1-on-1 Comparison
Side-by-Side Comparison
Denon AVR-S650H
Denon AVR-S640H
Highlights
- 5.2 channels
- 5.1 channel processing
- 75 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
- HDR10, Dolby Vision, 4K Passthrough
- AirPlay 2, HEOS
- Ethernet, Wi-Fi, Bluetooth
- USB and Phono inputs
Highlights
- 5.2 channels
- 5.1 channel processing
- 75 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven)
- HDR10, Dolby Vision, 4K Passthrough
- AirPlay 2, HEOS
- Ethernet, Wi-Fi, Bluetooth
- USB and Phono inputs
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Content
Overview
Here we are comparing Denon AVR-S650H to Denon AVR-S640H to reveal their common strengths and weaknesses as well as the differences between them which will help you in making a correct decision before the purchase. Both receivers have 5 channel and equally powerful amplifiers.
Advantage of Denon AVR-S650H
This section shows those features and specifications which are the reason to choose Denon AVR-S650H over Denon AVR-S640H.
In video department only Denon AVR-S650H supports HDCP 2.3 copy protection.
Denon AVR-S650H | vs | Denon AVR-S640H | |
---|---|---|---|
Enhanced Audio Return Channel (eARC) | vs | ||
Newer HDCP Version | 2.3 | vs | 2.2 |
Bluetooth Headphone Transmission | vs |
Advantage of Denon AVR-S640H
This section shows those features and specifications which are the reason to choose Denon AVR-S640H over Denon AVR-S650H.
Denon AVR-S650H | vs | Denon AVR-S640H | |
---|---|---|---|
Dolby Pro Logic | PLII | vs | PLII |
Common Strengths and Weaknesses
Here we list common strengths and weaknesses of both receivers.
STRENGTHS |
---|
Auto Speaker Calibration System with Mic. |
New HDCP Version |
HDR10 |
Dolby Vision |
Auto Low Latency Mode Pass-through |
4K or 8K Video Passthrough |
HEOS |
Works with Amazon Alexa |
Ethernet |
Wi-Fi |
Bluetooth |
USB Input |
Many Optical Inputs |
Composite Video Inputs |
Zones |
Analog Tuner |
Pandora |
Spotify |
Tidal |
WEAKNESSES |
---|
5.1 Channel Processing |
No Dolby Atmos |
No Dolby Atmos Height Virtualization |
No DTS:X |
No IMAX Enhanced |
No Auro 3D with Auro-Matic Upmixer |
No DSD via HDMI |
No HDR10+ |
No 4K or 8K Video Upscaling |
No Chromecast Built-In |
Few HDMI Outputs |
Few 8K Inputs |
Few RCA Line Inputs |
No RCA Pre-Outs |
Old Bluetooth Version |
Audio Section
Amplifier
Denon AVR-S650H | Denon AVR-S640H |
---|---|
5 channel Amplifier: Denon AVR-S650H features 5 channel power amplifier. It is rated at 75 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven) and is able to drive 4 ohm speakers. |
5 channel Amplifier: Denon AVR-S640H features 5 channel power amplifier. It is rated at 75 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven) and is able to drive 4 ohm speakers. |
Speaker Configurations
Denon AVR-S650H's and Denon AVR-S640H's amplifiers can be assigned for different speaker configurations.
- Configurations: Available configurations are:
- Denon AVR-S650H: 5.2 with internal amplifier.
- Denon AVR-S640H: 5.2 with internal amplifier.
- Audyssey: Both receivers come with Audyssey Dynamic EQ and Dynamic Volume.
- Dynamic EQ: selects the best possible frequency response and surround volume levels moment-by-moment. This ensures that the bass response, tonal balance and surround impression remain constant despite changes in volume. This is the first technology that carefully combines information from incoming source levels with actual output sound levels in the room, a pre-requisite for delivering a dynamic volume solution.
- Dynamic Volume: Your Listening experience can be greatly diminished when there are significant shifts in volume between television programs, commercials and within the program material itself. When this happens you must constantly adjust the volume to maintain your desired listening level. Audyssey Dynamic Volume monitors the volume of program material moment-by-moment and automatically adjusts it, maintaining the desired listening level for all content while optimizing the dynamic range to preserve impact.
- Compressed Music Enhancer: Denon AVR-S650H and Denon AVR-S640H feature Compressed Music Enhancer which enhances the quality of the music files with lossy compression.
