ONKYO HTX-11 Digital Surround System

1. Introduction

The ONKYO HTX-11 is a compact digital surround system designed to deliver an immersive audio experience. This system features advanced virtual surround sound technology, allowing you to enjoy authentic 5.1-channel surround sound with just two front speakers and an integrated subwoofer. It incorporates several proprietary Onkyo technologies to ensure high-quality audio reproduction, including OMF speaker diaphragms, AERO ACOUSTIC DRIVE bass reflex technology, and VLSC circuitry for pure sound.

This manual provides essential information for setting up, operating, maintaining, and troubleshooting your HTX-11 system. Please read it thoroughly before use to ensure proper installation and optimal performance.

2. Product Overview

The HTX-11 system combines an amplifier-integrated subwoofer with two satellite-type front speakers. Its design focuses on minimizing internal reflections and noise to produce a rich and natural soundstage.

Figure 2.1: Main unit (amplifier-integrated subwoofer) and satellite speakers of the ONKYO HTX-11 Digital Surround System.

Key Features:

• Virtual 5.1ch Surround Sound: Enjoy an immersive sound field with only two front speakers.
• OMF Speaker Technology: Features large-diameter 16cm OMF (ONKYO Micro Fiber) diaphragms for clear and powerful sound.
• AERO ACOUSTIC DRIVE: Unique slit-shaped bass reflex duct design for high-quality, immersive bass reproduction without muddiness.
• VLSC (Vector Linear Shaping Circuitry): Patented technology in the front 2 channels to eliminate pulse noise and reproduce digital sound sources with pure, warm sound.
• Round Form Design: Front speakers feature a round form to suppress internal cabinet reflections and enhance sound quality.
• Expandability: Equipped with amplifier and speaker terminals for optional center and surround speakers for a full 5.1ch setup.
• Digital Audio Inputs: Three optical digital inputs for connecting various digital sources, including terrestrial digital broadcasts.
• iPod Integration: Compatible with an optional iPod dock (DS-A1(W)) for playback and control via the system's remote.

3. Setup

3.1 Unpacking and Placement

1. Carefully remove all components from the packaging.
2. Place the amplifier-integrated subwoofer on a stable, flat surface, such as a tabletop. Ensure adequate ventilation around the unit.
3. Position the two front satellite speakers to the left and right of your viewing area, facing the listening position. For optimal virtual surround effect, ensure they are equidistant from the listener.

3.2 Connecting Speakers

• Connect the supplied speaker cables from the front satellite speakers to the corresponding speaker terminals on the amplifier-integrated subwoofer. Ensure correct polarity (+ to + and - to -).

3.3 Connecting Audio Sources

• Digital Sources (e.g., DVD player, TV, game console): Use optical digital cables to connect your devices to the OPTICAL IN 1, 2, or 3 terminals on the rear of the subwoofer.
• Analog Sources (e.g., VCR, analog TV, music player): Use RCA pin cables to connect your devices to the LINE IN 1 or LINE IN 2 terminals.
• iPod (Optional): If using the optional iPod dock (DS-A1(W)), connect it to the LINE IN 2 input and the RI terminal using a system cable.

3.4 Power Connection

• Once all audio connections are made, connect the power cord to the AC inlet on the subwoofer and then to a wall outlet.

4. Operating Instructions

4.1 Basic Operation

1. Power On/Off: Press the POWER button on the front panel or the remote control to turn the system on or off.
2. Input Selection: Use the INPUT SELECTOR buttons on the front panel or the remote control to choose the desired audio source (e.g., OPTICAL 1, LINE 2).
3. Volume Adjustment: Use the VOLUME +/- buttons on the front panel or the remote control to adjust the sound level.

4.2 Virtual Surround Sound

The HTX-11 automatically processes incoming audio to create a virtual 5.1ch surround sound field. No special activation is typically required for this feature. The system's Theater-Dimensional DSP technology ensures an enveloping sound experience from your front speakers.

4.3 iPod Control (with optional dock)

If you have connected an optional iPod dock (DS-A1(W)) to the system, you can control basic iPod functions using the HTX-11 remote control. This includes playback, volume adjustment, and track selection. The iPod will also charge while docked.

4.4 Terrestrial Digital Broadcast Audio

Connect your digital TV's optical audio output to one of the HTX-11's optical inputs. This will significantly enhance the clarity of dialogue and music from TV programs. Many sports broadcasts are also transmitted in 5.1ch sound, allowing you to experience the atmosphere of live events through your system. Stereo broadcasts can also be expanded to 5.1ch playback using the "Dolby Pro Logic" mode.

5. Advanced Features

5.1 OMF Speaker Technology

The HTX-11 utilizes Onkyo Micro Fiber (OMF) diaphragms in its speakers. These hybrid diaphragms, based on natural fibers, are designed to be harder, lighter, and have less inherent sound, resulting in accurate and detailed sound reproduction across the frequency range.

5.2 AERO ACOUSTIC DRIVE

This proprietary bass reflex technology employs a unique slit-shaped duct structure. Unlike conventional round ducts that can release internal cabinet noise, AERO ACOUSTIC DRIVE prevents noise generation, ensuring that the deep bass is clean, powerful, and textured, even at low volumes.

5.3 VLSC (Vector Linear Shaping Circuitry)

The HTX-11 incorporates VLSC in its front two channels. This patented circuit completely eliminates pulse noise that can degrade digital audio signals after analog conversion. By generating a new, pure audio signal with the same vector as the original, VLSC ensures that digital sound sources are reproduced with a warm and pure sound quality.

5.4 Speaker Expandability

While the HTX-11 provides an impressive virtual surround experience with its two front speakers, it is designed for future expansion. The amplifier-integrated subwoofer includes additional amplifier and speaker terminals. Onkyo offers optional center and surround speakers, matched in design and tonal quality, allowing you to upgrade to a full physical 5.1-channel system for an even more immersive experience.

6. Maintenance

6.1 Cleaning

• Wipe the exterior surfaces of the unit with a soft, dry cloth.
• For stubborn dirt, slightly dampen the cloth with water or a mild, non-abrasive cleaner. Do not use strong chemicals or abrasive materials.
• Avoid spraying liquids directly onto the unit.

6.2 Environmental Considerations

• Ensure the unit is placed in a well-ventilated area to prevent overheating.
• Avoid direct sunlight, heat sources, and excessive humidity.
• Keep the unit away from strong magnetic fields.

7. Troubleshooting

If you encounter any issues with your HTX-11 system, please refer to the following common problems and solutions:

If the problem persists after trying these solutions, please contact Onkyo customer support or your dealer.

8. Specifications

9. Warranty and Support

For warranty information, please refer to the warranty card included with your product or contact your local Onkyo dealer. Keep your purchase receipt as proof of purchase.

For technical support, product inquiries, or service requests, please visit the official Onkyo website or contact their customer service department. Contact details can typically be found on the Onkyo website or in the product packaging.