A few days ago I purchased the PC app for Audyssey and boy what a difference is that compared to the iPad app!!
Below are the key things that I was not certain of before purchasing the app and all of this is actually true:
1) You can create CUSTOM CURVES FOR INDIVIDUAL CHANNELS (FL, FR, RL, RR, Sub etc). (my Denon x6500h does not support different curves for different subs, but I guess in newer Denon/Marantz models you can create different curves for each sub. I use SVS app to fine tune each sub’s curve).
2) APPLY YOUR CUSTOM FILTERS ONLY, BYPASSING ALL AUDYSSEY’S AUTO CORRECTION. Just make at least one measurement of the room and then disable it (without doing at least one measurement Audyssey will not be activated even if you transfer your custom curves to AVR).
3) DISABLE AUTO FILTERS ONLY FOR SPECIFIC CHANNEL(S): do the 6, 8 or more measurements as recommended, activate them in the MultiEQ-X app, and then on the “filter settings” menu set the “High Frequency EQ limit” to “Limit measured” (not “limit all”) and the cutoff to “20Hz” for the channel(s) to which you do not want any auto filters applied. This is another huge upgrade from iPad app: the iPad app always applies “limit all”, which means that both auto-measured and your custom filters for this channel will not be applied above this frequency, whereas in the MultEQ X app you can tell it not to apply only auto-generated filters while applying the ones you generated, including PEQ filters, different roll-off slopes etc.
4) Not only are there unlimited PEQ FILTERS for each channel/pair of channels, but also LOW SHELF/ HIGH SHELF, low/high pass and other filter types (with which I have not experimented with yet)
5) A/B COMPARISON with this app IS VERY EASY!! (see footnote) You can specify which of your custom filters you want to apply to REFERENCE curve only and which to FLAT curve only, and which for both. So for instance, you can apply all filters for both curves and only one for Reference, and then after uploading to AVR you can quickly switch back and forth between these two curves during the playback. (There is nothing *inherent* for Multi EQ X in Reference/Flat curves, it’s just the curve1 and curve2: the application (or not) of every kind of roll-off, midrange compensation etc is fully user selected). This is another HUGE benefit compared to iPad app!
6) You can manually override automatically determined distances to speakers/subs if you need to, without having to do it manually each time you upload adjusted curves to AVR (iPad app does not allow this, and it was a pain changing distances each time manually) [update: for my x6500h receiver this app takes the manual distances to speakers that I enter in the app and divides them by ~1.136 before uploading to my AVR. Grok can explain why, but this should not happen to newer Denon models]
7) Reference and Flat curves can also be used one for playing your speakers LARGE/FULL RANGE and the other one for CUSTOM TUNED CROSSOVER WITH SUBS. This is how you do it:
a) design all filters that you need for full range (if your speakers are capable of that), then
b) switch on crossover at desired frequency in Denon (MultEQ-X cannot override default Denon’s crossover curves)
c) see with REW if you need to correct automatic crossover with additional PEQ filters in REW,
d) create those filters in MultEQ-X for only one of two curves,
e) finally when saving quick presets on your Denon remote make sure that crossover is switched off in the AVR when the curve with filters designed only for full range configuration is selected, save the present on remote, then turn on the crossover, switch to another curve in Audyssey settings in AVR that has all you additional filters if needed and program it for a different button on your remote.
And just like that you can now switch your carefully designed configurations for full range and crossover with subs with just a click of a button!
I feel ashamed of not buying this app much sooner and wasting time torturing myself with the iPad graphic app (too painful to write here about the different ways that app was harassing me). But to my defense all the demo videos of this app that I saw on YouTube were long and boring and
never highlighted all the awesomeness of this app briefly and authoritatively!
P.S. MultEQ-X has also very good manual on their website (link available from the help menu in the app). Skip all YouTube demos, go to this manual. If in doubt ask Grok or Gemini: they both know this app inside out.
For A/B comparison program “quick access” buttons on your Denon remote: one while Reference curve being selected, one with Flat. Make sure that you program them at the same volume (all active settings incl volume are copied in every saved preset at the moment of saving, not just curve type).
