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Quloos

Quloos QH1 fully balanced desktop headphone amplifier separated power supply

Quloos QH1 fully balanced desktop headphone amplifier separated power supply

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QLS QH1 Fully Balanced Preamp & Portable Desktop Headphone Amplifier

Overview

The QLS QH1 is a state-of-the-art fully balanced headphone amplifier designed for both desktop and portable use. With a focus on delivering pristine audio quality, this amplifier is equipped with top-tier components and flexible features to satisfy the most discerning audiophiles.

Key Features

  • Fully Balanced Architecture: The QH1 converts single-ended inputs into balanced outputs, ensuring superior noise reduction, an improved signal-to-noise ratio, and an expanded dynamic range.
  • Powerful Output: Featuring 14 pairs of FZT power transistors, this amplifier can effortlessly drive both high and low impedance headphones with remarkable clarity and precision.
  • Switchable Class A/AB Modes: Choose between the warmth and smoothness of Class A or the dynamic liveliness of Class AB amplification to match your listening preferences.
  • Premium Audio Note Capacitors: Equipped with high-end Audio Note KAISEI capacitors and WIMA MKP10 film capacitors for a refined, rich, and full-bodied sound.
  • MUSES72323 Volume Control: Dual MUSES72323 chips provide precise volume adjustments with minimal distortion and crosstalk.
  • Separate Power Supply Unit: Includes a dedicated 80W linear power supply, delivering clean and stable power to the amplifier. The built-in battery offers 8-16 hours of continuous playback for portable use.
  • Comprehensive Connectivity: The QH1 supports RCA, XLR, 3.5mm single-ended, and 4.4mm balanced inputs, making it highly versatile and compatible with a wide range of audio devices.
  • Three Power Supply Options: Can be powered via the included linear power supply, 12V DC input, or the internal battery, providing flexibility for various usage scenarios.
  • Robust CNC Aluminum Chassis: Offers excellent shielding from electromagnetic interference and physical vibration, ensuring the integrity of the audio signal.
  • Comprehensive Protection Circuitry: Integrated protection circuits guard against over-temperature, overload, and DC issues, ensuring the safety of your headphones.

Included Accessories

  • Dedicated linear power supply unit with 80W toroidal transformer
  • High-quality XLR signal cables
  • Custom silver-plated hybrid power cables
  • Remote control for convenient operation
  • User manual and warranty card

Technical Specifications

  • Output Power: Balanced 9000mW + 9000mW @16Ω, 8000mW + 8000mW @32Ω (with external power supply), 6000mW + 6000mW @32Ω (battery power)
  • THD+N: 0.00011% (AES17, 20kHz, A-weighted)
  • Signal-to-Noise Ratio: 126dB (A-weighted, medium gain, battery power)
  • Dynamic Range: 127dB (A-weighted, medium gain, battery power)
  • Channel Crosstalk: -130dB @1kHz (A-weighted, no load, medium gain, battery power)
  • Gain Levels: Low, Medium, High (up to 12x voltage amplification)
  • Headphone Impedance Support: 8Ω - 600Ω
  • Power Consumption: <35W
  • Dimensions: 200mm x 180mm x 45mm (main unit), 200mm x 180mm x 49mm (external power supply)
  • Weight: 1.9kg (main unit), 3.0kg (external power supply)
  • Battery Life: 8-16 hours (depending on usage and settings)
  • Charging Time: 4-5 hours (fast charging via Type-C), 8-10 hours (standard charging via DC 12V ≥2A)


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