Burson Ha-160D Solid state Amp/DAC/Pre-amp

Measurement:

Input impedance: 36.5 KOhms 
Frequency response: ± 1 dB 0 - 20Khz
Signal to noise ratio: 110dB
THD: <0.12% at 150mW , 0.06% at 100mW
Channel separation: <54dB
Output power: 250mW (less than 1% distortion)
Output impedance: Pre-out 60 Ohms, phones out 5.6 Ohms
Power dissipation: >25W, internal, regulated power supply

Inputs:
1 x USB Connection (Support up to 24bit @ 96Khz with 10ppm low jitter clock)
1 x Coaxial RCA (Support up to 24bit @ 192Khz)
3 x gold plated RCA (line level input)

Outputs:
2 x headphone jacks 6.35mm
1 x pre -out with 10Db gain

General:
Weight: app. 6 kg
Colour: silver anodized aluminium

Dimensions:

265 mm x 250 mm x 80 mm

The information here is from http://www.partsconnexion.com/burson/ha-160d.html and I would suggesta quick read to see everything that is packed into this aluminum box.