Below are the key things that I was not certain of before purchasing the app and all of this is actually true:
1) You can create CUSTOM CURVES FOR INDIVIDUAL CHANNELS (FL, FR, RL, RR, Sub etc). (my Denon x6500h does not support different curves for different subs, but I guess in newer Denon/Marantz models you can create different curves for each sub. I use SVS app to fine tune each sub’s curve).
2) APPLY YOUR CUSTOM FILTERS ONLY, BYPASSING ALL AUDYSSEY’S AUTO CORRECTION. Just make at least one measurement of the room and then disable it (without doing at least one measurement Audyssey will not be activated even if you transfer your custom curves to AVR).
3) DISABLE AUTO FILTERS ONLY FOR SPECIFIC CHANNEL(S): do the 6, 8 or more measurements as recommended, activate them in the MultiEQ-X app, and then on the “filter settings” menu set the “High Frequency EQ limit” to “Limit measured” (not “limit all”) and the cutoff to “20Hz” for the channel(s) to which you do not want any auto filters applied. This is another huge upgrade from iPad app: the iPad app always applies “limit all”, which means that both auto-measured and your custom filters for this channel will not be applied above this frequency, whereas in the MultEQ X app you can tell it not to apply only auto-generated filters while applying the ones you generated, including PEQ filters, different roll-off slopes etc.
4) Not only are there unlimited PEQ FILTERS for each channel/pair of channels, but also LOW SHELF/ HIGH SHELF, low/high pass and other filter types (with which I have not experimented with yet)
5) A/B COMPARISON with this app IS VERY EASY!! (see footnote) You can specify which of your custom filters you want to apply to REFERENCE curve only and which to FLAT curve only, and which for both. So for instance, you can apply all filters for both curves and only one for Reference, and then after uploading to AVR you can quickly switch back and forth between these two curves during the playback. (There is nothing *inherent* for Multi EQ X in Reference/Flat curves, it’s just the curve1 and curve2: the application (or not) of every kind of roll-off, midrange compensation etc is fully user selected). This is another HUGE benefit compared to iPad app!
6) You can manually override automatically determined distances to speakers/subs if you need to, without having to do it manually each time you upload adjusted curves to AVR (iPad app does not allow this, and it was a pain changing distances each time manually) [update: for my x6500h receiver this app takes the manual distances to speakers that I enter in the app and divides them by ~1.136 before uploading to my AVR. Grok can explain why, but this should not happen to newer Denon models]
7) Reference and Flat curves can also be used one for playing your speakers LARGE/FULL RANGE and the other one for CUSTOM TUNED CROSSOVER WITH SUBS. This is how you do it:
a) design all filters that you need for full range (if your speakers are capable of that), then
b) switch on crossover at desired frequency in Denon (MultEQ-X cannot override default Denon’s crossover curves)
c) see with REW if you need to correct automatic crossover with additional PEQ filters in REW,
d) create those filters in MultEQ-X for only one of two curves,
e) finally when saving quick presets on your Denon remote make sure that crossover is switched off in the AVR when the curve with filters designed only for full range configuration is selected, save the present on remote, then turn on the crossover, switch to another curve in Audyssey settings in AVR that has all you additional filters if needed and program it for a different button on your remote.
And just like that you can now switch your carefully designed configurations for full range and crossover with subs with just a click of a button!
I feel ashamed of not buying this app much sooner and wasting time torturing myself with the iPad graphic app (too painful to write here about the different ways that app was harassing me). But to my defense all the demo videos of this app that I saw on YouTube were long and boring and
never highlighted all the awesomeness of this app briefly and authoritatively!
P.S. MultEQ-X has also very good manual on their website (link available from the help menu in the app). Skip all YouTube demos, go to this manual. If in doubt ask Grok or Gemini: they both know this app inside out.
For A/B comparison program “quick access” buttons on your Denon remote: one while Reference curve being selected, one with Flat. Make sure that you program them at the same volume (all active settings incl volume are copied in every saved preset at the moment of saving, not just curve type).
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