Yamaha AVENTAGE RX-A670
Crutchfield Customer Review (What's this?)
Get thrilling movie sound with the Yamaha AVENTAGE RX-A670. This receiver delivers an immersive movie experience when you match it to a 4K Blu-ray player and compatible display. Dolby Atmos and DTS:X decoding give you 360-degree surround sound to match the incredible Ultra HD picture.
For their AVENTAGE-series receivers, Yamaha uses custom-designed parts with anti-resonance technology to reduce distortion caused by vibration. A rigid H-shaped frame adds stability to cut out chassis vibration almost completely. A specially designed fifth foot at the center of the receiver's base dampens internal and external vibrations, and an aluminum front panel further reduces resonance to maximize sound quality.
The RX-A670's meticulous construction, symmetrical amplifier layout, and low-jitter digital circuitry all work together to give you accurate sound with precise stereo imaging and a wide, natural soundstage.
Built-in support for streaming services like Spotify®, TIDAL, and Pandora® lets you play and control your favorite music directly through the receiver. Apple® AirPlay® lets you stream from a compatible iOS® device, and Bluetooth adds even more streaming flexibility. You can even stream audio from the receiver to a set of Bluetooth headphones — great for late-night listening.
Setting up a whole home wireless music system has never been easier. This receiver's built-in MusicCast technology lets you add audio playback in up to nine additional rooms with compatible Yamaha wireless speakers and sound bars.
MusicCast lets you stream music from your personal collection, internet radio, and streaming services. You can also play Bluetooth sources, sound from your TV, and even CDs and vinyl. The free MusicCast Controller app makes it easy to access your music and control what you have playing in different rooms.
The RX-A670 can power up to seven speakers. You can set up a standard 7.2-channel surround sound system, or use the rear surround channels as height channels in a 5.1.2 Dolby Atmos system.
You can also use the receiver's rear surround channels to bi-amp your main front speakers for more powerful sound, or reassign them to set up a wired stereo system in a separate room. The audio in the second zone mirrors what you have playing in your main room, so you can enjoy your music as you move around the house.
Scratch & Dent items may be missing non-essential accessories. In some cases the manufacturer's accessories have been replaced with generic equivalents.
Malik, New York, NY
Average Customer Review(s):
Awesome sound and stylish I'll recommend this receiver to anybody
Pros: Easy to use
Can hear the sound difference immediately from my ~8 year old 5.1 channel Yamaha.
Pros: Size...won't find a smaller one with these capabilities
I purchased this to replace a Yamaha RXV 575 thinking that moving up into the Aventage entry level would be better in sound and video, I loved the RXV 575 it had quality and depth just was not up to the task of handling 4K and new sound formats, but being that the RXA670 is the same wpc and specs were pretty close, but the sound quality was less than satisfactory I manually setup all my receivers and have since getting into hometheater in 2004, I spent 4 hours tweaking and adjusting the sound on this RXA760, watching 4K movies, TV shows, Netflix and a few song selections, and it just never got to that sweet spot for me, it made my subs seemed flabby and my center channel high pitched not a good match for titanium tweeters, I could go on about the sound of this receiver or lack of sound quality, but on the positive side of things, Crutchfield was great about letting me exchange it for the Denon AVR-X2300, I will give my review of the Denon once received, setup and auditioned, hopefully it will be a more positive sound experience.
Pros: Top notch Crutchfield customer service!
