Best 7.2 Channel AV Receiver in 2025: Tested and Reviewed

If you’re building the ultimate home theater or simply upgrading your entertainment setup, choosing the best 7.2 channel AV receiver is a decision you don’t want to rush. With seven speaker channels and two subwoofers at your disposal, a 7.2 receiver delivers immersive, theater-like surround sound that transforms how you watch movies, play games, or listen to music. In this guide, we’ve tested and reviewed the top 7.2 channel AV receivers on the market, so you can make an informed decision.

List of the Best 7.2 Channel AV Receiver:

Check out the detailed reviews below.

1. YAMAHA RX-V6A 7.2-Channel AV Receiver

The Yamaha RX-V6A is a future-ready 7.2-channel AV receiver designed to elevate home entertainment with high-performance audio and cutting-edge video support. With 7 HDMI inputs and 1 output (HDMI 2.1 compliant), it supports 4K/120Hz and 8K/60Hz video passthrough, ideal for modern gaming and movie experiences. Its compatibility with Dolby Atmos, DTS:X, and Dolby Vision ensures immersive surround sound and vibrant visuals.

This unit is equipped with Wi-Fi, Bluetooth, AirPlay 2, and MusicCast, allowing seamless multi-room audio and wireless streaming. You can control it via Amazon Alexa, Google Assistant, or Siri, providing convenient smart home integration. Additionally, it supports Spotify Connect, Pandora, TIDAL, Qobuz, and other major streaming platforms.

For optimal sound calibration, the RX-V6A uses YPAO R.S.C. with multipoint, which measures up to eight listening positions, creating a balanced audio profile across the room. Enhanced gaming features like ALLM and VRR reduce lag and screen tearing.

Key Features, Pros, and Cons

Key Features

• 7.2 channels with Dolby Atmos and DTS:X support
• HDMI 2.1 with 8K/60Hz and 4K/120Hz passthrough
• MusicCast multi-room with wireless surround speaker support
• Voice control via Alexa, Google Assistant, or Siri
• YPAO R.S.C. room calibration with 8-point measurement

Pros

• Excellent surround sound and video passthrough
• Wide streaming and connectivity options
• Smart home compatible
• Multi-point room calibration
• Future-proof HDMI features

Cons

• Weak remote control design

2. Denon AVR-S770H 7.2 Ch AV Receiver

The Denon AVR-S770H is a 7.2-channel AV receiver that blends immersive sound performance with cutting-edge video support. Delivering 75 watts per channel, it supports 8K/60Hz and 4K/120Hz passthrough via HDMI 2.1, making it ideal for high-performance home theaters and next-gen gaming. With Dolby TrueHD, Dolby Surround, DTS:X, and Neural:X, it brings rich 3D audio to both modern and legacy content.

This receiver is designed for flexibility. It offers 6 HDMI inputs and 2 outputs, including 3 dedicated 8K ports. It also supports advanced video formats like HDR10+, Dolby Vision, Dynamic HDR, and HLG. For gamers, features like VRR, ALLM, and QFT ensure smooth, lag-free play.

Built-in HEOS, Bluetooth, and Wi-Fi allow for wireless multi-room music streaming. Voice control compatibility with Amazon Alexa and others adds convenience, while Audyssey Room Correction ensures precise calibration of speaker settings.

Key Features, Pros, and Cons

Key Features

• 8K/60Hz & 4K/120Hz HDMI passthrough with HDR10+ and Dolby Vision
• Dolby Atmos, DTS:X, and height virtualization support
• Built-in HEOS, Bluetooth, Wi-Fi for wireless streaming
• 6 HDMI inputs / 2 outputs with 3 dedicated 8K ports
• Audyssey Room Correction and intuitive setup assistant

Pros

• Strong 3D audio and video performance
• Easy setup and room calibration
• Future-proof with 8K and gaming features
• Voice assistant compatibility
• Multi-room audio with HEOS

Cons

• Interface navigation needs improvement

3. Onkyo TX-NR6100 7.2 Channel AV Receiver

The Onkyo TX-NR6100 is a high-performance 7.2-channel AV receiver designed for serious home theater and gaming enthusiasts. With THX Certification, it delivers studio-grade audio across four listening modes—Cinema, Gaming, Music, and Surround EX. This receiver supports Dolby Atmos and DTS:X, offering immersive surround sound with or without dedicated height speakers, thanks to Dolby Atmos Height Virtualizer.

