I would say the Visonik amp, they both seem to have nice features and controls however Visonik has been around for a long time.
Also based upon "Ohms Law" where power (wattage) = VxI:
The Kole amp has (2) 25 amp fuses :
P=50x13.5 = 675 watts
The Visonik amp has (3) 25 amp fuses :
P=75x13.5 = 1012.5 watts
Of course the 13.5 volts represents the engine running and power (wattage) would be less if the engine is not running due to the battery voltage being lower. Most batteries hold about 12.5 volts.
P=50x12.5 = 625 watts
P=75x12.5 = 937.5 watts
Also based upon "Ohms Law" where power (wattage) = VxI:
The Kole amp has (2) 25 amp fuses :
P=50x13.5 = 675 watts
The Visonik amp has (3) 25 amp fuses :
P=75x13.5 = 1012.5 watts
Of course the 13.5 volts represents the engine running and power (wattage) would be less if the engine is not running due to the battery voltage being lower. Most batteries hold about 12.5 volts.
P=50x12.5 = 625 watts
P=75x12.5 = 937.5 watts