- Audyssey Room Calibration: Audyssey is an acoustic measurement technology which automatically restores the acoustic distortion caused by the acoustic behaviour of a room with only a push on a button. Audyssey equalization provides an clear, accurate, natural sound with voices and dialog that become focused and intelligible, restoring the musical balance. Musical instruments and sound effects become precisely localized and the surround soundstage is made seamless and enveloping.
Enhanced Audio Return Channel (eARC)
Denon AVR-S650H supports Audio Return Channel (ARC) feature allows the compatible TV to send audio signal to the a/v receiver through the same HDMI cable which is used to send audio and video signals to the TV. So one HDMI cable is used to transfer audio signal in both directions. New Enhanced ARC will support uncompressed audio formats such as Dolby Atmos, DTS:X, Dolby TrueHD and DTS HD Master Audio whereas the previous ARC could support only Dolby Digital, Dolby Digital Plus, DTS, DTS HD, and PCM.
Sound Processing
Room Calibration
Denon AVR-S650H and Denon AVR-S640H come with Audyssey MultEQ room correction system.
Video Section
HDMI
Denon AVR-S650H and Denon AVR-S640H come with 5 HDMI inputs. It has 1 output.
- 4K/60Hz Passthrough: On both receivers all inputs pass up to 4K 50/60Hz 4:4:4 video signal.
- BT.2020 Color Space: BT.2020 or Rec. 2020 is a color standard which delivers a wider color gamut compared to Rec. 709. It covers approximately 75% of the total visual spectrum while the Rec. 709 covers only 35% (available on both models).
- HDCP Copy Protection: Denon AVR-S650H is HDCP 2.3 and Denon AVR-S640H is HDCP 2.2 compliant which is a requirement for 4K/HDR copy-protected content transmission.
- 3D Ready: Both receivers are able to pass 3D video through HDMI.
HDR (High Dynamic Range)
Both receivers support HDR10, Dolby Vision and Hybrid Log-Gamma.
High dynamic range video has greater dynamic range than standard dynamic range (SDR) video with brighter whites and deeper blacks. The result is greater contrast and more details in dark and bright areas, better color and depth.
- HDR10: HDR10 uses the wide-gamut Rec. 2020 color space. It sends static metadata via video stream to the TV which calibrates its screen brightness and color according to that. HDR10 supports 10-bit color which corresponds to 1024 shades of the primary RGB colors. It is technically limited to a maximum of 10,000 nits peak brightness, however common HDR10 contents are mastered with peak brightness from 1,000 to 4,000 nits.
- Dolby Vision: Dolby Vision is a set of technologies developed by Dolby Laboratories for high dynamic range (HDR) video. It covers content creation, distribution, and playback. Like HDR10+, it includes dynamic metadata that are used to adjust and optimize each frame of the HDR video to the consumer display's capabilities in a way specified by the content creator. Dolby Vision allows for a maximum resolution of 8K up to 12-bit color depth, maximum peak brightness of 10,000 nits and a color gamut up to Rec. 2020. It uses Dolby's proprietary dynamic metadata defined in SMPTE ST 2094-10.
- Hybrid Log-Gamma (HLG): The Hybrid Log-Gamma (HLG) is a transfer function developed mainly for HDR live video feed and over-the-air broadcasts. It is an HDR format that uses BT.2020 color primaries and a bitdepth of 10-bit. It is backward compatible with the transfer function of SDR and is designed to be better-suited for television broadcasting, where the metadata required for other HDR formats is not backward compatible with non-HDR displays. HLG defines a non-linear optical-electro transfer function, in which the lower half of the signal values use a gamma curve and the upper half of the signal values use a logarithmic curve.
Gaming Features
Both receivers support Auto Low Latency Mode (ALLM) for lag-free and smooth gaming.
- Auto Low Latency Mode (ALLM): Auto Low Latency Mode enables the ideal latency setting to automatically be set allowing for smooth, lag-free and uninterrupted viewing and interactivity. When the receiver detects a gaming signal it will enter ALLM. The signal will also be sent to the TV causing it to automatically switch to a low-latency, low-lag mode for gaming. Some functions will not be available on the receiver and TV during ALLM.
Inputs and Outputs
Audio
- Analog Line Inputs: There are 2 pair of line inputs on both receivers for connecting sources with analog outputs.
