[SoundNation]

is this a good amp/dac for dt 880 - 250 ohm?
better than fiio e17? if so in what chips department is it better.
 
Features
FubarHD is a USB DAC Headphone Amplifier with Coaxial and Optical Input. Its Headphone Amplifier belongs to Push-Pull with Class B which has the Class-B efficiency, but distortion. Owning whole digital input interface as USB, Coaxial and Optical and is different from the original Fubar DAC/Headphone Amplifier as Fubar3/4/4+ version (High Priority of USB Input) can let the user to manually choose their ideal transfer medium to satisfy the needs of sound quality by themselves in order to make the users feel the real and natural sound.
 
Technical Specifications
* Power Structure : Virtual-Ground power supply, Switching power supply
* Amplifier Structure : Coupling capacitor less, Push-Pull with Class-B
* Gain Control : High / Low (Only Digital input, attenuation 15dB)
* Headphone Impedence : 32 ohm to 600 ohm
* Circuit Protect : Output short / Over current protect
* Support Format : S/PDIF : 24-bit, 32kHz ~ 192kHz
                   USB : 24-bit, 44.1kHz / 48kHz / 96kHz
 
Connectivity
* Power Input : Dual Supply *1
                DC Jack (2.0mm) *1
* S/PDIF Input : Coaxial Jack *1
                 Optical Jack *1
* Analog Input : RCA Jack *1 (share with Analog Output)
* USB Interface : B-Type USB Jack *1
* Analog Output : RCA Jack *1 (share with Analog Input)
6.3mm PhoneJack *1
 
Chips
* USB Decoder : Tenor - TE7022L
* Digital Receiver : AKM - AK4113
* D/A Converter : AKM - AK4396
* LPF OPAmp : NS - LM4562
* OPAmp : NS - LM4562
* DC Servo : TI - TL072
 
Audio Performance (Coaxial in, Line out, 24-bit / 48kHz)
Frequency response (40Hz ~ 15kHz) : +0.02dB ~ -0.01dB
Noise level : -115.9dB
Dynamic range : 115.5dB
THD% : 0.019%
Stereo crosstalk : -114.8dB
 
Audio Performance (Coaxial in, Phone out, 24-bit / 48kHz)
Frequency response (40Hz ~ 15kHz) : +0.03 ~ -0.01dB
Noise level : -112.1dB
Dynamic range : 112.1dB
THD% : 0.019%
Stereo crosstalk : -110.6dB
 
Audio Performance (Line in, Phone out)
Frequency response (40Hz ~ 15kHz) : +0.03 ~ -0.01dB
Noise level : -113.0dB
Dynamic range : 112.6dB
THD% : 0.0003%
Stereo crosstalk : -105.7dB
 
System Requirements
* IntelR PentiumR 2, CeleronR 800MHz or higher computer system
* MicrosoftR Windows 2000R (Service Pack 4) or WindowsR XP (Service Pack 1)
* 128MB RAM
* Available USB port(USB 1.1)
 
Package Contents
* FubarHD
* DC24V 0.5A power adapter
* RCA wire
* USB wire
* User manual
* Warranty card
* Wrench