THX speakers

[sptrout]

Since some you apparently enjoyed reading the THX article in my earlier post, I thought I would post some other great reference sites.

Reference Level:
Here is a link to a post by Mr. Audyssey himself (Prof. Chris Kyriakakis, CTO of Audyssey and longtime business partner with Mr. THX Prof. Tomlinson Holman (the "T" "H" of THX) that provides a concise description of Reference Level: http://www.avsforum.com/avs-vb/showpost.php?p=16308139&postcount=14102 (BTW - - Chris is a frequent writer in the Audyssey Forum over at AVS and answers many questions directly from individuals.)
A copy & paste from that link:
"Reference level is defined as the level used in film mixing. This is a standard used in all film mixing.

Reference is defined as 85 dB SPL (C-weighted, slow) at the listening position using –20 dBFS (FS= full scale) band limited pink noise (between 500-2000 Hz). Every studio and movie theater is calibrated this way and this provides the capability for 85 + 20 = 105 dB max.

This 85 dB noise is a little too scary for home users, so manufacturers provide a test signal that is 10 dB lower (–30 dBFS) and so home theaters are calibrated to measure 75 dB SPL for that noise. The result is the same when the master volume is set to 0 (i.e. 30 dB above 75 dB = 105 dB max)."

"Recommendations for Surround Sound Production", a white paper written by the Recording Academy's Producers & Engineers Wing. (These are the big boys that mix for movies and music.) Note that this paper was written for sound mixers and tells them how to mix audio for both movie theaters and home theaters. A very educational read. Note that is was written in 2004 before Blu-ray and the new uncompressed formats, but the basic theories presented still apply. http://content.grammy.com/PDFs/Recording_Academy/Producers_And_Engineers/SurroundRecommendations.pdf

Here are a few links to posts written over at Blu-ray.com by one of their Moderators. Very good material on how to setup systems. I do not know the background of the Moderator, but as you will read, he knows what he is talking about.
A Guide to Subwoofers: Characteristics, Placement, & Adjustments
http://forum.blu-ray.com/showthread.php?t=43669

A Guide to Subwoofers (Part II): Standing Waves & Room Modes
http://forum.blu-ray.com/showthread.php?t=48286

A Guide to Bass Management
http://forum.blu-ray.com/showthread.php?t=95817

Calibrating Your Audio With an SPL Meter
http://forum.blu-ray.com/showthread.php?t=38765

Understanding & Using Test Tones To Calibrate Your System
http://forum.blu-ray.com/showthread.php?t=95710

 

[mtrycrafts]

Since some you apparently enjoyed reading the THX article in my earlier post, I thought I would post some other great reference sites.

Reference Level:
Here is a link to a post by Mr. Audyssey himself (Prof. Chris Kyriakakis, CTO of Audyssey and longtime business partner with Mr. THX Prof. Tomlinson Holman (the "T" "H" of THX) that provides a concise description of Reference Level: http://www.avsforum.com/avs-vb/showpost.php?p=16308139&postcount=14102 (BTW - - Chris is a frequent writer in the Audyssey Forum over at AVS and answers many questions directly from individuals.)
A copy & paste from that link:
"Reference level is defined as the level used in film mixing. This is a standard used in all film mixing.

Reference is defined as 85 dB SPL (C-weighted, slow) at the listening position using –20 dBFS (FS= full scale) band limited pink noise (between 500-2000 Hz). Every studio and movie theater is calibrated this way and this provides the capability for 85 + 20 = 105 dB max.

This 85 dB noise is a little too scary for home users, so manufacturers provide a test signal that is 10 dB lower (–30 dBFS) and so home theaters are calibrated to measure 75 dB SPL for that noise. The result is the same when the master volume is set to 0 (i.e. 30 dB above 75 dB = 105 dB max)."

"Recommendations for Surround Sound Production", a white paper written by the Recording Academy's Producers & Engineers Wing. (These are the big boys that mix for movies and music.) Note that this paper was written for sound mixers and tells them how to mix audio for both movie theaters and home theaters. A very educational read. Note that is was written in 2004 before Blu-ray and the new uncompressed formats, but the basic theories presented still apply. http://content.grammy.com/PDFs/Recording_Academy/Producers_And_Engineers/SurroundRecommendations.pdf

Here are a few links to posts written over at Blu-ray.com by one of their Moderators. Very good material on how to setup systems. I do not know the background of the Moderator, but as you will read, he knows what he is talking about.
A Guide to Subwoofers: Characteristics, Placement, & Adjustments
http://forum.blu-ray.com/showthread.php?t=43669

A Guide to Subwoofers (Part II): Standing Waves & Room Modes
http://forum.blu-ray.com/showthread.php?t=48286

A Guide to Bass Management
http://forum.blu-ray.com/showthread.php?t=95817

Calibrating Your Audio With an SPL Meter
http://forum.blu-ray.com/showthread.php?t=38765

Understanding & Using Test Tones To Calibrate Your System
http://forum.blu-ray.com/showthread.php?t=95710

You have some interesting links there
The one about speaker calibration also has the RS meter correction table there.

