Argo Duck
Formerly known as "AiDee"
- Joined
- Nov 6, 2007
- Posts
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New equipment from Jan Meier is always an occasion. In the last few hours Jan announced technical details of his new DAC in the Meier Audio Stagedac thread. More information at his website.
Some notable differences from the Stagedac., e.g. looks like careful attention to jitter control; USB up to 192kHz/24bit; a third preamp level up to 6Vrms (useful for those with harder-to-drive amps); AD797 opamps - used in the Classic and IIRC Concerto amplifers - replace the LM6171; and the digital filter modes are no longer exposed.
Technical details
2 coaxial S/PDIF inputs (Cinch)
1 optical S/PDIF input (Toslink)
1 USB-input port (24bit/192kHz)
All inputs electrically isolated using pulse transformers.
1 pair of outputs with fixed output level.
Output level 2.2 Vrms
1 pair of volume-controlled preamplifier outputs.
Output level: 6.0 Vrms / High gain
2,4 Vrms / Medium gain
0.9 Vrms / Low gain
Gold-plated output jacks
Silver plated heavy duty switches
Separate powerlines for the analog circuitry and the digital circuitry
All voltage lines double or three-fold regulated
Wide-range powerinput: 85..265V AC / 85..370V DC
Built-in groundloop breaker
Low impedance audiophile electrolytic buffer capacitors (Nichicon Fine Gold). Buffer capacity > 30.000 uF
Polystyrol and polypropylen (Vishay) capacitors in the signal path
C-MEDIA CM6631 USB-to-S/PDIF receiver (24bit/192kHz)
WOLFSON WM8804 S/PDIF receiver
Three IQD temperature compensated 2.5 ppm crystal oscillators (TCXO's) for minimal jitter.
2 pieces WOLFSON WM8741 D/A converter-chip in dual-mono mode
Sampling frequencies / resolution
32, 44, 48, 88, 96, 192 kHz / 16, 20, 24 bit (S/PDIF, USB)
AD797 opamps biased into class-A
ALPS RK27 potentiometer for volume-control
Extended natural crossfeed filter
3 intensity levels for the crossfeed signal.
Star-grounding
Weight: 1.7 kg
Size: 28.0 x 17.5 x 6.7 cm
Power uptake: 6 Watts
Some notable differences from the Stagedac., e.g. looks like careful attention to jitter control; USB up to 192kHz/24bit; a third preamp level up to 6Vrms (useful for those with harder-to-drive amps); AD797 opamps - used in the Classic and IIRC Concerto amplifers - replace the LM6171; and the digital filter modes are no longer exposed.
Technical details
2 coaxial S/PDIF inputs (Cinch)
1 optical S/PDIF input (Toslink)
1 USB-input port (24bit/192kHz)
All inputs electrically isolated using pulse transformers.
1 pair of outputs with fixed output level.
Output level 2.2 Vrms
1 pair of volume-controlled preamplifier outputs.
Output level: 6.0 Vrms / High gain
2,4 Vrms / Medium gain
0.9 Vrms / Low gain
Gold-plated output jacks
Silver plated heavy duty switches
Separate powerlines for the analog circuitry and the digital circuitry
All voltage lines double or three-fold regulated
Wide-range powerinput: 85..265V AC / 85..370V DC
Built-in groundloop breaker
Low impedance audiophile electrolytic buffer capacitors (Nichicon Fine Gold). Buffer capacity > 30.000 uF
Polystyrol and polypropylen (Vishay) capacitors in the signal path
C-MEDIA CM6631 USB-to-S/PDIF receiver (24bit/192kHz)
WOLFSON WM8804 S/PDIF receiver
Three IQD temperature compensated 2.5 ppm crystal oscillators (TCXO's) for minimal jitter.
2 pieces WOLFSON WM8741 D/A converter-chip in dual-mono mode
Sampling frequencies / resolution
32, 44, 48, 88, 96, 192 kHz / 16, 20, 24 bit (S/PDIF, USB)
AD797 opamps biased into class-A
ALPS RK27 potentiometer for volume-control
Extended natural crossfeed filter
3 intensity levels for the crossfeed signal.
Star-grounding
Weight: 1.7 kg
Size: 28.0 x 17.5 x 6.7 cm
Power uptake: 6 Watts