Engineered for 8K/60Hz and 4K/120Hz video passthrough, the TX-NR6100 is ideal for next-gen consoles and high-frame-rate media. Gamers benefit from HDMI 2.1 features, including Variable Refresh Rate (VRR), Auto Low Latency Mode (ALLM), and Quick Frame Transport (QFT), ensuring smooth, lag-free performance.

For whole-home integration, the receiver is Works with Sonos Certified, allowing seamless connection with a Sonos Port for synchronized audio control via the Sonos app. It also features Discrete Zone 2 HDMI, enabling independent UHD content in two different rooms.

Key Features, Pros, and Cons

Key Features

• 7.2 channels with Dolby Atmos, DTS:X, and THX Certification
• HDMI 2.1 with 8K/60Hz and 4K/120Hz support
• Works with Sonos Certified integration
• Discrete Zone 2 HDMI for multi-room UHD playback
• Enhanced gaming with VRR, ALLM, and QFT

Pros

• Outstanding audio fidelity with THX modes
• Seamless gaming performance with HDMI 2.1
• Easy guided setup process
• Sonos compatibility
• Multi-room HDMI functionality

Cons

• No built-in HEOS or AirPlay

4. Denon AVR-X2800H 7.2 Ch AV Receiver

The Denon AVR-X2800H is a premium 7.2-channel AV receiver engineered for 8K-ready home theaters. With 95 watts per channel, it delivers powerful, clear sound suitable for small to mid-size rooms. The unit supports 8K/60Hz and 4K/120Hz video passthrough, offering exceptional visual clarity for ultra-HD TVs and next-gen gaming consoles. For immersive audio, it includes Dolby Atmos, DTS:X, and upmixing via Dolby Surround and DTS Neural:X, ensuring 3D spatial sound even from legacy content.

This receiver also supports HDR10+, Dolby Vision, Dynamic HDR, and HLG, optimizing high-contrast video playback. It offers flexible speaker configurations, including 7.2 or 5.2.2, and virtual height effects using Dolby Height Virtualization or DTS Virtual:X. Users can stream music via built-in HEOS, Wi-Fi, Bluetooth, or popular services like Spotify and TIDAL.

With 6 HDMI inputs and 2 outputs (including 3 8K ports), USB, phono input, and dual subwoofer outputs, it easily connects to modern devices. The Audyssey Room Correction Suite simplifies speaker calibration for optimal performance.

Key Features, Pros, and Cons

Key Features

• 7.2-channel output at 95W per channel
• 8K/60Hz and 4K/120Hz HDMI passthrough
• Dolby Atmos and DTS:X with virtual height effects
• Built-in HEOS, Bluetooth, Wi-Fi streaming
• Audyssey Room Correction with on-screen setup

Pros

• Excellent audio and 8K video support
• Versatile connectivity and multi-room streaming
• Easy calibration with Audyssey
• Flexible speaker layout options
• High value for feature set

Cons

• No native Chromecast or AirPlay 2

5. Sony STR-AN1000 7.2 CH AV Receiver

The Sony STR-AN1000 is a powerful 7.2-channel AV receiver designed to deliver a theater-quality experience at home. With 165 watts per channel (6 ohms, 1 kHz, 1ch, THD 0.9%), it delivers dynamic, clear sound in a variety of setups. Featuring Dolby Atmos, DTS:X, and 360 Spatial Sound Mapping, this receiver creates a highly immersive 3D soundstage with precise speaker placement correction through Digital Cinema Auto Calibration IX.

It supports 8K and 4K/120Hz video passthrough via HDMI 2.1 (6-in/2-out), ensuring compatibility with the latest TVs, gaming consoles, and streaming devices. The unit is also optimized for modern HDR formats, including Dolby Vision, HDR10, HLG, and IMAX Enhanced, delivering vivid, high-contrast visuals.

The STR-AN1000 excels in connectivity, with Bluetooth, Wi-Fi, Apple AirPlay, Chromecast, and Spotify Connect built-in. It integrates with Google Assistant and offers “Works with Sonos” certification, though some users report limited compatibility. Setup is streamlined with a guided graphical interface.

