The 5.2 channel Denon AVR-S640H features Dolby Vision™, HDR, HLG and 4K video pass-thru and HDMI 5 in/1 out. HEOS technology lets you stream Spotify®, Pandora®, Tidal and more wirelessly throughout the home. Control the AVR hands-free with Amazon Alexa voice control and with our award-winning Denon Setup Assistant, the Denon AVR-S640H is just as easy to setup as it is to enjoy.
*Sold exclusively within the US only. No shipments allowed outside the US!
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High-Performance 5 Channel Discrete Amplifier with Eco Mode
Featuring discrete high-current power amplifiers on all channels, the AVR-S640H delivers maximum performance and 75 watts of power per channel . With low impedance driver capability, it offers operational stability with a wide range of speakers for balanced, quality sound.
GET THE AMAZING HEOS EXPERIENCE.
Enjoy your favorite music in any room of your home wirelessly with built-in HEOS technology. Play the same song in every room, or select a different song for each connected room — the choice is yours. Also works with Amazon Alexa providing cutting-edge voice control and incredible sound for all of your home entertainment–or control it all with the free HEOS app.
Stream music stored on your home network–connect to HEOS wireless speakers or even other HEOS-enabled receivers and listen throughout the whole house. Enjoy music from TuneIn, Internet Radio, Pandora®, Spotify®, Amazon Prime Music, iHeartRadio, SiriusXM, Soundcloud®, Tidal, Napster or Deezer.
AMAZON ALEXA VOICE CONTROL
Control the AVR hands-free with Amazon Alexa and your voice. Adjust the volume, skip to the next track, switch inputs for your different media players and more — “Just Ask.” Download the HEOS Home Entertainment Skill to enable Amazon Alexa voice commands for your AVR-S640H, HEOS devices and other select Denon products. *Availability varies per region and country
GEARED UP FOR 4K ULTRA HD.
Enjoy your favorite movies, shows and games with the best picture quality available.
ADVANCED VIDEO SECTION
HDR / DOLBY VISION
BREATH NEW LIFE INTO LEGACY SOURCES.
The AVR-S640H features five HDMI inputs and one output — including one input on the front panel — that support full 4K Ultra HD, HDR (High Dynamic Range), BT.2020, Wide Color Gamut and 4:4:4 Pure Color sub-sampling. Dolby Vision compatibility and HLG (Hybrid Log-Gamma) provide exceptional brightness, contrast and color, and HDCP 2.2 processing lets you enjoy copy-protected content uninhibited.
CUSTOMIZED SOUND FOR ANY ROOM
Every room has its own characteristics and acoustical anomalies. That's why we equipped the AVR-S640H with Audyssey MultEQ. With the supplied measuring microphone, it exactly measures all the speakers in your home theater during setup, and then provides the smoothest most optimal overall listening experience. Audyssey Dynamic Volume and Audyssey Dynamic EQ smooths out annoying jumps in volume (such as TV commercials), letting you listen at lower levels and still enjoy clear dialogue, music and sound effects and precision tonal tailoring for full range clarity at any listening level.
SMART TV CONNECTIVITY
>Control the Denon AVR-S640H with your Smart TV remote via the HDMI CEC functionality associated with your Smart TV. Simply set “HDMI Control” to ON in your receiver, then set “Smart Menu” to ON and begin controlling the AVR-S640H with your TV remote. The Smart Menu home screen provides you quick access to source and surround mode selections, the AVR's setup menu and four Smart Selects.
BUILT-IN BLUETOOTH, WI-FI AND AIRPLAY CAPABILITY
The heart of your wireless network. With Bluetooth and Wi-Fi wireless streaming connectivity, the Denon AVR-S640H is equipped with an advanced dual antenna transceiver system for robust streaming even in congested urban environments. Enjoy listening to your favorite audio content wirelessly from your smart devices.
DENON AVR REMOTE APPFOR SEAMLESS CONTROL
Better control in your back pocket. The Denon AVR Remote app for iOS and Android makes using the AVR-S640H even easier — adjust volume, turn it on or off, mute the music, select a source or switch to HEOS. Download the Denon AVR Remote app to your smartphone today.
QUICK SELECTS FOR USER-FRIENDLY AUDIO TUNING
The Denon AVR-S640H front panel features four Quick Select buttons that store your preferred audio settings for each source. Switch between TV audio, Blu-Ray, media players and more–and the AVR-S640H adjusts the EQ settings to your preferences for that media source. Use the buttons on the front panel or opt for the same Quick Selects on the AVR remote for faster control.
