The Skar Rp 1200 1 Wiring Diagram Guide: Easy Setup Tips
If you want strong bass in your car, a powerful amplifier like the Skar RP 1200.1D is a smart choice. But to get the best sound and keep your gear safe, you must wire everything the right way. Many beginners find wiring diagrams confusing. This guide explains the Skar RP 1200.1 wiring diagram in simple steps. You’ll learn what each wire does, how to connect your subwoofers, and how to avoid common mistakes.
What Is The Skar Rp 1200.1d Amplifier?
The Skar RP 1200.1D is a monoblock amplifier. This means it is designed to power subwoofers, not regular speakers. It can deliver up to 1200 watts RMS at 1 ohm. If you want deep bass, this amp is a popular choice.
- Class D: Runs cooler and uses less power.
- Stable at 1 Ohm: You can connect different subwoofer setups.
- Compact size: Easy to fit in most vehicles.
Why Wiring Diagrams Matter
A wiring diagram is a map that shows how to connect your amp, subwoofer, and power. It helps you:
- Get the correct sound output.
- Avoid damaging your amp or sub.
- Keep your car’s electrical system safe.
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Main Parts You Need
Before starting, gather these items:
- Skar RP 1200.1D amplifier
- Subwoofer(s): Single or dual voice coil
- Amplifier wiring kit (usually 4 gauge)
- RCA cables
- Speaker wire (14-16 gauge recommended)
- Fuse holder and fuse (usually 100-120A)
- Wire crimpers and electrical tape
Skar Rp 1200.1 Wiring Diagram Overview
Let’s break down the wiring diagram into clear steps. The main connections are:
- Power (B+): Connects to the car battery.
- Ground (GND): Connects to the car chassis.
- Remote (REM): Tells the amp when to turn on/off.
- Speaker Outputs: Connect to your subwoofer(s).
- RCA Inputs: Carry music signal from head unit.
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Step-by-step Wiring Instructions
1. Power Wire (b+)
- Use a thick wire (at least 4 gauge).
- Connect one end to the positive battery terminal.
- Place a fuse within 18 inches of the battery.
- Run the wire to the amp’s B+ terminal.
Tip: Route the wire away from moving parts and sharp edges.
2. Ground Wire (gnd)
- Use the same thickness as your power wire.
- Find bare metal on your car’s chassis (sand off any paint).
- Keep the ground wire short (under 18 inches).
- Connect to the amp’s GND terminal.
Non-obvious insight: A poor ground causes buzzing or weak bass.
3. Remote Wire (rem)
- Usually a thin blue wire.
- Connects from your head unit’s remote turn-on output to the amp’s REM terminal.
- This wire tells the amp to power on/off with your stereo.
4. Rca Cables
- Plug RCA cables into your head unit’s subwoofer output.
- Connect the other end to the amp’s RCA input.
Example: Use high-quality cables to avoid noise.
5. Speaker Wire To Subwoofer
- Use 14-16 gauge wire.
- Connect positive (+) and negative (−) from amp’s speaker output to the subwoofer.
- Wiring changes based on your subwoofer’s ohm rating and voice coil type (see next section).
How To Wire Subwoofers To Skar Rp 1200.1
The wiring depends on your subwoofer:
Single Voice Coil Subwoofer
- Connect positive (+) amp output to positive (+) subwoofer terminal.
- Connect negative (−) amp output to negative (−) subwoofer terminal.
Dual Voice Coil (dvc) Subwoofer
You can wire DVC subs for 1 ohm or 2 ohm load:
- 1 Ohm: Connect both positive coils together to amp’s (+), both negatives to (−).
- 2 Ohm: Wire one coil’s (+) and (−) to amp, leave other coil open.
Non-obvious insight: Always check your sub’s ratings before wiring. Wrong wiring can damage your amp.
Common Wiring Setups
Here are two popular wiring setups. Choose based on your subwoofer(s):
One Dvc 2 Ohm Subwoofer (wired To 1 Ohm)
- Connect each positive terminal on the sub to the amp’s (+).
- Connect each negative terminal to the amp’s (−).
- This gives a 1 ohm load—the Skar RP 1200.1D’s maximum power.
Two Svc 4 Ohm Subwoofers (wired To 2 Ohm)
- Connect both subwoofers’ positives together, then to amp’s (+).
- Connect both negatives together, then to amp’s (−).
- This gives a 2 ohm load.
Example Wiring Diagram (1 Dvc Subwoofer At 1 Ohm)
- Amp (+) → Sub (+) → Sub (+)
- Amp (−) → Sub (−) → Sub (−)
Check polarity: Mixing up positive and negative will make your bass sound weak.
