1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your Pyle PDA6BU 2-Channel Digital Stereo Amplifier Receiver and the accompanying Enrock EKMR408W 4-inch 3-Way Box Speakers and 16-gauge speaker wire. Please read this manual thoroughly before using the product to ensure proper function and to prevent damage.
2. Important Safety Instructions
- Do not expose this unit to rain or moisture.
- Do not block any ventilation openings.
- Ensure proper voltage supply before connecting the unit to power.
- Do not attempt to repair this unit yourself. Refer all servicing to qualified personnel.
- Keep the unit away from heat sources such as radiators, heat registers, stoves, or other apparatus that produce heat.
- Use only attachments/accessories specified by the manufacturer.
- Unplug this unit during lightning storms or when unused for long periods.
- Avoid placing heavy objects on the unit.
- Ensure adequate ventilation around the amplifier to prevent overheating.
3. Package Contents
Verify that all items are present in your package:
- 1 x Pyle PDA6BU Bluetooth Stereo Home Amplifier Receiver Unit
- 4 x Enrock EKMR408W 4-Inch 3-Way Indoor/Outdoor Box Speakers
- 1 x 50 Feet 16-Gauge Speaker Wire
- 1 x Remote Control for Pyle PDA6BU
- 1 x 3.5mm AUX Input Cable

Image: Complete Pyle PDA6BU and Enrock speaker system bundle, including the amplifier, four white box speakers, a spool of speaker wire, and the remote control.
4. Product Features
4.1 Pyle PDA6BU Amplifier Receiver
- Power Output: 200 Watts Peak Power @ 4 Ohm, THD Less than 0.1%
- Connectivity: Bluetooth Wireless Music Streaming, USB/SD Flash Drive Memory Compatible, 1/8" AUX Input, Two 1/4" Microphone Inputs, RCA Input, RCA Line Out.
- Radio: AM/FM Stereo Receiver with Auto Scan and Frequency Display, 60 station memory presets.
- Display: LED Screen showing AM/FM Frequency, MP3 Song Number, and Play Time.
- Controls: Full Function Blue LED Control Panel with Pre/Next/Play/Pause for USB/SD, Bass, Treble, Balance, Volume, Mic Volume, Echo.
- Remote Control: Full function remote included.
- USB Port: Supports MP3 playback and cellular phone recharging.
- Bluetooth Range: Up to 65 feet.

Image: Front view of the Pyle PDA6BU amplifier receiver, showcasing its various controls, LED display, USB/SD inputs, and the included remote control.
4.2 Enrock EKMR408W 4-Inch 3-Way Box Speakers
- Type: 4-inch three-way indoor/outdoor box speaker.
- Power: 100 Watts Peak Power, 50 Watts RMS Power.
- Components: 4-inch Woofer, 0.79-inch Tweeter.
- Impedance: 4 to 6 Ohms.
- Frequency Response: 100Hz-20kHz.
- Sensitivity: 85 dB 2.83v @ 1 Meter.
- Weight: 2.8 pounds per speaker.
- Durability: Fully marinized weather-proof construction with special UV coatings for plastic surfaces.
4.3 Enrock 16-Gauge Speaker Wire
- Length: 50 Feet.
- Gauge: 16-Gauge.
- Material: Copper Clad Aluminum (CCA).
- Features: Plastic jacket for signal protection, white line for polarity identification.

Image: A spool of 50-foot, 16-gauge Enrock speaker wire, showing the copper-clad aluminum conductors and clear insulation.
5. Setup Instructions
5.1 Speaker Placement
Position the Enrock speakers in desired locations, ensuring they are securely mounted or placed on stable surfaces. For optimal sound, consider placing speakers at ear level and equidistant from the listening area. These speakers are designed for both indoor and outdoor use.

