1. Introduction
The Sound Town SWM15-PRO is a versatile wireless microphone karaoke mixer system designed to enhance your audio experience. This system integrates seamlessly with various devices, offering features for karaoke, public speaking, and home entertainment. It includes two wireless microphones and a mixer with multiple input and output options, including HD Audio Return Channel (ARC), optical, and AUX connections.
The SWM15-PRO system provides a user-friendly solution for integrating microphones with your existing sound setup, whether it's a smart TV, media box, soundbar, or home theater system.
2. Safety Information
- Read all instructions thoroughly before operating the device.
- Keep the device away from water or moisture to prevent electric shock.
- Do not attempt to open or repair the unit yourself. Refer all servicing to qualified personnel.
- Use only the specified power adapter to avoid damage to the unit.
- Ensure proper ventilation around the unit to prevent overheating.
- Keep microphones away from speakers to prevent feedback.
3. Package Contents
Verify that all items are present in the package:
- 1 x Sound Town SWM15-PRO Karaoke Mixer
- 2 x Wireless Microphones (requires 2 AA batteries each, not included)
- 1 x Power Adapter
- 1 x AUX Cable (3.5mm to 3.5mm)
- 1 x Mini Toslink to Toslink Cable (for optical adapter)
- 1 x Optical Adapter
4. Product Overview
4.1. SWM15-PRO Mixer

Figure 4.1: Mixer Front Panel. This image displays the front panel of the SWM15-PRO mixer, showing the main Music volume knob, individual volume controls for Microphone A and Microphone B, and knobs for Echo and Tone adjustments.

Figure 4.2: Mixer Rear Panel. This image shows the rear panel of the SWM15-PRO mixer, highlighting the HDMI In, HDMI Out (ARC), Audio In, Audio Out, and DC 5V power input ports.
4.2. Wireless Microphones

Figure 4.3: Wireless Microphones. Two wireless microphones are shown alongside the mixer. Each microphone features a display for frequency and battery status, and a power button.
The system includes two high-quality wireless microphones with up to 16 selectable frequencies, allowing for clear audio transmission and reducing interference. Each microphone operates on 2 AA batteries (not included).
5. Setup Instructions
Follow these steps to connect your SWM15-PRO system:
5.1. General Connection Diagrams

Figure 5.1: Smart TV to Mixer to Amplifier/Speaker. This diagram illustrates connecting a Smart TV to the SWM15-PRO mixer via HDMI ARC, and then connecting the mixer's audio output to an amplifier or speaker system.

Figure 5.2: Media Box to Mixer to TV/Amplifier. This diagram shows how to connect a TV box or Blu-ray player to the SWM15-PRO mixer via HDMI, with the mixer then outputting to an HDTV and an amplifier/speaker system.
5.2. Connecting to a Smart TV with HDMI ARC
- Connect one end of an HDMI cable (not included) to the HDMI ARC port on your Smart TV.
- Connect the other end of the HDMI cable to the HDMI OUT (ARC) port on the SWM15-PRO mixer.
- Connect the mixer's AUDIO OUT port to your soundbar or amplifier's AUX input using the included AUX cable, or use the optical adapter and Mini Toslink to Toslink cable for optical input.
- Plug in the power cord to the mixer.
- On your TV, enable the CEC function (e.g., Anynet+ for Samsung) and set the audio output format to PCM under expert settings.

Figure 5.3: Important TV Settings. This image illustrates the necessary TV settings: enabling CEC (e.g., Anynet+) and setting HDMI Input Audio Format and Digital Output Audio Format to PCM.
Video 5.1: SWM15-PRO Connection Tutorial. This video provides a step-by-step guide on connecting the SWM15-PRO mixer system, including HDMI ARC setup.
5.3. Connecting to AUX or Optical Input Devices

Figure 5.4: Smart TV to Optical Input. This diagram details connecting a Smart TV to the SWM15-PRO mixer and then to an optical input device like a soundbar or receiver.
Video 5.2: Smart TV to SWM15-PRO to AUX Input Tutorial. This video demonstrates the connection process from a Smart TV to the SWM15-PRO mixer and then to an AUX input device.
The SWM15-PRO supports various soundbars and speakers with Optical or AUX input. The Audio Out port can function as either an AUX or optical output.
- For AUX Devices: Connect one end of the included AUX cable to the mixer's AUDIO OUT port and the other end to your speaker's AUX input port.
- For Optical Devices: Connect the included optical adapter to the mixer's AUDIO OUT port, then use the Mini Toslink to Toslink cable to connect to your optical input device. Change the input channel on your optical device to OPTICAL.