Cons: Too many to list just read review,mostly sound quality
|Number Of Channels||7|
|Stereo RMS Power (watts)||80|
|THD in Stereo||0.09 %|
|Frequency Bandwidth (stereo)||20-20k Hz|
|Minimum Impedance L/R||6 ohms|
|Minimum Impedance Center||6 ohms|
|Minimum Impedance Surround||6 ohms|
|Apple AirPlay||Built in|
|App Remote Control||Yes|
|USB port for iPod/iPhone||No|
|FM Sensitivity||Not Given|
|HD Radio Tuner||No|
|On-Screen Display||Thru HDMI|
|Auto Speaker Calibration||YPAO|
|HDCP 2.2 for 4K Video||Yes|
|HDR-compatible||HDR10, Dolby Vision (FW), HLG (FW)|
|HDMI Standby Pass-through||Yes|
|4K Video Upscaling||Yes|
|HDMI to HDMI Upconversion||Yes|
|Multibrand Remote Control||No|
|Parts Warranty||3 Years|
|Labor Warranty||3 Years|
|Powered Multi-room Audio Output||No|
|Preamp Multi-room Audio Output||No|
|Multi-room HDMI Output||No|
|Dolby Digital||DD, TrueHD, DD+, EX|
|DTS||DTS, HD, HDMA, ES, Neo6, 96/24|
|Inputs & Outputs|
|Component Video Inputs||None|
|Component Video Monitor Outputs||None|
|Optical Digital Inputs||1|
|Coaxial Digital Inputs||2|
|Optical Digital Outputs||None|
|Coaxial Digital Outputs||None|
|HDMI Monitor Outputs||1|
|Discrete Subwoofer Outputs||No|
|Multi-Channel Analog Input||No|
|Multi-channel Preamp Output||No|
|Main Speaker Output Pairs||1|
|Main Speaker Terminals||Posts|
|USB Connections||1 Front|
|Removable Power Cord||No|
Aventage Series: The Aventage line of Yamaha AV receivers is based on the audio design concept of providing a massive, full-bodied sound for movie sound effects and the accurate reproduction of music sources. By expertly harmonizing traditional and advanced technologies, every factor that affects sound quality, from materials & parts construction to circuitry layout, vibration damping, and "fine-tuning" the sound, is handled with no other thought than to achieve the best possible audio quality. As a result, every Aventage receiver has the ability to reproduce the most subtle details of high-definition sound, so that listeners can enjoy a truly high-class sound studio experience at home.
Amplifier Assignment: The Yamaha RX-A670 allows you to assign its seven amplifier channels for Surround Back speakers, Dolby Atmos speakers, Bi-Amped Front speakers, or Zone B speakers.
YPAO Sound Optimization: This unit employs the YPAO (Yamaha Parametric Acoustic Optimizer), which automatically adjusts the output of the speakers based on placement, performance, and the room's acoustic characteristics. Yamaha's YPAO system uses a small microphone and sophisticated equalization to automatically set the best sound for any room, no matter where the speakers are. First it checks the speaker connections and phase of each speaker. Then it sends out tones which are captured by the microphone to analyze the room acoustics and sets a variety of parameters; such as the speaker size, the distance of the speakers, and even the volume level; until it achieves the best sound conditions for your room. Using the supplied Optimizer Microphone, YPAO performs the following checks and makes appropriate adjustments to give you the best possible sound from your system
Note: You can also choose to manually adjust the AV receiver's speaker, crossover, & EQ settings.
Compatible Digital Audio Formats: The AV receiver supports the following stereo & multichannel digital audio formats through its HDMI jacks and optical/coax digital inputs.
|Digital Audio Connector||Audio Signal Type||Audio Signal Format|
|HDMI||2Ch Linear PCM||2ch, 32-192kHz, 16/20/24-bit|
|Multichannel Linear PCM||8ch, 32-192kHz, 16/20/24-bit|
|DSD||2-6ch, 2.8824MHz, 1-bit|
|Bitstream||Dolby Digital, Dolby Digital EX, DTS, DTS ES, DTS 96/24|
|High Definition Audio Bitstream||Dolby Digital Plus, Dolby TrueHD, DTS-HD Master Audio, DTS-HD High Resolution, DTS Express|
|Optical/Coaxial||2Ch Linear PCM||2ch, 32-96kHz, 16/20/24-bit|
|Multichannel Linear PCM||6ch, 32-96Hz, 16/20/24-bit|
|Bitstream||Dolby Digital, DTS, DTS ES, DTS 96/24|
Immersive Surround Sound: The Yamaha RX-A670 AV receiver goes beyond regular surround with the latest immersive surround sound formats, including Dolby Atmos & DTS:X.
Post Decoding Formats: The Yamaha AV receiver supports Dolby Surround, Neural:X, and DTS Neo:6 (Music/Cinema) to enhance 2-channel and multichannel decoding formats.
