I received the latest versions of the 861v6, 808.3, G68 and G61R Data Sheets last night. This may be because I complained directly to Meridian about the absence of any mention of Apodizing in the newly released 861v6 Data Sheet

The 861v6 Data Sheet is dated January 25th and is now a 4-page document as opposed to the original 2-page one. Being honest, even now the changes are very subtle and require a lot of reading to figure out the differences

I've gone over the 861v6 Document in detail and compared it to the CES Release and then to the 861v4 Data Sheet (dated 2003!!! Hard to believe they haven't updated it since then) I've also compared the statements in there with all of the Q&A's over the past few years and tried to boil the new Data Sheet down into the "New" Claims from Meridian

So, armed with my full quota of 100 grains of Salt, here is what I found to be different

Quote
Additional performance enhancements include redesigned oscillators and clocking circuitry, and unique proprietary ‘apodising` upsampling filter pioneered in the 808.2.

The 861 embodies the very latest developments in digital audio, including high sample-rate capability throughout. Meridian, famous for smooth-sounding digital audio components, has made a major breakthrough with a memory- based de-jittering system that renders the processor almost entirely immune to input-signal quality - making it by far the sweetest and most open-sounding controller that Meridian has built to date.

Digital signals such as PCM and Dolby Digital (if derived from a source with digital outputs such as the 800 Reference Optical Disc Player) are upsampled to 24-bit, 96kHz sampling using Meridian`s unique ‘apodising` filter and de-jittered
by a powerful 150MIPS DSP processor and FIFO memory buffer, while analogue signals are transferred into the digital domain via superb-quality high-sample-rate 24-bit Delta-Sigma A/D converters.

The processor also performs improved high-resolution up-sampling on signals coming in at lower sampling rates, de-jittering them and significantly improving their audio quality. Meridian`s acclaimed ‘apodising` upsampling filter and redesigned oscillators and clocking structure significantly improve audio quality for all sources managed by the 861 V6.

Processing
The Meridian 861 is a digital processor, and all signals are handled within the digital domain. The processing engine can consist of between two and ten modular processor cards, each offering an astonishing 300 MIPS of processing power and housing multiple ultra-fast processors.

In each DSP core, the incoming signals are processed using a variety of proprietary algorithms to generate a range of output signals.

Last edited by Ronnie Hurley; 2010-01-30 09:30.
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