The Dayton Audio HTA50BT is a hybrid stereo tube amplifier designed to deliver a warm, natural sound quality from its tube preamp stage, combined with the fidelity and efficiency of a solid-state power amplifier. This versatile device offers a wide array of input options, including wireless streaming via Bluetooth 5.0 and digital media playback through its built-in USB DAC. It also functions as a high-fidelity headphone amplifier, capable of driving most headphones with a colossal sound stage and effortless dynamic range. The amplifier is housed in a brushed aluminum casing, providing a clean and modern aesthetic.
Function Description:
The HTA50BT serves as a central audio hub, allowing users to connect various audio sources and output sound to speakers or headphones. Its hybrid design leverages the best of both tube and solid-state technologies: the tubes in the preamp stage contribute to a rich, warm, and natural sound, while the solid-state power amplifier ensures high audio fidelity and efficient power delivery.
Important Technical Specifications:
- Power Output: 25 watts RMS x 2 into a 4-ohm load.
- Minimum Speaker Impedance: 4 ohms.
- Frequency Response: 20-20,000 Hz, ±2 dB.
- Channel Separation: 80 dB.
- Dynamic Range: >83 dB.
- Signal-to-Noise Ratio: >85 dB.
- Preamplifier Tubes: 6K4 x 2, 6UI x 2.
- Headphone Amp Output:
- 30 mW @ 600 ohms
- 20 mW @ 300 ohms
- 15 mW @ 32 ohms
- 10 mW @ 16 ohms
- (maximum @ 1 kHz, <1% THD+N)
- Bluetooth Version: 5.0.
- Input Impedance: 47k ohms (minimum).
- Input Sensitivity: 500 mV.
- Dimensions: 6.3" H x 7.5" W x 9.2" D.
- Weight: 6.6 lbs.
- Protection: Short circuit protection circuitry.
Usage Features:
The HTA50BT offers intuitive controls and multiple connectivity options for a seamless user experience.
Top Panel Controls:
- Source Indicator: Displays the currently selected input source.
- Source Selector: Allows switching between various audio inputs (PC-USB, Bluetooth, Optical, Coaxial, AUX1, AUX2).
- Play/Pause: Controls playback for connected digital media sources.
- Previous Track: Navigates to the previous track for digital media.
- Next Track: Navigates to the next track for digital media.
Front Panel Controls:
- Volume Control: A large knob for adjusting the overall output volume.
Rear Panel Connections:
- Bluetooth Antenna: Must be turned to a vertical position for optimal Bluetooth connectivity.
- PC-USB Input: For streaming digital media from a computer.
- AUX 2 Input: An auxiliary input for external audio devices.
- AUX 1 Input: Another auxiliary input for external audio devices.
- Coaxial Input: A digital coaxial input for audio sources.
- Optical Input: A digital optical input for audio sources.
- Headphone Output: A 1/8" stereo jack for connecting most headphones. When headphones are plugged in, the speaker outputs are disengaged.
- Subwoofer Output: An RCA mono output for connecting an external subwoofer.
- Front Left Speaker Connection: High-quality binding posts, color-coded for easy polarity identification, accepting banana plugs or bare wire up to 14AWG.
- Front Right Speaker Connection: Similar high-quality, color-coded binding posts for the right speaker.
- AC Power Connection: For connecting the amplifier to a power source.
- Input Voltage Selector: A switch allowing the user to select the appropriate input voltage (AC-110V/60Hz or AC-220V/50Hz) based on their region.
Connectivity Highlights:
- Bluetooth 5.0: Provides refined wireless streaming from mobile devices, ensuring a stable and high-quality audio connection.
- USB DAC: Built-in functionality for streaming digital media directly from USB devices, enhancing audio quality.
- Multiple Analog and Digital Inputs: Including AUX (RCA), Coaxial, and Optical inputs, accommodating a wide variety of audio sources from traditional players to modern digital devices.
- Headphone Amplifier: Doubles as a dedicated headphone amplifier, offering a powerful and clear listening experience for headphones.
Maintenance Features:
- User Manual: Provides detailed instructions for setup and operation.
- Input Voltage Selector: Allows the user to adapt the amplifier to different regional power standards, ensuring proper operation and preventing damage.
- Short Circuit Protection: Built-in circuitry protects the amplifier from damage due to short circuits, enhancing its longevity and reliability.
- Ventilation: The unit should be operated in a well-ventilated area with a minimum clearance of 2 inches from ventilation openings to prevent overheating.
- Servicing: To reduce the risk of electric shock, the cover should not be removed. Servicing should be referred to qualified personnel only.
- Earth Grounded Connection: The unit should be connected to an earth-grounded AC electrical socket for safety.
- Environmental Protection: Avoid exposing the unit to rain or moisture to reduce the risk of fire and shock.
Warranty:
The Dayton Audio HTA50BT comes with a 5-Year Limited Warranty. Further details can be found on daytonaudio.com.
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