PRE

The Quloos QA390 is a hi-fi lossless music player, DAC, decoder, and headphone amplifier combined into an all-in-one mobile unit. It is powered by four 3300mAh Panasonic 18650 batteries that makes for a truly mobile hi-fi unit with 8-10 hours of high quality music listening.

• 600 MHz Freescale Processor
• Up to 2TB - 30.000 Songs
• SD Card; USB Drive; USB Flash
• AAC FLAC ISO/DFF/DSF ALAC CUE WAV
• Remote Control

• The new design SC-6LS MK2 deployed advanced vacuum tubes, coupling capacitor, carbon film resistor and a variety of high-class components. Effectively improved performance and audio quality. Collocated with 9084D MK2, creates the evolutionary home audio system concept.
• Constructed linear amplifier circuit with FOUR Electro-Harmonix 12AU7EH Preamp Tubes.
• Advanced rectifying circuit with TWO RCA 22DE4 Rectifiers.
• Deploys Multicap Coupling Capacitors & Takman Carbon Film Resistors.
• Designed for 15dB gain.
• Customized EI-Core Power Transformers.

• ESS DAC ES9038PRO chip,with TOPPING elaborate design and adjustment,the distortion is ＜0. 00010％,DNR ＜126dB,and SNR ＜126dB.
• CSR8675 chipset to support Bluetooth 5.0 and LDAC/AAC/SBC/APTX/APX LL/APX HD protocol. DX7 Pro could achieve 24bit 96KHZ HD transmission
• XMOS XU208 and Thesycon customized driver(Win 7 and above)gives the DX7 Pro superior decoding capability on USB;PCM support up to 32bit 768KHZ and DSD support to DSD512(native).
• USBIN: 44.1 kHz-768kHz/16bit-32bit DSD64-DSD512(Native). DSD64-DSD256(DOP)
• OPT/AES/COAX: 44. 1kHz-192kHz/16bit-24bit, DSD64(DOP) 
• IIS IN: 44.1kHz-768kHz/ 16Bit-32Bit、DSD64-DSD1024

• Distinctive Questyle Design
• Resonance Control
• Current mode amplification
• True DSD
• Serve as A Digital Monitor in Studios
• 3x Clock Asynchronous Transmission
• Pure Class A BIAS Control
• Remote Control included

• NEW ES9038Q2MSABRE32Reference DAC Industry’s highest performance 32-bit mobile audio DAC with unprecedented dynamic range and ultra-low distortion
• Super Low ESR tantal capacitors in power supply
• Includes a high level EarMen shilded female USB-A to USB-C Adaptor
• 3700mA battery with up to 10h of music enjoyment
• Separate DATA and Charging USB type C ports alows you to use it all day long in your system
• Analog volume control for Preamp and Headphone amp
• Double Enjoyment with 2 pairs of headphones simuntanesly
• Analog switch for Direct DAC or PreAmp funcion
• ALL METAL aluminum housing eliminate external noise sources

• All-in-one amp tube Headphone Amplifier, Pre-amp and a DAC 
• Headphone stand
• Suitable  to low/high impendance
• Elegant design, wooden housing

• ES9038Pro Flagship DAC Chipset.
• Four sets of Questyle’s self-developed Current-mode amplifier circuits.
• Supports 32-Bit/768kHz PCM decoding.
• Native DSD512 decoding.
• MQA decoding support.
• Classic Questyle Desktop Design.
• High-quality performance with ultra-low distortion.
• Clean background with High SNR ratings.
• High-resolution Bluetooth with LDAC support(supported formats: SBC/AAC/LDAC).
• Added Analog RCA input.
• Supports 4.4mm+4-Pin XLR BAL headphone output.
• USB Type-C high-priority input.
• USB Type-B input.
• Optical+Coaxial input.
• Pre-AMP output with RCA and XLR output.