then my apologies I am misinformed. is there any way I can tell if an amp,puts out what it says it does then? because I've relied on cea when,0picking out amps for the past 8 months
It will be different with each setup. Read up on box/impedance rise, that will also factor in your real world power output.
Tests on benches and amplifier dynos(d amore amp dyno tests) will not tell you how much power you will actually get when it's in your vehicle and electrical system. It is still a way to measure how much power the amp will do at specified ohm loads. You need to do research and if you have the amp, look up on how to do clamp tests to see how much power you are actually running.
some of the best competition amps on the market are not CEA and they are winning every lane in spl competitions and they can even be ran at .5 ohms too.
Rockford, alpine, kicker, jl amps are decent amps but a lot of times are very overpriced, not very worth unless you get an amazing deal
Sundown, incriminator, ct sounds, DC, soundqubed, digital designs, mmats, american bass vfls, are all proven amps in the competition lanes since in competitions they clamp your amps to place you in a certain class sometimes and those amps get clamped a lot.