Key Features, Pros, and Cons

Key Features

• 7.2-channel output at 165W per channel (6 ohms)
• HDMI 2.1 with 8K/60 and 4K/120 passthrough
• Dolby Atmos, DTS:X, and 360 Spatial Sound
• Built-in Bluetooth, Wi-Fi, Chromecast, AirPlay
• Digital Cinema Auto Calibration IX

Pros

• Immersive surround sound accuracy
• Strong video upscaling and HDR support
• Smooth setup with intuitive interface
• Wide wireless streaming options
• Good value for performance

Cons

• Limited Sonos integration reported
• No native HEOS or multi-room audio platform

6. Denon AVR-X1700H 7.2ch AV Receiver

The Denon AVR-X1700H is a powerful and versatile 7.2-channel AV receiver built for immersive audio and next-generation video. With 95 watts per channel (8 ohms, 20Hz–20kHz, 0.08% THD), it delivers clean, dynamic sound suitable for movies, gaming, and music. It supports Dolby Atmos, DTS:X, and Dolby Atmos Height Virtualization, creating a 3D soundstage—even without dedicated height speakers.

Designed with future-proof video in mind, the AVR-X1700H features 3 dedicated 8K HDMI inputs and 6 total HDMI ports, all capable of 8K upscaling and 4K/120Hz passthrough. Video formats such as HDR10, HDR10+, Dolby Vision, HLG, and Dynamic HDR are supported, ensuring exceptional color accuracy and contrast.

The receiver includes HEOS built-in, enabling multi-room audio streaming via Wi-Fi, Bluetooth, or AirPlay 2, and supports services like Spotify, Amazon Music HD, and Pandora. With full voice control through Alexa, Siri, and Google Assistant, and support for home automation systems, it offers intuitive, hands-free operation.

Key Features, Pros, and Cons

Key Features

• 7.2-channel output at 95W per channel
• 8K/60Hz and 4K/120Hz passthrough with HDR10+, Dolby Vision
• Dolby Atmos and DTS:X with height virtualization
• Built-in HEOS, AirPlay 2, Bluetooth, voice control
• On-screen setup with color-coded rear panel

Pros

• Excellent sound and video passthrough
• Future-proof HDMI 2.1 features
• Smooth wireless streaming and voice control
• Easy, guided setup
• Multi-zone and smart home compatible

Cons

• Only 3 HDMI ports support 8K
• No native Chromecast

7. Sony STR-DH790 7.2-ch AV Receiver

The Sony STR-DH790 is a sleek and capable 7.2-channel AV receiver designed to deliver cinematic surround sound and vibrant 4K visuals in home theater setups. With support for Dolby Atmos and DTS:X, it creates a realistic, multi-dimensional audio experience. Sony’s Advanced D.C.A.C. calibration automatically adjusts sound settings for your specific room layout, ensuring optimal audio performance.

Video performance is equally impressive. The receiver features 4K HDR pass-through and supports Dolby Vision, HDR10, and HLG, offering enhanced contrast and color for a stunning viewing experience. It includes 4 HDMI inputs and 1 HDMI output, along with optical, coaxial, and analog inputs, ensuring broad device compatibility.

Measuring just 5.25 inches in height, the STR-DH790 fits easily into most AV cabinets without sacrificing performance. Bluetooth streaming and standby wake-up add modern convenience, while the Pure Direct function suppresses digital noise for cleaner audio playback.

Key Features, Pros, and Cons

Key Features

• 7.2-channel surround with Dolby Atmos and DTS:X
• 4K HDR pass-through with Dolby Vision and HLG support
• Auto calibration via Advanced D.C.A.C.
• Bluetooth streaming with standby wake
• Low-profile design (5.25″ tall)

Pros

• Excellent surround sound performance
• Simple setup and calibration
• Compact size fits most AV cabinets
• Clean video passthrough with HDR
• Good value for price

Cons

• Limited HDMI ports (only 4 inputs)
• Lacks Wi-Fi or advanced streaming options

8. Onkyo TX-NR6050 7.2-Channel AV Receiver

The Onkyo TX-NR6050 is a 7.2-channel network AV receiver built for today’s high-performance home theater and gaming demands. It features HDMI 2.1 with support for 8K/60Hz and 4K/120Hz pass-through, enabling ultra-smooth visuals with sharp detail and high-speed motion clarity. Dynamic HDR and eARC support ensure enhanced contrast, accurate color, and uncompressed audio for the most immersive viewing experience.

