PS40: How To Set Up & Use

Introduction

The Rockville PS40 Micro Amp is a compact and powerful amplifier designed for vehicle audio systems. This guide will walk you through installing, wiring, and configuring your PS40 amp, including power connections, speaker wiring, input sources, and Bluetooth pairing.

Step 1: Unboxing and Components

Your PS40 Micro Amp comes with:

• The PS40 amplifier
• Mounting hardware (for secure installation in your vehicle)
• Euroblock-to-RCA adapters (for connecting high-level speaker outputs from your head unit to the amp)

Step 2: Powering the Amplifier

To connect your PS40 to power, use these three wires:

1. Red wire (12V Positive) – Connect this to the 12V terminal of your vehicle’s battery.
2. Blue remote wire – Connect this to the remote output of your head unit.
   • This allows the amp to turn on/off with the head unit.
   • If your head unit doesn’t have a remote output, connect this wire to your vehicle’s accessory lead.
3. Black ground wire – Secure this to the vehicle’s metal chassis.

Step 3: Connecting the Audio Inputs

Option 1: RCA Inputs (Preferred)

• The PS40 features front and rear RCA inputs labeled on the amplifier.
• Use RCA cables to connect your head unit’s front and rear RCA outputs to the amp’s corresponding front and rear RCA inputs.

Option 2: High-Level Inputs (If Your Head Unit Lacks RCA Outputs)

• If your head unit only has high-level speaker outputs, use the Euroblock-to-RCA adapters included.
• Connect the speaker output wires from your head unit into the Euroblock adapters.
• Then, plug the adapters into the amp’s front and rear RCA inputs.

Step 4: Wiring Your Speakers

The PS40 can power four speakers, each with a dedicated channel.

1. White wires → Front Left Speaker
   • Solid White = Positive (+)
   • White with Black Stripe = Negative (-)
2. Gray wires → Front Right Speaker
   • Solid Gray = Positive (+)
   • Gray with Black Stripe = Negative (-)
3. Green wires → Rear Left Speaker
   • Solid Green = Positive (+)
   • Green with Black Stripe = Negative (-)
4. Purple wires → Rear Right Speaker
   • Solid Purple = Positive (+)
   • Purple with Black Stripe = Negative (-)

Speaker Wiring Options

• The PS40 supports 2-ohm stability per channel, meaning you can wire:
  • One 2-ohm speaker per channel
  • Two 4-ohm speakers in parallel per channel
  • Four 8-ohm speakers in parallel per channel
• If the total impedance exceeds 2 ohms, the amp will deliver lower power output.

Step 5: Adjusting the Amp Settings

The PS40 includes built-in crossovers and a bass EQ for fine-tuning your audio.

1. Crossover Settings
   • Low-Pass Filter (LPF): Plays only bass frequencies below the set frequency.
   • High-Pass Filter (HPF): Plays only frequencies above the set frequency.
   • Full Range: Plays the entire frequency spectrum.
   • Use the frequency knob to adjust the crossover point (e.g., setting HPF to 100Hz allows only sounds above 100Hz).
2. Bass EQ
   • Enhances bass response.
   • Options: 0dB, +3dB, +6dB.

Step 6: Bluetooth Pairing

The PS40 includes built-in Bluetooth for wireless music streaming.

1. Turn on the amplifier.
2. Enable Bluetooth mode on your smartphone or tablet.
3. Search for "PS40" in your device’s Bluetooth settings.
4. Tap to pair—you’ll hear a chime confirming the connection.
5. Play music from your device, and it will stream through your connected speakers.

Step 7: Testing Your Setup

• Play audio from your head unit or Bluetooth device.
• Adjust gain, crossover, and bass EQ settings for the best sound.
• Ensure all speakers are playing correctly and wired properly.

Conclusion

The Rockville PS40 Micro Amp is an easy-to-install solution for enhancing your car audio system. By following this guide, you’ll have a clean and powerful audio setup in no time.