We are testing our E9 now! and may send out some samples for test next month!
And if all is OK, E9 will launch market in Sep!
All I can say is if the E9 is only a little better than the E7 then I would price it at $120-135.
If the E9 is noticeably different (positively) $150-200.
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
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!
Yes, the tow headphone out jacks wired in parallel! but we put a extra resistor in 3.5mm output, so the output power is smaller than from 6.5mm!
We don't hope people plug the earphone into the 6.5mm jack in case damage the earphone or the ear!