I have these hooked up to a Sony HU with some JBL 6.5 door speakers. Amazing just amazing the base from these 6x9 they are outstanding just on the HU can't imgine the amped up. Just buy them u CAN'T go wrong. Had mine for 2yrs now no issues.
This amp was amazing for about a year. I had it on 3 kicker subs in my truck, and they rocked. That is until it quit. The amp just gave up. I wasnt using to hard, and it was NEVER maxed out, but it was just not enough. If you need good sound for something a little smaller thats fine, but I would buy a P1000 over this anyday.
My set had defective crossovers after a brutal install today I will have to purchase a set of new crossovers :( These speakers will sound gr8 if the crossovers work. If you buy these buy a set of 2 way universal crossovers just incase the crossovers are defective.
purchased this amp thinking i would need to replace it ina year or two have it running now on my third year and all i can say its that if it does go out on me by now i will come back and bay the exact same one i have never had any problems with this amp loud and clear i am running 2 12" subs and two component speakers. i run this for my trips when i go on the high way for an hour or two and it keeps kicking took me about a full month to set the gains to the corect level. hint start low and you will get the best performace. perfect 10/10.
If anyone have a question of how good is MbQuart RA640.4, I can honestly say It's excellent. I had JL 300/4 original and JBL Px300.4 and all I can say is, it sound if not the same, better than the JL. It kills the JBL. I replace the JL with JBL because it died after 8 year and I could tell the the sound quality went down, then I replaced the JBL Px300.4 one week ago with Mb Quarts RA640.4 and WAW incredible sound difference, it also took away some engine noise that I was getting with the Jbl. To be totally honest WAW, WAW, WAW and it does not get hot. I have it under my car seat pushing 4 JL C-5s and could not be happier. I don't write reviews but this was an excemption. I was researching for over a month and I could not get a stright answer, so I help this can help someone.
I have always been a man of Audio Bahn and JL audio but this time around I was convinced to try RF. I bought a P2D4-10 and a P 300x1. I built a custom box for my truck using the box wizard on rockfordfosgate.com. This small 300 RMS setting is AMAZING for what it is. I previously had a 800rms audiobahn 12 with a 1000rms crunch amp and this destroys it! The amps birth certificate rates it at 455RMS @ 2ohms.
Amazing quality for the money!!!
amp burnt up less than a month after the manufactures warranty ran out. until then it was awsome pushing 3 12" Alpine type R's @ .66 ohms. when it worked it was great but not worth it, if it's just gonna burn up 1 year after i get it.
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