This receiver is optimized for modern media consumption with built-in streaming services including Spotify, TIDAL, Pandora, TuneIn, and Deezer. It’s compatible with Apple AirPlay, Google Assistant, and Amazon Alexa, allowing seamless voice control and smart home integration. The TX-NR6050 also supports Variable Refresh Rate (VRR), Auto Low Latency Mode (ALLM), and Quick Frame Transport (QFT) for a lag-free 4K gaming experience.

Key Features, Pros, and Cons

Key Features

• 7.2-channel output with HDMI 2.1 (8K/60, 4K/120 passthrough)
• Built-in streaming: Spotify, TIDAL, Pandora, more
• Smart home integration with AirPlay, Alexa, Google
• Gaming enhancements: VRR, ALLM, QFT
• eARC and Dynamic HDR support

Pros

• Excellent video performance with HDMI 2.1
• Strong smart home and streaming compatibility
• Gamer-friendly features and latency reduction
• Easy setup and user-friendly interface
• Good value for the price

Cons

• No advanced room calibration system

9. Onkyo TX-NR5100 7.2-Channel AV Receiver

The Onkyo TX-NR5100 is a feature-rich 7.2-channel AV receiver designed for immersive home entertainment, gaming, and smart home integration. Equipped with HDMI 2.1, it supports 8K/60Hz and 4K/120Hz pass-through, delivering sharp visuals, fluid motion, and compatibility with high-speed action content. Support for Dynamic HDR and eARC ensures enhanced video detail and uncompressed, high-resolution audio.

For immersive surround sound, the TX-NR5100 features Dolby Atmos, DTS:X, and Dolby Atmos Height Virtualizer, simulating overhead audio even without height speakers. The receiver integrates seamlessly with Apple AirPlay, Alexa, Google apps, and is Works with Sonos Certified, allowing intuitive control through the Sonos ecosystem. Built-in access to Spotify, TIDAL, Pandora, Deezer, and TuneIn expands streaming flexibility.

Audio fidelity is enhanced by Dynamic Audio Amplification (DAA) technology and AccuEQ Room Calibration, which ensures accurate speaker balance, crossover settings, and placement. Additionally, the unit supports DTS Play-Fi for whole-home synchronized streaming.

Key Features, Pros, and Cons

Key Features

• 7.2-channel output with Dolby Atmos and DTS:X
• HDMI 2.1 with 8K/60Hz, 4K/120Hz, eARC, and HDR support
• Smart home integration: Sonos, Alexa, Google, AirPlay
• Built-in streaming services + DTS Play-Fi
• AccuEQ room calibration and Dynamic Audio Amplification

Pros

• Future-proof HDMI 2.1 support
• Wide smart home and streaming compatibility
• Immersive surround sound with virtualization
• Easy setup with room calibration
• Works with Sonos

Cons

• Reported Bluetooth connectivity issues
• ARC functionality may be unstable

How to Choose the Best 7.2 Channel AV Receiver?

If you’re serious about upgrading your home theater, a 7.2 channel AV receiver could be the game-changer you’ve been waiting for. But with dozens of options out there, how do you pick the right one?

What Is a 7.2 Channel AV Receiver — And Why Should You Want One?

Before diving into the shopping checklist, it’s crucial to understand what a 7.2 AV receiver actually does. In simple terms, “7.2” means it can power seven speakers and two subwoofers. This configuration is ideal for creating an immersive surround sound experience in medium to large rooms. If you love movies, sports, gaming, or music — a 7.2 system offers depth, dimension, and power that’s hard to match.

1. Define Your Needs First: What Will You Use It For?

Every buyer is different. Are you a movie buff, a gamer, a vinyl lover, or someone who just wants booming bass in the living room? Here’s how needs may affect your receiver choice:

User Type	Key Features to Prioritize
Movie Enthusiast	Dolby Atmos, DTS:X, 4K/8K pass-through
Gamer	Low latency, HDMI 2.1, VRR, ALLM support
Audiophile	High SNR, phono input, Hi-Res Audio, pre-amp outs
Smart Home User	Voice control (Alexa/Google), Wi-Fi/Bluetooth

Tip: Never overpay for features you won’t use. Instead, choose a receiver that aligns with your actual usage.

