Introduction
This manual provides essential information for the safe and efficient operation of your Intex IT-1875 SUF Multimedia Speaker system. Please read these instructions thoroughly before using the product and retain them for future reference.
Safety Information
- Ensure the power supply matches the voltage requirements specified on the speaker unit (AC 220V-240V/50Hz).
- Do not expose the unit to rain, moisture, or direct sunlight.
- Avoid placing the unit near heat sources or in areas with excessive dust or vibration.
- Do not open the speaker casing. Refer all servicing to qualified personnel.
- Keep the unit away from children.
- Unplug the power cord during lightning storms or when unused for long periods.
Package Contents
Verify that all items are present in the package:
- Main Unit: 1N
- Satellite Speaker: 2N
- Remote Control: 1N
- AAA Battery: 2N (for remote control)
- Audio Cable: 1N
- User Manual: 1N
Product Overview
The Intex IT-1875 SUF is a multimedia speaker system designed for home entertainment. It features a main unit (subwoofer) and two satellite speakers, offering surround sound audio output. The system supports various connectivity options including USB and includes an FM radio function. Control is managed via a remote control.

Setup
1. Speaker Placement
Place the main unit (subwoofer) on a stable surface. Position the two satellite speakers to the left and right of your listening area for optimal surround sound experience.
2. Connecting Satellite Speakers
Connect the audio cables from the two satellite speakers to the corresponding output ports on the rear panel of the main unit. Ensure a secure connection.
3. Power Connection
Connect the power cord of the main unit to a standard AC 220V-240V/50Hz power outlet.
4. Connecting Audio Sources
- USB Connectivity: Insert a USB drive into the designated USB port on the main unit. The system will automatically detect and play compatible audio files.
- AUX/Audio Cable: Use the provided audio cable to connect the speaker system to compatible devices such as Desktops, DVDs, or Televisions via their audio output jacks.
Operating Instructions
1. Power On/Off
Press the Power button on the main unit or the remote control to turn the speaker system on or off.
2. Mode Selection
Press the 'Mode' button on the main unit or remote control to switch between available input modes: USB, FM Radio, and AUX (Audio Input).
3. Volume Control
Adjust the master volume using the rotary knob on the main unit or the 'VOL+' and 'VOL-' buttons on the remote control.
4. FM Radio Operation
- Switch to FM mode using the 'Mode' button.
- Press the 'Scan' button (or similar on remote) to automatically scan and save available FM stations.
- Use the 'Previous' and 'Next' buttons to navigate between saved stations.
5. Remote Control Usage
Insert the two AAA batteries into the remote control. Point the remote control towards the main unit's sensor to operate functions such as power, mode, volume, track selection, and FM controls.
Maintenance
- Cleaning: Use a soft, dry cloth to clean the speaker surfaces. Do not use liquid cleaners or abrasive materials.
- Storage: When not in use for extended periods, store the speaker system in a cool, dry place, away from direct sunlight and extreme temperatures.
- Power: Always unplug the power cord from the wall outlet before cleaning or performing any maintenance.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No power | Power cord not connected; Power outlet faulty; Unit switched off. | Ensure power cord is securely connected. Test power outlet with another device. Press the Power button. |
| No sound | Volume too low; Incorrect input mode; Audio cable not connected; Source device issue. | Increase volume. Select correct input mode (USB, AUX). Check audio cable connections. Verify source device is playing audio. |
| FM radio reception is poor | Weak signal; Antenna position. | Adjust the position of the speaker system or its antenna (if external). Perform an auto-scan again. |
| Remote control not working | Batteries depleted or incorrectly inserted; Obstruction between remote and unit. | Replace AAA batteries. Ensure correct polarity. Remove any obstructions. Point remote directly at the unit's sensor. |
Specifications
| Feature | Specification |
|---|---|
| Model | IT-1875 SUF |
| Output Power | 20W + 10W x 2 |
| Impedance (Main Unit) | 40Hz - 200Hz |
| Impedance (Satellite) | 200Hz - 20KHz |
| S/N Ratio | >60dB |
| Separation | >40dB |
| Sensitivity | 500mV rms@1KHz |
| FM Frequency Receiver | 88MHz to 108MHz |
| Power Supply | AC 220V-240V/50Hz |
| Connectivity Technology | USB |
| Audio Output Mode | Surround |
| Mounting Type | Tabletop Mount |
| Speaker Type | Multimedia |
| Product Features | Radio |
| Controller Type | Remote Control |
| Compatible Devices | Desktop, DVD, Television |
| Item Weight | 7.98 Pounds |
Warranty and Support
For warranty information and customer support, please refer to the warranty card included with your product or visit the official Intex website. Keep your purchase receipt as proof of purchase for warranty claims.







