Editor’s Note: This product has been removed from our side-by-side comparison because it has been discontinued. You can still read our original review below, but Top Ten Reviews is no longer updating this product’s information.
AV receivers serve one purpose – to connect all the multimedia devices you own in one place. The Yamaha RX-V671 is a physical hub for all your entertainment needs. It connects your Blu-ray player to your HDTV and surround-sound speakers. Nearly any device you own, whether you bought it in 1980 or yesterday, is compatible with this AV receiver.
This versatility of the Yamaha RX-V671 is wholly dependent on its wide connectivity array. Yamaha did a great job of including the newest digital connection ports such as HDMI as well as the established analog connections such as coaxial, component and composite.
Furthermore, this AV receiver produces nearly unmatched sound and picture quality. Compound all that on top of its GUI and online capability to stream content from services such as Pandora and Rhapsody, and you have a product that truly connects every entertainment outlet you own.
AV receivers by their very nature aren't beautiful machines. They're utilitarian and boxy. That being said, Yamaha did a good job in making what is essentially enormous router into a sleek-looking machine that meshes well with any home entertainment center you choose to apply it to.
When we measured the performance of the AV receivers on our side-by-side comparison chart, we looked at a few key features. The Yamaha RX-V671 excelled in all the technical specifications we looked at. For example, the total harmonic distortion with this AV receiver measures a mere 0.09 percent. That number may as well be zero because the human ear cannot detect harmonic distortion that low.
Likewise, the frequency response of the Yamaha RX-V671 ranges from 10Hz to 100kHz. This response spans the sound spectrum that the human ear can hear. Therefore, every sound, note and voice on any media you route through this AV receiver comes out as crisp and clear as the day the creator recorded it.
Another performance statistic worth mentioning is the Yamaha RX-V671's power consumption and output. Each the unit's 7.1 channels of sound put out 90 watts of energy. The total energy consumption of this AV receiver is 460 watts. The former number is lower than many competing AV receivers; the latter is the heaviest consumption of any device on our side-by-side comparison chart. They're both healthy numbers, yet they cancel each other out when you consider how much power the whole unit draws and puts out.
The connectivity array on the Yamaha RX-V671 includes every port and connection we looked for when we rated and ranked AV receivers. In most cases, the unit included more than one port for each type of connection.
The mix of new digital technology with the familiar analog connections means that you have the ability to connect anything from that CRT TV you bought in 1985 to the HDTV you bought at the store last week. Both of these devices, and many, many others, are fully compatible with this AV receiver.
On the rear panel of the Yamaha RX-V671, you'll find five HDMI input ports and one HDMI output port. Just these six ports allow you to connect every HD device you have to this AV receiver. However, hooking up a portable HD device to the back of the unit can be inconvenient, to say the least. To counter that, Yamaha included a HDMI-in port on the front panel of this AV receiver. That's a total of seven HDMI ports on the Yamaha RX-V671. You'd be hard pressed to find people who could not connect all their HDMI-enabled devices to this AV receiver.
Other front-panel connections on the Yamaha RX-V671 include a USB port. This connection is specifically designed to work with iOS devices. This means you have the ability to connect your iPhone, iPod or iPad to the unit and play audio content stored on the device through your surround-sound speakers. Additionally, there is a video auxiliary port located right next to the front HDMI port. This allows you to connect analog devices to the front panel through either composite or component connectors.
The remaining rear-panel connectivity options consist of seven surround-sound speaker ports and a subwoofer connection. Furthermore, you'll find multiple analog connections, including component, composite and coaxial. Additionally, the unit includes Sirius radio connection and two optical video ports. Further still is a port to connect an AM/FM antenna. Lastly, you are provided an Ethernet network port that allows you to connect the AV receiver to your home network.
Dolby Digital Sound and THX are the titans of the sound industry. Nearly every television show, movie, commercial or any other professional production that passes through your television or speakers is captured or mixed in one of these sound formats.
Users who are not well versed in the difference between Dolby Pro Logic II and Dolby Digital TrueHD shouldn't worry. This AV receiver contains decoders for every flavor of Dolby Digital and THX sound, providing a cinematic experience for any movie, TV show or other media you choose to route through the unit.
The graphical user interface (GUI) on the Yamaha RX-V671 is quite intuitive. It allows you to control and manipulate the various settings for each device you have connected to the unit. Furthermore, the GUI gives you direct access to several internet-streaming services such as Pandora and Rhapsody.
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As we mentioned earlier, the Yamaha RX-V671 is fully compatible with any iOS device through its front-panel USB port. Connect your iPhone, iPad or iPod to this port, and you have the ability to play content stored on these devices right from the AV receiver's on-screen GUI. However, the unit lacks Apple's AirPlay streaming service, which would have been a nice addition.
At the end of the day, the Yamaha RX-V671 does everything you expect from an AV receiver. It has more than enough ports for all your media devices, including televisions, iPods, computers, speakers and much more. It serves as an excellent hub for all your home entertainment needs.