Loved these amps.I miss the Fender TV Bassman Amps - great sound, thick and powerful
My Fender Studiobass amp (all-tube) sounds awesome with my Passive P's, J's & my Duesenberg Starplayer. A match made in heaven. Not so great with other types of basses as you can't EQ out the baked in tone.i use both in tube flavour, SVT and Studiobass for different tastes. Both sound great.
My Jule Monique M700 (tube pre, based off Ampeg design) sounds great with every bass I plug into it, including DB & piezo-equipped basses (acoustic bass, Rob Allen basses). It's also 1/4 of the weight so it goes to all the gigs.