The Fubar IV is a superb 24Bit/96kHz DAC with Integrated Headphone amplifier and RCA outputs (analog) to connect to your audio rig. You get HiFi music direct from your PC to connect to your home stereo, or you can use the built-in headphone amplifier to drive your headphone. Sound source can be USB or S/PDIF, coaxial as well as optical.
Technical Specifications
Amplifier Structure : Coupling capacitor less, Push-Pull with Class-B
Linear Output : RCA output 2Vrms, delay time phone out function
Power Structure : Switching power supply, Soft-Star circuit
Gain Control : Low (attenuation 20dB) / High (normal)
Volume Control : Series / shunt mode selectable
Headphone Impedance : 32 ohm to 600 ohm
Circuit Protect : Output short / over current protect
Support Format : 16-bit, 32 / 44.1kHz / 48kHz
USB Chip : CMedia – CM108
Receiver Chip : TI – DIR9001
DAC Chip : TI – PCM1754
LPF OPAmp : TI – OPA2134
Main OPAmp : TI – OPA2604
Servo OPAmp : TI – TL072
Audio Performance Coaxial / Optical input – Line output (1kHz sine wave, 2Vrms output)
Frequency response (40Hz to 15kHz) : 40Hz +0.01dB, 15kHz -0.07dB
Noise level (1kHz, A-Weighted) : -95.4dB
Dynamic range (1kHz, A-Weighted) : 95.1dB
THD% : 0.0034%
Stereo crosstalk : -95.8dB
Audio Performance Coaxial / Optical input – Phone output (1kHz sine wave, 2Vrms output)
Frequency response (40Hz to 15kHz) : 40Hz +0.02dB, 15kHz -0.07dB
Noise level (1kHz, A-Weighted) : -94.0dB
Dynamic range (1kHz, A-Weighted) : 94.0dB
THD% : 0.0032%
Stereo crosstalk : -80.6dB
Audio Performance USB input – Line output (1kHz sine wave, 2Vrms output)
Frequency response (40Hz to 15kHz) : 40Hz +0.02dB, 15kHz -0.08dB
Noise level (1kHz, A-Weighted) : -93.8dB
Dynamic range (1kHz, A-Weighted) : 93.3dB
THD% : 0.0035%
Stereo crosstalk : -93.5dB
Audio Performance USB input – Phone output (1kHz sine wave, 2Vrms output)
Frequency response (40Hz to 15kHz) : 40Hz +0.02dB, 15kHz -0.08dB
Noise level (1kHz, A-Weighted) : -90.4dB
Dynamic range (1kHz, A-Weighted) : 90.4dB
THD% : 0.0038%
Stereo crosstalk : -80.7dB
Connectivity
USB interface (USB 1.1)
Digital Input : 1 of coaxial jack
Line Output : 1 of RCA jack
1 of optical jack
1 of 6.4mm phone jack
System Requirements
Intel® Pentium® 2, Celeron® 800MHz or higher computer system
Microsoft® Windows 2000® (Service Pack 4) or Windows® XP (Service Pack 1)
128MB RAM
Available USB port
Package Contents
Fubar IV
DC24V 0.5A power adapter
RCA wire
USB wire
User manual
Warranty card
Wrench
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