In this page http://www.quarkbrushless.com/recent2.htm I found:
Motor Limit: No limit (540 size Brushless & Brushed)

I gotta imagine that they were spart enough to fix the problems with the old controllers. Only way we will know for sure is to get one and test it.

125B claims 125A, the new one claims 100A, dont think it will be for 1/8 trucks

It looks to me that the SSB-mk01 is rated at 100A The SSB-mk03 is rated at 120A.

Technically Quark calls the 125B a 1/10 controller as well.

I dont know for sure but it looks to me like it should at least be as capable as the 125B. Especially if they fixed the heat issues by putting a real heatsink on it.

I own a SSB-mk2. I bought it october last year.
The manual says that it is for 1/10 scale cars and trucks.
I find it very handy because it uses internal BEC to allow us to use mimh 8~18cell and 1~6 lithum cells without having to add UBEC.

And it has a heat sink built into it.

How does it run in the emaxx?

What motor, battereis and gearing are you running? Any problems with it overheating like we have with the 125B?

It seemed to run very well on a race track until I had a problem with the motor. I used a Feigao (I wasn't quite sure about the exact model of it because it came with the Gorillamaxx G2R chassis that I bought used. And I forgot to ask the person about it) on 14 cells (Maxamps 4200 Mi-mh). And the gearing that I used was the stock gearing of 68T spur and 19 pinion. It has a lot of neat functions. It provides 64 different settings of traction control and overdrive function which gives the motor very high output. There are 4 new brake modes with 100 steps in each mode including professional ABS brake, Artificial Intelligence automatic brake, and semi-auto brake. It also has 32 step voltage limit function and internal multi-protection function which allows us to check temperature, voltage, signal, motor mal-function, and setting. It seems to be more thoughtfully made than 125B because it has built-in heat sink and a fan. It basically runs cool.

You can run without UBEC with 22V? I thought, on the site, it said at 8 cells NIMH was the limit before going to UBEC. If you are right, quark might have done the almost perfect esc before the MMM

If you buy a SSB-mk01, you have to add UBEC.
But with SSB-mk02 and mk03, you don't have to.

what about start up, is it smooth, worst or better than mamba max ?

It's very smooth, but I don't know anything about mamba max since I've never used it before.

Where can we get one at Shawn?

Thanks for the info shawn, quark should hire you, as you have sold at least 10 of these escs by now.

Great info, really appreciate you posting that. I really like the quark escs, especially how they seem to be able to run any motor.

Shawn live in seoul... I have tried to get one by myself few month ago, all website selling it are written in korean, I guess early product model were kept for internal market