1. Introduction
Thank you for choosing the XTUGA KP4 4 Channel Audio Mixer. This manual provides detailed instructions on how to set up, operate, and maintain your audio mixer to ensure optimal performance. Please read this manual thoroughly before using the device.
2. Product Overview
The XTUGA KP4 is a versatile 4-channel audio mixer designed for various applications including live streaming, karaoke, studio recording, and DJing. It features a 16-bit DSP effects processor, +48V phantom power, USB audio interface, and Bluetooth connectivity.
Figure 2.1: Front view of the XTUGA KP4 Audio Mixer.
2.1. Controls and Functions
Figure 2.2: Labeled diagram of the XTUGA KP4 Audio Mixer's controls.
- Mic Input: XLR input for microphones.
- Phantom +48V Switch: Activates +48V phantom power for condenser microphones on channels 1 and 2.
- Line Input: 1/4" TRS input for line-level instruments or devices.
- Gain Knob: Adjusts the input sensitivity for each channel.
- Pad Attenuation Knob: Reduces input signal level if it's too hot.
- High/Mid/Low Knob (EQ): Adjusts the treble, midrange, and bass frequencies for each channel.
- Volume Adjustment: Controls the individual channel volume.
- Aux Knob: Sends signal to the AUX output for external effects or monitoring.
- CD/Tape Input (RCA): Stereo RCA inputs for connecting external audio sources like CD players or tape decks.
- RCA Input/Output (CD/Tape, Returns): Stereo RCA connections for CD/Tape input and effect returns.
- Main Output Socket: XLR and 1/4" TRS outputs for connecting to main speakers or recording devices.
- Monitoring Socket: 1/4" TRS output for headphones or control room monitors.
- MP3 Control: Controls for USB/Bluetooth playback (Play/Pause, Next, Previous).
- Program Knob: Selects one of the 16 built-in DSP effects. Push to confirm selection.
- Main Volume Adjustment: Faders to control the overall main output volume.
- Monitor Volume Adjustment: Controls the volume for headphones/control room output.
- Power Switch: Turns the mixer on or off.
- Power Socket: Connects the power adapter.
3. Setup
3.1. Power Connection
Connect the included power adapter to the Power Socket (18) on the rear of the mixer and then plug it into a suitable power outlet. Ensure the Power Switch (17) is in the OFF position before connecting power.
3.2. Connecting Audio Sources
- Microphones: Connect XLR microphones to the Mic Inputs (1). For condenser microphones requiring power, activate the +48V Phantom Switch (2) for the respective channel.
- Line-Level Devices: Connect instruments or audio players to the Line Inputs (3) using 1/4" TRS cables, or to the CD/Tape Input (9) using RCA cables.
Figure 3.1: Independent +48V phantom power for condenser microphones.
3.3. Connecting to a Computer (USB Audio Interface)
The KP4 mixer can function as a USB audio interface. Connect the mixer to your computer using a USB cable. The mixer will be recognized as an audio device, allowing you to record or play back audio through it.
Figure 3.2: Connecting the mixer to a computer via USB for audio transmission.
Figure 3.3: The mixer supports high-quality recording and editing with a computer.
3.4. Connecting Output Devices
- Main Speakers: Connect your main speakers to the Main Output Sockets (11) using XLR or 1/4" TRS cables.
- Headphones/Monitors: Connect headphones or control room monitors to the Monitoring Socket (12).
4. Operating Instructions
4.1. Basic Operation
- Turn on the mixer using the Power Switch (17).
- Adjust the Gain Knob (4) for each input channel to achieve an optimal input level without clipping (the PEAK indicator should not light up consistently).
- Use the High/Mid/Low Knobs (6) to fine-tune the tonal characteristics of each channel.
- Adjust the individual channel Volume Adjustment (7) to balance the levels of different inputs.
- Control the overall output volume using the Main Volume Adjustment (15) faders.
- Adjust the Monitor Volume Adjustment (16) for your headphones or control room speakers.
