Mid Size Discrete R-2R Sign Magnitude DAC / HeadAmp

Our high performance single ended DAC with builtin powerfull Headphones Amplifier, based on the well tested and renoved Soekris R-2R technology. The dac1421 has the same features, performance and quality as the top end dac1541, just without the balanced signal chain.

It have the fantastic clean and natural sound of a 27 bit R-2R sign magnitude DAC, built with over two hundred tiny and very precise thin film resistors. The line output buffer is a high performance zero feedback design built with discrete parts, the buffer also have a high power mode to drive any set of Headphones. The main power supplies are ultra low loise, low impedance and very fast, also built with discrete parts.

The music is delivered over an USB interface in both PCM and DSD formats, or by the SPDIF or Toslink inputs. It is then buffered and reclocked using a precise and ultra low jitter oscillator, with the digital processing done in a programmable FPGA chip, with a set of selectable advanced digital filters and a digital volume control.

Technology that used to be reserved to a few DACs costing the same as a car. But now thanks to smart Danish design and automated manufacturing in Denmark it will be available at a much more reasonable price.

Users Manual: download
Windows vers 7-10, 32 & 64 bit driver: download


We had a dac1421 on tour at SBAF, read the reviews here:

The Absolute Sound have a nice review:

Pricing, qty 1 excluding local taxes:
dac1421: EUR 750 In Stock.

dac1421 front view dac1421 rear view
dac1421 internals dac1421 retail packaging


THD @ -1 dB  <0.008%
THD @ -60 dB <0.03%
Resistor Precision 27 bit, 0.02% Resistors
Clock Jitter RMS 0.3 pS typical
S/N 20 Khz Bandwith >120 dB unweighted
Frequency Range +0.1 -1.0 dB 20hz - 20Khz
USB Input Type B, Isolated, Full/High Speed
USB Input Mode Selectable Audio Class 1.0 or Audio Class 2.0
SPDIF / Toslink Inputs  Up to 24 bit / 192 Khz
USB Input PCM Up to 24 Bit / 384 Ksps
USB Input DSD Up to DoP-128 and DSD-256
Digital volume control -80 dB to +10 dB
Output Line RCA, 2.0V RMS, Zout 50 ohm
Output Headphones 6.3 mm Jack, 6.5V RMS, Zout 2.0 ohm
Power Consumptation 90-265V AC, max 25W
Size 220 x 205 x 40 mm
Weight 1.4 Kg
Warranty 3 Years