Onkyo TX-NR575 has two Wi-Fi modules (5 and 2.4 GHz) which can guarantee a stable connection with a high speed and range, which is crucial for the Chromecast technology. This receiver also features a digital-analog converter that produces clear sound using the special VLSC technology. Updating the firmware of the device, you get more features, like the support of Dolby Digital. Onkyo TX-NR575 works with any DLNA server, so you can play content right from your computer. It will find all files with tags, artist names, and other information. The Onkyo application is convenient and you can access certain functions faster than using a remote.
The audio components and built-in technologies like DAC generate clear sound at the power that can fill a large hall. You can use the free Onkyo Remote application to receive streaming audio from mobile devices, view and select tracks from online services, and control playback in two zones. Plus, for vinyl fans, the TX-NR646 is equipped with a phono input for connecting record players.
If we compare Onkyo TX-NR575 vs TX-NR646, then we see some differences, which may be crucial.
The main advantage of Onkyo TX-NR575 is that it works perfectly with other devices. It can use a DLNA server to play content. The main disadvantage is its application that does not have some important functions.
The main advantage of Onkyo TX-NR646 is its phono input that lets you spin vinyl and experience the noise-free analog audio signal. The main disadvantage is that it has some issues with inputs that result in no output signal.
The comparison chart will not be full without mentioning the total power output – 580 W Onkyo TX-NR646 vs TX-NR575 that has 610 W. The difference is not that big.
Therefore, if you need a device that is easy to use and has many great features, then consider getting Onkyo TX-NR575, but if you need a device with a phono input (with a preamp), then Onkyo TX-NR646 is right what you should buy.
Onkyo TX-NR575 overview
Onkyo TX-NR646 overview
The best receiver is Onkyo TX-NR575. Check Onkyo TX-NR575 price on Amazon