For the bigger toys... a new controller from EVnetics:
1000 Amps: The Soliton1 can deliver 1000A continuously if liquid cooling is used, or for 15-20 seconds out of every 90-120 on air cooling alone. This limit can be unlocked for racing to deliver up to 1400A (for short periods only!) upon EVnetics approval of your application (a special racing warranty must be agreed to in writing).
300 Volts: The Soliton1 can operate on 10V minimum to 342V maximum
Per the company:
"The Soliton1 was meant to fill the serious void left in the controller market when the Zilla went out of production last year."http://www.evnetics.com/home.html