Audio Section
Video Section
Bluetooth & Tuner
Remote & Convenience Features
Audio Section
Dynamic Audio Amplification: The TX-SR3100 AV receiver features Onkyo's Dynamic Audio Amplification with a 5-channel amplifier rated at 80 watts (into 8-ohms, at 20Hz-20kHz, with 0.08%, driving 2 channels). Onkyo's Dynamic Audio Amplification technology incorporates a Hi-Current, non-phase shift amplifier design with discrete output stage circuitry and a H.C.P.S (High Current Power Supply) capable of driving 4 to 16-ohm speakers with dynamic control, while producing clear, detailed sound.
Precision 24-Bit/192kHz DAC: The Onkyo TX-SR3100 employs 24-bit/192kHz digital-to-analog conversion for playback of multichannel surround formats such as Dolby Digital, Dolby TrueHD, Dolby Atmos, DTS, DTS-HD, DTS:X, and more. You can even switch the type of digital filter in the audio DAC. You can choose "Slow" (gives the sound a soft and fluid feel), "Sharp" (gives the sound more structure and firmer feel) or "Auto" (auto). The setting can be separately set for each source input. The Digital Filter only can be set when the sampling frequency is 44.1kHz or more.
Compatible Digital Audio Formats: The Onkyo TX-SR3100 AV receiver supports the following stereo & multichannel digital audio formats through its HDMI jacks and optical/coax digital inputs.
| Digital Audio Connector | Audio Signal Type | Audio Signal Format |
| HDMI (4 Inputs/1 Output) | Bitstream | Dolby Atmos, Dolby Digital Plus, Dolby TrueHD, Dolby Digital
DTS:X, DTS-HD Master Audio, DTS-HD High Resolution, DTS Express, DTS-ES, DTS 96/24, DTS |
| PCM | 2ch to 8ch (32-192kHz, 16/20/24-bit) |
| Optical (1 Input)/Coaxial (1 Input) | Bitstream | Dolby Digital, DTS, DTS ES, DTS 96/24 |
| PCM | 2ch to 6ch, (32-96kHz, 16/20/24-bit) |
Dolby Atmos & DTS:X: Dolby Atmos and DTS:X allow engineers to map sound anywhere in 3D space with effects moving from speaker to speaker all around the room and wrapping your audience in the latest films and games. You can also enjoy your 3D speaker layout with classic titles thanks to Dolby Surround and DTS Neural:X which find overhead cues in legacy soundtracks and upmix for awesome spatial realism. The TX-SR3100 is limited to 5.2ch or 3.1.2ch playback of Dolby Atmos and DTS:X movie soundtracks.
- 5.2ch: In a traditional 5.2ch speaker layout (with Front, Center, and Surround speakers), you can engage Dolby Atmos Height Virtualizer or DTS Virtual:X to create virtual height effects for a more immersive listening experience.
- 3.1.2ch: In a 3.12ch speaker layout (with Front, Center and Height speakers), you can install overhead or top-firing Height effect speakers for a more realistic Dolby Atmos and DTS:X experience. However, there will be no dedicated Surround speakers.
AccuEQ Room Acoustic Calibration: AccuEQ streamlines the initial setup of your home theater setup and ensures the Onkyo AV receiver and speakers are properly calibrated for the best performance in your listening space. AccuEQ calculates speaker distance from the listening position, adjusts speaker sound pressure level, and sets the speaker crossover. The latter selects the correct point to roll off low-frequency sound to the subwoofer. The result is clear and balanced full-spectrum surround sound.
- Speaker Measurement: The first-round of AccuEQ measurements set the distance, sound pressure level, and crossover of your speakers. Distance and level calibration ensure all channels are treated equally. Crossover measurement selects the correct point to roll off low-frequency sound to the subwoofer for seamless speaker integration.
- Room Measurements: In the second round of AccuEQ measurements, your room's sonic characteristics are evaluated. Using this information, AccuEQ is able to prevent standing waves from forming by adjusting frequency response.
- AccuReflex Measurements: AccuEQ also incorporates AccuReflex technology to align the phase of up-firing "height" speakers with the sound coming directly from your other speakers. Any delay is resolved so that everything arrives at your ears at the same time. The result is cohesive reproduction of object-based soundtracks.