2. Check Power Output — But Don’t Be Fooled by the Numbers

More watts don’t always mean better sound. What matters more is how cleanly and efficiently that power is delivered. Look for RMS power (not peak) per channel, rated with 0.08% THD into 8 ohms.

Power Output Comparison
Good: 80–100W/ch @ 8Ω
Better: 100–130W/ch @ 8Ω
Best: 130+W/ch @ 8Ω

3. Compatibility with Your Current and Future Setup

Planning ahead saves money. Make sure your AV receiver supports the equipment you already own — and what you might add later.

• HDMI Inputs: Look for at least 6 HDMI ports, including front-panel access.
• HDMI 2.1 Support: Essential for 4K/120Hz or 8K TVs and gaming consoles.
• eARC (Enhanced Audio Return Channel): A must for lossless Dolby Atmos from streaming platforms.
• Zone 2 or Multi-Room Audio: Handy if you want music in another room.

4. Sound Formats: Dolby Atmos, DTS:X, and Beyond

Want true cinematic sound? Prioritize support for object-based formats:

• Dolby Atmos — Adds height dimension for overhead effects.
• DTS:X — Competes with Atmos; slightly more flexible speaker mapping.
• Auro-3D (optional) — Niche format for ultra-premium setups.

Pro Tip: Even if you don’t have height speakers yet, getting a receiver with Atmos means you’re future-ready.

5. Room Calibration: The Secret Sauce

The best AV receivers include automatic room calibration systems that optimize sound based on your room’s shape, furniture, and acoustics.

System	Found In Brands	Effectiveness
Audyssey XT32	Denon, Marantz	Excellent
YPAO	Yamaha	Very Good
MCACC	Pioneer	Good
Dirac Live	NAD, Arcam	Audiophile-grade

If you’re not an audio engineer, this feature is a life-saver.

6. Streaming and Smart Features: Cut the Cables

Most 7.2 AV receivers now double as smart hubs with built-in Wi-Fi, AirPlay 2, Chromecast, and Spotify Connect. Some even support multi-room audio systems like HEOS or MusicCast.

Ensure the receiver supports:

• Bluetooth 5.0 or later
• Voice Assistants (Alexa, Google Assistant)
• App Control (e.g., Yamaha MusicCast App)

7. Build Quality and Brand Reliability

Don’t underestimate long-term durability. A solid AV receiver should last you 5–10 years.

Top-rated brands for 7.2 receivers:

• Denon: Great all-rounders, excellent Audyssey calibration
• Yamaha: Rock-solid reliability, natural sound, MusicCast
• Onkyo/Pioneer: Feature-packed, often better price-per-watt
• Marantz: Premium build, audiophile tuning

8. Budget Planning: How Much Should You Spend?

Budget matters, but don’t let it lead you to underpowered or outdated models. Here’s a general guide:

Budget Range	What to Expect
$400–$600	Entry-level with Atmos, basic 7.2, limited HDMI 2.1
$600–$1,000	Mid-range with advanced calibration and 8K support
$1,000+	Premium features, powerful amps, superior build

Frequently Asked Questions When Selecting the Best 7.2 Channel AV Receiver

1. What is a 7.2 channel AV receiver, and how is it different from 5.1 or 7.1?

A 7.2 channel AV receiver supports seven surround sound speakers and two subwoofers, offering more depth and spatial separation than a 5.1 system (which only supports one subwoofer and five speakers). Compared to 7.1, the “.2” means you’re adding an extra subwoofer for better bass distribution, especially useful in larger or acoustically challenging rooms.

2. Do I need a 7.2 AV receiver if I only have a 5.1 speaker setup?

Not necessarily — but it can be a future-proof investment. Most 7.2 receivers are backward compatible and can run a 5.1 setup just fine. When you’re ready to upgrade your speakers, you won’t need a new receiver. Plus, many of these receivers come with better internal components, calibration systems, and connectivity options.

3. Is Dolby Atmos available on 7.2 receivers?

Yes, many modern 7.2 receivers support Dolby Atmos and DTS:X. However, to use Atmos properly, you need to reassign some of the seven channels as height speakers (e.g., 5.2.2 setup) or add compatible Atmos-enabled up-firing speakers. Check the receiver’s specs to ensure it supports Atmos decoding and speaker reconfiguration.