- Digital Inputs and Outputs: 1 optical input, 2 optical outputs and 1 coaxial input are available for digital audio connections on both receivers.
- Headphone Output: There is a 6.3 mm (1/4") headphone output jack on the front panel of each receiver.
Video
- HDMI:
- Denon AVR-S650H
Inputs: 5 Outputs: 1
8K Inputs: 0. - Denon AVR-S640H
Inputs: 5 Outputs: 1
8K Inputs: 0. - Composite Video: Connect you VCR, Laserdisc player and other old video equipment with composite video cables.
- Denon AVR-S650H
Inputs: 2 Outputs: 1. - Denon AVR-S640H
Inputs: 2 Outputs: 1.
Front A/V Inputs
- Denon AVR-S650H: USB
- Denon AVR-S640H: USB
Denon AVR-S650H
Denon AVR-S640H
Specifications
And in the end let us list all the available specifications of the receivers side-by-side.
BASICS | Denon AVR-S650H | Denon AVR-S640H |
---|---|---|
Brand | Denon | Denon |
Model | AVR-S650H | AVR-S640H |
Type | A/V Receiver | A/V Receiver |
Country | USA | USA |
Release Year | 2019 | 2018 |
AMPLIFIER | Denon AVR-S650H | Denon AVR-S640H |
---|---|---|
Channels | 5.2 | 5.2 |
Front Wide Channel Support | ||
Discrete Amplification | ||
THX™ Certification | ||
Continuous 6 Ω Rated | ||
Certified 4 Ω Performance | ||
Mono Block Power Amplifier Construction | ||
Bi-amp Capability |
AUDIO | Denon AVR-S650H | Denon AVR-S640H |
---|---|---|
DAC Specs | 192 kHz/24 Bit | |
Maximum Channel Processing | 5.1 | 5.1 |
D.D.S.C. HD Digital | ||
Alpha Processing | ||
Air Studios Monitor Certification | ||
Dolby Atmos | ||
Dolby Atmos Height Virtualization | ||
Dolby Atmos Music | ||
Dolby TrueHD | ||
Dolby Digital Plus | ||
Dolby Surround Upmixer | ||
Dolby Pro Logic | PLII | PLII |
Dolby Digital EX | ||
Surround EX | ||
DTS:X | ||
DTS Neural:X | ||
DTS Virtual:X | ||
DTS Neo | Neo:6 | Neo:6 |
DTS-HD Master Audio | ||
DTS-HD High Resolution Audio | ||
DTS 96/24 | ||
DTS Express | ||
DTS-ES | ||
IMAX Enhanced | ||
Auro 3D with Auro-Matic Upmixer | ||
PCM | 2-ch/Multi-ch Input | 2-ch/Multi-ch Input |
Music Playback via USB | MP3, WMA, AAC, Apple Lossless, WAV, FLAC, DSD | MP3, WMA, AAC, Apple Lossless, WAV, FLAC, DSD |
High Resolution Music Playback via USB and/or Network | up to 192 kHz | up to 192 kHz |
High Resolution Audio Formats via USB | Apple Lossless, WAV, FLAC, DSD | Apple Lossless, WAV, FLAC, DSD |
Gapless Playback | ||
DSD via HDMI | ||
DSD via USB | 2-ch Input | 2-ch Input |
DSD to PCM Converter | ||
USB DAC | ||
Jitter Reduction | ||
DTS Dialog Control | ||
Dialog Enhancement | ||
Dialog Level Adjustment | ||
Dialog Normalization | ||
Dialogue Lift | ||
Compressed Music Enhancer | ||
High-resolution Music Enhancer | ||
Audyssey Dynamic EQ | ||
Audyssey Dynamic Volume | ||
Audyssey LFC | ||
Audyssey Sub EQ HT | ||
Audyssey DSX | ||
Direct Mode | ||
Pure Direct Mode | ||
Independent Subwoofer Outputs |
CALIBRATION | Denon AVR-S650H | Denon AVR-S640H |
---|---|---|
Auto Speaker Calibration System with Mic. | Audyssey MultEQ | Audyssey MultEQ |
