Ok guys finally I have everything I need, now time to put it in. I have Infinity reference 610cs 6.5" with seperate tweeters for the doors, Thunderform box loaded with Kenwood 10" subs and a JBL 360w 4 channel amp. The Infinitys have seperate crossovers and the amp has built in crossovers. The Inifities peak at 90w. Will I be putting them to the limit running them at 90W each? Is it possible to run say 60w to the fronts and 120 to the subs. The way I see it now it will be 90W to the door speakers each and same with teh subs. The rear speakers are not a concern cause I am just leaving them stock and no amp. Any help will be appreciated. I am mounting teh tweeters similar to 54regcab. I too have a reg cab but its a 97. Give me some ideas. THANKS ALOT

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97 F150 XLT Reg Cab 4X4 5spd, extra leaf in rear, adds about 1 1/2 lift, torsion bars 2 turns, BFG-AT's 285/75/16.

 

It depends on your amp actually. For the front speakers it is good that you are running high power to them. They will be louder and clearer as long as you don't make the sound distort by turning them up too much. Your amp should have a gain control on it so you can adjust how loud the front speakers are.

The sub is a different story. Does the amp allow you to bridge 2 of the channels together, thus making a 3 channel amp instead of a 4 channel? Is the amp 2 ohm stable? If the answer is yes to both, that is a good thing. You can bridge 2 of the channels together(usually by using the + of the right channel with the - of the left channel for your speaker wires), thus doubling your power. You can then run the subs in series(connecting both subs to the same speaker lead), which cuts your resistance in half(making a 2 ohm load instead of the standard 4 ohm) and doubling your power again.

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Boss™

Just Ordered 2001 F-150 Lariat, Oxford White/Silver 4x4, medium graphite leather, SC, SB, SS, 99L 5.4L, 44E tran, 7700# payload, Class III Tow, 3.73LS, Skids, Capts chairs, 4W disc ABS, shift-on-fly, keyless, HD everything
Planned Mods:
"Protected by Smith&Wesson" sticker, Westin Chromed Stainless Nerf Bars, ARE LS II bed cover, Bedrug™, Gibson Swept Side Cat Back, K&N filter w/airbox mods, headers, Superchip, 3" body lift with at least 33's, alarm/pager/auto start system, stereo system

 

Use your gain control on the front channel.
This will solve your problem.

 

Chances are your JBL amp will put out a maximum power of 90, and will put out b/n 40 - 50 watts RMS which will be good for your components.

Most 4 channel amps that come out now can have 2 channels bridged so the become a 3 channel amp. And if can be bridged and run stable at 2 ohms then you'll be okay, like Boss said.

How many subs are you running?

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black 97' x-cab 4x4, 5 speed 4.6, black westin nerf bars, 6 cd changer and a 12 premier sub, pilot ground searchers, borla SS split rear exhaust, K&N genII, bosch +4 plugs, superchip, flexalite electric fan, v-tech oval side window covers, IAS shocks


still to come: new spark plug wires, new rims and tires.