Tfade did a clamp of the 520.4 on maf . It clamped 103x4 at 5ohmsDammit I might have to be the 1st to use one lol... I was looking at their tiny 4 channel version for running tweeters. Looks like the amps active capabilities are poor (80hz fixed) but I am using a 3 way electronic crossover anyways...
Prob the same clamp pics from tfade posted everywhereCACO has the answer you need with full pics of meters
Man you weren't kidding - they all are very very similar to the ion series! Hell I could have saved about $30, but I wonder if they change some of the internals to make it better like some other cookie cutter companies do? Anyways I went ahead and got the ion 520.4 and I'm gonna test it on my highs in my 3 way active setup to see how I like it compared to the MB Quart 4.80 (Class AB) thats running the highs now...This is the power acoustik razor amps with another heatsink design, i did a review of the pa razor 2000.4d the thing sounds great and puts out some power