Optimized Bass Redirection | ||
Bass Sync |
VIDEO | Denon AVR-S650H | Denon AVR-S640H |
---|---|---|
Enhanced ARC | ||
HDCP Version | 2.3 | 2.2 |
HDR10 | ||
HDR10+ | ||
Dynamic HDR | ||
Dolby Vision | ||
HLG (Hybrid Log Gamma) | ||
BT.2020 color space | ||
QMS (Quick Media Switching) | ||
ALLM (Auto Low Latency Mode) | ||
VRR (Variable Refresh Rate) | ||
QFT (Quick Frame transport) | ||
3-D Ready | ||
Video Signal Passthrough | up to 4K 50/60Hz 4:4:4 | up to 4K 50/60Hz 4:4:4 |
Video Signal Upscaling | ||
Analog To HDMI Upconversion | ||
Component Video Upscaling | ||
Analog to Analog Video conversion | ||
isf Certified Calibration Control |
CONNECTIVITY | Denon AVR-S650H | Denon AVR-S640H |
---|---|---|
MHL Input | ||
FireConnect | ||
FlareConnect | ||
HEOS | ||
Chromecast Built-In | ||
DTS Play-Fi | ||
Works with Amazon Alexa | ||
Google assistant | ||
Apple Siri | ||
Works with SONOS | ||
AirPlay | AirPlay 2 | AirPlay 2 |
Apple Product Connection | iPod, iPhone and iPad | iPod, iPhone and iPad |
Remote App | Denon 2016 AVR Remote App for iOS and Android devices and Kindle Fire | Denon 2016 AVR Remote App for iOS and Android devices and Kindle Fire |
InstaPrevue Input Source Prevue | ||
Ethernet | ||
Ethernet Switch | ||
Wi-Fi | ||
Bluetooth | SBC | SBC |
Bluetooth Headphone Transmission | ||
HDBaseT Compatible | ||
HDMI Inputs | 5 | 5 |
HDMI Outputs | 1 | 1 |
8K Inputs | ||
USB Input | 1 Front for USB memory | 1 Front for USB memory |
USB DC Out Port | ||
RCA Line Input | 2 | 2 |
RCA Line Output | ||
XLR Line Inputs | ||
Phono Input | ||
Optical Inputs | 2 | 2 |
Optical Outputs | ||
Coaxial Inputs | 1 | 1 |
Composite Video Input | 2 | 2 |
Composite Video Output | 1 | 1 |
S-Video Input | ||
S-Video Output | ||
Component Video Input | ||
Component Video Output | ||
PC In | ||
Multi-Channel Input | ||
RCA Pre-Outs | 0.2 | 0.2 |
XLR Pre-outs | ||
Front A/V Inputs | USB | USB |
Speaker A/B | ||
Headphone Out | 6.3 mm (1/4") | 6.3 mm (1/4") |
ZONES | Denon AVR-S650H | Denon AVR-S640H |
---|---|---|
Zones | 1 | 1 |
RS-232C Interface | ||
+12V Trigger Output | ||
Remote (IR) Input/Output | 0 / 0 | 0 / 0 |
MISC | Denon AVR-S650H | Denon AVR-S640H |
---|---|---|
On-Screen Display | Hybrid Graphic User Interface | Hybrid Graphic User Interface |
GUI Languages | 3 | 3 |
Web Browser Control | ||
IP Control for CI | ||
Control4 SDDP | ||
Display | 1 line | 1 line |
Remote Controller | RC-1226 | RC-1226 |
Pre-programmed / Learnable / LCD Display | / / | / / |
Detachable Power Cord | ||
Denon Link HD | ||
Setup Assistant | ||
Quick Select plus / Quick Select | / | / |
RADIO | Denon AVR-S650H | Denon AVR-S640H |
---|---|---|
Analog Tuner | FM/AM | FM/AM |
Digital Radio | ||
Internet Radio | TuneIn | TuneIn |
Pandora | ||
Spotify | ||
Tidal | ||
Deezer | ||
Napster | ||
SiriusXM Internet Radio |
CONSTRUCTION | Denon AVR-S650H | Denon AVR-S640H |
---|---|---|
Front Panel | not Metal | not Metal |
Speaker Terminals | 5 | 5 |
