Let's share diagrams (and photos) of our total physical audio system and the whole signal path, with a few words and/or links

[Count Arthur]

Space 1999

Back in the good ol' days when the future was 26 years in the past.

 

[dualazmak]

Hello again, @Anton S,

In your post #316, according to your nice physical connection diagram and great photos, I understand that you are feeding the SP high level signal to the L&R Mythos ST-L on the surround SP side, the L&R EVID6.2 Height-1 on the front, and the L&R EVID6.2 Height-2 on the rear.

In your photo, you have the SP high level cable socket/outlet on the wall near the garden door, right?

If this would be the case, did you build your house fit for your audio system, or renovate your room and wall after completion of your audio system setup?

I am also interested in the AWG gage gauge of the rather long SP high-level cable inside the wall. (I have similar cabling/wiring, i.e. ca.8-m long AWG10 and AWG12 many SP cables from amps to my SP drivers, ref. #028, #137, #895, #906, #976 on my project thread.)

And, just for my curiosity, let me ask whether you have cabling pipe from amplifier's rear to the socket/outlet point so that you can easily change/renew the SP cable in it, or not.

 

[Oddball]

Really amazing and impressive 9.4.4 system which is also aesthetically beautiful and so nicely wonderfully organized!

I can imagine "your physical connection diagram" in my brain. Only if possible at your side, however, I will highly appreciate if you can spare your precious time for a while to prepare "diagram(s) of your system" for our at-a-glance understanding and fun-watch; such possible your diagram will be a great reference and of-interest for many people kindly visiting this exciting thread.

Furthermore, again if possible at your side, I will be much interested in seeing your "total signal path diagram" (just like Fig.03 in my very first post); I am really curious about Fq coverage and XO configuration for each of the multiple SP drivers.

I know well these two requests would be somewhat of homework for you, and of course you can simply refuse/ignore my requests.

Again, thank you for your great post #313.

Life is pretty busy right now, but will try to do signal path diagram over the weekend. In the mean time a short summary:

Bed channels have F3 between 30 and 50hz and can withstand that without significant distortion to some 95-100dB. I run them as full range speakers so they get the full range signal that is rolled off with Audy MultiEQ-X according to individual in-room response of the speaker.

While not ideal solution, I find that using LFE+Main setting is still a better trade off than not using it with large speakers. So I send to the subs low end signal from all bed channels with LPF filter set at 60hz (should be 12dB per octave). Without this solution, lots of low end content would be lost, or would exclude possibility to run speakers as full range. It would be better if D&M had more granular settings for better matching but 40/60/80 hz is all that is on the menu. This does introduce some duplication between the subs and bed channels, but one can also think of it as building the custom curve and to the extent possible compensated through adjustments to the EQ curve of subs and bed channel speakers so that overall response is as close to one's target as possible.

In addition, I use LFE distribution that sends LFE signal to all full-range speakers (except for the center to keep it focused on its own tall task). That signal is before +10dB bump that subwoofer outputs get as part of the processing. It is also EQd by Audy according to the specific channel curve for each channel (where roll-off is according to in-room response) so that it does not overload the speaker. I use further SPL level adjustment for distributed LFE that is -4dB for more capable speakers and -6dB for less capable speakers (on scale -20dB to 0dB).

Subs are positioned in a primitive DBA array as a result of very extensive exercise to find optimal response not only at MLP but entire multi-purpose room (living room, dining area, kitchen and 2 hallways). While there were slightly better solutions for MLP itself, taming the room modes in the rest of the space was imperative. Can't really enjoy the perfect bass while all the china and windows are rattling. Front 2 subs are at 20 degree phase to mains and 2 back subs 180 degree (almost inverted) to mains. Some SPL is lost in this setup, but it really clears the mud and decay all the way to some 30hz.

