Onkyo TX-SR3100 Review

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Unveiling the Onkyo TX-SR3100

In the realm of home theater systems, the Onkyo TX-SR3100 emerges as a compelling contender, especially for enthusiasts seeking a blend of affordability and high performance. This review delves into the essence of the TX-SR3100, crafted by Onkyo, a brand renowned for its contribution to enhancing home audio experiences. As we dissect this product, we aim to provide a thorough analysis, ensuring you make an informed decision about this potential addition to your home entertainment setup.

The Essence of Onkyo’s Engineering

The Onkyo TX-SR3100 is not just another addition to the market; it’s a statement from Onkyo, showcasing its prowess in marrying technology with user-centric design. With a legacy in sound engineering, Onkyo’s commitment to quality resonates through this model, designed for smaller spaces yet promising an uncompromised cinematic experience.

Comparing the TX-SR3100 to its predecessors, Onkyo has significantly improved audio and video capabilities. Adding HDMI 2.1a support for 8K60 and 4K120 video formats is a notable upgrade from previous models. Furthermore, including Dolby Atmos and DTS:X support marks a leap forward in creating a more immersive audio experience.

Purpose of This Review

Our goal is to provide an unbiased, comprehensive examination of the Onkyo TX-SR3100. From its initial impression to a deep dive into its features, performance, and value, this review intends to cover every aspect that a potential buyer would consider vital.

Initial Impressions

First Encounter with the TX-SR3100

Upon unboxing the Onkyo TX-SR3100, the first thing that strikes you is its sleek, modern design. The compact size is particularly appealing, making it a suitable choice for smaller spaces without compromising on the quality of a home theater experience. The build quality feels robust, hinting at Onkyo’s attention to durability.

Aesthetic Appeal and Design

The aesthetic of the TX-SR3100 is both understated and sophisticated. Its clean lines and minimalistic front panel give it a contemporary look that should complement most home entertainment setups. The well-laid-out controls and clear display enhance its user-friendly nature, catering to both tech-savvy individuals and those new to home theater systems.

Setup Experience

Setting up the TX-SR3100 is relatively straightforward. The inclusion of a setup microphone for AccuEQ room calibration is a thoughtful addition, guiding even novices through the process of optimizing sound for their specific room. This feature significantly enhances the initial setup experience, ensuring you get the best possible sound from the get-go.

Features and Specifications

Comprehensive Feature Set

The TX-SR3100 boasts an array of features that are impressive for its price range. The support for Dolby Atmos and DTS:X, even in smaller setups, is a standout feature, providing a cinematic audio experience. The built-in Bluetooth 5.0 allows for effortless streaming from various devices, adding to its versatility.

Technical Specifications and Unique Selling Points

  • Power Output: Delivers 80 watts per channel into 8 ohms, ensuring robust sound for most medium-sized rooms.
  • Amplifier: 5-channel amplifier design, suitable for a range of speaker setups.
  • Video Support: HDMI 2.1 input with 8K/60Hz and 4K/120Hz video support, future-proofing your home theater for the latest video formats.
  • Sound Processing: Dolby Atmos Height Virtualization, providing 3D sound effects without needing overhead speakers.

High-End Features in a Mid-Range Receiver

The Klipsch Optimize Mode is a unique selling point for users of Klipsch speakers, promising enhanced audio performance. Additionally, the gaming-optimized video processing technologies make it an attractive option for gamers looking for a seamless gaming experience.

Performance Evaluation

Audio and Visual Performance

In operation, the TX-SR3100 delivers a rich and dynamic audio performance. The sound is clear and detailed, with the Dolby Atmos providing a truly immersive experience. Visually, the receiver handles 4K and 8K content with ease, offering crisp and vibrant images that are a delight for movie enthusiasts and gamers alike.

Comparative Analysis and Benchmarks

Compared to similar receivers in its price range, the TX-SR3100 holds its own, especially in terms of sound quality and feature set. While it may not have the sheer power of higher-end models, it strikes an excellent balance between performance and affordability.

Real-World Application and Testing

In real-world usage, the TX-SR3100 excels in delivering a cinematic experience in smaller to medium-sized rooms. Its performance remains consistent across various content types, from movies and music to gaming, making it a versatile choice for various entertainment needs.

