JL Audio HD amps. Batt/ALT question.

[Fast-N-Loud]

Just purchased JL Audio HD 600/4 and HD750/1 amps for my 2013 Jeep Wrangler. Right now I have a Kenwood XR900/5 amp and I do not have any problems with dimming lights or low power. Will i have any problems with dimming lights with my new amps that are replacing the Kenwood. Stock Alternator is a 160A and the car comes with a prretty beafy battery, not sure the of the output but the system runs just fine as it site. Adding about 400 watts to it with these new amps. But they are supose to be very efficient and easy on the electrical system. THOUGHTS ANYONE.

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[LosIsATool 5,000+ posts]

Regulated power supplies like the HDs pull way more current, that's the downside to them. But you should be fine