HQ-Flagship MK3-Plus is a high-end DAC from HQ-Audio, specially designed for audiophiles who appreciate natural, authentic, and emotional analog sound. With the perfect combination of Pure DSD technology, I/V circuitry using high-end vacuum tubes, and Duelund capacitors, this product delivers an unparalleled music experience. The high-voltage power supply uses only vacuum tubes, ensuring a clean and stable signal, delivering vibrant and captivating sound quality.
1. Premium, Elegant, and Modern Design
1.1 High-Quality Aluminum Alloy Construction
The HQ-Flagship MK3-Plus is made from high-quality aluminum alloy, providing exceptional durability and maximum noise interference protection. This design ensures that the device operates stably, allowing users to enjoy top-tier sound without external environmental interference.
The optimized heat dissipation structure keeps the device at an ideal temperature, ensuring consistent performance during extended use.
1.2 Convenient Remote Control
The device comes with an elegant remote control, allowing users to easily adjust the volume, modes, and settings without having to touch the device, enhancing the overall user experience.
2. Advanced Sound Technology
2.1 Fully Vacuum Tube High Voltage Power Supply
HQ-Flagship MK3-Plus features:
1 x 6DJ8 tube stabilizer, ensuring the electrical signal is clean and stable.
1 x 6CA4 tube replaces the diode rectifier, providing smooth and stable high-voltage power, ensuring the sound signal is clear and detailed.
This design improves the smoothness of the signal, recreating soft and rich analog sound.
2.2 High-End Vacuum Tube I/V Circuitry
The I/V circuit is equipped with:
2 x 12AU7 tubes, providing smooth and natural sound.
2 x 6DJ8 tubes, helping to reproduce detailed sound and expand the soundstage, bringing depth and vibrant dynamics to the music.
2.3 Duelund High-End Capacitors
Duelund capacitors used in the output stage enhance sound quality, providing rich, detailed, and accurate sound, ensuring high performance and emotional depth.
2.4 Pure DSD Processing Technology
Pure DSD directly processes the sound signal in DSD format without converting to PCM, preserving the original quality of the music and delivering a clear, smooth listening experience.
3. Versatile Connectivity Features
3.1 Flexible Input Ports
Inputs: USB, Optical, Coaxial, AES/EBU, I2S, providing easy connectivity to various music sources.
Outputs: RCA (Single-Ended) and XLR (Balanced), compatible with all high-end audio systems, ensuring clean and detailed sound.
3.2 Built-in Music Server
HQ-Flagship MK3-Plus integrates a music server that allows you to connect via LAN to stream music from hard drives or online music sources.
Manage a large music library of up to 8TB, providing the utmost convenience for music enthusiasts.
4. 5-Inch Display – Modern, Intuitive Interface
The HQ-Flagship MK3-Plus is equipped with a 5-inch display with an intuitive interface that shows information about the volume level, input ports, and connection status. Although the screen is not touch-enabled, its sleek and modern design allows users to easily monitor important information and control the device conveniently.
5-Inch Display Features
Displays key information: The screen shows details about the current volume level and input ports, allowing users to easily track and manage the device.
Intuitive and modern interface: The screen enhances the user experience with a simple, clear design, adding convenience and elegance to the device.
User-friendly operation: Even though the screen is not touch-sensitive, it still enables fast and efficient adjustments via physical control buttons.
5. Technical Specifications
D/A CONVERTER CIRCUIT
1 x Pure DSD DAC
Bandwidth: 20Hz-20kHz -0.2dB typical
Output voltage: 3Vrms unbalanced, 6Vrms balanced
THD < 0,001%
DIGITAL INPUTS
Dig In 1: S/PDIF coaxial (RCA 75 Ohms)
Dig In 2: Toslink Optical
Dig In 3: AES/EBU balanced (XLR 110 Ohms)
Dig In 4: USB AUDIO -Amanero (DSD 512 over PCM)
Dig In 5: i2S ínide
ANALOG OUTPUTS
1 x Analog RCA outputs (LEFT-RIGHT)
1 x XLR balanced analog outputs (LEFT-RIGHT)
TUBE OUTPUTS
I/V: 2 x 12au7, 2x 6DJ8
SUPPLY: 1 X 6DJ8, 1x 6CA4
FRONT PANEL CONTROLS
2 x button Input channel selection (In1 – In5)
1 x Mute button
1 x standby button
Separate Led standby (red)
1 x Remote Control
MUSIC SERVER-Raspberry Pi 4-4G
1 x Raspberry Pi 4
Software: Volumio
Connect: Network , wifi, computer, Ipad, mobile phone, nad, hard drive, music online
POWER
2 Separate power transformers (100 W in use, 2 W in standby)
1 transformer that is always under voltage
1 transformers that are cut off for energy savings when the unit is on standby mode
Nominal AC line voltage : 220 or 230V
Input voltage range : +/- 10%
Fuse 5A
SIZE AND WEIGHT
450 W x 450 D x 120 H (mm). 15 kg
WARRANTY
3 years, parts and labor
6. Benefits of Using HQ-Flagship MK3-Plus
Authentic, captivating analog sound: Thanks to the vacuum tube power supply, I/V tube circuit, and Duelund capacitors.
Premium, high-end design: Durable aluminum alloy, refined in every detail, perfect for any high-end audio system.
Flexible and convenient connectivity: Supports various devices and high-end audio systems.
Maximum convenience: Modern remote control and network music streaming enhance the user experience.
7. Warranty and Support
3-Year Manufacturer Warranty: Ensures superior quality and reliability from HQ-Audio.
Lifetime Technical Support: HQ-Audio’s expert team is always ready to assist you with installation, usage, and maintenance.
Flexible Return Policy: Exchange within 7 days if there is a technical issue due to the manufacturer.
8. Who Should Use HQ-Flagship MK3-Plus?
Professional Audiophiles: Who need a DAC that can reproduce detailed, authentic, and emotional sound.
High-End Music Enthusiasts: Those looking to elevate their music experience to the next level.
Recording Studios: Need precise signal processing for creating vibrant, detailed recordings.
9. Conclusion
HQ-Flagship MK3-Plus is an essential component for any audiophile’s collection. With advanced technologies like Pure DSD, premium vacuum tube power supply, I/V tube circuit, Duelund capacitors, it delivers superior sound that is captivating, authentic, and full of emotion. This DAC is the ideal choice for any high-end audio system.
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