JLM V8 opamp kit uses 4 x dual standard opamps like NE5532AP, OPA2604AP, TL072, LM833, OPA2134 to make a brut powerful hard load driving opamp with low THD. All 8 opamp outputs share the load.
Pinout is standard 99v, 2520, 990, 992, 993.
4 x NE5532AP can drive 60ohm load on +/-12v to +/-18v power rails
4 x OPA2604AP can drive 60ohm load on +/-12v to +/-24v power rails
4 x TL072 can drive 250ohm load on +/-12v to +/-18v power rails
Note if using the V8 in BA BAD or BAN PCB leave out or cut off the 0v ground pin from this opamp for best noise performance