what transistor is best?

[tadiam]

In the output what transistor sound best for an 25w amp? Metel case or plastic case?
And of this what are the best in metal case?
Mj15003
Mj802
Mje13030
2n3771
2n5886
2n6488
2n3055

metal or plastic case for an quasi amp? o best substitutes..................thanks

 

[unclejed613]

the MJ802 probably has the least beta droop of the ones listed, and the 2N3055 probably the most. though it's not listed one of the MJ150xxx series, like the 15022 or 024 would be somewhere in between.

 

[AndrewT]

what class of operation?
A or AB or B or D or?

 

[tadiam]

re

ab operation