24V High voltage,high current power supply 2 simple screws for quick and reliable internal access Comes with op-amps for 12 sonic combinations Please double-check for correct orientation of op-amps and adapter PCBs before installing the op-amps and the PCBs onto the main board and re-check after installation. Installation with reversed orientation may destroy op-amps and the E12DIY. 4 architectural variants;The buffers come in through-hole and surface-mount variants (the latter of which need to be soldered onto the adapter PCBs for use). The op-amps also come in single-channel and double-channel variants. Thus there are four architectural combinations: A. Dual mono op-amps (through-hole) + buffer (through-hole) B. Dual mono op-amps (through-hole + buffer (on adapter) C.Single stereo op-amp (on adapter) + buffer (through-hole) D. Single stereo op-amp (on adapter) + buffer (on adapter)
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