Alright it's been a while. I bought two of these a while ago and gave the other to my friend. He finally got a new car. g35 coupe and wants to throw it in. I built him a sealed box built to re specs. All he needs is an amp. I personally wasn't happy with the directed 1000d that i had running mine. He's looking to spend around 500 but wants a good amp that will power this speaker properly. Thanks in advance fellas.