Introduction
This manual provides comprehensive instructions for the setup, operation, maintenance, and troubleshooting of your HumanCentric Desktop Speakers with Tube Preamp and Bluetooth 5.0. Please read this manual thoroughly before using the product to ensure optimal performance and longevity.
Package Contents
Verify that all items listed below are present in your product packaging:
- HumanCentric Desktop Speakers (Left and Right)
- Integrated Tube Preamp
- Custom Speaker Stands (Pair)
- Power Adapter
- Audio Cables (e.g., AUX cable)
Product Overview
The HumanCentric Desktop Speakers are designed to deliver high-quality audio with a unique aesthetic. Key features include:
- Compact Size, Expansive Sound: Features HyperFocus tweeters for clear highs up to 28 kHz and airflow-guiding technology for enhanced bass response.
- Retro Design: Incorporates an integrated tube preamp with exposed vacuum tubes, contributing to both sound quality and visual appeal.
- Multiple Connection Options: Supports Bluetooth 5.0 for wireless connectivity, a RIAA phono port for turntables, and an AUX input for other audio sources.
- Included Desk Stands: Comes with a pair of custom speaker stands engineered for optimal listening angles.
Image: Front and side view of the HumanCentric Desktop Speakers, showcasing the design and exposed vacuum tube.
Image: Diagram highlighting the HyperFocus tweeters for clear highs and airflow-guiding technology for bass response.
Image: Illustration showing the various connectivity options: Bluetooth 5.0, AUX input, and RIAA Phono Port.
Image: The HumanCentric Desktop Speakers shown with their included custom stands, designed for optimal listening angles.
Setup
1. Placement
Position the speakers on a stable, flat surface. Utilize the included custom speaker stands to achieve the optimal listening angle, typically with the tweeters at ear level when seated. Ensure adequate space around the speakers for proper ventilation, especially for the vacuum tubes.
2. Connections
- Speaker Interconnection: Connect the left and right speakers using the provided speaker cable. Ensure correct polarity (positive to positive, negative to negative).
- Audio Source Connection:
- Bluetooth 5.0: For wireless connection, ensure your device's Bluetooth is enabled.
- RIAA Phono Port: Connect your turntable directly to the RIAA phono input using an appropriate cable.
- AUX Input: Use a 3.5mm audio cable to connect your computer, laptop, phone, or other audio device to the AUX input.
- Power Connection: Connect the power adapter to the speaker unit and then plug it into a wall outlet.
Operating Instructions
1. Power On/Off
Locate the power button, typically on the main speaker unit. Press it to turn the speakers on or off. The vacuum tubes will illuminate when powered on.
2. Volume Control
Volume adjustments can be made using the touch buttons located on the top of the right speaker. Alternatively, control the volume directly from your connected audio source.
3. Mode Selection
Use the mode selection touch button on the right speaker to cycle through available input modes: Bluetooth, AUX, and Phono. An indicator light will typically show the active mode.
4. Bluetooth Pairing
- Turn on the speakers and select Bluetooth mode. The Bluetooth indicator light will typically flash, indicating pairing mode.
- On your audio device (phone, computer, etc.), go to Bluetooth settings and search for available devices.
- Select "HumanCentric Speakers" (or similar name) from the list to pair.
- Once paired, the Bluetooth indicator light will become solid.
Maintenance
1. Cleaning
Wipe the speaker surfaces with a soft, dry cloth. Avoid using liquid cleaners or abrasive materials, as they may damage the finish or electronic components. Ensure the speakers are powered off and unplugged before cleaning.
2. Vacuum Tube Care
The exposed vacuum tubes are delicate. Avoid touching them directly when hot. If replacement is necessary, consult the manufacturer's guidelines or a qualified technician. Ensure proper ventilation to prevent overheating, which can shorten tube lifespan.
Troubleshooting
- No Sound:
- Ensure the speakers are powered on and the volume is not at minimum.
- Verify that the correct input mode (Bluetooth, AUX, Phono) is selected.
- Check all audio cables for secure connections.
- Confirm that the audio source is playing and its volume is up.
- Bluetooth Connection Issues:
- Ensure the speakers are in Bluetooth pairing mode.
- Disable and re-enable Bluetooth on your audio device.
- Move your audio device closer to the speakers to reduce interference.
- If connection drops frequently, try unpairing and re-pairing the device.
- Distorted Sound:
- Reduce the volume on both the speakers and the audio source.
- Check audio cables for damage or loose connections.
- Ensure the audio source is not outputting a distorted signal.
Specifications
Image: Detailed specifications for the HumanCentric Desktop Speakers.
| Feature | Detail |
|---|---|
| Power Output | 30W RMS (R/L 15W+15W RMS) |
| Signal to Noise Ratio | ≥80dB |
| Total Harmonic Distortion (THD) | <1% |
| Bass Drivers | 2.25” drivers and 3” passive radiators |
| Treble Drivers | Φ .8" silk dome tweeters |
| Frequency Response | 70Hz - 28kHz |
| Unit Dimensions (W x H x D) | 112 mm x 200 mm x 122 mm (approx. 31D x 26.2W x 18.2H cm) |
| Connectivity | Bluetooth 5.0, RIAA Phono (3.5mm Stereo), AUX (3.5mm Stereo) |
| Bluetooth Range | 7-10M (approx.) |
| Control Method | Touch buttons on speaker, Remote (if included, not specified in product details) |
| Power Source | Corded Electric |
| Color | Black |
| Item Weight | Approx. 2.45 kg (5.41 Pounds) |
Warranty Information
HumanCentric products are designed for reliability and performance. This product is covered by a limited warranty against defects in materials and workmanship. Specific warranty terms and duration may vary by region and purchase date. Please retain your proof of purchase for warranty claims. For detailed warranty information, refer to the documentation included with your product or visit the official HumanCentric website.
Customer Support
If you encounter any issues or have questions not addressed in this manual, please contact HumanCentric customer support. Support contact information can typically be found on the product packaging, the official HumanCentric website, or through your retailer.