So while the setup looks "tidy" as some say, it is a real mess under the hood. Lots of compromises had to be made as this type of setup ends up being very manual, despite the help from Audy MultiEQ-X. Far from ideal, but still IMO sounding better than standard bass management using 80hz crossover. Measurements are also marginally better. Trinnov would probably be easier (and likely better) platform to implement this signal path as it would be fully supported by their Optimizer room EQ. Interesting that Dirac did not go down this route even with their latest ART solution. ART will fix decay through cancelation signals from supporting speakers, but is not going to use supporting speakers to improve the core frequency response of the system. That will still be based on traditional crossover bass management.

At the end the system uses all bass drivers to work together (for the most part). So that would be 6x13.8" drivers and 4.4kW of amps for the subs and 4x8" drivers (and 8x8" passive radiators - mains) plus 6x10" drivers (surrounds), with 1.4kW of amps for respective speakers.

 

[dualazmak]

Hello @Oddball,

Thank you for your detailed descriptions!
I well understand them, and very much looking forward to seeing your possible nice diagram(s) of total signal path.
I am not in a hurry, so you would please "take it easy" and have enough time for preparation of such diagram(s).

 

[Anton S]

Hello again, @Anton S,

In your post #316, according to the nice physical connection diagram and the wonderful photo, I understand that you feed SP high-level signal into your surround SPs side L&R Mythos ST-L, front L&R EVID6.2 Height-1 as well as rear L&R EVID6.2 Height-2.

In your photo, I notice SP high-level cable socket/outlet on the wall near the door to your garden, right?
View attachment 456812

If this would be the case, did you build your house fit for your audio system, or renovate your room and wall after completion of your audio system setup?
I am also interested in the AWG gage of the rather long SP high-level cable inside the wall. (I have similar cabling/wiring, i.e. ca.8-m long AWG10 and AWG12 many SP cables from amps to my SP drivers, ref. #028, #137, #895, #906, #976 on my project thread.)

And, just for my curiosity, let me ask whether you have cabling pipe from amplifier's rear to the socket/outlet point so that you can easily change/renew the SP cable in it, or not.

Yes, having been a proponent of multi-channel audio for some time prior to having this house built, I instructed the builder to pre-wire the walls for the speakers. Shielded 12-gauge, which I considered to be more than adequate for the application, was used for the wiring. The use of conduit would have been impractical, and I had no plans for swapping out the wiring at a later date, so it wasn't used. However, I did have the builder install two (x2) dedicated 20-amp circuits in the front wall for the gear, and the media alcove was built to my own design.

 

[Gary_G]

Yes, having been a proponent of multi-channel audio for some time prior to having this house built, I instructed the builder to pre-wire the walls for the speakers. Shielded 12-gauge, which I considered to be more than adequate for the application, was used for the wiring. The use of conduit would have been impractical, and I had no plans for swapping out the wiring at a later date, so it wasn't used. However, I did have the builder install two (x2) dedicated 20-amp circuits in the front wall for the gear, and the media alcove was built to my own design.

Are those circuits on the same leg in the panel box, or opposite ? Looking at building a home and I want to have a dedicated set of circuits for the equipment. Was thinking two 20amp circuits for possible mono blocks and then a few 15amp for other equipment.

 

[Anton S]

Are those circuits on the same leg in the panel box, or opposite ? Looking at building a home and I want to have a dedicated set of circuits for the equipment. Was thinking two 20amp circuits for possible mono blocks and then a few 15amp for other equipment.

Same leg.

 

[dualazmak]

Hello again, @Penelinfi,
As I cordially requested, please, please, stop arguing, and you would please "stay on your lane".
Of course, you have no obligation nor need at all participating on this thread anymore.
Edit:
I noticed that @Penelinfi’s message posted just prior to this my post has been deleted by himself or by the moderator.

 

[JanRSmit]

Our System for enjoying music, and a peak into the soul of the musicians for the goose bumps:

The schematics:

For me I always draw schema’s, as schema’s help me in communication to others and rationalize system related decisions and checks, like a map for routing from A to B.
Note: The tweeters are an “upgrade path" (as @Lars Risbo formulated it) towards the Purifi tweeter that will arrive any moment now after a wait of over a year.