Cinema DSP 3D: The actually measured soundfield data in recorded soundtracks contain the information of the height of the sound images. Cinema DSP 3D mode achieves the reproduction of the accurate height of theses sound images so that it can create the accurate and intensive stereoscopic soundfield in your listening room. Yamaha Cinema DSP 3D lets you enjoy your movies and music even more in your home; regardless if you are using 5.1 speaker setup, only have a two-channel speaker system, or listening through headphones.
Cinema DSP Soundfields: Conventional multichannel audio reproduction systems base their sound on Dolby Digital and DTS decoding, using matrix and steering technologies to create surround sound effects. Yamaha Cinema DSP is much more advanced, actually creating richly realized independent soundfields that envelop you in an unmatched surround sound experience. With dialog, music and effects ideally located in these separate soundfields, you will hear sound with accurate placement, smooth movement, exceptional clarity and richness, and realistic presence. It will seem as if the walls of your room have disappeared and you are in the middle of your own immense theater. The AV receiver offers 17 Cinema DSP programs for movies, music, and games.
Note: You can change the receiver's Cinema DSP effect level (level of the soundfield effect to be added). You can adjust the level of the soundfield effect from -6 dB to +3 dB.
HiFi Sound Modes: The Yamaha RX-A670 offers two HiFi audio modes which bypass the receiver's tone & DSP processing for higher sound quality performance. These HiFi sound modes lets you play back input sources without any soundfield effect processing. When either of theses modes are enabled, each speaker produces its own channel audio signal (without soundfield processing). When playing back 2-channel sources, such as a CD player, stereo sound is heard from the front speakers. When playing back multichannel sources, the receiver produces unprocessed multichannel surround sound.
Compressed Music Enhancer: Yamaha employs sophisticated digital signal processing with exclusive algorithms to enable playback that improves the performance of compressed music formats, including MP3, WMA, AAC, & Bluetooth (SBC/AAC). The Yamaha receiver's Compressed Music Enhancer feature is even optimized for Bluetooth wireless audio streaming. With the Compressed Music Enhancer, highs and especially lows are richer and smoother, bringing music back to life to be as close to the original as possible.
Dialogue Level & Lift: Dialogue Level Adjustment lets you control the volume of the vocal sound, so you hear movie dialog and music vocals at the ideal level for clear, comfortable listening. Dialogue Lift adjust the perceived height of dialogue sounds. If the dialogue sounds as if it in coming from below the TV screen, you can raise its perceived height by increasing this setting.
Dynamic Range Control: The Yamaha RX-A670 employs two Dynamic Range Control functions.
Bass Management: The Yamaha RX-A670 AV receiver provides the following Bass Management settings.
Volume Setup: The Yamaha RX-A670 allows you to customize the receiver's volume levels.
Audio Outputs: The Yamaha RX-A670 AV receiver is fitted with binding-post speaker terminals and dual mono-sub/LFE outputs, along with a front-panel headphone jack.
Front-Panel Aux Input: The RX-A670 features a front-panel Aux input (3.5mm) for connecting your portable audio player with a headphone output.
HDMI 2.0a: The Yamaha RX-A670 AV receiver is fitted with four HDMI 2.0a inputs and one HDMI 2.0a output that support the latest HDMI standards; such as 4K/60Hz, HDCP 2.2, 4:4:4 color subsampling, HDR (High Dynamic Range), and Wide Color Gamut (BT.2020) for full support of today's 4K content from Ultra HD Blu-ray, online video services (like Amazon & Netflix), and future TV broadcast services.
Note: Use a premium high-speed 18Gbps HDMI cable for the best 4K/HDR performance.
HDR (High Dynamic Range): The Yamaha RX-A670 support HDR (high dynamic range) Video - including HDR 10, Dolby Vision, and Hybrid Log-Gamma. HDR (High Dynamic Range Video) provides enhanced picture quality by simultaneously enabling greater detail for both the dark and bright parts of an image. HDR reproduces a greater dynamic range of luminosity or brightness levels, creating greater contrast. This increased contrast reveals the subtle nuances of the image, from detailed blacks and shadows to the brightest whites and colors, plus greater depth.