Figure 5.5: Various Connection Diagrams. This image provides additional connection examples, including Smart TV to AUX/RCA, Laptop/Media Device to TV, and Smartphone/Tablet to TV via the SWM15-PRO mixer.
6. Operating Instructions
6.1. Powering On/Off
- Ensure all connections are secure.
- Plug the power adapter into the mixer's DC 5V port and then into a power outlet. The power indicator light on the mixer will illuminate.
- To power on the wireless microphones, press and hold the power button on each microphone until its display lights up. The mixer's power indicator light will change from red to blue/purple when the microphones are successfully connected.
6.2. Adjusting Audio Levels
Use the knobs on the mixer's front panel to adjust audio settings:
- MUSIC: Controls the overall music volume.
- W/MIC A & W/MIC B: Adjusts the individual volume levels for wireless microphone A and B.
- ECHO: Controls the echo effect applied to the microphone audio.
- TONE: Adjusts the tonal quality of the microphone audio.
For optimal sound, start with the 'MUSIC' volume knob at a low to mid-level (20%-30%) and adjust the 'W/MIC' volume knobs to a mid-to-max range. Then fine-tune the Echo and Tone to your preference.
7. Maintenance
- Cleaning: Use a soft, dry cloth to clean the mixer and microphones. Do not use liquid cleaners or aerosols.
- Battery Replacement: The wireless microphones require 2 AA batteries each. Replace batteries when the microphone display indicates low power or when audio quality degrades.
- Storage: When not in use for extended periods, store the system in a cool, dry place away from direct sunlight and extreme temperatures.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound from microphones | Microphones not powered on or paired; low microphone battery; mixer volume too low; incorrect input selected on external device. | Ensure microphones are powered on and paired (mixer light blue/purple). Replace batteries. Increase W/MIC A/B volume. Select correct input (e.g., HDMI ARC, AUX, Optical) on your TV/soundbar/receiver. |
| Low microphone volume | External device volume too low; mixer volume settings. | Turn the volume higher on your TV, Sound Bar, or Receiver. On the SWM15-PRO mixer, turn the 'MUSIC' volume knob to a low-to-mid level (20%-30%) and adjust the 'W/MIC' volume knob to max. |
| Audio delay/latency | TV or audio system processing; HDMI signal path. | Ensure your TV's audio format is set to PCM. Check your TV or audio system for any 'Game Mode' or low-latency settings that might reduce processing. |
| Interference or signal drops | Other wireless devices; distance from mixer. | The microphones have 16 selectable frequencies. Try changing the frequency on the microphones if interference occurs. Ensure microphones are within the 100-foot line-of-sight operating range. |
| No video signal via HDMI passthrough | Source device resolution; HDMI cable quality. | Ensure your source device (e.g., Apple TV, laptop) is set to a compatible resolution (e.g., 1080p). Use high-speed HDMI cables. |
9. Specifications
| Feature | Detail |
|---|---|
| Model Number | SWM15-PRO |
| Item Weight | 2.2 pounds |
| Product Dimensions | 13 x 3 x 11 inches |
| Microphone Batteries | 2 AA batteries required (per microphone) |
| Compatible Devices | Amplifier, Home Theater, Speaker, Tablet, Television |
| Connector Type | 3.5 mm Jack, HDMI, Optical |
| Hardware Platform | PC, Tablet |
| Power Source | Battery Powered (microphones), DC 5V (mixer) |
| Special Feature | Wireless Microphones, HD Audio Return Channel (ARC), Bluetooth, Optical/AUX Combo Output |
| Color | Black |
| Recommended Uses | Karaoke |
10. Warranty and Support
For warranty information, technical support, or any inquiries regarding your Sound Town SWM15-PRO Wireless Microphone Karaoke Mixer System, please contact Sound Town customer service directly.
You can also visit the official Sound Town store on Amazon for additional product information and support resources: Sound Town Amazon Store.







