Introduction
Thank you for purchasing the Coby CSMP90 Super-Slim 2.1 Soundbar with Built-In Subwoofer. This manual provides essential information for the safe and efficient operation of your new audio system. Please read it thoroughly before use and retain it for future reference.
The Coby CSMP90 is designed to enhance your audio experience with a powerful 2.1 channel system, including a built-in subwoofer for full bass support. It features Bluetooth connectivity for wireless audio streaming and offers flexible placement options, including tabletop and wall mounting.
Safety Information
To ensure safe operation and prevent damage, please observe the following precautions:
- Do not expose the unit to rain, moisture, or extreme temperatures.
- Do not block ventilation openings.
- Ensure proper power supply voltage as indicated on the unit.
- Avoid placing the unit near heat sources or in direct sunlight.
- Do not open the casing; refer all servicing to qualified personnel.
- Keep the unit away from strong magnetic fields.
- Use only attachments/accessories specified by the manufacturer.
Package Contents
Verify that all items are present in the package:
- Coby CSMP90 Soundbar
- Remote Control (with 2 AAA batteries)
- Power Adapter
- Audio Cable (e.g., 3.5mm to RCA or RCA to RCA, typical for soundbars)
- Wall Mount Kit (if included)
- User Manual (this document)
Product Overview
Familiarize yourself with the various parts of your soundbar.
Front View

Image: Front view of the Coby CSMP90 Super-Slim Soundbar, showcasing its sleek black design and central Coby branding.
The front panel features the LED display and primary control buttons for easy access. The LED display provides visual feedback on current settings such as volume level, input source, and sound modes.
Rear View / Connections
The rear panel houses all input and power connections. Specific ports may include:
- AUX In: For connecting external audio devices via a 3.5mm or RCA cable.
- Optical In: For digital audio connection from compatible devices (e.g., TV).
- Power Input: For connecting the AC power adapter.
Remote Control
The included remote control allows for convenient operation from a distance. It typically includes buttons for Power, Volume Up/Down, Input Selection, Bluetooth Pairing, and Preset Sound Modes.
Setup
Placement Options

Image: Coby CSMP90 Soundbar wall-mounted beneath a television, demonstrating a typical installation scenario in a living room setting.
The CSMP90 soundbar offers versatile placement options:
- Tabletop Placement: Place the soundbar on a stable, flat surface in front of your television. Ensure it does not obstruct the TV's remote sensor.
- Wall Mounting: The soundbar can be mounted on a wall below your television. Use the provided wall mount kit and follow the instructions carefully. Ensure the wall material can support the weight of the soundbar.
Connecting to Audio Sources
Choose one of the following methods to connect your soundbar to an audio source:
- Analog Connection (AUX):
- Connect one end of the audio cable (e.g., 3.5mm or RCA) to the AUX output of your TV or audio device.
- Connect the other end to the AUX input on the rear of the soundbar.
- Digital Connection (Optical):
- Connect an optical audio cable (not always included) from the Optical Out port of your TV to the Optical In port on the soundbar.
- Ensure your TV's audio output settings are configured for PCM (Pulse Code Modulation) if you experience no sound.
- Bluetooth Wireless Connection:
- Refer to the "Bluetooth Pairing" section under Operating Instructions for detailed steps.
Power Connection
Connect the provided power adapter to the DC IN port on the soundbar, then plug the adapter into a standard AC power outlet.
Operating Instructions
Power On/Off
- Press the POWER button on the soundbar's front panel or the remote control to turn the unit on or off.
Input Selection
- Press the INPUT button on the soundbar or remote control repeatedly to cycle through available input sources (e.g., AUX, Optical, Bluetooth). The selected input will be shown on the LED display.
Volume Control
- Press the VOL+ or VOL- buttons on the soundbar or remote control to adjust the volume level.
Bluetooth Pairing
- Turn on the soundbar and select the Bluetooth input mode. The LED display will indicate "BT" and may flash, indicating it is in pairing mode.
- Enable Bluetooth on your mobile device (smartphone, tablet, etc.) and search for available devices.
- Select "CSMP90" (or similar name) from the list of devices.
- Once paired, the soundbar will indicate a successful connection (e.g., "BT" stops flashing or a confirmation tone). You can now stream audio wirelessly from your device.
Preset Sound Modes
The soundbar features preset sound modes to optimize audio for different content types. Press the MODE button on the remote control to cycle through modes such as Music, Movie, or News. Each mode adjusts equalization for a specific listening experience.
LED Display
The LED display on the front of the soundbar provides visual feedback for:
- Current Input Source (e.g., AUX, OPT, BT)
- Volume Level
- Selected Sound Mode
- Bluetooth Pairing Status
Maintenance
- Cleaning: Use a soft, dry cloth to clean the surface of the soundbar. Do not use liquid cleaners or abrasive materials.
- Storage: If storing the unit for an extended period, disconnect it from power and store it in a cool, dry place.
Troubleshooting
If you encounter issues with your soundbar, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No power | Power cable not connected; Power outlet not active. | Ensure power cable is securely connected. Test the outlet with another device. |
| No sound | Incorrect input selected; Volume too low; Audio cable not connected properly; TV audio output settings incorrect. | Select the correct input source. Increase volume. Check all audio cable connections. For optical connection, ensure TV audio output is set to PCM. |
| Bluetooth pairing fails | Soundbar not in pairing mode; Device too far; Interference. | Ensure soundbar is in Bluetooth pairing mode. Move device closer to soundbar. Turn off other Bluetooth devices. |
| Remote control not working | Batteries depleted; Obstruction between remote and soundbar; Remote sensor blocked. | Replace remote batteries (2 AAA). Remove any obstructions. Ensure remote is pointed at the soundbar's front panel. |
| Interference from other remotes | Infrared signals from other devices (e.g., TV remote) are similar. | Reposition the soundbar or the interfering device. If possible, place the soundbar where its sensor is not directly in line with other remote signals. |
| Sound cuts out intermittently (Auto-silence feature) | The soundbar may have an automatic power-saving feature that mutes or powers off during periods of low or no audio input. | This is a design characteristic. Ensure a continuous audio signal. If persistent, check for firmware updates or contact support. |
Specifications
| Model | CSMP90 |
| Speaker Type | Soundbar, Subwoofer |
| Surround Sound Channel Configuration | 2.1 |
| Output Wattage | 60 Watts |
| Connectivity Technology | Wireless (Bluetooth) |
| Special Features | Bass Boost, LED Display, Built-in Subwoofer |
| Color | Black |
| Item Weight | 6 Pounds (approx. 2.72 kg) |
| Product Dimensions | 33.5 x 5.6 x 15.1 inches (approx. 85.1 x 14.2 x 38.4 cm) |
| Impedance | 8 Ohms |
| Power Source | Corded Electric |
| Batteries Required (Remote) | 2 AAA batteries |
| Mounting Type | Tabletop Mount, Wall Mountable |
Warranty and Support
For warranty information and technical support, please refer to the warranty card included with your product or visit the official Coby website. Keep your purchase receipt as proof of purchase for any warranty claims.
For further assistance, you may contact Coby customer service through their official channels.





