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Author Topic: A question for D2 owner Antonio Marcheselli Phenomenal Film Handler Posts: 1260 From: Florence, Italy Registered: Mar 2000 posted 03-20-2005 09:01 AM                        Hi I need to know if the ISO curve that is shown in the D2 curve for stage channels has the 10.000Hz Rolloff or not. If I remember correctly (I saw it once) it was the classic ISO curve with the 3dB rolloff at 40Hz, then 3dB per octave at 2.000Hz and then... how many dB per octave after 10.000Hz? Thanks a lot!! Antonio  |  IP: Logged Gilbert Travin Expert Film Handler Posts: 101 From: Villeurbanne / France Registered: Jan 2004 posted 03-23-2005 04:05 AM                        Hi Antonio ! Just a question what does "D2" mean ? I know "Bode diagram", slope of X dB per decade, but not "D2" ! I can help you if I know the kind of filter you call "D2" !  |  IP: Logged Antonio Marcheselli Phenomenal Film Handler Posts: 1260 From: Florence, Italy Registered: Mar 2000 posted 03-23-2005 08:34 AM                        Hi Gilbert Sorry for the confusion, the D2 is the new THX spectrum analyzer that has been made after the R2! I need to know the ISO curve that is displayed on the WinRTA software!!! Bye A  |  IP: Logged Gilbert Travin Expert Film Handler Posts: 101 From: Villeurbanne / France Registered: Jan 2004 posted 03-23-2005 10:00 AM                        OK Antonio Sorry, I don't know this analyser and this software Generally with analog low-pass filters, we have slopes at -6 dB, -12 dB or -18 dB per octave (resp. -20db, -40 dB and -60 dB per decade). With software filters "anything" is possible ! But a too much important slope generate signal amplitude oscillations and important phase rotations, it is not good . Bye  |  IP: Logged Gordon McLeod Film God Posts: 9532 From: Toronto Ontario Canada Registered: Jun 99 posted 03-23-2005 08:17 PM                     Since it is designed to do THX recerts it should show the same parameters as the R2 and it is the standard ISO curve  |  IP: Logged Antonio Marcheselli Phenomenal Film Handler Posts: 1260 From: Florence, Italy Registered: Mar 2000 posted 03-24-2005 04:04 PM                        Thank you Gordon Has anyone a shoot of the screen of WinRTA? Bye A  |  IP: Logged Brad Miller Administrator Posts: 17775 From: Plano, TX (36.2 miles NW of Rockwall) Registered: May 99 posted 03-24-2005 07:16 PM                     Only for you Antonio. click here  |  IP: Logged Antonio Marcheselli Phenomenal Film Handler Posts: 1260 From: Florence, Italy Registered: Mar 2000 posted 03-24-2005 08:44 PM                        THANK you Brad! Ciao Antonio  |  IP: Logged Mark Gulbrandsen Resident Trollmaster Posts: 16657 From: Music City Registered: Jun 99 posted 03-25-2005 08:12 AM                     So Brad, Did you actually purchase one? Mark  |  IP: Logged Brad Miller Administrator Posts: 17775 From: Plano, TX (36.2 miles NW of Rockwall) Registered: May 99 posted 03-25-2005 03:13 PM                     Yup, been very pleased with it.  |  IP: Logged

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