Have an Xli 2500 as a sub amp in the music room, overkill for sure, never overheats, never skips a beat.I always wanted to have some for my own vehicles, but they are just so huge. I would have to designate such a large area for them. They are great amps that will last you for quite a long time. I have a Crown amp, for my DJ speakers that I have had since 1990. It finally went out on me last year. It was a highly abused amp.