Note: Dolby Vision and Hybrid Log-Gamma will be available via future firmware update (no eta).
HDMI Video Upscaling (up to 4K): The Yamaha AV receiver's video processor provides upscaling of 1080p HDMI video sources to 4K Ultra HD (3840x2160 pixels). The receiver does not offer analog-to-HDMI upconversion.
Other HDMI Features: The Yamaha RX-A670 AV receiver's HDMI connectivity also offers 3D video pass-through, ARC (Audio Return Channel), Deep Color & x.v.Color support, as well as an auto LipSync function.
Composite Video: The receiver features three composite video inputs and one composite video monitor output. These composite video jacks only support 480i video. The composite video inputs must be output via the composite video monitor output (there is no HDMI upconversion).
Background Audio/Video: The Background Video feature allows you to watch a video source while listening to a different audio source. Select any video input (HDMI or analog), and listen to audio from the AM/FM tuner, USB, Network, or Bluetooth.
Wired or Wireless Network Connection: The Yamaha AV receiver is fitted with a RJ-45 Ethernet (LAN) port to connect the receiver to your home network. The unit also offers built-in WiFi (IEEE 802.11 b/g/n; 2.4GHz) for a wireless network connection; WPS, WEP, WPA-PSK (TKIP), WPA-PSK (AES), WPA2-PSK (AES) security protection is supported. Either network connection gives the receiver access to your DLNA music server, AirPlay, MusicCast, and various online music services. Wireless network setup can be done via WPS button, Access Point Scan, Manual Setting, PIN Code, or even through your Apple iOS device (5.0+).
Note: Network setup requires that the receiver be connected to your TV via HDMI for display of the on-screen menu. The receiver's network setup cannot be accessed through its front-panel display.
Online Music Services: The Yamaha RX-A670 offers access to Internet Radio through its built-in Airable by TuneIn, your Spotify Premium account through Spotify Connect on your Apple iOS or Android device, and your Pandora, TIDAL, or Deezer music account through Yamaha's MusicCast app.
DLNA + WiFi Direct: The Yamaha RX-A670 AV receiver supports music streaming from WiFi-enabled devices (via WiFi Direct) and DLNA certified devices (via your home network). Supported music files include - WAV/FLAC/AIFF (up to 192kHz/24-bit), ALAC (up to 96kHz/24-bit), MP3/WMA/AAC (up to 48kHz/320kbps), and DSD (2.8/5.6MHz).
AM/FM Tuner: The Yamaha RX-A670 AV receiver features a built-in AM/FM tuner with manual, seek, and preset tuning. The RX-A670 lets you store up to 40 AM/FM station presets. This can be done manually or automatically (auto-preset tuning). You can set this receiver to automatically match FM broadcast frequencies in stereo, or convert the frequency to monaural for weaker stations. An indoor FM wire antenna and AM loop antenna are included with the receiver.
Web Control: When connected to your network (with Internet connection), you can control the Yamaha AV receiver with the web control screen displayed in your PC's web browser. You'll be able to control functions such as, Power On/Off & Volume. Internet Explorer 9.x, 10.x, 11.x, or Safari 7.x is recommended for web browser.
Firmware Updates: New firmware will be released for the purpose of additional features or product improvements. Firmware updates can be downloaded from the Yamaha website. If this unit is connected to the Internet, the receiver will indicate when a new firmware version is available and you can download the firmware via the network connection. Firmware updates normally take approximately 20 minutes or longer. Check Yamaha's Support Download Site for the most recent firmware updates.
AirPlay: AirPlay lets you stream your favorite songs directly from your Apple iOS (4.3.3+) device or from your iTunes (10.2.2+) library on your Windows PC or Mac computer to the AV receiver, over your home's wireless network connection. From your Apple iOS device you are able to stream stored music on your device, downloaded music apps, and music on your iCloud to the AV receiver. From your Windows or Mac you can stream your stored iTunes music library on your computer to the AV receiver; you can even download Apple's free Remote App onto your compatible iOS device to browse and control playback functions of the music stored in your iTunes music library on your computer that is being streamed to the AV receiver. With AirPlay you also get to see song/artist information and album art via the receiver's on-screen menu (via HDMI).
