I just bought Yamaha NS777/444/333s and a SW-315 subwoofer for a home theatre setup matched up with a Pioneer Elite VSX-54TX receiver. Despite comments from a lot of critics, these speakers perform well and look great. If you compare them with other speakers on list price, there are better options, these are available on the market with a 40-50% discount making them a great value. I got the entire set for $850 delivered to my door. Looks like the NS-8390s are an older model, I don't see them on the US Yamaha website but they are on the Japanese one.