Orion HCCA 150 Pop top amp

You'll need to order the parts you need.

The output and power supply FETs are in parallel groups. The FETs in each group need to be fairly closely matched. This means having all in each group from the same batch/date code. It's generally not possible to buy FETs in matched groups (unless you buy full 'sticks', 50pcs). This means that you will typically have to buy more than you need so you have a better chance of having enough matched components for each group.