forte 4 VS. forte 4a VS. forte 7

Perfectimage!
Forte 4 ,4a & 7 are Poweramps.
Perhaps U confused them as preamp.(i.e Forte 2, 40, 44)
and forte 44 pre has a remote control. :)

Jdvorak!
forte 4 has balanced input.
And I wanted to know which changes make 4 to 4a. :)

And Captain!
If you have any chance exchange forte 4 to forte 7 with extra $700, what will be your choice?
Could U tell me your opinion?

Thanks Everyone! :)

JY

Kevziek,Elizabeth,Artmaltman and Sagger:

Thanks for your good informations and advices!
Happy with nice music!

JY