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Fubar IV Plus

Fubar IV Plus

BrandFirestone Audio
FunctionAmplifier, Headphone, Audio Interface (24 Bit / 96 kHz DAC, 192 kHz upsampling)
Produced2010 to 2013
CountryTaiwan
Form FactorDesktop
Signal PathHybrid Analog / Digital Hardware
Dimensions117 x 80 x 50 mm (D x W x H) Housing only without parts 'sticking out' like volume buttons, connector parts, etc.
Weight327 gram
PowerDC24V 0.5A
Amplifier StructureCoupling capacitor less, Push-Pull with Class-B
Linear OutputRCA output 2Vrms, delay time phone out function
Power StructureSwitching power supply, Soft-Star circuit
Gain ControlLow (attenuation 20dB) / High (normal)
Volume ControlSeries / shunt mode selectable
Headphone Impedence32 ohm to 600 ohm
Circuit ProtectOutput short / over current protect
USB Support Format16-bit, 32 / 44.1kHz / 48kHz
UpsamplingUp to 192kHz
Input SelectAuto Select (USB input is highest priority)
UCMedia SB ChipC-Media CM108
RecieverTexas Instruments DIR9001
ASRC ChipTexas Instruments SRC4192
DAC ChipTexas Instruments PCM1793
LPF OPAmpNational Semiconductors LM4562
Main OPAmpTexas Instruments OPA2604
Servo OPAmpTexas Instruments TL072
Connections
  • Headphone · 1/4" Phone Jack (6.35mm) · Socket (Female)
  • Line Out · RCA (Phono, Cinch) · Socket (Female), Stereo
  • USB interface · USB · Socket (Female)
  • Digital In · JIS F05 (Toslink, ADAT Lightpipe) · Socket (Female)
  • Digital In · RCA (Phono, Cinch) · Socket (Female)
Controls
  • Volume · Rotary Pot
  • Power · Toggle Switch · On / Off
  • Gain · Toggle Switch · High / Low
LinksProduct page