Weiss DAC202 FireWire DAC with Pre-Amp & Headphone Amplifier

  • For a decent sonic quality when playing music from a computer, the D/A Converter is absolutely essential. This is where the DAC202 comes in. With Firewire, Thunderbolt and USB connectivity it can talk to all computers. The non-compromise DAC for computer playback as well as for stand-alone applications.

    The DAC202 is a reference quality stereo Firewire and USB (optional) D/A Converter with infrared remote control. It supports all standard sampling frequencies including DSD64 (with the USB/DSD Version). A high quality headphone amplifier is built in. The output levels can be set in coarse steps in the analog domain and in addition in the digital domain with fine resolution. Thus the DAC202 acts as a pre-amplifier as well and can directly drive a power amplifier. The ideal device for a minimalistic computer playback system.

  • Power

    • Mains voltage: 100…120 V or 200…240 V

    • Fuse rating: 500 mA slow blow at 100…120 V, 250 mA slow blow at 200…240 V

    • Power consumption: 15 VA max.

    • Power consumption in standby: 1 VA max.

    Size

    • Depth: 30 cm  
    • Width: 18,8 cm
    • Height: 6,6 cm
    • Height with feet: 7,2 cm

    Size Remote

    • Depth: 2,1 cm  
    • Width: 4,5 cm
    • Height: 16,6 cm

    Available Color 
    Silver, Black

    Digital Inputs

    • (1) XLR connector
    • (1) RCA connector
    • (1) TOSLINK connector (optical)
    • (2) Firewire connectors
    • All inputs accept professional or consumer standard , i.e. accept AES/EBU or S/PDIF signals
• Sampling frequencies: 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz or 192 kHz on any of the inputs, except TOSLINK input: 96 kHz maximum
    • The dual wire mode can be activated for sampling frequencies of 176.4 kHz or 192 kHz exclusively
    • 
Maximum input word-length: 24 Bits

    Digital Outputs

    • (1) XLR connector
    • (1) RCA connector
    • (2) Firewire connectors
    • Professional channel status data on the XLR and RCA outputs
    • The dual wire mode can be activated for sampling frequencies of 176.4 kHz or 192 kHz exclusively

    Analog Outputs

    • (2) XLR connectors (hot on pin 2), DC coupled, short circuit proof output circuitry, output impedance 44 Ω
    • (2) RCA connectors, DC coupled, short circuit proof output circuitry, output impedance 22 Ω

     

    The output level is selectable via the LCD menu; four settings are provided as shown below:

    XLR Output:

    • 8.15 Vrms +20.44 dBu with a 0 dBFS sine wave input
    • 
4.15 Vrms +14.57 dBu with a 0 dBFS sine wave input

    • 2.12 Vrms +7.74 dBu with a 0 dBFS sine wave input

    • 1.06 Vrms +2.72 dBu with a 0 dBFS sine wave input

    These levels are achieved with a 0.0 dB setting for the level control on the LCD screen.

    Suggested subsequent amplifier input impedances:


    • 8.15 Vrms setting: 500 Ω or higher

    • 4.15 Vrms setting: 300 Ω or higher

    • 2.12 Vrms setting: 150 Ω or higher

    • 1.06 Vrms setting: 70 Ω or higher


    RCA Output:

    • 4.08 Vrms +14.42 dBu with a 0 dBFS sine wave input
    • 
2.08 Vrms +8.55 dBu with a 0 dBFS sine wave input

    • 1.06 Vrms +1.72 dBu with a 0 dBFS sine wave input

    • 0.53 Vrms −3.30 dBu with a 0 dBFS sine wave input

    These levels are achieved with a 0.0 dB setting for the level control on the LCD screen.

    Suggested subsequent amplifier input impedances:


    • 4.08 Vrms setting: 250 Ω or higher

    • 2.08 Vrms setting: 150 Ω or higher
    • 1.06 Vrms setting: 75 Ω or higher

    • 0.53 Vrms setting: 35 Ω or higher

    Headphone Output:
    (1) stereo 1/4-inch jack connector, DC coupled, short circuit proof output circuitry. The output level is selectable via the LCD menu; four level settings are provided as shown below:

    • 5.2 Vrms +16.53 dBu

    • 2.7 Vrms +10.84 dBu

    • 0.9 Vrms +1.30 dBu

    • 0.2 Vrms −11.77 dBu

    These levels are achieved with a 0.0 dB setting for the level control on the LCD screen.

    Suggested headphone impedances:

    • 5.2 Vrms setting: 100 Ω or higher with a 0 dBFS sine wave input

    • 2.7 Vrms setting: 50 Ω or higher with a 0 dBFS sine wave input

    • 0.9 Vrms setting: 16 Ω or higher with a 0 dBFS sine wave input

    • 0.2 Vrms setting: 4 Ω or higher with a 0 dBFS sine wave input

    Synchronization

    • 
Via the input signal
    • Via the internal oscillator
    • Via a word-clock signal (TTL level/75 Ω) on the BNC input
    • Sampling frequencies supported: 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, 192 kHz
    • Word-clock output (TTL level/75 Ω) on BNC for synchronization of other equipment

    
D/A Converter chip


    • Over-sampling multi-bit sigma-delta converter
    • Two converters per audio channel

    Measurements Main Output

    The measurements below have been taken at the following conditions (unless noted otherwise): 1 kHz measurement frequency, maximum selectable output level, 192 kHz sampling frequency (Fs), 22 kHz measurement bandwidth, unweighted, 0 dBr equals the output level at 0 dBFS input.

