SHMIX solderpads and hacks

v2.0

The pinstrip on the backside contains: ch1 in, ch2 in, ch3 in, ch4 in, ch5 in, ch6 in, mix out and level shifted out.

The inputs 1-6 are DC-coupled by default. If you want AC-coupled inputs, you can cut the copper between the solder pads for the C1 to C6 capacitor outlines on the backside. Then you need to solder 10uF thru-hole-capacitors where you have cut the copper.

v2.1

The pinstrip on the backside contains: line in, cap in, ch1 in, ch2 in, ch3 in, ch4 in, ch5 in, ch6 in, mix out and level shifted out.

Line in and cap in can be used for cascading multiple mixers. Line in are DC-coupled. Cap in are AC-coupled.

The inputs 1-6 are DC-coupled by default. If you want AC-coupled inputs, you can cut the copper between the solder pads for the SJ1 to SJ6 capacitor outlines on the backside. Then you need to solder 10uF SMD-capacitors where you have cut the copper.

v2.2

The pinstrip on the backside contains: line in, cap in, ch1 in, ch2 in, ch3 in, ch4 in, ch5 in, ch6 in, mix out and level shifted out.

Line in and cap in can be used for cascading multiple mixers. Line in are DC-coupled. Cap in are AC-coupled.

The inputs 1-6 are DC-coupled by default. If you want AC-coupled inputs, you can cut the copper between the solder pads for the C1 to C6 capacitor outlines on the backside. Then you need to solder 10uF SMD-capacitors where you have cut the copper.

SJ1 is a solderswitch where you can solder a short and disable the 1k output resistor for the mix output jack.

SJ2 is a solderswitch where you can solder a short and disable the 1k output resistor for the shifted output jack.