i liked the input filter which can run the whole thing with only 1 rca wire.
very good sound quality.
no car noises.
powerfull,specially the subwoofer output(channel number 5).

sometimes it takes 5 seconds to turn on(it's like the protection led go on and after few second the power led goes up with amplifier).
i'm very disapointed that it dont have a bass boost and bass equalizer.
this specific xta 5 channel amp dont have these,insted of that it does have a mono output,kind of strange.

i have this amp running my whole system,
it ran a couple of cerwin-vega 5.25" front speakers and a couple of 6*9 pioneer speakers,and a kicker compvr subwoofer.
i have to say that it looks great,have a clean and clear sound,no noises at all,and enough power to run the whole system without any problem.

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i had hifonics(better),lanzar(garbage)