speaker lead on the 1st one from the left and your Neg speaker lead on the 4th one from the left.

Posted By: gregory863
Date Posted: May 07, 2006 at 11:08 AM

also you gotta know what is the impedance of the woof. you amp is 2 ohm stable. when you bridge to one woof you have to get it right or smoke the amp. is you woof single voice coil? dual voice? four ohm? dual four ohm? 8 ohm? dual 2 ohm?

Posted By: Black Dak
Date Posted: May 07, 2006 at 4:27 PM

The sub is 400 watt, 4 ohm, single 2" voice coil. Still okay to run it bridged?

Posted By: mad550
Date Posted: May 07, 2006 at 4:43 PM

Yes since just about all amps are designed specifically for that purpose

-------------
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Nothing is impossible!
Do it right the first time or don't do it at all.

Posted By: Black Dak
Date Posted: May 07, 2006 at 4:46 PM

Right on, thanks!

Posted By: gregory863
Date Posted: May 08, 2006 at 8:34 AM

yes it si the right woof. i'll tell you why. your amp is a stereo bridgeable amp. it is stable down to two ohms. when an amp is bridged each half of the amp sees half of the impedance. so when you bridge an amp to a 4ohm load it runs at two ohms.