    Frequency Response:

    • 
Fs = 44.1 kHz, Filter A, 0 Hz…20 kHz: within ±0.25 dB
    • 
Fs = 44.1 kHz, Filter B, 0 Hz…20 kHz: within ±1.3 dB

    • Fs = 88.2 kHz, Filter A, 0 Hz…20 kHz: within ±0.25 dB

    • Fs = 88.2 kHz, Filter A, 0 Hz…40 kHz: within ±0.8 dB
    • 
Fs = 88.2 kHz, Filter B, 0 Hz…20 kHz: within ±0.25 dB

    • Fs = 88.2 kHz, Filter B, 0 Hz…40 kHz: within ±1.5 dB
    • 
Fs = 176.4 kHz, Filter A, 0 Hz…20 kHz: within ±0.25 dB

    • Fs = 176.4 kHz, Filter A, 0 Hz…40 kHz: within ±0.8 dB

    • Fs = 176.4 kHz, Filter A, 0 Hz…80 kHz: within ±2.5 dB

    • Fs = 176.4 kHz, Filter B, 0 Hz…20 kHz: within ±0.25 dB

    • Fs = 176.4 kHz, Filter B, 0 Hz…40 kHz: within ±0.8 dB

    • Fs = 176.4 kHz, Filter B, 0 Hz…80 kHz: within ±3.5 dB

    Total Harmonic Distortion plus Noise (THD+N):

    • 116 dBr (0.00016 %) at −3 dBFS input level

    • 125 dBr (0.000056 %) at −40 dBFS input level

    • 125 dBr (0.000056 %) at −70 dBFS input level

    Linearity: 
At 0 dBFS to −120 dBFS input level: less than ±0.4 dB deviation from ideal

    Spurious components (including harmonics):

    • 
At 0 dBFS input level, maximum output level, 1 kHz, all components at less than −120 dB

    • At 0 dBFS input level, maximum output level, 4 kHz, all components at less than −115 dB

    Crosstalk: 
Better than 120 dB, 20 Hz…20 kHz

    Interchannel Phase Response:

    • 
±0.05° 20 Hz…20 kHz
    • ±0.30° 20 Hz…80 kHz

    Measurements Headphone Output

    The measurements below have been taken at the following conditions (unless noted otherwise): 1 kHz measurement frequency, maximum selectable output level, 192 kHz sampling frequency (Fs), 22 kHz measurement bandwidth, unweighted, 0 dBr equals the output level at 0 dBFS input.

    Frequency Response:


    • Fs = 44.1kHz, Filter A, 0 Hz…20 kHz: within ±0.25 dB

    • Fs = 44.1kHz, Filter B, 0 Hz…20 kHz: within ±1.3 dB
    • 
Fs = 88.2kHz, Filter A, 0 Hz…20 kHz: within ±0.25 dB

    • Fs = 88.2kHz, Filter A, 0 Hz…40 kHz: within ±0.8 dB

    • Fs = 88.2kHz, Filter B, 0 Hz…20 kHz: within ±0.25 dB

    • Fs = 88.2kHz, Filter B, 0 Hz…40 kHz: within ±1.9 dB
    • 
Fs = 176.4 kHz, Filter A, 0 Hz…20 kHz: within ±0.25 dB

    • Fs = 176.4 kHz, Filter A, 0 Hz…40 kHz: within ±0.8 dB
    • 
Fs = 176.4 kHz, Filter A, 0 Hz…80 kHz: within ±2.6 dB

    • Fs = 176.4 kHz, Filter B, 0 Hz…20 kHz: within ±0.25 dB

    • Fs = 176.4 kHz, Filter B, 0 Hz…40 kHz: within ±0.8 dB
    • Fs = 176.4 kHz, Filter B, 0 Hz…80 kHz: within ±3.8 dB

    Total Harmonic Distortion plus Noise (THD+N):

    • 
−115 dBr (0.00016 %) at −3 dBFS input level

    • −122 dBr (0.0000795 %) at −40 dBFS input level
    • −122 dBr (0.0000795 %) at −70 dBFS input level

    Linearity:
 At 0 dBFS to −120 dBFS input level: less than ±0.4 dB deviation from ideal

    Spurious Components (including Harmonics):


    • At 0 dBFS input level, maximum output level, 100 kΩ load, 1 kHz, all components at less than −120 dB
    • 
At 0 dBFS input level, maximum output level, 600 Ω load, 1 kHz, all components at less than −120 dB

    • At 0 dBFS input level, maximum output level, 300 Ω load, 1 kHz, all components at less than −120 dB

    • At 0 dBFS input level, maximum output level, 100 kΩ load, 4 kHz, all components at less than −120 dB

    • At 0 dBFS input level, maximum output level, 600 Ω load, 4 kHz, all components at less than −120 dB

    • At 0 dBFS input level, maximum output level, 300 Ω load, 4 kHz, all components at less than −115 dB

    Crosstalk:
 Better than 110 dB, 20 Hz…20 kHz

    Interchannel Phase Response:

    • 
±0.15° 20 Hz…20 kHz
    • ±0.50° 20 Hz…80 kHz

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