My FIL has his Yamaha RX-Z7 Home Theatre Amp for sale.
This was pretty much the gold standard in home theatre and music sound quality and power in it's day. Cost a fortune. It was 1 model under it's flagship series.
It's a few years old now, because it was originally mine and I sold it to him, and he has "upgraded" to a model that supports his new 3K, 3D TV.
I had it connected to Monitor Audio Speakers, and a huge sub and it never failed me in any way. It's an extradinary bit of kit.
Please note that it doesn't support networking features like Airplay, and doesn't have support for 3D, 4K etc.
It's exceptionally heavy and I can freight it, but at the new owners expense and risk. I am in Auckland.
Asking Price $900 ono.