1. Nhanganyaya uye Pamusoroview
The REL Acoustics HT/1205 is a high-performance home theater subwoofer engineered to deliver powerful and dynamic bass. It features a 500W Class D amplifier and a 12-inch (300mm) long-travel driver, designed for exceptional output in dedicated home theater environments. This subwoofer is also compatible with HT-Air Wireless for flexible placement options.
This manual provides essential information for the safe and optimal use of your HT/1205 subwoofer. Please read it thoroughly before setup and operation.
2. Zvigadzirwa zveChigadzirwa
- Amplifier: 500W Kirasi D amplifier for high current and limitless dynamics.
- Mutyairi: 12-inch (300mm) long-travel driver with a glass fiber base cone and a true carbon fiber center for stiffness and explosiveness.
- Dhizaini: Line-grained black composite finish with a high-gloss lacquer top panel, designed to dampen chassis resonances.
- Kubatana: RCA inputs for LFE and low-level signals.
- Wireless kugarisana: HT-Air Wireless compatible (optional) for zero-compression wireless audio transmission.
- Zvinodzora: Intuitive, easy-to-use analog controls with double labeling for clear adjustments from any angle.

Mufananidzo 2.1: Mberi view of the HT/1205 Subwoofer, highlighting the 12-inch driver.

Figure 2.2: Rear panel of the HT/1205 Subwoofer with various controls and input/output options.
Vhidhiyo 2.1: Kuperaview of the REL Acoustics HT/1205 Subwoofer, detailing its design and features.
3. Setup Instructions
3.1 Kuiswa
Optimal placement of the subwoofer is crucial for sound quality. Experiment with different locations in your room. Corner placement often provides the most output, while placement along a wall can offer a more balanced sound. Avoid placing the subwoofer directly in a cabinet or enclosed space, as this can negatively impact performance.
3.2 Wired Kubatana
- Ensure all audio equipment is powered off before making connections.
- For LFE (Low-Frequency Effects) connection, use a single RCA cable from your AV receiver's LFE output to the LFE input on the HT/1205.
- For low-level stereo connection, use two RCA cables from your pre-amplifier or receiver's stereo outputs to the LEFT and RIGHT LOW LEVEL inputs on the HT/1205.
- Connect the power cable to the subwoofer and then to a wall outlet.
3.3 Wireless Connection (HT-Air, optional)
If using the optional HT-Air Wireless system, refer to the HT-Air manual for specific pairing instructions. The HT-Air system allows for flexible placement without long cable runs, maintaining sound quality with zero compression.
4. Operating Instructions
4.1 Simba On/Kudzima
Locate the power switch on the rear panel. Set it to 'ON' to power on the subwoofer. The 'STATUS' indicator will illuminate. The subwoofer also features an 'AUTO' mode for automatic power on/off based on audio signal detection.
4.2 Kugadzirisa Kudzora
- Chikamu: Adjust the phase control (0 or 180 degrees) to ensure the subwoofer's output is in phase with your main speakers. Listen for the most coherent and impactful bass.
- Crossover: The 'CROSSOVER' knob sets the upper frequency limit of the subwoofer. Adjust this to blend seamlessly with your main speakers. Start with a lower setting and gradually increase until the bass sounds integrated, not boomy or disconnected.
- Level: The 'LEVEL' knob controls the overall output volume of the subwoofer. Adjust this to achieve the desired bass intensity without overpowering the main speakers.
Make small adjustments to each control and listen carefully to the results. It may take some time to find the optimal settings for your room and system.
5. Kuchengeta
- Kuchenesa: Shandisa jira rakapfava, rakaoma kuchenesa kabhineti. Dzivisa zvinochenesa zvinogumbura kana zvinonyungudutsa.
- Kuiswa: Ensure adequate ventilation around the subwoofer to prevent overheating. Do not block the rear panel or place it in direct sunlight.
- Kubata: When moving the subwoofer, always lift it carefully from the base. Avoid dropping or subjecting it to strong impacts.
6. Kugadzirisa matambudziko
- Hapana Inzwi: Check power connections, ensure the subwoofer is powered on, and verify audio input cables are securely connected. Confirm the source device is playing audio and the receiver's subwoofer output is enabled.
- Inzwi Rakakanganiswa: Reduce the 'LEVEL' control. Check for loose connections or damaged cables. Ensure the subwoofer is not overdriven.
- Boomy or Uncontrolled Bass: Adjust the 'CROSSOVER' and 'LEVEL' controls. Experiment with subwoofer placement to reduce room modes.
- Lack of Bass Impact: Verify the 'PHASE' setting. Ensure the 'LEVEL' control is adequately set. Check if the LFE or low-level input is correctly configured on your receiver.
If issues persist, consult the REL Acoustics websaiti kana kubata rutsigiro rwevatengi.
7. Zvinotsanangurwa
| Feature | Tsanangudzo |
|---|---|
| Brand | REL Acoustics |
| Model Number | HT1205 |
| Mutauri Mukuru Wekubuda Simba | 500 Watts |
| Frequency Response | 22 Hz |
| Kubatana Technology | RCA |
| Audio Output Mode | Stereo |
| Mounting Type | Tabletop Mount |
| Enclosure Material | Wood |
| Mutauri Rudzi | Subwoofer |
| Zvimwe Zvimiro | Bass Boost, Portable |
| Subwoofer Dhayamita | 12 inches |
| Controller Type | Corded Electric |
| Color | Nhema |
| Inodzivirira Mvura | NHEMA |
| Warranty Type | Limited |
| Kudzora Nzira | Bata |
| Mutauri Mukuru | 12 inches |
| Woofer Diameter | 12 inches |
| Bluetooth Range | 10 Mamita |
| MP3 mutambi | Aihwa |
| Item Dimensions D x W x H | 15"D x 15.7"W x 16"H |
| Item Weight | 38 Pondo |
| Inowirirana Devices | Television, Projector, Laptop |
| Simba Source | AC |
| Model Name | HT/1205 |
| Mutengi Package Type | Not Flat Free Package |
| UPC | 857316005348 |
| Mugadziri | REL Acoustics |
| ASIN | B07DFBQV15 |
| Chiyamuro Voltage | 110 Volts |
| Nhamba yeMasimba Masimba | 1 |
| Nhamba yeAudio Channels | 5.1 |
| Wireless Technology | Bluetooth |
| Subwoofer Connectivity Technology | Wireless |
| Kubatana Protocol | Bluetooth |
| Audio Driver Type | Dynamic Driver |
| Audio Driver Size | 12 inches |
| Nhamba yeMasekete | 1 |
| GTIN | 857316005348 |

Figure 7.1: Dimensions of the HT/1205 Subwoofer.
8. Warranty uye Tsigiro
The REL Acoustics HT/1205 Subwoofer comes with a Limited Warranty. For detailed information regarding warranty coverage, terms, and conditions, please refer to the warranty card included with your product or visit the official REL Acoustics website.
For technical support, service, or any inquiries not covered in this manual, please contact REL Acoustics customer support through their official website or authorized service centers. Ensure you have your product model number (HT1205) and proof of purchase available when seeking support.