- Manual Bypass: You can choose to bypass the AccuEQ for your front speakers or all speakers, and manually set the distance, crossover, EQ, and level of each speaker.
Onkyo Original DSP Modes: Onkyo's Original DSP Modes, combined with Dolby Digital & DTS processing, produce more realistic, powerful sound effects for your movie and music sound tracks based on the type of content and your home theater setup. You can choose from the following:
- Orchestra: Suitable for classical or operatic music. This mode emphasizes the surround channels in order to widen the sound image, and simulates the natural reverberation of a large hall.
- Studio-Mix: Suitable for rock or pop music. Listening to music in this mode creates a lively sound field with a powerful acoustic image, like being at a club or rock concert.
- TV Logic: Suitable for TV shows produced in a TV studio. This mode enhances the surround effects to the entire sound to give clarity to voices and create a realistic acoustic image.
- Unplugged: Suitable for acoustic instruments, vocals and jazz. This mode emphasizes the front stereo image, giving the impression of being right in front of the stage.
- Game: The receiver also offers four different Gaming modes - RPG, Action, Rock, and Sports.
- Stereo/All Channel Stereo (AllCh Stereo): In Stereo mode, sound is output from the front left and right speakers and subwoofer. In All Channel Stereo Mode, stereo sound is output from all speakers - ideal for background music.
- Mono/Mono Music: In Mono mode, when the input signal is analog or PCM, the center or the left and right front speakers output the sound in monaural. In Mono Music mode, all speakers output the same sound in mono, so the sound you hear is the same regardless of where you are within the listening room
- Theater-Dimensional (T-D): In this mode, you can enjoy a virtual playback of multichannel surround sound even with only two or three speakers. This works by controlling how sounds reach the listener's left and right ears.
Audio Enhancements: The Onkyo TX-SR3100 receiver provides various audio enhancements to deliver a high-quality listening experience every time.
- CinemaFilter: The CinemaFilter softens overly bright movie soundtracks. Movie soundtracks are typically mixed for a large theater (relative to your home theater) with lots of soft seats and thick curtains on the walls. Home theater settings often lack these high frequency absorbing wall treatments, making the soundtrack sound too bright. CinemaFilter accounts for this and for many movies sounds more natural at home.
- Music Optimizer: The Music Optimizer function enhances the sound quality of compressed music files. The Music Optimizer function only works with PCM digital audio input signals with a sampling rate below 48kHz, analog input signals, and Bluetooth audio.
- Late Night Feature: The Late Night feature limits the dynamic range of Dolby Digital recordings. Limiting the dynamic range makes it easier to find a volume that ensures the quiet sounds are not too quiet and the loud sounds are not too loud for night time listening. This allows you to comfortably listen to without the need to constantly adjust the volume to keep from waking family/neighbors. The choices are: Off, Low, and High. This feature only works with Dolby Digital Encoded software and the depth of the feature will vary based on the individual software package.
- Klipsch Optimized Mode: With Klipsch Optimize Mode, you'll be able to integrate Klipsch Reference and Reference Premiere speakers seamlessly with the Onkyo AV receiver. Simply select the model speakers you’ll be using for each individual channel, and the optimized crossover setting will be automatically applied.
Direct Mode: The Direct listening mode can be selected for all input signals. Processing that affects sound quality is shut down, and sound closer to the original is reproduced. The sound is reproduced with the sound field based on the number of channels in the input signal.
Vocal Enhancer Technology: Emphasize dialog and vocals with the TX-SR3100's Vocal Enhancer technology. By adding the center channel element to your Front Left and Front Right speakers, it allows you to more clearly pick up on conversations during action scenes with loud explosions or quiet moments in heady dramas - no matter what where the volume is set. You can also emphasizes movie dialog and music vocals even more with Vocal Mode, so you can hear voices more easily amongst the movie effects and musical instruments. The Vocal mode can be set from 1 (low) to 5 (high).
Bass Management & Tone Controls: The Onkyo AV receiver offers Double Bass and Tone Control to get the most bass impact out of your system. You can activate the Double Bass function in order to boost bass output even more by feeding bass sounds to the front left/right speakers, center-channel, and powered subwoofer. In addition, you can independently adjust the Bass (20Hz) and Treble (20kHz) of the receiver's Front L/R channels from -10 to +10 dB.
Volume & Level Setup: The Onkyo AV receiver provides the following volume & level settings.
