Not best value as bang for the buck, but the customer service on both seems to be great. Thats what you are paying for.got it, cant decide between the two, seem to be the best value for 3500-4k watts right??
i run 2 40.1s on 12volt set up & i love them. i run them at .3 ohms before imp rise. the amps are awesome at 12v. they will do way more than rated power.nick is a great guy & has outstanding customer service.
i have never personally delt with jacob at sundown but he also has an impeckable reputation for customer service. can't go wrong with either but, my chioce is 40.1
(you know the new 40.1 has not been released yet)