Large Speaker Terminals | 5 | 5 |
Color-Coded Speaker Terminals | ||
Transparent High-Grade Speaker Terminals | ||
High Grade Audio Components | ||
Gold plated RCA terminals |
POWER | Denon AVR-S650H | Denon AVR-S640H |
---|---|---|
Power Supply | AC 120 V, 60 Hz | AC 120 V, 60 Hz |
Power Consumption | 340 W | 340 W |
No Sound Power | ECO On/Off: 29 W/39 W | |
Standby Power | 0.1 W | 0.1 W |
GENERAL | Denon AVR-S650H | Denon AVR-S640H |
---|---|---|
ECO Mode / Hybrid Standby Function | ||
Auto Power off | ||
Dimensions (W x H x D) | 434 mm x 151 mm x 339 mm (with antenna: 434 mm x 215 mm x 339 mm) 17 1/8" x 6" x 13 3/8" (with antenna: 17 1/8" x 8 1/2" x 13 3/8") | 434 mm x 151 mm x 339 mm (with antenna: 434 mm x 215 mm x 339 mm) 17 1/8" x 6" x 13 3/8" (with antenna: 17 1/8" x 8 1/2" x 13 3/8") |
Weight | 7.8 kg (17 lbs 3 oz) | 7.8 kg (17 lbs 3 oz) |
Warranty | 3 Years | 3 Years |
SPECS | Denon AVR-S650H | Denon AVR-S640H |
---|---|---|
Power Output (8 Ω, 20 Hz - 20 kHz, 2 | 75 W (0.08% THD) | 75 W (0.08% THD) |
Power Output (6 Ω, 1 kHz, 2 | 100 W (0.7% THD) | 100 W (0.7% THD) |
Maximum Effective Power Output (6 Ω, 1 kHz, 1 channel driven, JEITA) | 150 W (10% THD) | 150 W (10% THD) |
Rated Power Output (6 Ω, 1 kHz, 1 channel driven, IEC) | 135 W (1% THD) | |
Phono Distortion | 0.03% (1 kHz, 3 V) | 0.03% (1 kHz, 3 V) |
Input Sensitivity and Impedance (Line) | 200 mV/47 kΩ | 200 mV/47 kΩ |
Input Sensitivity and Impedance (Phono MM) | 2.5 mV | 2.5 mV |
S/N Ratio (Line, IHF-A) | 98 dB | 98 dB |
S/N Ratio (Phono MM, IHF-A) | 74 dB | 74 dB |
Phono RIAA Deviation | ±1 dB (20-20 kHz) | ±1 dB (20-20 kHz) |
Frequency Response (Analog In) | +1/-3 dB (10 Hz to 100 kHz, Direct mode) | +1/-3 dB (10 Hz to 100 kHz, Direct mode) |
DSD Sampling Rates via USB | 5.6 MHz, 2.8 MHz | 5.6 MHz, 2.8 MHz |
Video Input Sensitivity/Output Level and Impedance | 1 Vp-p/75 Ω (Composite) | 1 Vp-p/75 Ω (Composite) |
Video Frequency Response | 5 Hz to 10 MHz, 0 dB/-3 dB (Composite) | 5 Hz to 10 MHz, 0 dB/-3 dB (Composite) |
Ethernet Standard | 100BASE-TX | 100BASE-TX |
Wi-Fi Standard | IEEE 802.11 a/b/g/n | IEEE 802.11 a/b/g/n |
Wi-Fi Terminal Frequency | 5 GHz, 2.4 GHz | 5 GHz, 2.4 GHz |
Bluetooth Version | 3․0 + EDR | 3․0 + EDR |
Bluetooth Frequency | 2.4 GHz | 2.4 GHz |
USB Terminal | USB2.0 5V, 1 A | USB2.0 5V, 1 A |
FM Frequency | 87.5 MHz - 107.9 MHz | 87.5 MHz - 107.9 MHz |
FM 50 dB Quiet Sensitivity (IHF, 1 kHz, 100% MOD.) | Mono: 2.8 µV (20.2 dBf) | Mono: 2.8 µV (20.2 dBf) |
FM Effective Sensitivity | 1.2 µV (12.8 dBf) | 1.2 µV (12.8 dBf) |
FM S/N Ratio | Mono/Stereo: 70 dB/67 dB | Mono/Stereo: 70 dB/67 dB |
FM Harmonic Distortion (IHF, 1 kHz) | Mono/Stereo: 0.7%/1.0% | Mono/Stereo: 0.7%/1.0% |
AM Frequency | 520 kHz - 1710 kHz | 520 kHz - 1710 kHz |
AM Effective Sensitivity | 18 µV | 18 µV |
* - 480i/576i and 480p/576p only
** - 480i/576i only
*** - no 1080p/24 upconversion
**** - 1080p signal is not converted