- Maximum Volume: Use this feature to set the receiver's maximum volume level for the Main Zone. This feature is useful to avoid turning the volume too loud by mistake. You can set the Max Volume from 50 to 99, or Off (disabled).
- Power On Volume: Use this feature to set the volume level when the power is turned on in the Main Zone. You can choose between Last (same as the volume when the unit was turned off), Min, or 0.5 to 99.5, or Max.
- My Input Volume: You can set specific source inputs to turn on at a specific volume level when you switch to that particular source. Choose from Last, Min, 0.5 to 81.5, or Max.
- Mute Level: Set the volume lowered from the listening volume when "Mute" is selected. Choose from 0, -40dB, or -20 dB.
- Headphone Level: With this setting, you can specify the headphone volume (-12 to +12dB) relative to the main volume. This is useful if there's a volume difference between your speakers and your headphones.
Analog Audio Outputs: The Onkyo TX-SR3100 is outfitted with the following analog audio outputs.
- Binding-Post Speaker Terminals: There are binding-post terminals for all speaker connections - Front, Center, Surround, & Surround Back/Height. The binding post terminals will accept bare-wire (up to 10AWG), pin-connectors, and banana plugs (single only). Use 4- to 16-ohm speakers (there is an impedance setting in the receiver's menu).
- Dual Subwoofer Outputs: The AV receiver offers two subwoofer outputs to connect dual powered subs for extra bass. The dual outputs are wired in parallel and share the same input signal (they are not discrete).
- Zone B Preouts: The TX-SR3100 offers a set of Zone B preouts, which allows you to connect a separate integrated amplifier or stereo receiver in another room for 2ch stereo playback of the same audio source in both the Main Zone and Zone B. The volume of Zone be will controlled from the separate integrated amp or stereo receiver (not the TX-SR3100).
- Headphone Jack: When headphones are plugged into the full-size 1/4" jack on the front panel, all the speakers are automatically muted. The receiver supports headphones with impedances of 8 to 600-ohm.
eARC (Enhanced Audio Return Channel): This feature of the AV receiver's HDMI monitor output allows audio to be sent from your compatible TV to the receiver through the same HDMI cable already being used to send audio and video to your TV. This eliminates the need for extra cables connected to your television. eARC (Enhanced Audio Return Channel) will support uncompressed audio formats like Dolby TrueHD, Dolby Atmos, DTS:X, & DTS HD Master Audio - where as the previous ARC (Audio Return Channel) was limited to only Dolby Digital, Dolby Digital Plus, DTS, DTS HD, and PCM. * Supported content will be dependent on whether your TV features a HDMI eARC or ARC jack.
Video Section
HDMI 2.1a: Featuring four HDMI inputs and one HDMI output, the Onkyo TX-SR3100 incorporates an advanced video section that features some of the latest HDMI 2.1a specifications; including support for 4K/120 and 8K/60Hz video pass-through (up to 40Gbps), HDCP 2.3 compatibility, BT.2020 Wide Color Gamut, and 4:4:4 Pure Color sub-sampling.
- 4K/120 Hz + 8K/60Hz Pass-Through: All of the Onkyo receiver's HDMI inputs and monitor output support up to 4K (3840x2160 pixels) video @ 120 frames per second, as well as 8K (7680 x 4320) video @ 60 frames per second (up to 40Gbps). The receiver will also pass 4K/60Hz, 1080p/i, 720p, and 480p/ video signals over HDMI.
- HDCP 2.3 Compliant: All of the AV receiver's HDMI inputs and output support HDCP 2.3, which fully complies with the latest copyright protection standard for 4K/HDR video transmission.
- 4:4:4 Color Subsampling: The HDMI inputs and monitor output support RGB, YCbCr 4:4:4, YCbCr 4:2:2, and YCbCr 4:2:0 color subsampling (pixel depth and frame rate will vary). With 4:4:4 color subsampling, luminance (brightness) and chroma (color) are sampled at the same rate; resulting in an RGB color palette as big as the video sampling rate for a video image with more colors, plus greater color accuracy and detail.
- Wide Color Gamut (BT.2020): The BT.2020 color standard delivers a much wider color gamut and represents about 75% of the total visual color spectrum, while the current Rec. 709 color standard selected as the color space for HDTVs and early generation 4K Ultra HDTVs covers only 35% of the total visual color spectrum.
