Vintage Asylum

Classic gear from yesteryear; vintage audio standing the test of time.

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RE: Sure

Posted by Jim McShane on March 22, 2009 at 10:39:05:
Have you ever read the requirements? To make the statement you made is simply propagating misinformation IMHO. Here is a bit of what's involved, lifted from another site:

"Not a standard by itself, THX Home Cinema aims at delivering cinema-quality picture and sound to the home. At the same timeâ€¦

Many do not have a true understanding of what the THX certification system and related technology is all about, nor what the different labels found on home theater THX certified gear really mean, yet to the 'everyday consumer', the 'THX' label signifies that the highest standards have been used.

Expressed differently, the THX Home Cinema certification program has been designed such as to fit the different surround sound technologies in their totality, into high-end home theater systems.

This means that THX is all about the technically competent and correct reproduction of any video and audio content - one that closely replicates the monitoring environment in the studio."

There is no claim made regarding specific "hi-fi" performance, only the claim that it mimics the studio. Applying typical hi-fi audio standards to it is like rating lawn mowers by their 0-60 MPH acceleration times!

Continuing...

"Major aspects of the THX Home Cinema certification program include:

*Re-equalization to compensate for the differing tonal balances that are appropriate in home theaters versus movie theaters, thus reducing the normally higher treble associated with the latter.

*Timbre matching to complement the tonal qualities of the front and rear speakers to create a more uniform surround soundstage.

*Decorrelation of the surround channels in Dolby Pro Logic surround systems. The scope is to introduce minor diversity to the mono-surround channel serving the two rear speakers in this surround format, thus leading to a more diffused feel. This helps avoid the collapse of the centered rear soundfield produced by this monaural signal to the speaker closest to the listener. The latest THX Home Cinema certified receivers include adaptive decorrelation that automatically switches off the related circuitry when not required e.g. in Dolby Digital.

*Bass management based on a precise crossover cut-off point at exactly 80Hz, and a defined sub-woofer â€˜slopeâ€™ driver response. While THX recommends using a sub-woofer and setting all other speakers to 'small' to be able to place the subwoofer at the best sounding position in the room, at the same time, it also supports other options, including that of mixing the bass information from the left and right channels with the sub woofer channel.

*Amplifier Specs that are much tougher than on non-THX certified gear; these include the ability to drive low impedance (3.2 Ohms) speakers while still producing a volume level of 105dB.

*A THX reference level (of 75dB) that aims at reproducing the same level, at which the movie was mixed in the studio.

*THX Optimizer or Optimode for DVD movie releases. This places a set of test patterns on the disc to enable the home theater enthusiast to tweak the video display to the same settings as used during the production stage."

There's a lot more about the process at the link I posted.

Why don't you post a list of the products you claim are THX certified - and list the standard they claim certifies them - but don't meet your standards?