Om du hittar något fel i beskrivningar eller om du har synpunkter på pris på enskilda produkter, om du vill ha ett paketpris när du planerar att köpa flera produkter samtidigt etc, så hör gärna av dig till oss via epost på: sales@holmerup.biz


Benchmark DAC3 HGC



28 340 kr

Benchmark DAC3 är en 2-kanals D/A-omvandlare som tar ljudet till nya höjder!

Den bygger på Benchmark's framgångsrika DAC2, men har försetts med ett nytt omvandlar-chip och har fått ännu bättre värden.

De prisbelönta DAC1 och DAC2 har ofta används dom referens när man jämför omvandlare och med DAC3 höjer man ribban ännu mer. Benchmarks omvandlare används dagligen i många av de bästa inspelningsstudiorna, masteringstudios och hos tusentals kräsna audiofiler.

DAC3 ger suveränt bra detaljåtergivning och exakt stereobild. Den innehåller an avancerad filterdesign med högt headroom och asynkront USB-interface. Alla ingångar är helt isolerade från interface-jitter tack vare Benchmarks nya UltraLock3 anti-jitter system.

Intern processering och omvandling är 32-bit, som också ger 3.5dB headroom över 0dBFS. Detta förebygger DSP överbelastning, något som lätt kan inträffa i andra omvandlare.

Fyra balanserade 32-bit D/A-omvandlare summeras för att skapa varje anaolg utsignal. Denna 4:1 summering ger 6dB brusreduktion och gör att DAC3 har industriledande prestanda.

Fjärrkontroll ingår.


AUDIO PERFORMANCE

Fs = 44.1 to 96 kHz, 20 to 20 kHz BW, 1 kHz test tone, 0 dBFS = +24 dBu (unless noted)
SNR – A-Weighted, 0 dBFS = +27 dBu
128 dB
SNR – Unweighted, 0 dBFS = +27 dBu
126 dB
THD+N, 1 kHz at 0 dBFS
-113 dBFS, -113 dB, 0.00022%
THD+N, 1 kHz at -1 dBFS
-114 dBFS, -113 dB, 0.00022%
THD+N, 1 kHz at –3 dBFS
-119 dBFS, -116 dB, 0.00016%
THD+N, 20 to 20 kHz test tone at –3 dBFS
-113 dBFS, -110 dB, 0.00032%
Frequency Response at Fs=192 kHz
+0 dB, -0.015 dB (20 to 20 kHz)
-0.015 dB at 10 Hz
-0.005 dB at 20 kHz
-0.031 dB at 40 kHz
-0.15 dB at 80 kHz
Frequency Response at Fs=48 kHz
+0 dB, -0.015 dB (20 to 20 kHz)
-0.015 dB at 10 Hz
-0.005 dB at 20 kHz
Crosstalk
-116 dB at 20 kHz
-130 dB at 1 kHz
-137 dB at 20 Hz
Maximum Amplitude of Jitter Induced Sidebands (10 kHz 0 dBFS test tone, 12.75 UI sinusoidal jitter at 1 kHz)
< -144 dB
Maximum Amplitude of Spurious Tones with 0 dBFS test signal
< -138 dB
Maximum Amplitude of Idle Tones
< -147 dB
Maximum Amplitude of AC line related Hum & Noise
< -133 dB
Inter-channel Differential Phase (Stereo Pair – any sample rate)
+/- 0.25 degrees at 20 kHz
Inter-channel Differential Phase (Between DAC3 Units Fs<110 kHz) Any sample rate.
+/- 0.25 degrees at 20 kHz
Maximum Lock Time after Fs change
6 ms
Soft Mute Ramp Up/Down Time
9.6 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 kHz

 

GROUP DELAY (LATENCY)

Delay – Digital Input to Analog Output (function of sample rate)
 
 
 
1.36 ms at 44.1 kHz
1.27 ms at 48 kHz
0.90 ms at 88.2 kHz
0.82 ms at 96 kHz
0.51 ms at 176.4 kHz
0.47 ms at 192 kHz

 

DIGITAL AUDIO INPUTS

Number of Digital Inputs (switch selected)
5 (1 USB, 2 Optical, 2 Coaxial)
Number of Channels
2
Input Sample Frequency Range
28 to 210 kHz (Coaxial Inputs)
28 to 96 kHz (Optical Inputs)
44.1, 48, 88.2, 96, 176.4, 192 kHz (USB Input)
Maximum Input Word Length
24 bits
Digital Input Impedance
75 Ohms (Coaxial Inputs)
DC Blocking Capacitors on Digital Inputs
Yes (Coaxial Inputs)
Transient and Over-Voltage Protection on Digital Inputs
Yes (Coaxial Inputs)
Minimum Digital Input Level
250 mVpp (Coaxial Inputs)
Jitter Tolerance
(With no Measurable Change in Performance)
 