 

[jmhc]

Since some you apparently enjoyed reading the THX article in my earlier post, I thought I would post some other great reference sites.

Reference Level:
Here is a link to a post by Mr. Audyssey himself (Prof. Chris Kyriakakis, CTO of Audyssey and longtime business partner with Mr. THX Prof. Tomlinson Holman (the "T" "H" of THX) that provides a concise description of Reference Level: http://www.avsforum.com/avs-vb/showpost.php?p=16308139&postcount=14102 (BTW - - Chris is a frequent writer in the Audyssey Forum over at AVS and answers many questions directly from individuals.)
A copy & paste from that link:
"Reference level is defined as the level used in film mixing. This is a standard used in all film mixing.

Reference is defined as 85 dB SPL (C-weighted, slow) at the listening position using –20 dBFS (FS= full scale) band limited pink noise (between 500-2000 Hz). Every studio and movie theater is calibrated this way and this provides the capability for 85 + 20 = 105 dB max.

This 85 dB noise is a little too scary for home users, so manufacturers provide a test signal that is 10 dB lower (–30 dBFS) and so home theaters are calibrated to measure 75 dB SPL for that noise. The result is the same when the master volume is set to 0 (i.e. 30 dB above 75 dB = 105 dB max)."

"Recommendations for Surround Sound Production", a white paper written by the Recording Academy's Producers & Engineers Wing. (These are the big boys that mix for movies and music.) Note that this paper was written for sound mixers and tells them how to mix audio for both movie theaters and home theaters. A very educational read. Note that is was written in 2004 before Blu-ray and the new uncompressed formats, but the basic theories presented still apply. http://content.grammy.com/PDFs/Recording_Academy/Producers_And_Engineers/SurroundRecommendations.pdf

Here are a few links to posts written over at Blu-ray.com by one of their Moderators. Very good material on how to setup systems. I do not know the background of the Moderator, but as you will read, he knows what he is talking about.
A Guide to Subwoofers: Characteristics, Placement, & Adjustments
http://forum.blu-ray.com/showthread.php?t=43669

A Guide to Subwoofers (Part II): Standing Waves & Room Modes
http://forum.blu-ray.com/showthread.php?t=48286

A Guide to Bass Management
http://forum.blu-ray.com/showthread.php?t=95817

Calibrating Your Audio With an SPL Meter
http://forum.blu-ray.com/showthread.php?t=38765

Understanding & Using Test Tones To Calibrate Your System
http://forum.blu-ray.com/showthread.php?t=95710

Good sunday reading stuff, thank you. SPTROUT

 

[jmhc]

Ok guys, I need a subjective opinion now, I guess it is clear that I'm not an audio expert, so please, patience.

My room has an area a little less than 3000 cubic feet (close to the THX
Ultra2 specs but too much for the THX select2), I hooked up my Onkyo
TX-SR805 (THX ULTRA2) receiver with Klipsch RF-82 (Non-THX) home theater system, sorry I couldn't help it I just loved Klipsch sound and when I buyed this speakers I wasn't paying attention to the THX certification, but don't fell mad about it because at that time I couldn't affort Klipsch THX system anyway.

So, do you think this speaker system is good enough for this receiver?? I mean do you think this system can achive in my room the performace that a THX Ultra2 certifed speakers would?? or you think I should buy new babies??.

Thank you again guys

 

[bandphan]

Ok guys, I need a subjective opinion now, I guess it is clear that I'm not an audio expert, so please, patience.

My room has an area a little less than 3000 cubic feet (close to the THX
Ultra2 specs but too much for the THX select2), I hooked up my Onkyo
TX-SR805 (THX ULTRA2) receiver with Klipsch RF-82 (Non-THX) home theater system, sorry I couldn't help it I just loved Klipsch sound and when I buyed this speakers I wasn't paying attention to the THX certification, but don't fell mad about it because at that time I couldn't affort Klipsch THX system anyway.

So, do you think this speaker system is good enough for this receiver?? I mean do you think this system can achive in my room the performace that a THX Ultra2 certifed speakers would?? or you think I should buy new babies??.

Thank you again guys

Again, you dont need the THX spec to live by. Speakers, subs, and amps have specs, if those specs apply to your needs, so be it. Manufactures pay to have their gear tested by THX for certification. Your speakers will more than fill your room with sound with your avr