Back in the day the fender TBP? preamp was lauded for its tube sound, authenticity, feature set and quality tone. This is that preamp paired to Fender’s very overlooked power amp. In this era of fender bass amps they made a very deliberate decision to invest R&D to regain their footing in the bass amp world and all the products of that release were fantastic. I’ve owned three of that range!
Just for complete history… This is my old amp. I had owned and used a fender MB1200 power amp (I paired with a Aguilar tube preamp which I gigged for a few years).
The TB600 (and the 800Pro head which I still own) use the same power section architecture as the MB1200. It is a monster power section design and that’s where the majority of the (not very heavy) 13kg or so weight is in these amps. I played many gigs with no foh support and the more I turned up the TB600 into my 212 cab it never failed to deliver and was alway big and hefty sounding. It was clean and warm, it could get nice and gritty
Sorry for chiming in again but this head will last for ages and is the tone folks will always end up coming back to after trying out all the latest and greatest new gear which ultimately attempts to recreate the sound and feel of a head like this.