• Zweikanal-D/A-Wandler, 24 Bit / 44,1-192 kHz
• Optimiertes Plug and Play USB-Interface
• Bittransparente Übertragung bis 24Bit / 96kHz
• Keine Knackser durch Advanced USB Technology
• Völlig unempfindlich gegen Jitter durch UltraLock™
• 116 dB S/N @ 48kHz, A bewertet
• THD+N = 0.00045% bei -3 dBFS, unabhängig von Abtastrate und Messfrequenz
• Eingänge: AES, S/PDIF und optisch (Toslink)
• Wahlschalter für die digitale Eingangsquelle
• Variabler oder kalibrierter Ausgangspegel
• Direktanschluss für aktive Abhörmonitore
• Symm. XLR-Ausgänge mit niedriger Impedanz
• Unsymmetrische niederohmige Cinch-Ausgänge
• Kopfhörerverstärker mit 0,0003% THD an 60 Ohm
• Ausgang abschaltbar für Kopfhörerbetrieb
• Power- und Error-LED auf der Frontplatte
• Internes Netzteil mit streuarmem Ringkern-Trafo
• Frontplatte aus gefrästem Aluminium

Digital Audio Inputs

Number of Digital Inputs 4 (Coaxial, XLR, Optical, USB)

Number of Channels 2

Input Sample Frequency Range 28 to 195 kHz

Maximum Input Word Length 24 bits

Digital Input Impedance on XLR input 110 ?

Digital Input Impedance on Coaxial input (jumper selected)

75 ? or Hi-Z (Bridging)

Transformer Coupled Digital Inputs Yes

DC Blocking Capacitors on Digital Inputs Yes

Transient and Over-CVoltage Protection on Digital Inputs Yes

Minimum Digital Input Level 300 mVpp on XLR, 150 mVpp on Coaxial

Jitter Tolerance (With no Measurable Change in Performance)

> 12.75 UI sine, 100 Hz to 10 kHz

> 3.5 UI since at 20 kHz

> 1.2 UI since at 40 kHz

> 0.4 UI since at 80 kHz

> 0.29 UI since at 90 kHz

> 0.25 UI since above 160 kHz

Jitter Attention Method Benchmark UltraLock™

Balanced Analog Outputs

Number of Balanced Analog Outputs 2

Output Connector Gold-Pin Neutrik® male XLR

Output Impedance 60 ?

Calibration Adjustability 2 dB/ turn

Output Level Range (at 0 dBFS) In ‘Calibrated Mode’

+9 to +29 dBu (Attenuator off)

-1 to +19 dBu (Attenuator = 10 dB)

-11 to +9 dBu (Attenuator = 20 dB)

-21 to -1 dBu (Attenuator = 30 dB)

Output Level Range (at 0 dBFS) In ‘Variable’ Mode

Off to +29 dBu (Attenuator off)

Off to +19 dBu (Attenuator = 10 dB)

Off to +9 dBu (Attenuator = 20 dB)

Off to -1 dBu (Attenuator = 30 dB)

Output Level Variation with Sample Rate (44.1 kHz vs. 96 kHz)

< +/- 0.006 dB

Unbalanced Analog Outputs Number of Unbalanced Analog Outputs 2

Output Connector RCA

Output Impedance 30 ?

Output Level Calibration Controls Shared with Balanced Outputs

Output Level Range (at 0 dBFS) -6 dBu to +13.5 dBu

In ‘Calibrated Mode’

Output Level Range (at 0 dBFS) Off to +11 dBu

In ‘Variable’ Mode Calibration Adjustability 2 dB/ turn

Output Level Variation with Sample Rate < +/- 0.006 dB

(44.1 kHz vs. 96 kHz)

Factory Preset

2vRMS (8.2 dBu)

HPA2™ Headphone Outputs

Number of Headphone Outputs 2

Output Connector 1/4” TRS

Output Impedance 0.01 ?

Output Level Control Stereo Control on Front Panel

Output Level Range (at 0 dBFS) into 60 ? Load

Off to +21 dBu

Audio Performance

SNR - A-Weighted, 0 dBFS = +20 to +29 dBu 116 dB

SNR - Unweighted, 0 dBFS = +20 to +29 dBu 114 dB

SNR - A-Weighted at low gain, 0 dBFS = +9 to +18 dBu 114 dB

THD+N, 1 kHz at 0 dBFS -105 dBFS, -105 dB, 0.00056%

THD+N, 1 kHz at -1 dBFS -107 dBFS, -106 dB, 0.00050%

THD+N, 1 kHz at 3 dBFS -110 dBFS, -107 dB, 0.00045%

THD+N, 20 to 20 kHz test tone at -3 dBFS -110 dBFS, -107 dB, 0.00045%

Frequency Response at Fs=96 kHz

+/- 0.1 dB (20 to 20 kHz) -0.02 dB at 10 Hz

-0.20 dB at 20 kHz

-0.85 dB at 40 kHz

-2.5 dB at 45 kHz

Frequency Response at Fs=48 kHz

+/- 0.1 dB (20 to 20 kHz)

-0.02 dB at 10 Hz

-0.20 dB at 20 kHz

 

Crosstalk

-100 dB at 20 kHz

-125 dB at 1 kHz

-130 dB at 20 Hz

 

Maximum Amplitude of Jitter Induced < -141 dB 

Sidebands (10 kHz 0 dBFS test tone, 12.75 UI sinusoidal jitter at 1 kHz)

Maximum Amplitude of Spurious Tones  < -126 dB

with 0 dBFS test signal Maximum Amplitude of Idle Tones < -128 dB

Maximum Amplitude of AC line related

Hum & Noise < -126 dB

Inter-channel Differential Phase +/- 0.5 degrees at 20 kHz

(Stereo Pair, any sample rate)

Inter-channel Differential Phase +/- 0.5 degrees at 20 kHz

(Between DAC1 USB Units, sample-rate < 110 kHz)

Inter-channel Differential Phase +/- 4.1 degrees at 20 kHz

(Between DAC1 USB Units, sample-rate > 110 kHz)

Maximum Lock Time after sample-rate change 100 ms

Soft Mute Ramp Up/Down Time 10 ms

Mute on Receive Error Yes

Mute on Lock Error Yes

Mute on Idle Channel No

50/15 us De-Emphasis Enable Automatic in Consumer Mode

De-Emphasis Method Digital IIR

De-Emphasis Supported at Fs = 32, 44.1, 48, and 96 kHz

Digital Input to Analog Output (function of sample rate) The delay can

be calculated using the following formula: Delay = 1.01 ms + (48/Fs)

Where Fs = the sample rate in Hz.

2.72 ms at 28 kHz

2.51 ms at 32 kHz

2.10 ms at 44.1 kHz

2.01 ms at 48 kHz

1.55 ms at 88.2 kHz

1.51 ms at 96 kHz

1.28 ms at 176.4 kHz

1.26 ms at 192 kHz

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