It's good experience to play, but single amp is always better unless you're planning to use electronic x-over.
Tonal balance with passive is only achievable at very limited volume levels. Even if you 'dial' a proper volume level, you will still have a chance to loose tonal balance on sophisticated music that requires large dynamic headroom.
It's always better to get the best out of single amp rather than getting the worst out of biamp.
If you truly want to have best of both worlds, you should use tube preamp and SS amp.
Tonal balance with passive is only achievable at very limited volume levels. Even if you 'dial' a proper volume level, you will still have a chance to loose tonal balance on sophisticated music that requires large dynamic headroom.
It's always better to get the best out of single amp rather than getting the worst out of biamp.
If you truly want to have best of both worlds, you should use tube preamp and SS amp.