>12.75 UI sine, 100 Hz to 3 kHz
>1.5 UI sine at 20 kHz
>1.5 UI sine at 40 kHz
>1.5 UI sine at 80 kHz
>1.5 UI sine at 90 kHz
>0.25 UI sine above 160 kHz
Jitter Attenuation Method
Benchmark UltraLock3™ - all inputs

 

BALANCED ANALOG OUTPUTS

Number of Balanced Analog Outputs
2
Output Connector
Gold-Pin Neutrik™ male XLR
Output Impedance
60 Ohms (Attenuator off)
425 Ohms (Attenuator = 10 dB)
135 Ohms (Attenuator = 20 dB)
Analog Output Clip Point
+30 dBu
Factory Set Bypass Level (at 0 dBFS)
+24 dBu (Attenuator = 0 dB)
Output Level Range (at 0 dBFS) In ‘Variable’ Mode
Off to +27.5 dBu (Attenuator off)
Off to +17.5 dBu (Attenuator = 10 dB)
Off to +7.5 dBu (Attenuator = 20 dB)
Output Level Variation with Sample Rate (44.1 kHz vs. 96 kHz)
< +/- 0.006 dB

 

UNBALANCED ANALOG OUTPUTS

Number of Unbalanced Analog Outputs
4
Output Connector
RCA
Output Impedance
30 Ohms
Analog Output Clip Point
+13.5 dBu (3.7 Vrms)
Factory Set Home Theater Bypass Output Level (at 0 dBFS)
+8.2 dBu (2 Vrms)
Output Level Range (with 0 dBFS digital input)
Off to +11.7 dBu (3 Vrms)
Output Level Variation with Sample Rate
< +/- 0.006 dB

 

HPA2TM HEADPHONE OUTPUTS

Number of Headphone Outputs
2
Output Connectors
¼” TRS with switch on left-hand jack
Output Impedance
< 0.11 Ohms
Output Level Control
Stereo Control on Front Panel
Output Level Range (at 0 dBFS) into 60-Ohm Load
Off to +21.5 dBu (9.2 Vrms)
Output Power1.25 W into 30 Ohms
Maximum Output Current
250 mA
Overload Protection (independent per channel)
Current limited at 300 mA, Thermal
Bandwidth
> 500 kHz, -0.35 dB at 200 kHz
THD+N at 20 mW
-108 dB (0.0004%) into 300 Ohms, -100 dB (0.0010%) into 30 Ohms

 

STATUS DISPLAY

Indicators - Type and Location
16 LED’s on Front Panel
Selection/Status Indication
1 – Dim/Mute
1 - Polarity
6 – Input
2 – Bypass/Calibrated Output
2 – Word length
4 – Sample Rate

 



AC POWER REQUIREMENTS

Nominal Input Operating Voltage Range (VAC RMS)
100 – 240V
Frequency
50-60 Hz
Power
< 0.5 Watts Idle
12 Watts Typical Program
15 Watts Maximum
Fuses
5 x 20 mm (2 required)
0.5 A 250 V Slo-Blo® Type
Min/Max Operating range (VAC RMS)
90 – 260 VAC
47 – 63 Hz

 

DIMENSIONS

Form Factor
½ Rack Wide, 1 RU High
Depth behind front panel
8.5” (216 mm)
Overall depth including connectors but without power cord
9.33” (237 mm)
Width
9.5” (249 mm)
Height
1.725” (44.5 mm)

 

WEIGHT

DAC3 only
3 lb.
DAC3 with remote control, power cord, extra fuses, and manual
4 lb.
Shipping weight
7 lb.

IMPORTANT FEATURES

  • Sample Rate Display
  • Word Length Display
  • 5 Digital Inputs
  • 2 Stereo Analog Inputs (2 RCA)
  • 3 Stereo Analog Outputs (2 RCA, 1 XLR)
  • Digital Pass Through
  • Native DSD Conversion
  • Polarity Switch
  • Asynchronous USB 2.0
  • Driverless Asynchronous USB 1.1
  • Home Theater Bypass
  • Bi-Directional 12 Volt Trigger
  • Power Switch
  • Low Power Consumption
  • ES9028PRO Converter



Alla priser är inklusive moms.
Reservation för felskrivningar och förändringar som ligger utanför vår kontroll.