just bought a jl 300/4 amp from a lady in the neighborhood. it was her sons and he moved away and left it. she told me to make her an offer so i said $100 and she took it. i dont even know if it works but its in perfect condition. i figured for $100 if it doesnt work i can repair it and still be a deal. whats the best way to test it outside the car?

 

+12v from the battery to the power and remote on the amp, get a 3.5mm to RCA y-adapter to send the signal from an iPod or whatever to the amp, and hook some speakers up to it.

 

thnx for replying. is the ground needed for test? i felt good about this find when i paid the lady. now im not so confident .i dont see any stickers on the amp at all. s/n or model no. nowhere on the unit. didnt think to check for this at the time. not a good sign right? i think ill take it to a shop and have them test it for me.

 

there has to be something on the amp.... U can google the name of the amp and see what u get

 

Yes, ground is required.

 

The 300/4 looks like this but will be silver not blue, and will also say 300/4 on the bottom right of the amp in this picture. Mine is painted LS to match my car.

 

i like the way u wanted that.. did u do that with paint out the store or u had it done professionally

 

sorry, i wasnt very clear. what i meant was the serial number sticker is gone so its possible the amp is "hot"

 

ok. thnx again wrathernaut

 

^^thats nice. color matched. i love that idea. wheres it mounted?

 

I wanted to keep the pass through available on my sedan so I fabbed up a couple of MDF mounting boards to attach to the brace behind the rear seats. then the amps mounted to the boards. A body shop painted the amps with actual LS.




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i like it blue dream. the pass-thru comes in handy sometimes i agree. this doesnt look difficult. i think i can do this myself. btw, did you remove your stock sub or is it still in? thank you sir

 

Stock sub is still in but disconnected, and I pulled the Bose amp out of the car. Here's my build thread if you're interested. https://g35driver.com/forums/audio-v...hlight=finally

 

^looks nice bro

 

thanks. ill take a look. btw, i read about your 300/4 malfunction. did u get it fixed? if so, what was the problem?