Design

Any house configuration would match the elegant, sophisticated style of the Denon AVR-X3700H. Its front panel is simple yet elegant and has a black brushed metal finish that feels quality. The buttons on the clear, neat display are simple to use. The huge volume knob is one item that strikes out as feeling substantial and smooth when turned. Users like its strong and well-made quality; it does not seem cheap and has reasonable weight. But in bright settings, some customers have discovered that the front display may be somewhat dark, which makes seeing the text difficult unless you are close by. Particularly if you're not tech-savvy, the remote is also quite messy and has too many buttons, which could be daunting. Still, the design becomes really useful once you get accustomed to it.

Like its younger relative, the Denon AVR-X3600H also has a strong design. It seems just as upscale with the same elegant black finish and strong construction. The front panel arrangement is almost the same, and the huge volume knob offers the same gratifying sensation. Though the overall appearance doesn't scream for attention, the unit's haptic and snappy buttons complement other AV components well. Users have observed, however, that the AVR-X3600H seems a little less polished than the more recent model. The display is also rather outdated; some users believe it needs more information at a glance, particularly during setup or while making changes. Another issue is the remote; while it's functional, it feels fairly cheap and the button arrangement isn't as clear as some would like. Though their styles are similar, the AVR-X3700H edges out somewhat with a more elegant, contemporary appearance.

Connectivity

The AVR-X3700H excels, especially in connectivity. Supporting the newest HDMI 2.1 capabilities, including 8K/60Hz and 4K/120Hz pass-through, it offers 7 HDMI inputs and 3 HDMI outputs. For those who desire the newest in visual quality— gamers and movie buffs—this makes it a great option. The HDMI ports also enable HDCP 2.3, therefore relieving you of concerns over Blu-ray player or streaming device compatibility. From smart TVs to game consoles, users have found it simple to link all of their gadgets. Plus streaming music from your phone or tablet is simple with built-in Wi-Fi, Bluetooth, and Apple AirPlay 2. Though particularly when installing many devices, some customers have had problems with the initial configuration. Sometimes people complain about HDMI handshaking problems, wherein the receiver fails to instantly identify the attached device and calls for some wire juggling.

With eight HDMI inputs and three outputs, the AVR-X3600H also provides a first-rate connection. Although still excellent for most installations, 4K Ultra HD 60Hz video is not nearly as future-proof as the 8K capabilities of the AVR-X3700H. The connection options: Wi-Fi, Bluetooth, and AirPlay 2 cover most bases; setup is often easy. The AVR-X3600H has drawn compliments from users for its consistent performance and simplicity of connecting many devices—including older ones—without any hassle. Like the AVR-X3700H, some consumers have seen sporadic HDMI handshake problems, nonetheless. Though they're not deal-breakers, they may be annoying, particularly if you want to get your system running right away. Gamers seeking the finest refresh rates and quality may feel a little constrained without HDMI 2.1. Though the AVR-X3600H still is a dependable option, the AVR-X3700H wins for its HDMI 2.1 capability and future-proofing.

Performance

AVR-X3700H really shines in performance. Whether you're watching movies, gaming, or listening to music, the sound quality is outstanding and it runs 105 watts per channel. Particularly with high-end audio codecs like Dolby Atmos and DTS, users blast about the clarity and detail it offers. The highs are sharp but not harsh; the bass is powerful; and the middle tones are clear. With sound effects that are both deep and exact, many people like how the AVR-X3700H renders every movie to seem like a theater experience. An easy understanding of dialogue is a great advantage in action situations or when background music is loud. Good ventilation is also essential to prevent any overheating problems as some users have observed that it may become somewhat warm with prolonged usage.

With 105 watts per channel and compatibility with all the newest audio formats, the AVR-X3600H also performs well. Users like how effectively it manages surround sound configurations, therefore producing a rich, immersive experience fit for both movies and music. It manages changes gracefully, and the deep and forceful bass response gives action sequences a great punch. Some consumers, particularly at higher levels where it might sound a little less controlled, believe the AVR-X3600H does not quite equal the finesse of the AVR-X3700H. Regarding upscaling lower-resolution material, there is also a little difference; some have observed that side-by-side comparison with the newer model results in less sharp visual quality. Leading with a somewhat more refined sound and improved handling of high-end audio and video formats is the AVR-X3700H.

Where and when to use 

Anyone wishing to future-proof their home theater configuration should choose the AVR-X3700H. It's ideal for movie buffs seeking the finest in sound and image quality as well as for gamers wishing to use the newest video formats and refresh rates. Its strength and capacity to cover the room with sound make it a perfect option for medium-sized to big spaces. For those who want a top-notch home theater experience without necessarily requiring the newest technology, the AVR-X3600H is fantastic. For those without 8K TVs or not very interested in 4K at 120Hz, this is perfect. It's ideal for family rooms or designated theater spaces where you want a strong performance without going broke. While both are excellent, the AVR-X3700H is more adaptable for future applications.

Compatible Devices   

From the newest game consoles to older Blu-ray players, the AVR-X3700H performs well practically on every device. It runs effortlessly with streaming devices like Roku, Apple TV, and Amazon Fire Stick and supports all the popular music formats. With Alexa and Google Assistant compatibility for voice control, users value how simple it is to include smart home configurations. Additionally, very compatible with a broad spectrum of devices is the AVR-X3600H. Users say they have flawless interaction with smart TVs, gaming consoles, and streaming devices. It doesn't fight most current technology and is dependable. For those wishing to connect the newest game consoles for high refresh rate gaming, however, the absence of HDMI 2.1 might be a drawback. Given its wider future-proof compatibility, the AVR-X3700H is somewhat ahead.

Ease of Use    

Although first-timers may find the AVR-X3700H's setup procedure somewhat intimidating given the huge range of possibilities, it is usually really simple. Although the on-screen setup aid guides you through every step, some customers have observed that if you're not tech-savvy it still seems a little complicated. Once configured, daily usage is extremely simple and all main features are readily available via the Denon app or remote. Both of the products have somewhat comparable ease of use. Additionally included in the AVR-X3600H is an on-screen setup assistance designed to guide you across speaker and device connections. Though, like with the AVR-X3700H, users have found it friendly, initially it may seem a little daunting. Though the remote and app are effective, there is a learning curve. It's a tie; while once set up both receivers are user-friendly, the first setup procedure might be frightening.

Cost

Reflecting its latest technology and more capabilities, the more expensive of the two AVR-X3700H For consumers seeking the newest and best, it seems like a wise expenditure. Some, however, believe the price is a little excessive, particularly if you won't fully use the 8K video or HDMI 2.1 capabilities. The AVR-X3600H offers a more affordable cost without compromising much in performance. For those trying to economize without sacrificing too much on quality, users value it much for the money and find it to be an appealing choice.