THX Loudness Plus

THX Loudness Plus is a new volume control technology featured in THX Ultra2 Plus™ and THX Select2 Plus™ Certified receivers. With THX Loudness Plus, home theater audiences can now experience the rich details in a surround mix at any volume level. A consequence of turning the volume below Reference Level is that certain sound elements can be lost or perceived differently by the listener. THX Loudness Plus compensates for the tonal and spatial shifts that occur when the volume is reduced by intelligently adjusting ambient surround channel levels and frequency response. This enables users experience the true impact of soundtracks regardless of the volume setting. THX Loudness Plus is automatically applied when listening in any THX listening mode. The new THX Cinema, THX Music, and THX Games modes are tailored to apply the proper THX Loudness Plus settings for each type of content.

Digital Processing Crossover Network

Digital Crossover provides a separate routing system by splitting the audio signal into separate frequency bands optimized for each speaker driver. It provides a fine, three- dimensional sound field that extend each driver’s performance to the uppermost. With its built-in time alignment function, this system also adjusts the sound shifting that occurs when there is a physical offset between sound drivers. At a digital processing level, it corrects this offset by delaying the related audio signal.

Although this function is meant for speakers without crossover network, it can also be used with bi-amped speakers.

In this case, set the crossover network on the AV receiver as the speakers’ built-in network frequency is not used.

Tip

This setting can be done while listening to an audio source.

Press MODE/D (Blue) to switch from the current audio source to test noises. Pressing MODE/D (Blue) again or the cursor buttons

will stop the test noises and switch back to the original audio source.

Note

This setting can only be made when “Speakers Type (Front)” is set to “Digital Crossover” (page 59).

Crossover

`250Hz”, “320Hz”, “400Hz”, “500Hz, “630Hz”, “800Hz”, “1000Hz”, “1250Hz”, “1600Hz”, “2000Hz”, “2500Hz”, “3200Hz”, “4000Hz”, “5000Hz

Output Band for Test

`High + Low, High, Low:

Select the output for the audio signal.

Tip

Pressing MODE/D (Blue) button plays band-limited test noises which center on the specified frequency.

We recommend choosing a crossover value that creates no volume difference between “High” and “Low”.

Note

Refer to your speaker manual when setting without the use of test noises.

Cutoff frequencies of the woofers’ low-pass filter (LPF) and the tweeters’ high-pass filter (HPF) are set according to the frequency specified for “Crossover”.

Overlap

`No

`Yes

With this setting, a frequency band near the specified crossover frequency is output by both tweeters and woofers. Based on the frequency selected for “Crossover”, the cutoff frequency of the low-pass filter (LPF) will be set to 1/3 octave up and that of the high-pass filter (HPF) to 1/3 octave down. Example: With a “Crossover” of “3200Hz”, the cutoff frequency of the woofers’ LPF will be “4000Hz”, and the tweeters’ HPF will be “2500Hz”.

En-63

Advanced Operations

Tip

Sounds processed by Digital Processing Crossover Network are played.

You can switch from the current audio source to test noises by pressing MODE/D (Blue).

High Level, Low Level

`–6.0dBto 0.0dB to +6.0dB in 0.5 dB steps

With this setting, you can set the volume of tweeters and woofers.

Tip

Sounds processed by Digital Processing Crossover Network are played.

You can switch from the current audio source to test noises by pressing MODE/D (Blue).

High Phase, Low Phase

`0º

`180º:

With this setting, you can adjust the phase of tweeters and woofers.

Tip

Sounds processed by Digital Processing Crossover Network are played.

You can switch from the current audio source to test noises by pressing MODE/D (Blue).

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Onkyo TX-NR818 instruction manual En-63, Digital Processing Crossover Network

TX-NR818 specifications

The Onkyo TX-NR818 is a powerful network receiver that stands out in the crowded field of home audio equipment. Aimed at home theater enthusiasts, this 7.2-channel AV receiver delivers superior sound quality, advanced connectivity options, and a suite of features designed to enhance the listening experience.

One of the standout features of the TX-NR818 is its ability to decode high-resolution audio formats. It supports lossless formats like FLAC and ALAC up to 192 kHz/24-bit, ensuring that audiophiles can enjoy music as it was meant to be heard. With built-in support for Dolby TrueHD and DTS-HD Master Audio, this receiver can handle complex surround sound setups, making it ideal for movies and gaming.

The TX-NR818 is also equipped with advanced connectivity options, including eight HDMI inputs and two outputs. This allows users to connect multiple devices, such as Blu-ray players, gaming consoles, and streaming devices, all while supporting 3D video and 4K upscaling. The MHL (Mobile High-Definition Link) input even lets you connect your smartphone or tablet directly, ensuring seamless playback of mobile content on your big screen.

For those who appreciate modern convenience, the Onkyo TX-NR818 features built-in Wi-Fi and Bluetooth capabilities. This allows users to stream music wirelessly from their smartphone or tablet using services like Spotify and Pandora, or directly from their home network. The receiver is also compatible with the Onkyo remote app, providing intuitive control from mobile devices.

Another key feature is the unique AccuEQ room calibration technology, which tailors the receiver’s audio output to the specific characteristics of your home theater space. This automated setup process optimizes speaker placement and equalization, delivering a more balanced and immersive sound experience.

Additionally, the TX-NR818 supports multiple zones, allowing users to enjoy different audio in various rooms of the house. This multi-room capability ensures that every part of your home can enjoy the benefits of high-quality sound.

In summary, the Onkyo TX-NR818 combines advanced audio technologies, a flexible connectivity suite, and user-friendly features, making it a prime choice for anyone looking to elevate their home theater experience. Its blend of performance, versatility, and modern streaming options truly sets it apart in today’s competitive AV receiver market.