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Skar Rp 1200.1d Wiring Diagram Table (subwoofer Load Options)
Below is a summary of wiring options for different subwoofer setups.
| Subwoofer Type | Number of Subs | Wiring Option | Final Ohm Load | Safe for Skar RP 1200.1D? |
|---|---|---|---|---|
| SVC 4 Ohm | 1 | Parallel | 4 Ohm | Yes (Lower Power) |
| SVC 4 Ohm | 2 | Parallel | 2 Ohm | Yes |
| DVC 2 Ohm | 1 | Parallel | 1 Ohm | Yes (Full Power) |
| DVC 4 Ohm | 2 | Series/Parallel | 1 Ohm | Yes |
How To Set Gain And Bass Boost
After wiring, set your amp’s gain and bass boost:
- Start with the gain knob at minimum.
- Play music, turn up your head unit to 75% volume.
- Slowly increase gain until you hear distortion, then back off.
- Use bass boost carefully—too much can damage your sub.
Example: Most users keep bass boost under +6dB.
Protecting Your Amp And Sub
- Always use a fuse on the main power wire.
- Make sure wires are tight and connections are clean.
- Never block the amp’s cooling vents.
- Don’t turn gain or bass boost all the way up.
Tip: Loose wires can cause your amp to go into “protect” mode or even catch fire.
Skar Rp 1200.1d Vs Other Amplifiers
If you’re comparing the Skar RP 1200. 1D to similar amps, here’s a quick look at some differences.
| Amplifier | Max RMS Power (1 Ohm) | Class | Footprint (inches) | Price Range |
|---|---|---|---|---|
| Skar RP 1200.1D | 1200W | D | 12.5 x 6.5 x 2.25 | $150-$180 |
| Rockford Fosgate R1200-1D | 1200W | D | 13.2 x 7.8 x 2 | $250-$300 |
| Pioneer GM-D9701 | 1200W | D | 12 x 8.5 x 2.5 | $180-$220 |
Common Wiring Mistakes And How To Avoid Them
- Wrong wire gauge: Too thin wire overheats. Use at least 4 gauge for power and ground.
- No fuse: Always use a fuse near the battery to prevent fires.
- Bad ground: Ground should be to bare metal. Avoid paint or rust.
- Polarity mistakes: Check (+) and (−) everywhere.
- Loose connections: Tighten all screws and check after one week.
Beginner tip: Double-check every connection before turning on your system.
Example: Power Wire Length And Voltage Drop
Let’s say your amp is in the trunk, 16 feet from the battery. Using a 4 gauge wire, voltage drop is less than 0. 2V at 1200W draw. If you use a thinner wire, voltage drop increases, which means less power and more heat.
Practical Tips For A Clean Install
- Plan wire routes before cutting.
- Use zip ties to keep cables neat.
- Label your wires for easy troubleshooting.
- Test everything before mounting panels back.
Pro insight: A little extra time making clean connections prevents problems later.
Skar Rp 1200.1d Wiring Example Table
Here’s a practical example for a typical setup.
| Connection | Wire Type | Destination | Tips |
|---|---|---|---|
| Power (B+) | 4 Gauge | Battery (+) with 120A fuse | Fuse within 18” of battery |
| Ground (GND) | 4 Gauge | Clean chassis bolt | Sand to bare metal |
| Remote (REM) | 18 Gauge | Head unit remote out | Usually blue wire |
| Speaker Output | 14 Gauge | Subwoofer (+/−) | Check polarity |
Skar Rp 1200.1d Safety And Troubleshooting
If your amp does not power up or goes into protection mode:
- Check all fuses (battery, amp).
- Inspect every wire for loose connections.
- Make sure ground is solid.
- If the amp is hot, check for blocked vents.
Non-obvious insight: “Protect” light often means a wiring or subwoofer problem, not always a bad amp.
When To Seek Professional Help
If you:
- Hear strange noises after wiring.
- Smell burning wires.
- Amp keeps shutting off.
It’s safer to get help from a professional installer.
Where To Find Official Wiring Diagrams
For the most accurate diagrams and specs, always check the official Skar Audio site or trusted sources. Here is one: Skar Audio Official Website.
Frequently Asked Questions
What Size Fuse Should I Use With The Skar Rp 1200.1d?
Use a 120 amp fuse on the main power wire, placed within 18 inches of the battery.
Can I Use My Factory Head Unit With This Amp?
Yes, but you may need a line output converter to get RCA outputs if your head unit doesn’t have them.
How Many Subs Can I Connect To The Rp 1200.1d?
You can connect one or two subwoofers, depending on their ohm rating and how you wire them.
Why Does My Amp Go Into Protect Mode?
Common reasons include bad ground, too low ohm load, or wiring errors. Double-check all connections.
Do I Need To Upgrade My Car’s Electrical System?
If your lights dim or you lose voltage, consider a bigger alternator or a second battery for best results.
Getting your Skar RP 1200.1D wired right is not just about booming bass—it’s about safety and reliability, too. Take your time, follow the diagram closely, and you’ll enjoy clear, strong bass every drive.