FRONT USB PORT FOR HIGH-RESOLUTION AUDIO
Discover the incredible fidelity of high-resolution audio tracks with the ability to decode up to 24-bit/192-kHz ALAC, FLAC and WAV lossless files as well as DSD 2.8MHz and 5.6MHz tracks (the audiophile format of SACD) via the front panel USB port and network sources. Also listen to other popular file types such as MP3. Whether you want to listen to your latest download or soak in the fidelity of audiophile-quality FLAC recordings, you always have quick access to your favorite songs.
| Amplification | |
| Number Of Channels | 5 |
| Stereo RMS Power (watts) | 75 |
| THD in Stereo | 0.08% |
| Frequency Bandwidth (stereo) | 20-20k Hz |
| Minimum Impedance L/R | 4 ohms |
| Minimum Impedance Center | 4 ohms |
| Minimum Impedance Surround | 4 ohms |
| General Features | |
| Internet-ready | Yes |
| Bluetooth | Built-in |
| Apple AirPlay | 2 (firmware update |
| Chromecast built-in | No |
| DTS Play-Fi | No |
| App Remote Control | Yes |
| USB port for iPod/iPhone | No |
| FM Sensitivity | 12.8 dBf |
| HD Radio Tuner | No |
| On-Screen Display | Thru HDMI |
| Auto Speaker Calibration | Audyssey MultEQ |
| HDCP 2.2 for 4K Video | Yes |
| HDR-compatible | HDR10, Dolby Vision, HLG |
| HDMI Standby Pass-through | Yes |
| 4K Video Upscaling | No |
| HDMI to HDMI Upconversion | No |
| DLNA Certified | |
| MHL-compatible | No |
| Multibrand Remote Control | No |
| Learning Remote | No |
| LCD Remote | |
| Width (inches) | 17-3/16 |
| Height (inches) | 5-5/16 |
| Depth (inches) | 13-7/16 |
| Weight (pounds) | 17.2 |
| Multi-room Audio--Video | |
| Powered Multi-room Audio Output | No |
| Preamp Multi-room Audio Output | No |
| Multi-room HDMI Output | No |
| Surround Processing | |
| Dolby Digital | DD, TrueHD, DD+ |
| Dolby Atmos | No |
| DTS | DTS, HD, HDMA, 96/24 |
| DTS:X | No |
| Inputs & Outputs | |
| Phono Input | 1 |
| Audio-Video Inputs | 5 |
| Audio-only Inputs | 3 |
| Component Video Inputs | None |
| Component Video Monitor Outputs | None |
| Optical Digital Inputs | 2 |
| Coaxial Digital Inputs | 1 |
| Optical Digital Outputs | None |
| Coaxial Digital Outputs | None |
| HDMI Inputs | 5 |
| HDMI Monitor Outputs | 1 |
| Subwoofer Outputs | 2 |
| Discrete Subwoofer Outputs | No |
| Multi-Channel Analog Input | No |
| Multi-channel Preamp Output | No |
| Main Speaker Output Pairs | 1 |
| Main Speaker Terminals | Posts |
| Ethernet Port | Yes |
| USB Connections | 1 Front |
| Removable Power Cord | No |
Buying a Denon Factory Refurbished product is a great way to get "as-new" products at a considerable savings. Every product has been thoroughly tested, repaired (if necessary), cleaned and otherwise renewed to original condition. Next it's repackaged with original accessories included. When you consider that a factory-renewed Denon product undergoes such close scrutiny for defects and workmanship, you might actually be buying something that is in many ways better than new. And for your piece of mind and protection, your purchase is covered by a full 1 year parts and labor warranty valid at any authorized Denon repair center (you can look-up locations online here or call 800-497-8921)
Denon, like all electronics manufactures, receives products returned for various reasons. In 2023 consumers returned 23 billion dollars in electronics globally, of which less than 5% were found to be defective! Once a product has been opened, it must be resold as refurbished or open box and cannot be resold as new again. The history and reason why a product was returned is not provided to us, thus we cannot provide any additional details regarding its past. All products are processed by Denon certified technicians, where they are fully tested, repaired (only if necessary), and retested again to ensure the highest quality control. Each unit must pass a complete battery of test before it can be titled a "Denon Factory Refurbished" product.
Most (not all) units are cosmetically in Mint Condition (graded a 9 or higher on a scale of 1-10). Very minor signs of wear (light surface scuffs or minor scratches) may be present, although most units show little or no signs of any usage. We DO NOT sell products that are cosmetically damaged (cracked displays, broken knobs, heavy scratches, or physically abused) unless noted in the description. Unfortunately, we cannot provide actual photos of each unit or pick the best one for anyone, as they are all randomly chosen from our factory sealed boxes.
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