Notes:
- Use at least a premium High Speed 18Gbps HDMI cable for 4K/60Hz video. Use an Ultra High Speed 48Gbps HDMI cable for 4K/120Hz or 8K/60 video.
- Appropriate menu settings are required when 4K or 8K video is to be played back.
HDR (High Dynamic Range): HDR (High Dynamic Range) video provides enhanced picture quality by simultaneously enabling greater detail for both the dark and bright parts of an image. HDR reproduces a greater dynamic range of luminosity or brightness levels, creating greater contrast. This increased contrast reveals the subtle nuances of the image, from detailed blacks and shadows to the brightest whites and colors, plus greater depth. This receiver supports two HDR formats - HDR10, HDR10+ Hybrid Log-Gamma (HLG), & Dolby Vision.
- HDR10: HDR10 is an open standard and currently the most popular HDR format on the market. It uses static metadata at the start of a movie to tell the receiver and your TV that the video content is encoded using HDR.
- HDR10+: HDR10+ is a new open standard that leverages dynamic metadata to produce enhanced contrast and colors on an expanded range of televisions. HDR10+ incorporates dynamic metadata that allows the adjustment of brightness levels on a scene-by-scene or even frame-by-frame basis. By applying individualized tone mapping to each scene, HDR10+ delivers an incredible viewing experience. The picture quality offers an enhanced visual experience with more detailed expressions, brighter shadow areas and more accurate color renderings that stay true to the creator's original intent.
- Hybrid-Log Gamma: HLG (Hybrid-Log Gamma) is primarily designed for live video feed and over-the-air broadcasts. It uses no pre-encoded metadata and is backwards compatible with SDR. HLG's native compatibility allows much of today's existing SDR infrastructure to be re-used for HDR in the future.
- Dolby Vision: Unlike HDR 10 which contains static metadata and HLG which uses no metadata, Dolby Vision uses dynamic metadata technology which sets individual color and brightness levels for each and every scene. Dolby works directly with filmmakers at major Hollywood studios to create superior HDR video masters of blockbuster movies.
Enhanced Gaming: HDMI 2.1 enhancements for gamers include 4K/120Hz HDR pass-through that enables ultra-fast motion; VRR (Variable Refresh Rate) which eliminates lag, stutter, and frame-tearing for fluid gameplay; ALLM (Auto Low Latency Mode) to optimize latency from source to screen; plus QFT (Quick Frame Transport) which limits lag for a smoother video gaming experience.
- 4K/120Hz Pass-Through: 4K/120Hz pass-through enables ultra-fast motion UHD images to be crisp and razor-sharp; and sports, action movies, and high-performance gaming benefit significantly.
- Variable Refresh Rate (VRR): Support for Variable Refresh Rate (VRR) allows the TV to adapt to certain Game console's frame rate. This helps to reduce or eliminate lag, stutter and frame tearing for more fluid and better detailed gameplay.
- Auto Low Latency Mode (ALLM): The receiver will enter ALLM (Auto Low Latency Mode) when it detects a gaming signal from a compatible device (such as a Xbox One) and allows for a smooth, lag-free gaming experience.
- Quick Frame Transport (QFT): Quick Frame Transport (QFT) transmits each frame at a higher rate to decrease "display latency", which is the amount of time between a frame being ready for transmission in the GPU and that frame being completely displayed. Enjoy reduced latency for smoother, tear-free entertainment experience.
HDMI Through: When enabling the HDMI Through function, regardless of whether the AV receiver is "On" or in "Standby", both audio/video streams from an HDMI input will be output to your television, via the receiver HDMI monitor output. You can select between three HDMI Through modes.
- Auto: Detects the signal and automatically selects the input sources.
- Source: Selects the HDMI input source for which the HDMI Through function in enabled.
- Last: The HDMI Through function is activated on the input source selected at the time of setting the AV receiver to the "standby" mode.
Other HDMI Features: The TX-SR3100 AV receiver's HDMI connectivity also offers 3D video pass-through, Deep Color & x.v. Color support, as well as an auto LipSync function.
- Deep Color & x.v.Color Support: The AV receiver supports Deep Color and x.v.Color content, which can display a larger color range than standard-definition schemes. The result is a more lifelike, vibrant picture
- 3D-Ready: All HDMI jacks will accept 3D video from your 3D-ready Blu-ray player and output the video signal in 3D to your 3D-ready flat-panel television.