Image: Two white Enrock box speakers mounted under a pergola on an outdoor patio, demonstrating a typical installation scenario.
5.2 Connecting Speakers to the Amplifier
- Ensure the Pyle PDA6BU amplifier is turned off and unplugged from the power outlet.
- Prepare the speaker wire: Strip approximately 1/2 inch of insulation from both ends of the speaker wire. Twist the exposed strands tightly.
- Connect the speaker wire to the Enrock speakers: Locate the speaker terminals on the back of each speaker. Connect the positive (+) terminal (usually red or marked with a white line on the wire) to the positive terminal on the speaker, and the negative (-) terminal (usually black) to the negative terminal on the speaker. Ensure no stray wire strands are touching each other, which could cause a short circuit.
- Connect the speaker wire to the Pyle PDA6BU amplifier: Locate the speaker output terminals on the rear of the amplifier. Connect the positive (+) wire from each speaker to the corresponding positive (+) terminal on the amplifier, and the negative (-) wire to the negative (-) terminal. The PDA6BU supports two channels (Left and Right). Connect two speakers to the Left channel outputs and two speakers to the Right channel outputs, ensuring correct polarity for all connections.
- Note: The amplifier is rated for 200 watts peak power. While it can drive four speakers, ensure the total impedance and power handling are within safe limits to prevent overheating. If using all four speakers, distribute them evenly across the two channels.
5.3 Connecting Audio Sources
The Pyle PDA6BU offers multiple input options:
- Bluetooth: For wireless streaming from smartphones, tablets, or computers.
- USB/SD: Insert a USB flash drive or SD card into the front panel slots for MP3 playback.
- AUX Input: Connect external audio devices (e.g., MP3 players, laptops) using the included 3.5mm AUX cable to the 1/8" AUX input jack on the front panel.
- RCA Input: Connect devices with RCA outputs (e.g., CD players, DVD players) to the RCA input jacks on the rear panel.
- Microphone Inputs: Connect microphones to the two 1/4" MIC inputs on the front panel.
- FM Antenna: Connect the included FM antenna to the FM antenna terminal on the rear panel for radio reception. Extend the antenna for better signal.
5.4 Power Connection
Once all audio and speaker connections are made, plug the amplifier's power cord into a standard AC power outlet.
6. Operating Instructions
6.1 Powering On/Off
Press the POWER button on the front panel or the remote control to turn the unit on or off. The blue LED display will illuminate when the unit is on.
6.2 Input Selection
Use the INPUT SELECTOR knob on the front panel or the MODE button on the remote to cycle through available input sources: Bluetooth (BT), USB, SD, AUX, FM, AM, CD, DVD.
6.3 Volume and Tone Controls
- VOLUME: Adjust the master volume using the large knob on the front panel or the VOL+ / VOL- buttons on the remote.
- BASS / TREBLE: Adjust the bass and treble levels using the dedicated knobs on the front panel to customize the sound.
- BALANCE: Adjust the left/right speaker balance using the knob on the front panel.
- MIC VOL / ECHO: Adjust microphone volume and echo effect using the dedicated knobs when microphones are connected.
6.4 Bluetooth Operation
- Select "BT" mode using the Input Selector or Mode button. The LED display will show "BT".
- On your Bluetooth-enabled device (smartphone, tablet, etc.), search for available Bluetooth devices.
- Select "Pyle Audio" or similar from the list.
- Once paired, the amplifier will confirm the connection, and you can stream audio wirelessly.
- Use your device or the amplifier's controls (Play/Pause, Next/Previous) to manage playback.
6.5 USB/SD Card Playback
- Insert a USB flash drive or SD card containing MP3 audio files into the corresponding slot on the front panel.
- The unit will automatically switch to USB/SD mode and begin playing the first track.
- Use the PREV / NEXT / PLAY/PAUSE buttons on the front panel or remote to control playback.
- The LED screen will display the MP3 song number and play time.
6.6 FM Radio Operation
- Select "FM" mode using the Input Selector or Mode button.
- Press the AUTO SCAN button (or similar on remote) to automatically scan and store available radio stations. The unit can store up to 60 presets.
- Use the PREV / NEXT buttons to navigate through stored stations or manually tune.
- Adjust the FM antenna for optimal reception.
7. Maintenance
- Cleaning: Wipe the unit with a soft, dry cloth. Do not use harsh chemicals or abrasive cleaners.
- Ventilation: Ensure the amplifier's ventilation openings are clear of dust and obstructions to prevent overheating.
- Speaker Care: For outdoor speakers, periodically check for debris or moisture accumulation. The weather-resistant design helps protect them, but extreme conditions should be avoided if possible.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No power | Power cord not connected; power outlet not active; unit off. | Check power cord connection; test outlet; press POWER button. |
| No sound | Incorrect input selected; volume too low; speaker wires disconnected/incorrectly wired; source device not playing. | Select correct input; increase volume; check speaker connections and polarity; ensure source device is playing. |
| Humming noise | Ground loop issue; faulty cable; interference. | Try a different audio cable; ensure all connections are secure; try plugging into a different outlet; disconnect unused inputs. |
| Bluetooth connection drops | Device too far; interference; multiple devices trying to connect. | Move device closer to amplifier; ensure no obstructions; disconnect other Bluetooth devices. |
| Poor FM radio reception | Antenna not connected or extended; weak signal. | Connect and fully extend the FM antenna; try repositioning the antenna for better signal. |
| Amplifier overheats | Insufficient ventilation; driving too many speakers or speakers with incorrect impedance; excessive volume. | Ensure clear ventilation around the unit; check speaker impedance and connections; reduce volume. |
9. Specifications
9.1 Pyle PDA6BU Amplifier Receiver
- Output Power: 200 Watts Peak (100 Watts RMS)
- Channels: 2-Channel
- THD: Less than 0.1%
- Impedance: 4-8 Ohms (recommended)
- Connectivity: Bluetooth, USB, SD, AUX (3.5mm), RCA, 1/4" Mic Inputs
- Radio: AM/FM with Auto Scan and 60 Presets
- Bluetooth Range: Up to 65 ft.
- Compatible Devices: Personal Computer, Smartphone, Speaker, Tablet
- Audio Output Mode: Stereo
- Supported Audio Formats (USB/SD): MP3, WAV, WMA
- Item Weight: Approximately 9 Pounds (for the bundle)
9.2 Enrock EKMR408W Box Speakers
- Speaker Type: 3-Way
- Woofer Size: 4 inches
- Tweeter Size: 0.79 inches
- Peak Power: 100 Watts per speaker
- RMS Power: 50 Watts per speaker
- Impedance: 4 to 6 Ohms
- Frequency Response: 100Hz-20kHz
- Sensitivity: 85 dB (2.83v @ 1 Meter)
- Weight: 2.8 pounds per speaker
- Features: Fully Marinized Weather Proof, UV coatings
9.3 Enrock Speaker Wire
- Length: 50 Feet
- Gauge: 16-Gauge
- Material: Copper Clad Aluminum (CCA)
10. Warranty and Support
This product bundle comes with a 1-year warranty. For technical support, service, or warranty claims, please contact the manufacturer or your authorized dealer. Keep your purchase receipt as proof of purchase.
For further assistance, refer to the official Pyle website or contact their customer support.