Built-in Bluetooth: The Yamaha RX-A670 is equipped with built-in Bluetooth (version 2.1+EDR) for wireless communication between Bluetooth-enabled audio source devices, headphones, and speakers. The AV receiver can act as a Bluetooth receiver in order to wirelessly stream music from an audio device, or a Bluetooth transmitter in order to wirelessly stream music to a set of BT-enabled headphones/speakers.
Note: Due to the differences in Bluetooth technology, some Bluetooth enabled devices may be incompatible, function improperly, or may not support all features when used with the Yamaha AV receiver.
USB Port: This AV receiver is equipped with a front-panel USB (type-A) port that allows you to enjoy a variety of music files stored on a USB mass storage class memory device, such as a USB thumbdrive or portable digital audio player (not compatible with USB HDDs). Your USB mass storage class device must be formatted in FAT 16 or FAT32.You can use the receiver's on-screen menu (via HDMI) and remote control to navigate your stored music files on your connected USB memory device. USB portable audio devices that can be charged via USB will be charged when plugged into the AV receiver's USB port (5V/1A); even in standby mode. Compatible music files include:
Note: The receiver's USB port does not support Apple iPod/iPhone/iPad or Android smartphones/tablets.
MusicCast Wireless Multiroom Audio Streaming: This AV receiver supports Yamaha's MusicCast multiroom audio eco-system, which allows you to wirelessly play back a wide variety of audio sources and content in multiple rooms of your home (additional MusicCast products sold separately). MusicCast works with your home's existing WiFi router and Yamaha's free MusicCast App for Apple iOS 9.0+ and Android OS 4.1+. You'll be able to stream the receiver's tuner, inputs, Bluetooth, and network sources to other MusicCast products installed in your home. In addition, you'll be able to stream your MusicCast products' sources to the AV receiver. MusicCast supports the following source content.
- Up to 10 MusicCast devices can be connected to your home's wireless network (802.11 b/g/n; 2.4GHz).
- If you want to install a MusicCast device to a location that is out of range of your wireless router, connect another MusicCast device to the router with a network cable to extend the range ("Extend Mode").
Zone B: Zone B allows the AV receiver to send 2-channel stereo audio to speakers in a second room. The main zone will be limited to 5.1-channel output, while the same source is played back in 2ch stereo in a another room. Zone B always mirrors the audio output in the Main Zone. You can choose for the Main Zone & Zone B to share the same volume setting or have independent volume control. Multichannel sources are mixed down to 2-channels and output to the second listening area.
Note: Zone B does not allow you to play a different source than the main zone.
AV Controller App: Download Yamaha's free AV Controller App on to your Apple (iOS 9.0+) iPod/iPhone/iPad or Android (OS 4.1+) smartphone/tablet and turn your mobile device into a Wi-Fi enabled remote control for the Yamaha AV receiver. Your Apple iOS or Android device must be connected to the same home network as the Yamaha AV receiver.
MusicCast App: The free MusicCast app can be downloaded onto your Apple (iOS 9.0+) iPod/iPhone/iPad and Android (OS 4.1+) smartphones/tablets. The MusicCast app puts control of your whole home listening experience in the palm of your hand from your Apple iOS or Android device. You'll be able to quickly select the room or rooms you want to listen to music in, select the source or sources you want to listen to, browse music content from your music library and online music services or Internet Radio, plus control music playback functions.
AV Setup Guide App: Download Yamaha's AV Setup Guide App onto your Apple (iOS 6.0+) iPad or Android (OS 4.0+) tablet for assistance with connecting cables between the Yamaha AV receiver and your source devices as well as AV receiver setup. This app guides you through various settings including speaker connections, TV and source device connections, plus assigning the power amplifier. Once you have completed the setup guide, settings from this app will automatically be copied to your network-connected AV receiver for quick and easy setup.
Remote Control: The receiver comes with an IR remote control for wireless operation of this receiver and other HDMI-connected sources (via HDMI CEC). This newly designed remote control features large buttons for enhanced ease of use.
