Yamaha AVENTAGE RX-A660 Visit Site

Pros / The power output is excellent.

Cons / There are only four HDMI inputs.

 Verdict / The Yamaha AVENTAGE RX-A660 has the necessary power and audio format compatibility to be the center of your home theater, but only four HDMI inputs is a concern.

TopTenREVIEWS - Silver Award - Awarded for excellence in design, usability and feature set

The Yamaha AVENTAGE RX-A660 is a powerful AV receiver designed to be the hub of your home theater. It has one of the best power outputs at this price range; it’s easily capable of powering your home theater. It features the latest and greatest audio decoders, so you’re sure to have the best surround sound. You can connect devices to it wirelessly via Wi-Fi and Bluetooth, and play hi-res music over your system. For these reasons, the Yamaha AVENTAGE RX-A660 has earned the Top Ten Reviews Silver Award for best AV receiver.

  • Rated Output for 8-ohm Speakers
  • Rated Output for 6-ohm Speaker
  • Warranty
  • Height
  • Weight
  1. According to the manufacturer, this is the power output when using 8-ohm speakers.
    More is Better
  2. 2  Yamaha AVENTAGE
    115.0 Watts
  3. 130.0 Watts
  4. 80.0 Watts
  5. Category Average
    86.0 Watts

Power Handling

While power output isn’t everything, it matters a lot, especially if you’ve upgraded your home theater speakers. If the amplifiers of the receiver aren’t powerful, then you aren’t going to get much volume out of your speakers. This is why the RX-A660 is one of the best stereo receivers around $500. It has the second highest power output per channel in our review.

With 8-ohm speakers, the RX-A660 is rated for 115 watts per channel. Most receivers have an output rating around 80 watts. With 6-ohm speakers, it’s rated for 140 watts per channel, whereas most receivers have a rating around 100 watts. This is easily enough power to make your home theater feel like a real theater.

This receiver features two-zone audio. You can separate two channels from the seven channels and create a second zone where audio from a second source can play. You can use this for powering two speakers in a separate room, allowing you to play music in one room and a movie in another.

Audio Formats

The quality of your home theater depends on your receiver’s ability to decode the audio format from the DVD or Blu-ray source. The audio formats have the audio mixed to specific channels to provide the best overall surround sound. However, some audio decoders are designed to enhance your stereo formats or upmix an audio source over your surround sound.

With the Yamaha AVENTAGE RX-A660, you get all the necessary audio decoders. It comes with decoders for Dolby TrueHD and DTS-HD, the two formats directors use when mixing their soundtracks for the theater. This means that you’re hearing the dialogue, soundtrack and action just as the director intended.

It also comes with decoders for Dolby Atmos and DTS:X, which are the next audio format. These audio formats have overhead channels in their mix. This added dimension to the audio makes you feel like you’re right in the middle of the action, especially when a plane flies overhead. However, since these formats are so new, few movies use them. That said, you can expect it to become more popular.

For upmixing, the AVENTAGE gives you the option of using the Dolby Pro Logic II or DTS Neo:6. These are matrixed decoders that use a proprietary algorithm to analyze the audio signal and separate the frequencies to output to specific channels. You can take a stereo signal, which has two channels, and upmix it to 5.1 or 7.1 surround sound, or you can take a 5.1 signal and upmix it to 7.1 or higher. It’s helpful for getting the most out of the audio from watching cable TV. This receiver also has the Dolby Digital Plus decoder, which is the most common format for streaming services like Netflix and for streaming audio from mobile devices.


One of the most important features of any surround sound receiver is the number of HDMI inputs, because this either limits what you can connect to the receiver or allows you to grow. This is the biggest downside to the Yamaha AVENTAGE RX-A660, which only has four inputs. Most users need an input for a DVD player, a Blu-ray player, a gaming console, and a cable or satellite. So, four HDMI inputs might be all you need right now. However, most home theater experts recommend getting a receiver that has two HDMI inputs more than you need, which is why most AV receivers have six HDMI inputs. This provides room for expansion.

On the plus side, the HDMI inputs are compatible with 4K and 3D. They’re also compatible with HDCP, an anti-piracy format that some Blu-rays and DVDs use. Without an HDCP-compatible HDMI input, you wouldn’t be able to watch the movies that encrypt their content.

Like all the best home theater receivers, the RX-A660 has multiple wireless connectivity options – Wi-Fi, Bluetooth and AirPlay. The Wi-Fi option works with internet radio station and streaming apps so that you can stream music from Pandora or Spotify. You can also stream music directly from your phone with the Bluetooth and AirPlay connection. You can use Bluetooth to control the receiver via an app on your smartphone.

There are two subwoofer pre-outs, allowing you to add huge bass to your movie nights. There are also legacy inputs for digital and analog audio and video. So if you have sources that aren’t compatible with HDMI inputs, such as old VCR players, they can still connect with this receiver.

Help & Support

The Yamaha AVENTAGE RX-A660 comes with a two-year warranty, which is the industry standard for AV receivers. Few manufacturers offer longer warranties. If you need help, Yamaha provides support through phone or email. In addition, there are tutorials available on the company’s website, which can help you learn all the ins and outs of building your home theater system.


The Yamaha AVENTAGE RX-A660 is one of the best AV receivers around $500 because it has one of the best power outputs and all the best audio decoders. It also has ample wireless connectivity and legacy inputs. The only downside is the four HDMI inputs, which is two short of most AV receivers. But with seven channels and two subwoofer pre-outs, you can easily turn movie night at home into a theater experience.

Yamaha AVENTAGE RX-A660 Visit Site