BassmanPaul

I must admit that the Mesa TT800 is an amp I'd like to own. From what I have read it's a nice combination of new and vintage tonalities.

Just for interest who is JJB?

Daisy chaining, amp to speaker 1, speaker 1 to speaker 2 is still a parallel connection. The result is 4Ω.

If you can get by with a comparatively low powered amp an SVT might fit the bill.

As long as you don't get a volume surge above 200 odd watts! You can run a 5W speaker from a 1KW amp as long as you don't drive it past that 5W rating!

You could use the amp section to power a bass cabinet - say a 2x10 of some kind.

Having looked on-line both cabinets are 8Ω therefore 4Ω when run in parallel. the Amp will supply 325W into that impedance. Split equally between the cabinets each one will see 162.5W. Your baby cabinet will be fine!

You need to tell us what impedances are in play here. Amp: 325W into what impedance? Cab 47: What impedance? Cab 27: what impedance?

Thank you for the update. B15s are great amps!

Your amp is a guitar amp and cannot handle bass frequencies. The big 'ole in the back is not a tuned port so it's similar to an open back cabinet - OK for guitar, useless for bass. IOW the wrong tool for the job.

Make sure that the tube amp ALWAYS has a load connected when in operation.

A HPF would give you some room for safety. You certainly can destroy your speakers by overloading them at low frequencies.

That Sir is a very simplistic view of our instrument! My active basses just have a simple pre-amp with treble, middle and bass on board. These allow tone changed from the instrument. My Precision just has a volume and treble cut controls. Just the same as a guitar.

My only comment is that the 4x10HLF is a somewhat dark cabinet. I'd say try it and see if it suits your tonal goals.

I have to admit that I generally agree with the OP. Then again I first picked up the bass in 1962. Then it was well nigh impossible to get a clean bass sound out of the low powered valve/tube amps of the time. I'm now using a 2KW Class D power amp and have cleans up the wazoo. I built a pedalboard and bought a few pedals. None of them are for distortion I'd had enough of that crap growing up. On some occasions I thought that I could use the pedals to enhance the tunes. In truth I have never taken the board to a gig yet. LOL

You wouldn't like the Crossover distortion from Class B.

You'd need a long extension cable for that!

Does the DR103 have a socket on the back marked 'Slave' or some such? If yes plug a cable from that socket to the input of the slave and all should be good. You will need a separate speaker system on each amp.

Please come back and let us know what the problem was with your amp. I, for one, would like to know.

B15 clones do indeed exist but I was not referring to them just an original B15. There's magic in them old amps.

That looks like a nice job! Congrats!!

My memory failed me, the outputs are TO3P not TO220. I apologize.

You also might think about running a HPF in your signal chain to ease the strain on a small driver.

TCE tend to do things their own way! LOL Their wattage ratings are another!!

I bought the unit in need of repair. That was simple enough the output transistors had failed. I repaired the output board and added devices to the empty slots - had to drill and tap the heatsink to accept them. I then wanted to improve the cooling path but got involved in other more important projects. I'm now considering dropping in a Class D module but haven't researched that too much to date.