The physical situation:

My living room, for an idea of dimensions, it is 5.18 m wide, enclosures some 2.5m apart, MLP at ~350cm from enclosures. Enclosures are 113cm high and weigh some 70+ kg.
While on the couch (MLP) it sounds best, on other places like the room right to the living room, or on the terrace in the garden it still sounds very coherent (when doors are wide open ).

Will be interesting to find out what the new Purifi tweeter will add to the enjoyment.

 

[dualazmak]

Hello @JanRSmit,
Welcome on board on this exciting thread, and I thank you so much for your wonderful schematics (I say diagram) and impressive photo of your listening room!
I am very happy knowing you too use OKTO DAC8PRO, as I also do use it.

For me I always draw schema’s, as schema’s help me in communication to others and rationalize system related decisions and checks, like a map for routing from A to B.

Yes, fully agree, the same for me. I highly appreciate your above kind words which greatly encourage me hosting this wonderful thread.

Edit:
Just for my curiosity, let me ask the height of your ceiling from the floor of your listening room.

 

[JanRSmit]

The height is ~244cm . Thanks for your reply @dualazmak

 

[Sjkrabbe]

Our System for enjoying music, and a peak into the soul of the musicians for the goose bumps:

The schematics:
View attachment 456988

For me I always draw schema’s, as schema’s help me in communication to others and rationalize system related decisions and checks, like a map for routing from A to B.
Note: The tweeters are an “upgrade path" (as @Lars Risbo formulated it) towards the Purifi tweeter that will arrive any moment now after a wait of over a year.


The physical situation:
View attachment 456989

My living room, for an idea of dimensions, it is 5.18 m wide, enclosures some 2.5m apart, MLP at ~350cm from enclosures. Enclosures are 113cm high and weigh some 70+ kg.
While on the couch (MLP) it sounds best, on other places like the room right to the living room, or on the terrace in the garden it still sounds very coherent (when doors are wide open ).

Will be interesting to find out what the new Purifi tweeter will add to the enjoyment.

looks very nordic - are you danish like me? And purifi is danish as well

 

[JanRSmit]

looks very nordic - are you danish like me? And purifi is danish as well

Haha, on the contrary , still i see it as a compliment.
I am born on the beautiful island Bonaire, my wife was born in the city The Hague (Scheveningen actually). Within the realm of the kingdom of the Netherlands these spots can be seen as on the opposing edges.
Edit: my parents are from the northern part of The Netherlands, and culturally that part is quite close to Denmark.
I came to The Netherlands in 1968. We are 50 years together, and styling and art is very important for us. It has to tell a coherent story and in case of interior and music has to be 3 dimensionally correct. So very multiculti!

What connects us and Purifi though is the soul of the music in essence a peak into the soul of the performing artist. Which was also core to my way of fime art printing, and my wife's clay sculptures.

 

[JanRSmit]

@dualazmak , you made a remark about schema vs diagram. It triggered me and in Dutch what i presented is called a "schema", whereas a "diagram" is a picture showing relationship between quantities.
The words are spelled literally the same.
Language is funny is it not ;-)

 

[Multicore]

Hello @Oddball,

Thank you for your detailed descriptions!
I well understand them, and very much looking forward to seeing your possible nice diagram(s) of total signal path.
I am not in a hurry, so you would please "take it easy" and have enough time for preparation of such diagram(s).

If we allow enough time I am hopeful that the diagrams will be in iron gall ink on goatskin vellum.

 

[dualazmak]

If we allow enough time I am hopeful that the diagrams will be in iron gall ink on goatskin vellum.

LoL, OK, let cordially and generously allow reasonable/acceptable time for people for possible preparation of diagrams, even though I myself is still not in a hurry at all, so I mean several weeks or several months, for steady and enjoyable growth of this exciting thread...

 

[JanRSmit]

Just received my PTT1.3T04-HAG-01 tweeters. Will open a new thread for the completion of the purification of my GAYA2 speakers.

 

[dualazmak]

Just received my PTT1.3T04-HAG-01 tweeters. Will open a new thread for the completion of the purification of my GAYA2 speakers.

Very nice to hear so!
Here on this thread, you would please let us know the link to your new thread when you will start it, in the near future.