Mav-Audio D1 dac: hot-rodded w/OPA627 OpAmp & GE5670W Tube

http://www.mav-audio.com

Audio inputs

• Optical audio input x 1 (Digital)
• Coaxial audio input x 1 (Digital)
• USB connector x 1 (Digital)
• Analog audio input x 1 (Analog)
• Line-in audio input x 1 (Analog)
• Optical connector: TOSLINK 660nm
• Coax connector: RCA, 500mVpp into 75 ohms
• Analog  connector: RCA, 1000k ohms
• Accepted sample rates: 32khz, 44.1Khz, 48Khz, 88.2Khz, 96Khz
• Accepted audio format: linear PCM, 16, 20 or 24 bits per sample

Audio outputs:

• All RCA connectors are gold-plated
• Volume control is provided for all outputs
• Two dedicated linear power regulators for DAC and line-out stages
• Dedicated linear power regulators for Tube stage
• Analog RCA outputs signal-to-noise ratio: >96dB
• Tube pre-out outputs signal-to-noise ration: >90dB
• Analog RCA and Tube pre-out outputs impedance: 5K ohms
• Total harmonic distortion: less than 0.001% (RCA outputs), less than 0.1% (Tube pre-out outputs)
• Maximum output power:   1000mW x 2 (32 ohms), 500mW x 2 (300 ohms), 300mW x 2 (600 ohms)

Headphone outputs:

• Standard 1/4″ jack
• Minimum headphone impedance: 16 ohms
• Maximum headphone impedance: 600 ohms
• Headphone output power: 300mW ~ 1000mW

Power:

• R-core Linear 110/220 manual switch

Physical:

• Dimensions: 10″W x 2.1″H x 6.5″D (260mm x 55mm x 167mm)
• Finish: brushed aluminum in black color