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  • 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.

  • USB 2.0 Hi-Speed Isolator withstands up to 2.5kVRMS Indutrial Version

    Specified isolation working voltage, extended temperature grade, high retention connectors
    This product is an ideal solution to break ground loops, avoid noise coupling and protect ports from power surges and voltage spikes in applications which require high speed USB transfers. The galvanic isolation barrier withstands potential difference up to 2,500VRMS. There is no capacitive coupling

  • USB 3.0 Hi-Speed Isolator withstands up to 5kV RMS Indutrial Version

    Specified isolation working voltage, extended temperature grade, high retention connectors
    This product is an ideal solution to break ground loops, avoid noise coupling and protect ports from power surges and voltage spikes in applications which require high speed USB transfers. The galvanic isolation barrier withstands potential difference up to 5kV RMS. There is no capacitive coupling
  • Taking into account all of the above, we come to the conclusion that the new Fostex HP-A8mk2 is a reasonable evolution of the initially successful product.The cost of the device is $ 1200, it is a worthy competitor of products that are in the same price category. The ability to use as a DAC, an upsampler and an amplifier for headphones make the Fostex HP-A8mk2 a “three in one” device. Modern DAC, support for all audio formats and natural sounding of the new USB-DAC Fostex deserve close attention of music lovers.
  • The HP-A4BL High-Resolution DAC / Balanced Headphone Amplifier from Fostex is a high resolution digital-to-audio converter and balanced headphone amplifier well suited for professional audio engineers, mastering engineers, and audiophiles. The HP-A4BL supports PCM audio up to 24-bit/192 kHz and DSD audio up to 11.2 MHz
  • AUNE X8 Magic DAC

    Price $299.00
    • Hi-Res up to 32bit/768k and DSD512
    • Op-Amps interchangeable
    • Seven Filter-Modes
    • Aune FPGA Technology
    • Variable Preamp Out
    • Hi-Res up to 32bit/768k and DSD512
    • Supports Apple / Android / PC
    • 400mA Battery up to 8 hours
    • Fuly Discrete Amp Circuit
    • No-screw Uni-Body-Design
  • EarStudio ES100 MK2

    Price $99.00
    •  DAC: Asahi Kasei AK 4375a × 2 
    •  Input: Bluetooth A2DP or USB DAC 
    •  USB DAC: USB Audio Class 1.0 (Up to 48 kHz / 16 bit)
    •  Output:  3.5 mm (Unbalanced) /  2.5 mm (Balanced / 4-Pin) 
    •  Output Level:  3.2 Vpp (Unbalanced) /  6.4 Vpp (Blanced) 
    •  Output Impedance: 1 Ω (Unbalanced / Blanced) 
    •  SNR:  109 dB (Unbalanced) /  110 dB (Blanced)
    •  Bluetooth Version: 5.0 
    •  Profile: HFP / HSP / A2DP / AVRCP / LDAC
    •  Corresponding Codec: aptX / aptX HD / AAC / SBC 
    •  Maximum Communication Distance: about 10 m
    •  Battery Capacity: 350 mAh (Lithium Polymer) 
    •  Continuous Playing Time: about 14 hours 
    •  Body Size: (W) 30 × (H) 53 × (W) 15 mm
    •  Body Weight: about 20 g
    • DAC chip: AK4377
    • Inputs: USB-C
    • Outputs (3.5 mm): Standard (0.914 Vrms), High Power (2.26 Vrms)
    • Output Impedance: < 1 Ω
    • THD + N (Standard): -105 dB (0.00056%)
    • THD + N (High Power): -102 dB (0.00079%)
    • Dynamic range (Standard): 118 dB
    • Dynamic range (High Power): 118 dB
    • Sample rates: Up to PCM 32-bit 384 kHz, DSD128 (DoP)
    • Desktop compatibility: Mac OS 10.10 or later, Windows 7 (32/64-bit) or later
    • Mobile compatibility: iOS 10.3.3, iPhone 6 or later, Android 6.0 or later
    • Dimensions: 1.8 x 1.3 x 0.3 in (4.5 x 3.2 x 0.8 cm)
    • Weight: 0.8 oz (21.5 g)
    • Choice of Vacuum Tube and Solid State amplification in 3.5mm headphone output
    • Dual Output Mode: High Impedance High Output Mode (HIGH2) delivers 200mWpc@300Ω (balanced)
    • Outstanding digital audio capability with dual AK4497EQ, PCM decoded up to 32Bit/384kHz, DSD up to DSD256
    • Full MQA decoder to unfold mastering quality recording upto 24bit 384kHz
    • Support 4.4mm balanced and 3.5mm single-ended headphone output
    • Comprehensive digital interface: I2S, USB Audio and S/PDIF coaxial output and can function as USB DAC
    • Massive 128GB internal storage and one external TF card up to 512GB, can further extend through USB OTG storage,
    • Massive 7000mAH battery with QC2.0 quick charging
    • Brass chassis with high temperature baked Teflon coating, 24K gold plated solid brass control dials
    • High-performance Dual DAC setup, featuring dual ES9038Q2M DAC chips.
    • Four Way I/V Conversion.
    • Four Way Discrete Component Class A and B Powerful Amplification.
    • Output Power PO:- 600mW at 32 Ohms load, 137mW at 150 Ohms load, and 69mW at 300 Ohms load.
    • Three Level Line out mode, High, Medium, Low.
    • Output Power LO:- 4.1V @ 10k Ohm load, High.
    •                                    3.2V @ 10k Ohm Load, Medium.
    •                                    2.1V @ 10k load, Low.
    • THD+N: 0.001%.
    • Dynamic Range: 121dB.
    • Signal to Noise Ratio: 121dB.
    • Separation: 106dB.
    • Battery Life of up to 9.5 hours.
  • Topping DX7 Pro

