This document describes the Panasonic SC-HTB450 Home Theater Audio System, a device designed to enhance the audio experience for televisions and other media devices. The system comprises a main unit, an active subwoofer, and two front speakers, offering various placement and connection options to suit different home environments.
Function Description
The SC-HTB450 system functions as a home theater audio system, providing amplified sound for connected devices. It supports multiple input sources including TV, BD/DVD players, and auxiliary devices, and features Bluetooth® connectivity for wireless audio streaming from compatible devices. A key feature is its "VIERA Link™ HDAVI Control™" compatibility, enabling linked operations with Panasonic TVs for simplified control of power, volume, and input switching. The system also incorporates sound enhancement technologies such as Dolby Virtual Speaker and 3D surround effects to create an immersive audio experience. Clear-mode dialog effect is available to make speech more prominent, and an auto gain control function helps prevent sudden loud sounds.
Important Technical Specifications
- System Components: Main unit (SU-HTB450), active subwoofer (SB-HWA450), 2 front speakers (SB-HTB350).
- RMS Output Power (10% THD):
- Subwoofer channel: 120 W (100 Hz, 8 Ω)
- Front channels (L, R): 60 W per channel (1 kHz, 6 Ω)
- Total RMS Dolby Digital mode power: 240 W
- FTC Output Power (1.0% THD):
- Subwoofer channel: 40 W (8 Ω, 60 Hz to 120 Hz)
- Front channels (L, R): 25 W (6 Ω, 120 Hz to 20 kHz)
- Total FTC Dolby Digital mode power: 90 W
- Front Speakers:
- Type: 2-way, 2-speaker system (Bass reflex type)
- Impedance: 6 Ω
- Woofer: 6.5 cm (2 1/2") cone type × 1
- Tweeter: 2.5 cm (1") semi-dome type × 1
- Frequency Range: 100 Hz to 30 kHz (–16 dB), 150 Hz to 25 kHz (–10 dB)
- Active Subwoofer:
- Type: 1-way, 1-speaker system (Bass reflex type)
- Woofer: 16 cm (6 1/2") cone type × 1
- Frequency Range: 30 Hz to 180 Hz (–16 dB), 35 Hz to 160 Hz (–10 dB)
- Wireless Module:
- Frequency Range: 5.150 GHz to 5.250 GHz, 5.725 GHz to 5.850 GHz
- Number of channels: 9
- Bluetooth® Section:
- System Specification: V2.1 + EDR
- Wireless Equipment Classification: Class 2 (2.5 mW)
- Supported Profiles: A2DP, AVRCP
- Frequency Band: 2402 MHz to 2480 MHz (Adaptive Frequency Hopping)
- Operating Distance: 10 m (33 ft) Line of Sight
- Power Consumption:
- Main unit: 29 W (Active subwoofer: 21 W)
- Standby condition: Main unit: Approx. 0.1 W (Active subwoofer: Approx. 0.1 W)
- Dimensions (W×H×D):
- Main unit: 310 mm × 44 mm × 195 mm (12 7/32" × 1 23/32" × 7 11/16")
- Active subwoofer: 180 mm × 408 mm × 306 mm (7 3/32" × 16 1/16" × 12 1/16")
- Mass (Weight):
- Main unit: 1.1 kg (2.4 lbs)
- Active subwoofer: 5.2 kg (11.47 lbs)
- Operating Temperature Range: 0 °C to +40 °C (+32 °F to +104 °F)
- Operating Humidity Range: 20 % to 80 % RH (no condensation)
- Audio Format Support: LPCM, Dolby Digital, DTS
- HDMI: Supports "HDAVI Control 5" function, ARC compatible HDMI OUT.
- Optical Digital Input: 2 (TV, AUX2) with sampling frequency up to 96 kHz (LPCM only).
Usage Features
- Flexible Placement: The front speakers can be attached to a wall horizontally or vertically, or placed on a table using supplied stands, support legs with speaker feet, or speaker bases. This adaptability allows for integration into various room layouts.
- Easy Assembly: The manual provides detailed instructions for assembling the speakers and attaching them securely, including safety measures to prevent falls.
- Multiple Connections:
- HDMI (ARC): Simplifies connection to ARC-compatible TVs, allowing audio and video with a single HDMI cable.
- HDMI IN/OUT: Connects to Blu-ray Disc™ players, DVD players, or video game consoles, supporting 3D video pass-through.
- Optical Digital Audio: For devices without HDMI ARC or for optimal audio quality.
- Speaker Cable Connection: Color-coded terminals ensure correct speaker wiring.
- Wireless Subwoofer: The active subwoofer connects wirelessly to the main unit, offering flexible placement without the need for audio cables. A WIRELESS LINK indicator shows connection status.
- Bluetooth® Connectivity: Allows wireless audio streaming from Bluetooth®-enabled devices. Supports pairing up to 6 devices and offers two communication modes: "Emphasis on connectivity" (factory preset) and "Emphasis on audio quality."
- VIERA Link™ HDAVI Control™: Enables synchronized operations with compatible Panasonic TVs, including automatic power on/off, volume control via TV remote, and automatic input switching.
- Sound Modes:
- Dolby Virtual Speaker: Creates a surround sound effect similar to a 5.1ch system.
- 3D Surround Effect: Expands the sound field for greater depth and force, matching 3D images.
- Clear-mode Dialog: Enhances dialog clarity, especially at lower volumes.
- Audio Output Modes: Selectable modes (Multi-channel, Auto, 2ch) determine how Dolby Virtual Speaker and 3D surround effects are applied to different audio sources.
- User Controls: Remote control with dedicated buttons for volume, dialog level, subwoofer level, input selection, and mute. Main unit controls for power, volume, and input selection.
- Automatic Standby: The main unit automatically switches to standby mode after 30 minutes of no signal input or operation to conserve energy.
- Volume Limitation: Automatically lowers the volume to a middle level (50) if the unit was turned off with a volume setting above 50, to prevent sudden loud sounds upon power-on. This feature can be turned off.
- Dual Audio: Supports changing between main and secondary audio (SAP) for digital audio sources, provided the source offers dual audio and is set to "Bitstream" output.
- Auto Gain Control: Reduces output automatically when input exceeds a certain level, preventing sudden loud sounds.
Maintenance Features
- Cleaning: The system should be cleaned with a soft, dry cloth. For heavy dirt, a cloth moistened with water and wrung tightly can be used, followed by a dry cloth. Alcohol, paint thinner, or benzine should not be used.
- Battery Replacement: The remote control uses a button-type battery (CR2025). Instructions are provided for safe replacement, emphasizing proper polarity and keeping batteries out of reach of children.
- Troubleshooting Guide: The manual includes a comprehensive troubleshooting section to address common issues such as no power, remote control malfunction, HDMI connection problems, Bluetooth® pairing issues, and sound quality concerns.
- Factory Reset: The system can be reset to factory preset settings by pressing the standby/on switch on the main unit for more than 4 seconds, which can resolve unexpected operational issues.
- Remote Control Code Change: If other Panasonic devices respond to the system's remote control, the remote control code can be changed to prevent interference.
- Wireless Interference Mitigation: Recommendations are provided to maintain distances from other electronic devices (2.4 GHz and 5 GHz band) to avoid interference with the wireless subwoofer and Bluetooth® connections.
- Power Conservation: Unplugging the AC power supply cords for the main unit and active subwoofer is recommended if the system will not be used for a long period.
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