4.2. DSP Effects
The KP4 features a 16-bit digital stereo effects processor with 16 different echo effects, including room and hall reverbs.
- Turn the Program Knob (14) to select the desired effect number (1-16).
- Press the Program Knob (14) to confirm your selection.
- Adjust the FX TO AUX1 knob to send the signal to the effects processor.
- Use the REPEAT knob to control the echo time and feedback of the selected effect.
Figure 4.1: Adjusting the built-in 16 DSP reverb effects.
4.3. Bluetooth Connectivity
The mixer supports wireless Bluetooth connection for audio playback from compatible devices.
- Ensure Bluetooth is enabled on your external device (e.g., smartphone, tablet).
- On the mixer, select the Bluetooth input mode (usually indicated on the digital display).
- Search for "BT-5.0" or similar on your device's Bluetooth settings and pair with the mixer.
- Once paired, you can play audio from your device through the mixer. Use the MP3 Control (13) buttons for playback control.
Figure 4.2: Wireless Bluetooth connection for convenient audio streaming.
5. Applications
The XTUGA KP4 mixer is suitable for a wide range of audio applications, including but not limited to:
- Home Studio Recording
- Live Streaming
- Karaoke
- DJing
- Small Stage Performances
- Webcasting
- Church and Party Events
Figure 5.1: The XTUGA KP4 is suitable for various stage performances, outdoor events, and studio applications.
6. Maintenance
- Cleaning: Use a soft, dry cloth to clean the surface of the mixer. Do not use liquid cleaners or abrasive materials.
- Storage: Store the mixer in a cool, dry place away from direct sunlight and extreme temperatures.
- Handling: Avoid dropping or subjecting the mixer to strong impacts.
- Ventilation: Ensure proper ventilation around the mixer to prevent overheating.
- Power Off: Always turn off the mixer and disconnect power when not in use for extended periods.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound output | Power off; cables loose; volume knobs down; incorrect input/output selection. | Check power connection and switch; ensure all cables are securely connected; turn up channel and main volume knobs; verify correct input source and output connections. |
| Distorted sound | Input gain too high; output volume too high; faulty cable. | Reduce input Gain Knob (4); lower main output volume; try a different cable. |
| Microphone not working (condenser mic) | +48V phantom power not activated. | Ensure +48V Phantom Switch (2) is ON for the respective channel. |
| Bluetooth connection issues | Device not in pairing mode; too far from mixer; interference. | Ensure mixer is in Bluetooth mode and discoverable; move device closer; minimize other wireless devices. |
| No effects applied | Effect not selected; FX send level too low. | Select an effect using the Program Knob (14) and push to confirm; increase the FX TO AUX1 knob. |
8. Specifications
| Feature | Detail |
|---|---|
| Model | KP4 |
| Number of Channels | 4 |
| DSP Effects | 16-bit, 16 types (Room, Hall, etc.) |
| Phantom Power | +48V (Channels 1 & 2) |
| Connectivity | USB Audio Interface, Bluetooth (BT-5.0) |
| Inputs | 2 x XLR (Mic), 2 x 1/4" TRS (Line), 2 x RCA (CD/Tape) |
| Outputs | 2 x XLR (Main), 2 x 1/4" TRS (Main), 1 x 1/4" TRS (Headphone/Monitor) |
| Item Weight | 4.11 pounds (1.87 Kilograms) |
| Package Dimensions | 14.45 x 12.32 x 4.17 inches |
| Power Source | Corded Electric |
9. What's in the Box
Upon opening your XTUGA KP4 Audio Mixer package, you should find the following items:
- XTUGA KP4 4 Channel Audio Mixer
- Power Adapter
- User Manual (this document)
Figure 9.1: Contents included with the XTUGA KP4 Audio Mixer.
10. Warranty and Support
XTUGA is committed to providing high-quality products and excellent customer service. Your XTUGA KP4 Audio Mixer comes with dedicated service and technology guaranteed. For any technical assistance, warranty claims, or product inquiries, please refer to the contact information provided with your purchase or visit the official XTUGA website.
