Introduction
Thank you for purchasing the Sony GTK-XB72 High Power Home Audio System. This manual provides essential information for setting up, operating, and maintaining your audio system. The XB72 is designed to deliver powerful sound with Extra Bass and Live Sound modes, complemented by vibrant LED lighting. It offers versatile connectivity options including Bluetooth, NFC, and USB, and supports features like Wireless Party Chain and microphone input for an enhanced audio experience.
What's in the Box
- Sony GTK-XB72 High Power Home Audio System
- AC Cord
- Operating Instructions
- Reference Guide
- Quick Setup Guide
- Card
Product Overview

Figure 1: Sony XB72 High Power Home Audio System showcasing its LED lighting in a social setting.

Figure 2: Dimensions of the Sony XB72 speaker, illustrating its height (25.88 inches), width (17.19 inches), and depth (13.63 inches).
Video 1: Demonstration of the Powerful Line Of Speakers For Party Chain feature, showing multiple Sony speakers connected wirelessly.
Video 2: Review highlighting the Really Powerful Party Speaker With Deep Bass and very loud output.
Video 3: A short clip demonstrating the speaker's loud output and dynamic lighting effects.
Video 4: A brief video showcasing the speaker's light synchronization with music.
Video 5: A detailed review emphasizing the speaker's light show and sound quality.
Setup
Power Connection
- Connect the supplied AC cord to the AC IN port on the rear of the system.
- Plug the AC cord into a standard 110V outlet.
- The system is powered by the standard 110V outlet for continuous operation.
Bluetooth Pairing
- Ensure the system is powered on.
- Activate Bluetooth on your smartphone or tablet.
- Select "GTK-XB72" from the list of available Bluetooth devices to pair.
- You can pair up to three smartphones or tablets simultaneously.
NFC Connection
- Ensure NFC is enabled on your compatible device.
- Touch your NFC-enabled device to the N-Mark on the system for seamless streaming.
Operating Instructions
Basic Controls
- Power Button: Turns the system on or off.
- Volume +/-: Adjusts the overall volume level.
- Play/Pause: Controls media playback.
- Skip Track: Skips to the next or previous track.
Extra Bass and Live Sound Mode
- Press the EXTRA BASS button to activate or deactivate the Extra Bass feature for deeper low-end sound.
- Press the LIVE SOUND button to activate or deactivate the Live Sound mode for a wider soundstage.
Lighting Effects
- The system features line lights, speaker lights, and a flashing strobe.
- Use the dedicated lighting control button (if available) or the Sony | Music Center app to customize lighting patterns and colors.
Wireless Party Chain
- Connect multiple compatible Sony speakers via Bluetooth to create a synchronized audio experience.
- Refer to the Quick Setup Guide for detailed instructions on initiating Wireless Party Chain.
Microphone Input
- Plug a microphone into the integrated microphone input to use the system for karaoke or announcements.
- Adjust microphone volume and echo effects using the controls on the system or via the Fiestable app.
USB Charging
- Use the integrated USB port to charge your smartphone or other small devices.
FM Tuner
- The system includes an FM tuner with a tuning range of 87.5-108 MHz/100 kHz.
- Tune to your favorite FM radio stations using the system controls.
Maintenance
- Keep the system clean by wiping it with a soft, dry cloth.
- Avoid exposing the system to water or moisture.
- Do not open the appliance to reduce the risk of fire or electric shock.
Troubleshooting
- No Power: Ensure the AC cord is securely connected to both the system and a working power outlet.
- No Sound: Check the volume level on both the system and the connected device. Ensure the correct input source (Bluetooth, USB, Aux) is selected.
- Bluetooth Pairing Issues: Make sure the system is in Bluetooth pairing mode and within range of your device. Try restarting both devices.
- Distorted Sound: Reduce the volume level. Check audio source quality.
Specifications
| Feature | Specification |
|---|---|
| Brand | Sony |
| Model | GTK-XB72 |
| Connectivity Technology | Bluetooth, NFC, USB |
| Color | Black |
| Speaker Type | Corded Electric |
| Item Dimensions (L x W x H) | 27.5 x 17.19 x 16.42 inches |
| Power Source | Corded Electric (110V) |
| Compatible Devices | Smartphone, Tablet |
| Supported Audio Format | MP3 |
| Number of Speakers | 2 |
| Audio Output Mode | Stereo |
| Item Weight | 20 Pounds |
| Power Consumption (Standby) | 0.5 W |
| FM Tuning Range | 87.5-108 MHz/100 kHz |
Warranty and Support
This Sony GTK-XB72 High Power Home Audio System comes with a 1-year manufacturer's warranty. For technical support, troubleshooting assistance, or warranty claims, please refer to the contact information provided in your Reference Guide or visit the official Sony support website.







