Ok found it, along with whats ISF thingie:
With its continued excellence in sound reproduction, Onkyo has once again created a powerful, very versatile home theater receiver for the home theater enthusiast. With high-end features, exceptional surround-sound reproduction, and 1080p HD upconversion, the TX-SR876 THX Ultra2 7 x 140W 7.1-Channel Home Theater Receiver will take your home theater experience to new heights. It features 4-HDMI inputs and 2-HDMI (Ver. 1.3a) outputs enabling an effortless, high-bandwidth transfer of video and audio signals to the latest HDTV 1080p displays. In addition, Onkyo includes its exclusive Burr-Brown 192KHz/24-bit audio processing technology to create a wider, more enveloping surround-sound experience. It features built-in Dolby Digital EX, Dolby Pro-Logic IIx, Dolby Digital Plus, Dolby TrueHD, DTS-ES, DTS Neo:6, DTS 96/24, DTS-HD (Master Audio/High-Resolution Audio), THX Ultra2 Plus Certification with THX Loudness Plus technology.
Moreover, this powerful receiver presents superb functionality that will be hard to match. Onkyo exclusives like High Current Power Supply (H.C.P.S.), three TI Aureus DSP chips, Dual Push-Pull Amplification, Wide Range Amplifier Technology (WRAT), Audyssey MultEQ XT Room Correction, VLSC Circuitry, and Optimum Gain Volume Circuitry offer the cleanest signal on the market. With multi-room outputs, XM/Sirius and HD radio capabilities, and connectivity to virtually any A/V source or playback component you can imagine, your entertainment choices are endless with the TX-SR876.
Key Features
• HDMI Switching x4 with 1080p HQV Reon-VX Upscaling
If you're looking to pump high-definition DVD playback into your HD displays or projectors, this receiver will do the job. It has a high-bandwidth processor capable of upconverting 720p/1080i and 1080p through the HDMI (Ver. 1.3a) output. The 1080p HD upconversion is achieved with a powerful HQV Reon-VX processing chip. HDMI supports standard, enhanced, or high-definition video, plus multi-channel digital audio on a single cable.
• High Current Power Supply (H.C.P.S.)
It features a Massive High Power Transformer for audio and video processing, which shields out unwanted magnetic fields. Built with over-sized capacitors capable of delivering breathtaking headroom, with an outstanding audio signal-to-noise.
• Three-Stage Inverted Darlington Circuitry
Three-stage inverted Darlington circuitry helps reduce distortion at the output stage. In conjunction with Push-Pull Amplification, this receiver realizes a highly efficient drive capability.
• 7.1-Channel and Digital Audio Decoding
This powerful receiver uses specific Dolby Digital and DTS codecs to reproduce an enveloping 7.1-Channel surround sound experience. The unit encodes Dolby Digital, Dolby Digital EX, Dolby Digital Plus, Dolby TrueHD, Dolby Pro Logic II, Dolby Pro Logic IIx, DTS, DTS 96/24, DTS-ES Discrete/Matrix, DTS Neo:6, DTS-HD Master Audio/High-Resolution Audio, XM HD Surround, THX Ultra2 Plus Certification with THX Loudness Plus technology.
• THX Ultra2 Certified
THX Ultra2 specifications are designed to address the growing needs of the newest generation of home entertainment enthusiasts with smaller home theater environments. THX Ultra2 receivers also feature proprietary THX technologies, which accurately translate movie soundtracks for home theater playback. THX Loudness Plus, improves how you experience movies at lower volume levels. To counteract the loss or distortion of ambient and bass sounds at lower volumes.
• Audyssey MultEQ XT
For enhanced room acoustics, Onkyo's Audyssey MultEQ XT technology is included with this powerful receiver. Gathering measurements from up to eight positions, this technology detects speakers, and then sets levels, delays and crossovers, as well as measuring room acoustics. It is designed to work with home theater systems to create a larger, fuller listening area without distorting the sound.
• Audyssey Dynamic EQ
When the output volume is adjusted, this feature selects the best possible frequency response and surround sound levels with minimal audio distortion.
• Image Science Foundation (ISF)
This unique, video hub-type receiver employs ISF video calibration that offers the ability to reproduce exquisitely sharp video with superb color balance. It ensures that every input source is independently calibrated for your connected, compatible HD display. Moreover, it has been shown to improve energy savings in displays and projectors by up to 50%.
• Wide Range Amplifier Technology (WRAT)
It's the Wide Range Amplifier Technology (WRAT) that will fill your room with noise-free, impressively powerful, true-to-life sound. With a broader frequency range and lower harmonic noise entering the signal path, it's perfectly suited for new high resolution DVD-Audio and SACD formats.
• Vector Linear Shaping Circuitry (VLSC)
This receiver features Onkyo's exclusive Vector Linear Shaping Circuitry to mitigate signal noise. This exquisite digital-to-analog conversion circuitry includes five Burr-Brown 192KHz/24-bit audio DAC's, capable of reproducing an outstanding dynamic range of 123dB.
• Optimum Gain Control Circuitry
This receiver has the ability to adjust the gain allowing for less noise contamination especially at lower volumes.
• HD Component Video
With playback specifications that meet the standards of professionals, it features a component video output with 1080i high-definition upconversion.
• RIHD System Control
RIHD enables seamless system integration with other leading brand-name devices, including those with Panasonic VIERA Link2 and Toshiba CE-Link capability, and selected Sharp displays. With one remote control, you can control several functions, including Standby, Volume Command, and Direct Change.
• XM and Sirius Satellite Radio Ready
Simply plug an XM Passport System into the receiver's XM-Ready receiver, and activate the XM (optional) service to start receiving uninterrupted radio programming of your choice. Now, in conjunction with Neural Surround, XM Satellite Radio offers XM HD Surround, which provides 5.1-channel surround sound on selected programming.
• Remote Interactive (RI) Interface
Remote Interactive (RI) capability enables you to simply connect your iPod to your receiver through Onkyo's RI Dock option for the iPod (DS-A2). Your iPod effectively becomes another Onkyo component flowing through the receiver.
• Multi-Room Capabilities
With Powered Zone 2 and Zone 3 line outputs, this unit is capable of reproducing surround sound entertainment in your main room while you play back a completely different stereo source in 2 other zones.
• Color-Coding System
Onkyo takes the guesswork out of the installation process with an easy-to-use surround-sound channel color-coding system.