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Questyle CMA600i Balanced Headphone Amplifier & USB DAC – Space Grey

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  • Entry-level DAC, headphone amp and pre-amp combination

  • True DSD DAC and Current Mode Amplification technology

  • Separate pre-amp with independent circuit design

  • Support for the highest quality audio file formats

  • Carefully selected high-end components used throughout

Questyle CMA600i Balanced Headphone Amplifier & USB DAC – Space Grey

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Questyle CMA600i

In the pursuit of creating the absolute all-in-one high-fidelity solution Questyle presents CMA600i fully balanced headphone amplifier, true DSD DAC and independent pre-amp combination. With patented current mode amplification, fully balanced circuit design and 'True DSD' the CM600i is the perfect entry-level solution for budget concious audiophiles.

To achieve the best possible sound performance for the headphone amplifier section Questyle uses trickle down technologies from their flagship model CMA800R. This model has impressively low distortion, with up to 950mW output power for low impedance headphones. The CMA600i doesn’t shy away from the heaviest loads either with a 4-pin balanced XLR connection to maximise sound quality.

With 'True DSD' DAC the Questyle CMA600i accepts DSD bit-stream directly from computers bypassing your computer’s audio processing and digital volume control. Questyle CMA600i’s digital filters to provide True DSD making for high-fidelity audio without distortion or unwanted artefacts.

Sound quality matters.

 

Questyle CMA600i

 

Current Mode Amplification
The high quality sound performance of the CMA600i is capable to challenge world class Hi-end headphone amplifiers. Utilising Questyle's patented 'Current Mode Amplification' technology the CMA600i can provide highest fidelity sound with ultra-low distortion and an ultra-wide frequency distribution.

DAC with True DSD
Unlike other DACs that claim DSD support, yet in actuality provide DoP (DSD over PCM), the Questyle Audio CMA600i accepts the DSD bit-stream directly from your computer, bypassing your computer’s audio processing and digital volume control as well as the Questyle Audio CMA600i’s digital filters, to provide True DSD, the way it was meant to be heard.

Separate Pre-Amp
To achieve the best possible sound performance, the Questyle Audio CMA600i is designed with a fully independent pre-amplifier. Many manufacturers when designing an all-in-one model use the headphone amplifier circuit loop to support the pre-amplifier output to reduce costs.

Balanced Output Design
CMA600i is equipped with 4-pin full balanced output and dual 6.35mm standard headphone jacks. When the 4-pin full balanced output is working to drive a headphone, there are 4 groups of pure Class A and Current Mode amplification circuits output double voltage, and bringing quadruple power, so it can easily drive any high impedance headphones.

Comprehensive File Support
The Questyle CMA600i is designed to grow with your music collection. As well as supporting standard digital files via USB, toslink or coaxial SPDIF connection the CMA600i is also fully compliant with files up to DSD256 and PCM 384k/32bit over USB.

Premium Build
Questyle Audio CMA600i’s aluminium chassis is produced by Foxconn using precise CNC tooling machines. The upper cover and bottom chassis '“mutual bit' structural design, provides the Questyle Audio CMA600i with stable heat, excellent control of sympathetic vibration and excellent shielding from RFI/EMI radiation.

 

Questyle CMA600i

 

TECHNICAL SPECIFICATIONS

Connections

  • Analogue Output: Balanced (XLR) and unbalanced (RCA)
  • Input-DAC/Preamp: SPDIF input and output, USB Type B input
  • Input-Headphone Amp: Internal DAC output, or External RCA input, switchable
  • Output-Headphone Amp: Dual 6.35mm standard stereo jacks
  • USB: PCM44.1k/16-32bit and DSD64, DSD128, DSD256 following standard SACD format

Performance

  • Frequency: DC-100kHz (+0, -0.7 dB); DC-200kHz (+0, -1.7dB)
  • Gain: 13.4dB (4.7 times)
  • Max Output Amplitude: XLR: 8Vrms; RCA: 4Vrms
  • Max Output Power: 220mW (8.1Vrms) @300ohm; 950mW (5.5Vrms) @ 32ohm
  • PC OS to Match USB Input: Win XP, Vista, Win7, Win8 and MAC OS
  • Power Consumption: 18W
  • Sensitivity: 1.7Vrms
  • Signal: SPDIF input and output: Standard PCM 44.1k-192k/16-24bit
  • SNR-DAC/Preamp: RCA: >105dB; XLR: >121dB
  • SNR-Headphone Amp: 113dB
  • USB Supported Kernel Stream: WASAPI, ASIO, KS
  • Voltage: 100-120V or 220-230V Switchable

Physical

  • Dimensions: 330mm x 300mm x 55mm (W-H-L)

 

Questyle CMA600i

 

FEATURES

  • Fully featured DAC, headphone amp and pre-amp combination
  • Support for the highest quality audio file formats
  • Patented True DSD and Current Mode Amplification technology
  • Separate pre-amp with independent circuit design
  • Carefully selected high-end components used throughout
  • Crafted of aviation-grade aluminium on Foxconn CNC machines

 

BrandQuestyle
Product TypeDAC / Headphone Amplifier
ColourSilver
Feature KeywordNo
Recommended UseHi-Fi, Studio
Manufacturer Warranty1 Year
Included AccessoriesNo
Part NumberCMA600I
GTIN6970011520177

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