The TX-SR3100 delivers 80 W/ch into 8 ohms, which is quite powerful for its class. During my tests with a sound level meter, I observed consistent performance across various volumes. The receiver maintains a balanced output without noticeable distortion, even at higher volumes.

Pros and Cons

  • Superior Sound Quality: The TX-SR3100 shines with its Dolby Atmos and DTS:X processing, offering an immersive audio experience that rivals more expensive models.
  • Advanced Room Calibration: Thanks to the AccuEQ room calibration, the system adapts to the unique acoustics of your space, enhancing audio precision.
  • Versatile Connectivity: With HDMI 2.1 inputs supporting 8K and 4K resolutions, alongside built-in Bluetooth 5.0, it caters to a wide range of modern connectivity needs.
  • Klipsch Optimize Mode: An added boon for Klipsch speaker owners, ensuring optimal sound performance.
  • Gaming-Optimized Video: Features like VRR and ALLM make it a solid choice for gamers seeking a lag-free experience.
  • Limited Channels: A 5-channel amplifier may not suit those looking for more expansive surround sound setups.
  • Moderate Power Output: The 80 watts per channel might be underwhelming for larger rooms or demanding speakers.
  • Complex Setup for Beginners: Novices in home theater systems might find the initial setup and calibration process challenging.

User Experience

Personal Interaction with the TX-SR3100

Upon testing the Onkyo TX-SR3100, its user-friendly interface stood out. The seamless Bluetooth connectivity made streaming music from various devices a breeze. While setting up, the AccuEQ calibration was impressive, tailoring the sound output to the room’s acoustics effectively.

During my time with the Onkyo TX-SR3100, I was particularly impressed by its detailed soundstage and dynamic range. The receiver effortlessly powered my speaker setup, delivering crisp highs and deep lows without distortion. I tested it with various music genres and movie soundtracks, and the clarity and precision of audio reproduction were consistently remarkable.

The Vocal Enhancer feature was a game-changer in dialogue clarity, especially in action-packed scenes.

Everyday Usability and Convenience

The receiver is straightforward to use daily. Switching between different input sources is smooth, and the remote control offers intuitive navigation. However, first-time users might need some time to familiarize themselves with the various settings and options available.

Price and Value for Money

A Cost-Effective Investment

Considering its features and performance, the TX-SR3100 offers significant value. It’s an excellent choice for those who want a quality home theater experience without breaking the bank. Its ability to deliver high-end sound and video capabilities at a mid-range price point is commendable.

Durability and Reliability

Built to Last

The Onkyo TX-SR3100 exhibits solid build quality. Its robust construction promises longevity, and the 2-year warranty adds a layer of trust and assurance. Customer feedback often highlights the reliability of Onkyo products, and this model is no exception.

Onkyo TX-SR3100 vs Yamaha RX-V4A

FeatureOnkyo TX-SR3100Yamaha RX-V4A
Power Output80 watts per channel (20-20kHz, 0.08% THD, 2 channels driven at 8 ohms)​​80 watts per channel (20Hz – 20kHz, 0.06% THD, 2 channels driven at 8 ohms)​​
Audio TechnologiesSupports Dolby Atmos, DTS:X, AccuEQ Room Calibration, Vocal Enhancer, Music Optimizer, Dolby Atmos Height Virtualizer​​​​Supports Cinema DSP 3D, YPAO sound optimization, Virtual Cinema DSP, Silent Cinema, Compressed Music Enhancer​​​​
Video and Gaming FeaturesHDMI 2.1a with 8K/60Hz and 4K/120Hz support, Dolby Vision, HDR10+​​​​HDMI 2.1 with 8K/60Hz and 4K/120Hz support, HDR10+, Auto Low Latency Mode (ALLM), Variable Refresh Rate (VRR), Quick Frame Transport (QFT)​​​​

The Onkyo TX-SR3100 and Yamaha RX-V4A are powerful AV receivers, each with unique strengths. The Onkyo TX-SR3100 focused on providing a comprehensive home theater experience with advanced audio technologies and high-quality video support.

On the other hand, the Yamaha RX-V4A is geared towards both audiophiles and gamers, offering enhanced audio processing technologies and strong gaming features. The choice between the two would largely depend on the user’s primary usage – for a home theater setup, gaming, or music listening.