    Price $600.00
    • 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
  • Topping D50s Dac

    Price $250.00
    • Support Highest DSD512(Native) and PCM 32Bit/768kHz
    • Bluetooth 5.0 LDAC transmission
    • THD+N as low as 0.00025%
    • XMOS XU208 and customized drivers
    • Auto on/off& Auto screen close
    • USB/Coaxial/Optical DAC application
    • DAC+Pre-amplifier/ Bluetooth receiver/Tablet and phone DAC application
  • Topping D90 Dac

    Price $700.00
    • Support Hi-res music of DSD512 PCM32bit768kHz
    • Bluetooth 5.0 redefining the Hi-res wireless audio with LDAC
    • AK4499 Flagship DAC, AK4118 receiver, OPA1612+LME49720
    • Various input interfaces-AES/USB/OPT/COAX/IIS/BT
    • Switchable power voltage for global used
    • NX4 DSD frequency response range is 20-100kHz, which is far more than CD quality and Hi-Res Audios requirements.Well deserved to get the Japanese Hi-Res Audio certification.
    • NX4 DSD Headphone Amplifier Decoder Topping NX4 DSD XMOS-XU208 DAC ES9038Q2M Chip Portable Headphone Amplifier Decoder
    • CD sound quality can reach 20-20kHz frequency response range and Hi-Res Audio standard requirements 20-40kHz frequency response range.
    • NX4 DSD provides 28 hours playback time for headphone amp and 7.5 hours playback time for USB DAC + headphone amp. Suitable Headphone Impedance:16-300Ω
    • You can play almost all kinds of Audio source because NX4 DSD is compatible with 32bit/768kHz、DSD256(Dop) and DSD512(native).
    • Gain switch and Bass boost NX5 has a gain switch to meet different needs
    • Lo batt LED Charging progress display 3 colour & High-quality components
    • 30 Hour playback time 2400mAh Lithium Ion battery, Adaptive Charging
    • Suitable headphone impedance: 16–300 ohms
    • Headphone output: 3.5 mm
    • Charging time: < 4 hrs to full charge
    • Dimensions: Approx. 2.4 x 0.5 x 4.3 in (6 x 1.3 x 10.8
    • Suitable headphone impedance: 16–300 ohms
    • New
    • 3000mW Output Power.
    • Equipped With The Professional Headphone Freely.
    • USB,COAX and Optical input interfaces ,be comprehensively equipped with various front-end devices.
    • Bluetooth 5.0 decoding, stable transmission.
    • Using the DAC chip ES9038Q2M from US ESS company.
    • Built-in Time Domain Jitter Eliminator.
    • Delivers a DNR of up to 129 dB
    • THD+N of -120dB.
    • Adopt 5Z3P and ECC82 tubes to process the audio.
    • Make the sound sweet and refined.