I am looking into those for the first time for some big quads I want to put together over the coming months.
I see what seems to be very good quality ESC’s but with no mention of protocol – I ideally want AM32 or BLHELI32 to run DSHOT with Betaflight on the FC
Am I right thinking those would not be compatible? Why is protocol not even a thing for them - seems important? 
for example:
or
thank you!
What sort of quad are you building? What will be the main use? What battery will it be flying?
Hi Steve,
plan is to build a 10" long range-ish based on the AOS UL10 frame - I have some 3115 Motors so could theoretically just about get away with a 4 in 1 (motors rated @ 80A at max throttle) - but I rather play it safe. Planning to run a Tmotor F7 Pro FC - likely to srtart with BF and maybe give INav a go later)
And then the X-Class based on the Thor frame with some 4220 motors / 13" prop / 12S. Everybody was using ADP 120A ESC for those but they no longer manufacture for the general public.
I found a couple of options but literally no review/mention of real world use - TMotor is my usual go to - but they discontinued their X-Class motors (F1000) and the ESC I can find do not even mention protocol (planning to run a Brain Radix FC - Betaflight with DSHOT meaning BLHELI32 or AM32). Biggest one they seem to have that support BLHELI32 would be the Cine 80A ESC.
Here are the options I found for now (for the X-Class)
Would rather go for TMotor or Hobbywing - but am I right they do not have anything that would fit? Thank you 
I can’t find the protocol they use either.
@Steviegeek you recently had some x class ESC what you use?
Hi guys, sorry for my slow involvement on this,
I’ve put HOBBYWING X-ROTOR esc’s on my Source X frame.
On the subject of big quad esc protocols these large esc’s are designed for helicopters and planes and usually run software called AIRCRAFT which I believe is a development from the old SimonK days. They don’t normally use a configurator, like BLHeli etc, but have dedicated programming cards which are basically PCB’s with loads of LEDs and jumpers or a switch to cycle through the various settings. Very much a hardware approach rather than the PC confidurator programs we are used to.
BUT having said all that, there are now esc’s on the market specifically being developed
for X-class racing which do run BLHeli or KISS software (eg. Flycolor X-Cross, Lucid, all sold by TBS)
So it very much depends on your use case and wallet capacity on what spec you build your craft
Thanks for that Stevie - completely foreign to the world of rc helicopter/planes so plan is to keep for now with quad protocols - I had a look at the Lucid but they are only 80A so way too small for 4220’s.
I did just pre-order the Sequre ones - some 70A for the 10" and the 200A for the X-Class. I like that they run AM32 and FlyingTech are all praised for the product quality and after sales service so 
I second that, Will is a good lad 
If you could manage with an 80A 4 in 1, can i ask why you are looking at 120A single esc? Could you not happily use 50A or even smaller. Which would be a weight saving, and for a long distance cruiser every gram counts.
Hi Steve, I was looking at the 125A as a minimum for the X-Class - which is just about sufficient for the ADP ESC’s. Those ADP ratings are very conservative though (I think 30s continuous before overheating) and do not automatically translate between brand or even sometimes model - ie some brands will rate something at 100A if it manages a few ms without blowing up
For the 10-inch - the TMotor 3115-1050kv are given to pull 80A at full throttle per motor. I should be able to get away with a very solid 4in1 but it will be at the limit if doing anything else but gentle cruising so individual ESC’s are recommended.
I think a 50A ESC is going to have a hard time if going at it - it is the recommended size for 5-inch acro/race quads (5-inch motors are rated around 40-50A at full throttle - but I have seen peaks of 150A+ in my flight logs).
The Sequre 70A seems to easily handle up to 110A - still very light (9g each) so at home on a light rig - and will be my springboard for the 200A X-Class monsters (loads more wires to solder and 4 x the ESC configuration to go through )
