70 Challenger stereo help needed

[70chall440]

I have never used one and to be honest not really sure how to. Any advice here would be appreciated. Perhaps some do's and don'ts, mounting locations, wiring preferences, etc.

[Bullitt-]

Purchased one capacitor & was surprised how physically large it was, about the size of a tall boy can and quite heavy. I don't think all of them are that large.
The terminals are exposed which most are, wish there was an insulating cover that came with one.

Something about like this.  http://www.amazon.com/BOSS-Audio-CPBK2-Farad-Capacitor/dp/B00BKV3DZW/ref=pd_cp_e_1

[70chall440]

appreciate the information.

[70chall440]

Anyone have any advice on amp mounting positions? I am planning to go in the trunk right behind the divider (directly under the rear speakers). I was thinking go mounting it onto the trunk floor (with a bracket to compensate for the floor contour) but now I am thinking about standing it up or mounting it to the cross braces (X behind the back seat divider). Not looking to hide it, just want it to be secure and accessible so I can connect it.

[dave73chally]

 :woo:Heat rises so when mounted vertically, it's passing through all of the circuitry before escaping. When horizontal the heatsink is working like it should. Some amps run cooler than others. A cooler amp will provide more power and won't burn up. That being said, a ton of people mount them vertically and have no problems, just make sure the fins are running vertical so the heat can escape. Also, regardless of position make sure the amp is in a small space that isn't very confined so can breath. That's my 2 cents but what do I know 

[70chall440]

good advice, I think I have found the spot right behind the spare tire mount. I was making fancy brackets and such but now think I will just drill 4 holes and use nutserts and mount it to the floor with some isolators. This should provide an air gap under it and around it. Not real sexy but should work ok.

[70chall440]

Here is what I will classify as a "dumb" question; the head unit has 4 RCA jack connectors (2xrear output and 2x front output); the amp has 4 as well (2 for input and 2 for AUX out). Am I to run the 2 rear out from the head unit to the 2 input on the amp? This seems logical but then again.. if this is the case, what is "aux out" on the amp for? I suspect the "front out" on the head unit is for either for perhaps a 4 channel amp or other such device.

[dave73chally]

On the headunit, 1 set of rca's are for front, other is for rear/subwoofer. Yes, run the rear rca on headunit to input on amp. The aux out on the amplifier can be used to hookup a subwoofer. The front rca's on the headunit can be used to run a 2nd amp for the front speakers.

[70chall440]

Exactly what I needed, thanks. Got the amp and speakers in.

[70chall440]

Finally got most of it all connected, should be testing it all soon.

[70chall440]

So I finally got it all hooked up. Initially the amp did not work, I switched out the amp which didn't do anything found out that the power lead wasn't making contact which I fixed, then I had power there and the amp was on but no sound. I had sound coming out of the front speakers but not the back. After some playing around I blew out the stock front speakers (3 speaker dash). So... I put some new speakers in the dash (major surgery) then then BAM!! the amp and rear speakers worked. Evidentially the little front speakers had some effect on the system. Now it all works, but what I am getting out of the amp is a lot of bass (bumping) which is a bit irritating. I suspect I need to play with the settings to keep the rear deck from vibrating apart. 

[Bullitt-]

getting the settings right can be frustrating... keep the faith.   

If you don't have the manual  http://www.manualslib.com/manual/79129/Jbl-Cs300-1.html?page=7#manual

[70chall440]

well I am going to start with reducing the bass, we will see what happens then. I don't really have a lot of experience in this arena; I normally just put them in and turned them on. while I do like music, I am not a fanatic or an expert.

[Bullitt-]

 Be sure to set the radio to neutral   ie: fader & balance in the middle,  base & treble to -0- & if it has a loudness setting turn that off, Mine has equalizer settings that can throw things off as well, set those to -0- if yours has and turn off any sound enhancement features. Set the input sensitivity & crossover frequency midway on the amp with the crossover mode at flat.  Start off with the radio volume at 20% max volume & keep stepping up the volume of the radio & decreasing the input sensitivity setting on the amp till it's as loud as you can imagine listening to with the radio at 80% max volume. 
 Then tune your rear amp output (crossover frequency) so the rear is balanced well with the front.
 After that you can play with the radios settings to get the sound you prefer.

[soundcontrol]

Jumping in late here, but that 1 Ch amp is probably made for a subwoofer, (might even have built in filters?) and you don't wanna connect your 2 rear 6 x 9's in mono. A sub in the trunk works good using 1 channel, because lower frequencys is best monodirectional, makes more impact that way, but if you run 2 powerful speakers in mono you will screw up the stereo separation inside the car and the sound will be less "clear", the left channel on the stereo should come fron the left dash speaker and the left rear, and opposite for the right channel. And if the 1 Ch amp is made for a subwoofer setup, hooking it up to the rear 6x9's will sound very "bumpy". I suggest you get a sub for the trunk and use the 1 Ch amp for that, and either get a 2 Ch amp for the rears or hook them up direct to the stereo.