Dual headphones amplifier.

• 8HP
• two independent CMOY phones amps.
• to minimize left-right crosstalk, both left channels are in one dual opamp, both right channels in another.
• two input jacks for each channel are multiplies fro using a signal further.
• I used OPA2604 but another dual opamps possible.
• 6.3mm jacks are Rean NYS-2343.
• dual potentiometres 50K log are available from Thonk.