Onkyo TX-RZ50 vs Denon X3700H: A Comprehensive Audio Receiver Comparison

When it comes to choosing the perfect audio receiver for your home entertainment system, two brands that often stand out are Onkyo and Denon. Both companies have established a reputation for producing high-quality receivers with advanced features. In this article, we will compare two popular models: the Onkyo TX-RZ50 and the Denon X3700H. By examining their key features, performance, connectivity options, and overall user experience, we aim to help you make an informed decision.

Design and Build Quality

The Onkyo TX-RZ50 and Denon X3700H both boast a sturdy build quality and sleek design. The Onkyo TX-RZ50 features a clean front panel with a large display and intuitive controls, while the Denon X3700H showcases a modern aesthetic with a well-organized front interface. Ultimately, the choice between the two models in terms of design is subjective and depends on personal preference.

Audio Performance

Audio performance is paramount when selecting an audio receiver. The Onkyo TX-RZ50 delivers exceptional audio quality with its high-current amplification and dynamic audio processing capabilities. With THX certification, it guarantees immersive and precise sound reproduction. The Denon X3700H, on the other hand, is renowned for its powerful amplification and high-resolution audio support. It incorporates advanced audio technologies, such as Dolby Atmos and DTS:X, to create a three-dimensional soundstage. Both receivers offer outstanding audio performance, so the final decision may rely on individual preferences and the specific requirements of your home theater setup.

Connectivity Options

In terms of connectivity, both the Onkyo TX-RZ50 and the Denon X3700H provide an array of options to accommodate various devices. The Onkyo TX-RZ50 includes eight HDMI inputs and three HDMI outputs, supporting the latest HDMI 2.1 specifications, which enables features like 8K and 4K/120Hz pass-through. Additionally, it offers multi-room audio capabilities and extensive wireless connectivity options, including Wi-Fi, Bluetooth, and Apple AirPlay 2.

Similarly, the Denon X3700H offers eight HDMI inputs and three HDMI outputs with HDCP 2.3 support. It also provides wireless connectivity options such as Wi-Fi, Bluetooth, and AirPlay 2. Moreover, it supports HEOS multi-room audio technology, allowing you to stream music throughout your home seamlessly.

User Experience and Ease of Use

Both Onkyo and Denon have invested in user-friendly interfaces to enhance the overall user experience. The Onkyo TX-RZ50 employs a user-friendly GUI with intuitive on-screen menus and a remote control that simplifies operation. It also offers voice control compatibility through services like Google Assistant and Amazon Alexa, providing convenient hands-free operation.

The Denon X3700H features a similar user-friendly interface with an intuitive setup wizard, on-screen instructions, and a dedicated mobile app for easy control and customization. It also supports voice assistants, including Amazon Alexa, Google Assistant, and Apple Siri, enabling effortless voice control.

Additional Features

The Onkyo TX-RZ50 comes with AccuEQ room calibration technology, which optimizes the audio output based on your specific room environment. It also supports various streaming services and features a USB input for high-resolution audio playback.

The Denon X3700H includes Audyssey MultEQ XT32 room correction technology, ensuring accurate sound reproduction tailored to your room’s acoustics. It supports various streaming services and features a phono input for vinyl enthusiasts.


Choosing between the Onkyo TX-RZ50 and the Denon X370 0H ultimately depends on your specific needs and preferences. Both receivers offer exceptional audio performance, extensive connectivity options, and user-friendly interfaces. Consider factors such as the specific features you prioritize, the compatibility with your existing devices, and the overall sound experience you desire.

If you value THX certification and dynamic audio processing, the Onkyo TX-RZ50 might be the ideal choice for you. Its high-current amplification and immersive sound reproduction capabilities make it a great option for home theater enthusiasts seeking a cinematic audio experience.

On the other hand, if you’re drawn to powerful amplification, advanced audio technologies like Dolby Atmos and DTS:X, and the convenience of HEOS multi-room audio, the Denon X3700H could be the receiver for you. Its emphasis on high-resolution audio and room correction technology ensures an accurate and immersive listening experience.

Ultimately, we recommend auditioning both receivers, if possible, to determine which one aligns better with your personal preferences. Consider factors such as sound quality, ease of use, connectivity options, and the specific features that matter most to you. By making an informed decision based on your unique requirements, you’ll be well on your way to enjoying an exceptional audio experience in your home entertainment setup.

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