Yamaha markets the HTR series to big box stores, and the RXV line to smaller retailers with better sales person knowledge, and higher line equipment. The HTR series is also rated differently (power wise), but I'm sure if you opened up a HTR compnent, and an RXV at the same level, they'd be the same inside. As stated above, the HTR series tops out below the RXV, that is to say the top RXV model is better than the top HTR model.