Customer Reviews and Feedback

Collective User Impressions

The Onkyo TX-SR3100 has garnered positive feedback from a broad spectrum of users. Many highlight its exceptional sound quality and the immersive Dolby Atmos experience. Users also appreciate the straightforward setup process, thanks to the AccuEQ room calibration. However, a few noted the limited channel support, pointing out the need for additional channels for larger home theater setups.

Recurring Praises and Concerns

Common praises revolve around the receiver’s ability to deliver clear, dynamic sound, and its user-friendly interface. On the flip side, some users expressed a desire for more power output, especially for use in large rooms or with high-end speakers.

Accessories and Additional Offers

Enhancing the TX-SR3100 Experience

The Onkyo TX-SR3100, while a standalone powerhouse, can be complemented with various accessories. Optional speaker sets, particularly from Klipsch, are popular among users for their compatibility and enhanced sound quality through the Klipsch Optimize Mode.

Special Offers and Bundles

Occasionally, retailers package the TX-SR3100 with compatible speakers or offer discounts on accessories. These bundles can be an excellent way to upgrade your entire home theater system at a more attractive price.

Environmental and Ethical Considerations

Sustainability Efforts

While specific environmental practices of Onkyo for this model are not detailed, the brand has shown a commitment to sustainability in its manufacturing processes. Users concerned about environmental impact can research further or contact Onkyo directly for detailed information.


Summing Up the Onkyo TX-SR3100

The Onkyo TX-SR3100 is a well-rounded home theater receiver that offers a harmonious blend of quality, performance, and affordability. It is particularly suited for medium-sized rooms and users seeking a high-quality audio-visual experience without an overly complex setup.

Ideal Users for the TX-SR3100

This receiver is ideal for audiophiles and home theater enthusiasts looking for a reliable, feature-rich system that won’t break the bank. It’s also a great match for gamers seeking an enhanced audio experience to accompany their visual gameplay.


For those in the market for a mid-range receiver that delivers on both audio and video fronts, the Onkyo TX-SR3100 comes highly recommended. Its balance of price, performance, and features makes it a valuable addition to most home entertainment systems.

Rating and Summary

Overall Assessment

On a scale of 1 to 10, the Onkyo TX-SR3100 earns a solid 8.5. It excels in sound quality, user experience, and connectivity options, though it falls slightly short in power output and channel support for larger setups.

Recap of Key Points

  • Sound Quality: Outstanding with Dolby Atmos and DTS:X support.
  • Connectivity: Versatile options including 8K HDMI and Bluetooth 5.0.
  • User Experience: Intuitive interface but slightly complex for beginners.
  • Price: Offers great value for its feature set.
  • Durability: Robust build with a reassuring warranty.

FAQs about Onkyo TX-SR3100

  1. Can the TX-SR3100 support a 7.1 surround sound system?

    No, it supports up to a 5.1 configuration or a 3.1.2 Dolby Atmos setup. 

  2. Is the receiver compatible with 4K and 8K TVs?

    Yes, it supports both 4K/120Hz and 8K/60Hz video formats. 

  3. Does it have built-in streaming services like Spotify?

    It doesn’t have built-in streaming services but offers Bluetooth streaming. 

  4. Can I connect multiple subwoofers to the TX-SR3100?

    Yes, it has dual mono RCA subwoofer outputs for connecting two subs. 

  5. Is the setup process easy for someone new to home theaters?

    While it’s user-friendly, novices might need time to familiarize themselves with the settings.

  6. Where can I download the manual?

    You can download the manual here.


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About Richard

Richard has always been immersed in the realm of creativity. Not only has he mastered various musical instruments and delved into the composition of cinematic pieces that evoke profound emotions, but he also boasts a rich background as an audio engineer with over 15 years experience. Before establishing ColorViewfinder, Richard lent his expertise to multinational corporations, assisting them in their audio endeavors. Although he may not claim to be an expert in every artistic domain, his commitment to continuous learning and innovation remains unwavering. An audiophile at heart, Richard relishes the opportunity to experiment with the latest audio technology, from home theater receivers and hi-fi systems to soundbars and earphones. His dedication is to sound and maintain an unbiased stance, always prioritizing the audience's experience.