The TAGA Harmony HTA-600B is a high-fidelity hybrid integrated amplifier designed to deliver a rich and dynamic audio experience. This amplifier combines the best of both worlds – the warm, natural sound of vacuum tubes in the preamp section and the powerful, precise output of solid-state transistors.
Function Description
The HTA-600B serves as the central hub for an audiophile's sound system, integrating preamplification, power amplification, and a variety of input options. It is capable of driving a wide range of speakers and offers a dedicated headphone amplifier for private listening. The inclusion of Bluetooth® connectivity allows for wireless streaming of music from smartphones, tablets, or computers, making it a versatile choice for modern audio setups. A preamplifier output is also provided, enabling connection to an external power amplifier or powered subwoofer and speakers.
Important Technical Specifications
- Vacuum Tubes: 2 x 6H3 Russian vacuum tubes in the preamp section, known for their warm and natural sound characteristics.
- Transistors: 2 x 6H3 Russian vacuum tubes in the preamp section and a pair of TDA7296 transistors in the output stage.
- Power Output / Impedance:
- 2 x 30W @ 8Ω
- 2 x 50W @ 4Ω
- DA Converter: 24bit / 192kHz Cirrus Logic CS4344, ensuring high-quality digital-to-analog conversion.
- Wireless Connectivity: Bluetooth® v4.0 for seamless wireless audio streaming.
- Digital Inputs: Optical.
- Analog Inputs: CD, Line.
- Analog Outputs: RCA Pre-Out.
- Headphone Output:
- Impedance: 32-300Ω
- Output power: 300mW, 300Ω
- Frequency Response: 20Hz - 20kHz (±2dB), covering the full audible spectrum.
- Total Harmonic Distortions: ≤1% (1kHz, 1W), indicating low distortion for clean sound.
- Signal/Noise Ratio: 75dB.
- Bass / Treble Regulation: Provides control over low and high frequencies to tailor the sound to personal preference.
- Features / Accessories: Aluminum remote controller, Bluetooth® Antenna, Removable IEC power cord.
- AC Power / Power Consumption: 220-240V 50/60Hz, 150W.
- Dimensions (H x W x D): 8.5 x 43 x 31 cm.
- Weight: 6 kg / pc.
- Toroidal Transformer: A 150W toroidal transformer provides large amounts of clean power, high voltage stability, and very low AC ripple current, contributing to the amplifier's dynamic and pure energy.
- High-Grade Capacitors: Equipped with 2 x 50V/3300uF high-grade capacitors to ensure stable playback, improving music tone and sound field depth.
- Audiophile-Grade Components: Utilizes audiophile-grade capacitors in the input and output from the tubes, as well as for the tone regulators.
- ALPS Volume Potentiometer: Japanese ALPS volume potentiometer provides minimal noises and channels crosstalk, with excellent operational feel and limits errors between the two channels.
- Oversized Aluminum Heat Sink System: Independent heat sink for each channel helps to disperse internal heat and allows for long-term high power playback with limited distortions.
- Gold-Plated Speaker Terminals: Offer almost lossless audio signal transmission to speakers.
Usage Features
The HTA-600B is designed for ease of use with both front panel controls and a remote controller.
- Front Panel Controls:
- Input Selector Button: For switching between various audio sources (CD, Line, Optical, Bluetooth®).
- Power Switch (ON and OFF).
- Headphone ¼” Jack Output.
- Analog CD / LINE Inputs LED Indicators (Red color).
- Bluetooth® Input LED Indicator (Blue color).
- Loudness Button (ON and OFF).
- Vacuum Tube Window: Allows visibility of the glowing vacuum tubes.
- Remote Controller Sensor.
- Direct Button (ON and OFF): Bypasses tone controls for the purest sound.
- Digital OPTICAL Input LED Indicator (Green color).
- Treble Regulator.
- Bass Regulator.
- Volume Regulator with Volume Change LED Indicator.
- Remote Controller: Provides convenient control over CD Input, Line Input, Bluetooth® Input, Optical Input, Mute, Volume, and Dimmer functions.
- Speaker Cable Hookup: Supports both bare wire connections and banana plugs. It is recommended to use 4-8 ohms impedance speakers. Proper polarity (RED+ and BLACK-) must be observed for optimal sound.
- Connecting Multiple Devices: The amplifier can be connected to various audio sources such as CD players, FM tuners, game consoles, and Blu-ray players via RCA interconnect cables or optical digital cables.
- Headphones Connection: The headphone output is designed to provide excellent sound quality for a wide range of headphones.
- Bluetooth® Connection:
- Easy pairing with Bluetooth®-enabled devices.
- The Bluetooth® input LED indicator will flash during pairing and remain solid when connected.
- The amplifier can store up to 8 paired devices.
- The Bluetooth® connection range is approximately 5 meters.
- Operation Modes:
- Volume Regulator: Controls the overall output volume.
- MUTE: Silences the audio output.
- LOUDNESS: Boosts bass and treble at low listening levels.
- DIRECT: Bypasses tone controls for a more direct and uncolored sound.
- TREBLE/BASS Regulators: Allow fine-tuning of high and low frequencies.
- DIMMER: Adjusts the backlight of the vacuum tube window.
- Break-in Period: A "break-in" period of approximately 10 hours of play is recommended to achieve the optimal sound quality. The optimal level of the "break-in" is reached after approximately 40 to 60 hours of play.
Maintenance Features
- Cleaning: Use a damp, soft cloth for cleaning. Do not use strong or abrasive cleaners.
- Vacuum Tube Replacement: The lifetime of vacuum tubes may vary. Replacement vacuum tubes are not supplied with the product. It is recommended to check the warranty terms or contact a local dealer for replacement.
- Fuse Replacement: In case of a blown fuse, it must be replaced with a user-replaceable fuse of the same amperage and voltage type. Refer to qualified service personnel for replacement.
- Safety Instructions: Adherence to safety instructions is crucial for preventing electric shock and ensuring proper operation. This includes avoiding exposure to rain or moisture, not removing the cover, and ensuring proper ventilation.
- Power Cord: Use the provided IEC power cable.
- Ventilation: Ensure adequate ventilation around the unit to prevent overheating. Do not place the unit near a heat source or in spaces that can restrict ventilation.
- Service: In case of malfunction, refer servicing to qualified service personnel. Do not attempt to service the product yourself.
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