HDMI-CEC (Consumer Electronics Control): The Yamaha AV receiver supports HDMI-CEC, which synchronizes the operation of this unit with other HDMI-CEC devices when connected via HDMI. When the AV receiver is connected to a HDMI-CEC compatible TV, they will turn ON/OFF together and you can use the TV remote to control the volume of the receiver. HDMI-CEC also provides playback functionality with other components, such as your Blu-ray player. For example, you can use the receiver's remote control to operate player functions like Play/Pause, Fast Forward/Rewind, Previous/Next Track, or Stop.
Note: Not all HDMI-CEC compatible components and functions are guaranteed to work.
Alexa Compatible (Firmware Update Required): Alexa-enabled devices (including the Amazon Echo, Echo Dot, Tap and Echo Show) will soon be able to control key functions of a MusicCast system using voice commands. A firmware update (available early 2018), will be available for download that allows key functions of MusicCast products to be controlled using your voice through Alexa-enabled devices (sold separately).
Note: You will need an Alexa-enabled device (Amazon Echo, Echo Dot, Tap, or Echo Show - all sold separately) to operate certain functions of your MusicCast products via voice-command. The MusicCast components and the Alex-enabled devices must be on the same network.
On-Screen Menu: The RX-A670 offers an on-screen menu system via its HDMI output. This clean and simple interface makes setup and other operations extremely easy. If your TV is connected to the composite video monitor output, you will need to use the AV receiver's front-panel display when changing settings. You can set the receiver's on-screen menu language to English, French, Spanish, German, Italian, Russian, or Chinese. The front-panel display only offers English.
Note: Initial setup requires that the receiver be connected to your TV via HDMI for display of the on-screen menu. Many of the receiver's setup functions can only be found via the on-screen menu and not the front-panel display.
Scene (for One-Touch Start): The RX-A670 features four Scene buttons on the front-panel and remote to make operating the receiver easier. Pressing a Scene button will automatically launch a number of operations that initiate play of the source controlled by that button; such as powering on the receiver, switching to the appropriate source input, and recalling the selected DSP surround mode.
Gapless Playback: Many live and classical albums have no gaps in the music. Gapless playback ensures that there are no pauses between audio files. This provides playback with no interruptions, the way it was meant to be heard. Compatible with WAV, FLAC, AIFF, and ALAC music files via USB or DLNA.
Favorites: You can register up to 40 favorite USB music files, internet radio stations, and/or other network music content as shortcuts ("Favorites") and access them directly. Only the input source will be registered for Bluetooth and AirPlay.
Input Rename & Skip: The receiver automatically creates an input source name that is displayed on the front-panel screen for connected HDMI-compatible sources. You can also manually rename each input so the display reflects the actual source. If an input isn't being used, you can hide it from the display so you don't have to scroll past it when you change sources.
Display Dimmer: You can set the brightness of the front-panel display from -4 to 0.
ECO Mode: When the ECO Mode is enabled, you can reduce the receiver' power consumption by keeping the maximum volume, maximum output power, and front display's brightness low. ECO mode reduces power consumption by approximately 20%.
Timers: The receiver offers a programmable Sleep Timer and Auto Power Down function.
Memory Guard: This feature is used to prevent accidental changes to the DSP program parameter values and other system settings.
At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.
I always look at Yamaha first, the sound is good enough, and it it familiar. [ al Jul 24, 2017 ]
You will find the details of our price match policy under the "Competitive Pricing" section of our website here: https://www.crutchfield.com/support/guarantees.aspx For additional assistance and personalized recommendations, feel free to contact us directly by phone or through our online chat service: https://www.crutchfield.com/support/ContactUs.aspx [ Ryan Apr 04, 2018 ] Staff
Yes [ ALONZO Mar 17, 2018 ]
The amplification is analog and uses Yamaha's "High Drive Amp Technology". For additional assistance and personalized recommendations, feel free to contact us directly by phone or through our online chat service: https://www.crutchfield.com/support/ContactUs.aspx [ Ryan Feb 28, 2018 ] Staff
I am not sure. I do not understand what the class D or class ab stands for. Sorry. [ Armand Feb 19, 2018 ]