Introduction
The ULTIMEA Poseidon D50 is a 5.1 channel soundbar system designed to enhance your home audio experience. It features 320W peak power, adjustable surround speakers, a wireless subwoofer, and app control for a customizable listening environment. This manual provides detailed instructions for setting up, operating, and maintaining your soundbar system.

Image: The ULTIMEA Poseidon D50 system configured for 5.1 surround sound in a typical living room, illustrating optimal speaker placement for immersive audio.
What's in the Box
Carefully unpack all components and ensure you have received the following items:
- Soundbar (1x)
- Subwoofer (1x)
- Surround Speakers (2x)
- Power Adaptor (1x)
- Subwoofer Power Cable (1x)
- Stereo 3.5mm to RCA Audio Cable (1x)
- Stereo RCA to RCA Cable (20 feet) (1x)
- HDMI Cable (1x)
- Digital Optical Cable (1x)
- Wall Mounted Kit (1x)
- Wall Bracket (1x)
- Mounting Screws (Set)
- Remote Control (1x)
- User Manual (1x)

Image: All components and accessories included in the ULTIMEA Poseidon D50 package, with dimensions for the main units.
Product Overview
Components and Dimensions
- Soundbar: 15.7 inches (W) x 3.54 inches (D) x 2.76 inches (H)
- Subwoofer: 6.10 inches (W) x 8.5 inches (D) x 9.6 inches (H)
- Surround Speakers: 5.3 inches (W) x 2.8 inches (D) x 3.5 inches (H)
Connectivity Options
The Poseidon D50 offers multiple connectivity options for versatile use:
- HDMI ARC: For high-quality audio connection with compatible TVs.
- Optical: Digital audio input for TVs and other devices.
- AUX: Analog audio input for devices with a 3.5mm jack.
- Bluetooth: Wireless audio streaming from smartphones, tablets, and other Bluetooth-enabled devices.
Setup
1. Speaker Placement
Optimal placement of the soundbar, subwoofer, and surround speakers is crucial for the best audio experience. The system is recommended for rooms up to 323 sq ft (30 m²).
- Soundbar: Place the soundbar centrally below your TV.
- Subwoofer: Position the wireless subwoofer on the floor, ideally in the front of the room, near the soundbar.
- Surround Speakers: Place the two wired surround speakers behind your listening position, to the left and right. Use the provided 19.6-foot RCA cables for connection. Speaker stands are not included but can be used for optimal height.

Image: Proper placement of the adjustable rear speakers for an immersive surround sound experience.
2. Connecting the System
- Connect the two surround speakers to the soundbar using the provided RCA cables.
- Connect the subwoofer to a power outlet using its power cable. The subwoofer will wirelessly pair with the soundbar automatically.
- Connect the soundbar to your TV using one of the following methods:
- HDMI ARC (Recommended): Connect one end of the HDMI cable to the HDMI ARC port on the soundbar and the other end to the HDMI ARC port on your TV. Ensure your TV's HDMI ARC function is enabled.
- Optical: Connect one end of the optical cable to the OPTICAL OUT port on your TV and the other end to the OPTICAL IN port on the soundbar.
- AUX: Connect the 3.5mm to RCA audio cable from your TV's audio output (or other device) to the AUX IN port on the soundbar.
- Bluetooth: Power on the soundbar. Select Bluetooth input. On your device, search for and connect to "ULTIMEA Poseidon D50".
- Connect the soundbar to a power outlet using the power adaptor.
Operating Instructions
Remote Control Functions
Use the included remote control to manage your soundbar system:
- Power Button: Turns the soundbar on or off.
- Input Selection: Cycle through HDMI ARC, Optical, AUX, and Bluetooth inputs.
- Volume Up/Down: Adjusts the master volume.
- Mute: Mutes or unmutes the sound.
- EQ Modes: Select from optimized sound modes such as Movie, Music, Voice, Sport, Game, and Night.
- Bass/Treble Adjustment: Fine-tune bass and treble levels (if available on remote).
ULTIMEA App Control
Download the ULTIMEA App to your smartphone for advanced control and customization:
- Remote Control Functionality: Control all basic soundbar functions from your phone.
- EQ Customization: Access 121 preset equalizer matrices across four styles (Bass, Pop, Classical, Rock).
- 10-Band Equalizer: Fine-tune audio frequencies with a detailed 10-band equalizer in 'Customize' mode.
- Firmware Updates: Receive Over-The-Air (OTA) firmware updates for improved performance and new features.

Image: The ULTIMEA app interface demonstrating smart control features, including 10-band equalizer settings, 121 preset EQ matrices, and OTA firmware support.
Maintenance
To ensure the longevity and optimal performance of your ULTIMEA Poseidon D50 soundbar system, follow these maintenance guidelines:
- Cleaning: Use a soft, dry cloth to clean the surfaces of the soundbar, subwoofer, and speakers. Do not use liquid cleaners or abrasive materials.
- Ventilation: Ensure proper ventilation around all components to prevent overheating. Do not block any vents.
- Avoid Liquids: Keep the system away from water, moisture, and other liquids.
- Power Off When Not in Use: If the system will not be used for an extended period, unplug it from the power outlet.
Troubleshooting
If you encounter issues with your soundbar system, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound from soundbar | Incorrect input selected; Cables not connected properly; TV audio settings incorrect; Soundbar muted. | Ensure correct input is selected (HDMI ARC, Optical, AUX, Bluetooth). Check all cable connections. Verify TV audio output is set to external speakers or PCM. Unmute the soundbar. |
| No sound from subwoofer/surround speakers | Subwoofer not paired; Surround speakers not connected. | Ensure subwoofer is powered on and within range for wireless pairing. Check RCA cable connections for surround speakers. |
| Remote control not working | Batteries low/dead; Obstruction between remote and soundbar; Remote not pointed correctly. | Replace remote control batteries. Remove any obstructions. Point the remote directly at the soundbar's sensor. |
| Bluetooth pairing issues | Soundbar not in pairing mode; Device already connected to another Bluetooth device; Interference. | Ensure soundbar is in Bluetooth input mode and ready for pairing. Disconnect your device from other Bluetooth devices. Move closer to the soundbar and away from potential interference sources. |
Specifications
Detailed technical specifications for the ULTIMEA Poseidon D50 soundbar system:
| Feature | Specification |
|---|---|
| Brand | ULTIMEA |
| Model Name | Poseidon D50 |
| Model Number | U2500 |
| Speaker Maximum Output Power | 320 Watts |
| Number of Audio Channels | 5.1 |
| Frequency Response | 18 KHz |
| Connectivity Technology | Auxiliary, Bluetooth, HDMI, Optical |
| Audio Output Mode | Surround |
| Mounting Type | Wall Mount |
| Subwoofer Diameter | 5.25 Inches |
| Speaker Size (Soundbar/Surround) | 2.25 Inches |
| Control Method | App, Remote |
| Audio Encoding | PCM 5.1 |
| Power Source | Corded Electric |
| Item Weight | 11.7 Pounds |
| Item Dimensions (D x W x H) | 15.75"D x 3.54"W x 2.76"H (Soundbar) |
Warranty and Support
The ULTIMEA Poseidon D50 soundbar system comes with an extended warranty. For specific warranty terms and conditions, please refer to the warranty card included in your product packaging or visit the official ULTIMEA website.
For technical support, troubleshooting assistance, or any inquiries regarding your product, please contact ULTIMEA customer service through their official support channels. Contact information can typically be found on the ULTIMEA website or in the product documentation.