So I've been looking for a reason to replace my power acoustik diecast chassis (old school) amp for a while now, but it has never give me one until now. One of the front channels is messing up. This amp was my first one and worked so incredible for 6yrs, never any distortion. So I've ordered the JBL GTO75.4 II to power my infinity reference 6.5 components and orion cobalt coaxials. Anyone have this amp or heard it? Was it a good choice?