Adaigo R2R DAC

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DESCRIPTION

What more can you do after launching one of the best dacs available today? We are aware that our current flagship Pavane is hard to beat but at least one idea was not realized yet. The idea of having a decent volume control to prevent a necessary pre-amplifier could improve performance dramatically. However, we also know that the way of introducing such device in the signal chain can also have a negative effect.

Experiments were made and as result the best sound was coming directly from our Transient™ modules. Even the digital approach did not convince us but still one idea was not tried yet. Especially in case of R2R ladder dacs it is quite easy to change the output voltage of the dac by changing its reference voltage but to realize this, dedicated dac boards were designed to get the best regulation possible.

Like our Pavane, “forward correction” techniques are used to drive both mono dac boards. The result of this process is an extremely high linearity, right down to -140 dB, which gives the Adagio a realistic 24 bit dynamic range. The Adagio is a step forwards as it omits a pre-amplifier. It is musical, honors the Non-oversampling principle and simultaneously incorporating the technological progress that has been made over the years.

award
6moons review:
http://www.6moons.com/audioreviews2/metrum3/1.html

Working principle

Non oversampling dac Forward corrected  4x DAC TWO modules per channel in differential mode.

Power 75 VA via 3 separated toroidal transformers

Mains voltage 110/115V AC 220/230V AC 60/50Hz

Input

1x optical

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2x coaxial

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(1x BNC and 1x RCA).

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AES/EBU and USB

Output

1x optical

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2x coaxial

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(1x BNC and 1x RCA).

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AES/EBU and USB

Frequency response 1Hz – 20 khz -1dB. 44.1 kHz sampling

1Hz – 65 kHz -1dB .192 kHz

Distortion 0.006 % THD
Noise floor -155 dB related to 2 Volt RMS
Output Impedance RCA 100 Ohm
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XLR 320 Ohm -10dB output setting

Sampling rate Optical 44.1 – 96 kHz sampling rate.
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Coax and AES/EBU 44.1 -192 kHz

Dimensions 440 x 320 x 85 mm
Weight 10KG

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