4. What power output should I look for in a 7.2 receiver?

Aim for at least 80–100 watts per channel (RMS at 8 ohms with low THD). But keep in mind: manufacturers often list inflated numbers based on 1 channel driven or 6-ohm loads. Look for full disclosure specs, and consider room size and speaker sensitivity. More power helps drive larger speakers and fill bigger spaces without distortion.

5. How many HDMI ports should a good 7.2 AV receiver have?

At minimum, a solid 7.2 receiver should offer 6–7 HDMI inputs and 2 outputs (for TV and a projector or secondary zone). HDMI 2.1 support is important if you’re into gaming or 8K video. Also look for eARC to get the best audio from your smart TV apps via a single HDMI cable.

6. Are two subwoofers really necessary?

While not required, dual subwoofers help eliminate bass dead zones and smooth out low-frequency response throughout the room. A 7.2 receiver gives you the flexibility to add a second subwoofer later, improving immersion for movies and music. It’s especially useful in large rooms or oddly shaped spaces.

7. What’s the best room calibration system for a 7.2 receiver?

Top systems include:

• Audyssey MultEQ XT32 – Found in Denon and Marantz; highly accurate and customizable.
• YPAO – Yamaha’s system is fast and reliable, great for plug-and-play users.
• Dirac Live – Premium calibration (in some Onkyo, NAD, Arcam models) with detailed tuning options.

Room correction can significantly improve sound quality — especially in rooms with echo, asymmetrical furniture, or odd dimensions.

8. Which brands make the most reliable 7.2 channel AV receivers?

Trusted brands include:

• Denon – Great value, solid performance, excellent calibration
• Yamaha – Long-lasting builds, neutral sound signature
• Marantz – Audiophile tuning, stylish design
• Onkyo/Pioneer – Strong feature sets, often competitive pricing All of these offer models across various price points and needs.

9. What should I expect to pay for a good 7.2 receiver?

Entry-level models start around $400–$500, mid-range models with Atmos and 8K support are typically $600–$900, and high-end receivers can cost $1,000 or more. Your budget should reflect your priorities — whether it’s pure audio fidelity, gaming features, or smart home integration.

10. Can a 7.2 AV receiver be used for music listening as well?

Absolutely. A high-quality 7.2 AV receiver often includes Hi-Res audio support, phono inputs for turntables, and pure direct modes for stereo listening. Look for receivers with good DACs (Digital-to-Analog Converters) and low distortion ratings. Some models even allow you to reassign unused surround channels to bi-amp front speakers, improving stereo performance.

11. What connectivity options should I look for?

Modern 7.2 receivers should support:

• HDMI 2.1 with 8K pass-through
• Wi-Fi and Bluetooth
• AirPlay 2 / Chromecast built-in
• Spotify Connect, Tidal, Amazon Music
• Voice control via Alexa or Google Assistant Make sure your receiver supports eARC, multi-room audio (like HEOS or MusicCast), and ideally has a control app.

12. How do I know if a 7.2 AV receiver will fit in my cabinet or media center?

Check the dimensions and ventilation requirements in the product specs. AV receivers generate heat, so leave at least 2–3 inches of space on top and sides. Weight can be a factor too — some units weigh over 25 pounds.

13. Can I set up a wireless 7.2 system with one of these receivers?

While most 7.2 receivers are wired, some offer wireless surround speaker support or subwoofer connectivity. Brands like Yamaha (via MusicCast Surround) or Denon (HEOS-compatible subs) are making strides in this area, but expect to still wire most speakers for best performance.

14. How long should a 7.2 AV receiver last?

With proper use, a quality AV receiver should last 7–10 years or more. Choosing a model with future-ready features (like HDMI 2.1 and 8K passthrough) extends its lifespan even further.

15. What’s the difference between 7.2 and 7.2.4?

A 7.2 receiver powers 7 speakers and 2 subs. A 7.2.4 system includes 4 height speakers (for Dolby Atmos), which requires a 9.2 or 11.2 channel receiver or an external amplifier. A standard 7.2 receiver supports up to 2 height channels (like 5.2.2).

Final Thoughts

Finding the best 7.2 AV receiver isn’t just about picking the most expensive model or chasing specs — it’s about choosing the unit that fits your unique setup, preferences, and future plans. From cinematic Dolby Atmos to smart home integration, each receiver we tested offers strengths that shine in different ways.