jrixn1

Is this a question specifically about modding your existing pedal, or generally looking for other options/suggestions? If the former, I can't help; if the latter, perhaps a Boss LS-2 (active) or a Bright Onion AB (passive).

I wonder if you have a particular bassist, band, recording, style of music, etc in mind, to help further narrow down the sound you are after?

"Tube warmth" is quite a broad area. The VT Bass is different from the BDDI as it has a "character" knob, which could help narrow down which flavour of tube warmth will work best. I found it helped me to realize I was after more B15 than SVT. Similar idea with Darkglass Vintage Microtubes and its "era" knob.

I thought the house bassist uses Silver Slaps. A double bass is such a classic instrument that it can open a lot of doors. I'm not very good bassist and I never make any attempt to network; still, I get offered more gigs than I can take on, so I end up declining some quite nice ones (and well-paid too, & some abroad stuff). This is because the bandleaders want a double bass rather than EUB or bass guitar. The style is jazz, swing, rock'n'roll, "postmodern jukebox". (Not intending to discourage anyone from taking up EUB - just giving a perspective.)

It doesn't require it - but it can take it and go loud, if you want to. I used a Shuttle 9.2 (500W into 8ohm) with my One10.

Something like this: https://www.thomann.de/gb/thomann_rack_case_2u.htm https://www.thomann.de/gb/millenium_rackbag_2he.htm How big is it (how many "units")?

Particularly if singers are involved, you'll do well to be familiar with the American Songbook. A crash course would be to listen to Ella's records all with the similar name: "Ella Fitzgerald Sings the [Gershwin/Cole Porter/etc...] Song Book".

Night Train - Oscar Peterson

I sometimes use a simple overdrive pedal, but otherwise I'm plugging straight in with my P bass with flats. Sounds so nice I don't feel the need to adjust anything at all.

Love this. Can I have first dibs if you ever sell it!

I confirm my lovely tort BB434 pickguard is indeed the same shape as the original.

Does a combo exist which has an input impedance of more than 1MOhm? If not, either you will be happy going straight in, or you will have to bring your Tonebone.

I think RCF 732A (17.8kg, £742), HD-32A (18kg, £818), or QSC K12.2 (17.7kg, £709) is a fairer comparison - so heavier but cheaper. The FR800's weight at 15kg is hard to beat!

https://en.wikipedia.org/wiki/Powered_speakers#History

Even simpler would be a QSC K8.2 (or other powered speaker of your choice). 33% fewer cables to plug in!

Also see this thread - https://www.basschat.co.uk/topic/304769-ambient-in-ear-mix-on-a-budget-zoom-h2n-recorder-and-in-ear-monitors/

Love my BB735A and BB434, so another vote here for Yamaha. Another option, if you are patient/lucky enough for one to come up, is a used Maruszczyk Jake.

You have a rack preamp so are you also looking for a rack power amp? If so, and if it was me, a Crown XLS 1502 would be on the shortlist. There are also less- and more-powerful variants within the range but the 1502 is a good starting point.

Another possibility (depending on the amps' input/output features) is to connect the line out of amp #1 to the line in or effects return of amp #2. What are the amps, and why do you want to do this? Knowing these details might help to find the best suggestion in your particular situation.

It has both XLR and jack inputs.

I have gigged with both RCF and QSC, and either will be a good choice. I used to play a similar-ish rig to you (Shuttle 9.2 + Big Baby 2) and now I use a RCF 732A. The RCF has a simpler panel - fewer inputs, no digital menu, no "scenes" (eq profiles), no summed output. For me that is a plus; for others, they will prefer the QSC. The handles on the RCF are a better size, in a better location, and there are more of them.