I’m fairly new to car audio, never really did a setup quite as large as I’m planning to do until now but I'm unsure what steps I would need to take in order to calculate the total amp draw of my vehicle factory, in addition to this I’m not sure how accurate my calculation is for the audio equipment I plan on installing. I have a 2019 ford f-150 with the 5.0 v8 engine. Here’s a list of what I’m planning on installing:
Kicker 51KFDL7T102
Sony XAV-AX4000 (head unit)
Kicker 46CXA1200.1T
Kicker 46CSC674 (X4)
And additionally a full marine speaker setup for tailgating:
Package Includes: (2) Pair KICKER 45KM84L 8" 600 Watt Marine Boat Waterproof Speakers w/ LED's KM8 (1) Rockville RMWK4 4 AWG Gauge Waterproof Marine Amplifier/Amp Install Wire Kit (1) Rockville KRYPTON MF3 1600w Peak / 400w RMS 4 Channel Marine Amplifier Boat Amp New Page 4 Authorized Kicker...
rockvilleaudio.com
I would strongly appreciate advice on if all these things go together well or not, or if I’m missing anything from my setup, in addition to any information I can get on the alternator as well as any recommendations to which manufacturer I should be buying from.
Calculating the total amp draw for your factory vehicle, especially with the components you plan to install, is a crucial step in ensuring your electrical system can handle the load. Since you're setting up a system with significant power demands, let's break down the process step-by-step.
### Step 1: Calculate the Amp Draw of Your Components
1.
Kicker 51KFDL7T102 (Subwoofer):
- You need to check the RMS power handling, which typically is around 600-750 Watts for this model. For calculations, let’s assume 750 Watts.
- Formula: Amps = Watts / Volts
- Since your car’s electrical system runs on 12V, the draw will be:
\[
\text{Amps} = 750W / 12V \approx 62.5A
\]
2.
Sony XAV-AX4000 (Head Unit):
- Head units usually draw around 10-15 Watts. Let’s use 15 Watts for a safer estimate:
\[
\text{Amps} = 15W / 12V \approx 1.25A
\]
3.
Kicker 46CXA1200.1T (Mono Amplifier):
- This amp might draw up to 1200 Watts at max load. Let’s assume you’re aiming for about 1000 Watts realistically:
\[
\text{Amps} = 1000W / 12V \approx 83.3A
\]
4.
Kicker 46CSC674 (4 Speakers):
- Assuming each speaker is around 60 Watts RMS:
\[
\text{Total Watts} = 240W \quad (\text{for 4 speakers})
\]
\[
\text{Amps} = 240W / 12V \approx 20A
\]
5.
Marine Speaker Setup (from the link):
- If you're planning on using 4 marine speakers, and assuming each is around 75 Watts RMS:
\[
\text{Total Watts} = 300W \quad (\text{for 4 speakers})
\]
\[
\text{Amps} = 300W / 12V \approx 25A
\]
### Step 2: Total Amp Draw Calculation
Now add up all the amp draws:
- Kicker Subwoofer: 62.5A
- Head Unit: 1.25A
- Kicker Amplifier: 83.3A
- Kicker Speakers: 20A
- Marine System: 25A
### Total:
\[
\text{Total Amps} = 62.5 + 1.25 + 83.3 + 20 + 25 = 192.05A
\]
### Step 3: Assess Your Alternator and Electrical System
You’ll need to verify the capacity of your alternator on your 2019 Ford F-150 with the 5.0 V8. Most stock alternators can generate around 150-200 Amps. To handle peak loads (like starting the vehicle), it’s recommended to have an alternator that can handle about 150% of your total amp draw.
For your case, you might need an upgraded alternator (like a high-output model) to maintain reliability without draining your battery or risking voltage drops.
### Recommendations for Installation
1.
Wiring: Ensure you use the proper gauge wiring. Typically, for a system drawing around 192A, you'll want 1/0 AWG for power and ground.
2.
Fuses: Use appropriate fuses for each component -- for example, a 100A fuse for the Kicker amplifier.
3.
Capacitance: If you're experiencing voltage drops, adding a capacitor can help stabilize voltage during peaks.
### Compatibility and Recommendations
1.
Component Compatibility: Everything looks compatible; ensure your subwoofer amp matches the impedance of the subwoofer and speakers.
2.
Manufacturer Recommendations: Always consider reputable brands: Kicker, Sony, Rockville (for marine audio), and consider additional equipment from brands like Sundown, Alpine, or Rockford Fosgate.
Please ensure you consult your owner’s manual and the installation guidelines for all equipment. If you have specific preferences or additional questions about installation or tuning, feel free to ask!
I invite other members to also chime in with their insights or recommendations!
