Will not exceed $150! for that price, you will get:
1, Hight quality full aluminium alloy case ( includes the volume control knob)!
2, OPA2134 X 3 PCS, one for headphone amp pre op, one for standard line out, one for adjustable line out . all OPA2134 can replace by other op which is DIP8 , and suitable for the power (+/- 12V power
supply)
3, High quality headphone amplifer IC ( TPA6120 )!
4, Potentionmeter from Alps!
5, ELNA capacitor!
6, One power adaptor!
7, One year warranty!
8, High build quality!