DAC3 DX keitiklis (DAC)



The conversion system in the DAC3 DX achieves a 4.77 dB signal to noise improvement through the use of 3:1 summing on the main output bus. The ES9028PRO D/A is an 8-channel 32-bit converter. In the DAC3 DX, three channels are summed in the analog domain to form each of the two output channels on the main bus. The remaining two channels provide the aux bus outputs

The 3:1 summing also improves the THD. The non-linearities in individual conversion channels are averaged across the four summed channels and incoherent non-linearities are attenuated by up to 4 dB.


All Benchmark converters are designed for maximum transparency. This transparency is absolutely essential in the studio monitoring chain. DAC3 converters are ideal for critical reference-quality professional systems. In home applications, the DAC2 delivers the sonic signature that was created in the recording studio.

Hear the music exactly as it was heard in the studio.


Benchmark’s DAC1 and DAC2 series converters have been the reference to which other converters have been compared. It is rare to find a converter review that does not draw comparisons to the DAC1 or DAC2. The DAC1 and DAC2 have been some of the best-selling 2-channel reference-quality converters and are in daily use at many of the finest recording studios and mastering rooms. Benchmark converters are also enjoyed by thousands of audiophiles. Benchmark has raised the bar … the DAC3 defines a new reference.

Audio performance

SNR – A-Weighted, 0 dBFS = +28 dBu
127 dB

SNR – Unweighted, 0 dBFS = +28 dBu
125 dB

THD+N, 1 kHz at 0 dBFS
-111 dBFS, -111 dB, 0.00028%

THD+N, 1 kHz at –3 dBFS
116 dBFS, -113 dB, 0.00022%

Frequency Response at Fs=192 kHz
+/- 0.005 dB (20 to 20 kHz); -0.013 dB at 10 Hz; +0.005 dB at 20 kHz; +0.006 dB at 40 kHz; -0.002 dB at 80 kHz

-120 dB at 20 Hz; -120 dB at 1 kHz; -106 dB at 20 kHz

Digital audio inputs

Number of Digital Inputs (switch selected)
6 (1 USB, 2 Optical, 1 XLR, 2 Coaxial)

Number of Channels

Input Sample Frequency Range
28 to 210 kHz (Coaxial and XLR); 28 to 96 kHz (Optical); 44.1, 48, 88.2, 96, 176.4, 192 kHz (USB)

Maximum Input Word Length
24 bits

Digital Input Impedance
75 Ohms Coaxial, 110 Ohms XLR

Transformer Coupling on Digital Inputs
Yes (XLR Input)

Minimum Digital Input Level
250 mVpp (Coaxial and XLR Inputs)

Balanced analog outputs

Number of Balanced Analog Outputs

Output Impedance
60 Ohms (Attenuator off); 425 Ohms (Attenuator = 10 dB); 135 Ohms (Attenuator = 20 dB)

Analog Output Clip Point
+29 dBu

Output Level Variation with Sample Rate (44.1 kHz vs. 96 kHz)
< +/- 0.006 dB

Unbalanced analog outputs

Number of Unbalanced Analog Outputs

Output Connector

Output Impedance
30 Ohms

Analog Output Clip Point
+13.5 dBu

Output Level Variation with Sample Rate (44.1 kHz vs. 96 kHz)
< +/- 0.006 dB

HPA2TM Headphones outputs

Number of Headphone Outputs

Output Connectors
¼” TRS with switch on left-hand jack

Output Impedance
< 0.11 Ohms

Maximum Output Current
250 mA

> 500 kHz

-100 dB, 0.001% into 30 Ohms at 50 mW; 1.26W maximum into 30 Ohms

AC power requirements

Nominal Input Operating Voltage Range (VAC RMS)
100 – 240V

50-60 Hz

< 0.5 Watts Idle; 12 Watts Typical Program; 15 Watts Maximum

Min/Max Operating range (VAC RMS)
90 – 260; 47 – 63Hz

Dimensions & Weight

Dimensions (WxHxD)
9.5” (249 mm) x 1.725” (44.5 mm) x 9.33” (237 mm)

DAC3 Weight
3 lb (1.36kg)

DAC3 DX keitiklis (DAC)