Quark UBEC for my Neu 1515 1.5y/s brushless system ; 5A or 6A? which way should I go?

[shawn197]

The thing is that I have two quark brushless ESCs. One is Monster pro 125B. The other is SSB-mk2 which is not out in the USA. The monster pro seems to be working because it's making signal melody. But the other I haven't checked it out why it's not making a sound. However, the two motors were hooked up to different ESCs. I hope I will be able to fix 540C 8XL. I can be careless about the other one. Because I don't know what this motor is because it came with the used E-revo I bought.