- AV Sync: The AV Sync feature can automatically synchronize HDMI audio and video (for any HDMI jack) that has gotten out of sync due to the complex digital video processing being performed by your HDMI-compatible TV. With AV Sync, the audio delay required to synchronize the audio and video is calculated and applied automatically by the AV receiver. You can also manually correct the audio delay using AV Sync.
Video Select: It is possible to play audio and video from different sources simultaneously. For example, you can play audio via Bluetooth and video from your Blu-ray player. This function is only effective when an input with audio only (Bluetooth or Tuner) has been selected initially.
Bluetooth & Tuner
Bluetooth Audio Streaming: The Onkyo TX-SR3100 is equipped with built-in Bluetooth 5.0 with support for wireless audio streaming (A2DP) and playback control (AVRCP). You'll be able to wirelessly stream stored music, music apps, and other audio content from your Bluetooth-enabled source device (such as your smartphone, tablet, computer, or laptop) to the Onkyo receiver. The receiver supports Bluetooth's standard SBC codec, as well as Apple's AAC codec. You can use the receiver's IR remote control to operate basic playback functions, like Play/Pause & Previous/Next Track. Advanced music browsing will still need to be handled from your Bluetooth-enabled device. The receiver will also display song/artist information on its front-panel LCD and through its on-screen on your HDMI-connected TV (Album Art is not supported).
- Up to eight Bluetooth source devices can be remembered by the TX-SR3100, so family members as well as friends can enjoy their favorite tracks (only one device can be used at a time).
- The receiver can even be setup to automatically re-connect with previously paired devices, as well as turn on automatically when you start streaming audio from a Bluetooth source device.
- The receiver's Bluetooth wireless range is approximately 48'.
AM/FM Tuner: With the built-in tuner you can enjoy AM and FM radio stations. You can store your favorite stations as presets for quick selection. You can store a combination of up to 40 of your favorite FM/AM radio stations as presets.
USB-A Power Port: There is also a rear-panel USB-A port that can be used to power a streaming media player or charge the battery of your smartphone or tablet device. The USB-A port is rated at 5V/1A. The USB-A port can also be used for future firmware updates.
- The USB-A port does not support media playback from USB MSC devices (such as thumbdrives or HDDs), USB hubs, and card-readers.
- The USB-A port does not support media playback from smartphone or tablet devices.
- The USB-A port does not support media playback from laptops and desktop computers.
Remote & Convenience Features
IR Remote: The Onkyo TX-SR3100 comes with an IR remote control for full wireless operation of the AV receiver.
HDMI-CEC (Consumer Electronic Control): HDMI-CEC provides linked control between HDMI-CEC connected devices. Supported HDMI-CEC functions include auto input switch when a Blu-ray player begins playback, switching of audio output between the TV and this receiver or adjusting the receiver's volume using the remote controller of your TV, as well as automatically switching the receiver to standby when the TV is turned off.
On-Screen Menu w/ Setup Assistance (HDMI only): The Onkyo AV receiver offers an on-screen (GUI) menu system through its HDMI output. The simple on-screen display combines text and graphics that make setup and other operations extremely easy. The initial setup assistant takes you step-by-step through speaker configuration, source connection, & remote programming.
- Initial setup requires that the receiver be connected to your TV via HDMI for display of the on-screen menu.
- Many of the receiver's setup functions can only be found via the on-screen menu and not the front-panel display.
Name Edit: You can enter a custom name for each individual input selector and radio preset for easy identification. When entered, the custom name will appear on the display. This function cannot be used for the AM/FM tuner and Bluetooth.
Auto Standby & Sleep Timer: The receiver features a programmable Auto Standby function & programmable Sleep Timer. The AV receiver will automatically go into Standby mode, if there is no operation for 20 minutes with no audio/video signal input. From the remote, you can set the unit to automatically turn off after 30, 60, or 90 minutes.
Firmware Updates: Future firmware updates are available on the Onkyo website and can be downloaded onto a USB thumbdrive connected to your computer and then uploaded to the Onkyo receiver via its rear-panel USB-A port. The USB thumbdrive should be at least 1GB and formatted in FAT16 or FAT32. It takes about 20 minutes for the firmware update procedure to complete.
