The pre you have is decent.
(I use it too with a Forte 4a)
However, if you want a 'sweeter' pre, I would look for a tube hybred preamp.
My personal favorites are the Counterpoint (though prone to failure, and no longer in production) or the Audio Research models. Conrad Johnson too.
You could even just insert the extra pre into the bypass and use it on occasion! (My plan as soon as I get the new speakers paid for)
(I use it too with a Forte 4a)
However, if you want a 'sweeter' pre, I would look for a tube hybred preamp.
My personal favorites are the Counterpoint (though prone to failure, and no longer in production) or the Audio Research models. Conrad Johnson too.
You could even just insert the extra pre into the bypass and use it on occasion! (My plan as soon as I get the new speakers paid for)