SIMO Studio - Construction Phase

slight Bump (perhaps) :oops:

Hi there, sorry to push my post forward again… :oops: I know Glenn you already responded to this, but I'm still a confused on how can I make the two soffits with equal absorption but at the same time having hangers behind just the right soffit? Won't this make that soffit more absorbent that the left one? Sorry, but could you elaborate on that when you get a chance please? :oops: …also, still having difficulties finding soft fibre board (160 Kg/m3) for the hangers core here in UK…I searched on the Building Materials part of the Forum with no luck…could anyone point me in the right direction (to find it or for alternatives) please? Many Thanks :) Ciao Simo

the symmetry on the LF will be offset due to the differences but you need LF absorption so you have to do what you can the mids and HF tend to be the most impacting so your wall and ceiling symmetry will be most critical in your tradeoffs. look for cellulose board - lighter is OK. if not, a lightweight plywood - 3mm could be used.

Great explanation Glenn, just what I needed to know - all clear now. Thanks so much ! Promise I won't disturb you again…..well, not anymore about this at least :mrgreen: eh eh Have a good day ! Ciao Simo

Hi there, it's been a while since my last post, and the construction has slowed down a bit…. well, I've been quite busy at the studio where I work so can't really complain as that helps financing the project as well as keeps me in the loop …but I wish I was much more further down the line with the build as i seem soooooo freaking distant from the finishing line… ….oh well…head down and onwards we go ! Time for me to post some pics of where I am at: 1) Rear bass traps (that will house acoustic hangers): ------------------------------------------------------------------------------------------------------------ 2) Rear sloped wall (between the two corner bass traps): This is around 18-20 degrees splayed from the front wall. A couch riser will (more than likely) go between the corner traps so I decided to start splaying it upwards from a bit above where I figured out the couch's higher point will be (as I guess/hope the couch will act as an additional trap for low mid frequencies :-) ). I'm still undecided if this rear sloped wall should be: a) a slot resonator ? b) superchunk ? c) a mix of slot resonators and superchunk ? d) more (possibly too small) hangers ? Any suggestions extremely welcome (as usual) ! ------------------------------------------------------------------------------------------------------------ 3) Speaker soffits: These follow John's design (or at least I hope so) and at the moment are just temporary attached to the lateral walls. I still need to install the hangers in the cavity beside the right soffit and so I need to be able to move that soffit out of the way in order to gain space to maneuver the hangers inside there :-) ------------------------------------------------------------------------------------------------------------ 4) Inner leaf ceiling: This is made out of five inside out pieces. At the present I just made the framing and then leant them on top of the walls. I will later take them down one at the time and install the gyprock on their back and then lift them back up in position. I will bolt them to each other and caulk between where the pieces meet. BUT before doing that I'm waiting to finish the framing of the live room walls as well. This is primarily because I desperately need to get rid of as much material as possible, in order to re-gain some floor space… you know, working in the same (small) place where all the stuff is stored had made the whole experience much more difficult that what it was already ! Secondly, I (still !) need to figure out what to do with my HVAC systems, which will very likely have silencers installed between the ceiling beams. I have to admit that I'm really dreading this step as I know very little about it and I'm a bit confused !! Comments? Suggestions? Insults? Thank you very much in anticipation ! Ciao ! Simo

terrible, terrible! you need to start over! :twisted: actually it's looking good. i'd just go with absorption on the back sloping wall. you could add some widely spaced slats there later to increase some of the HF energy in the room.

"I will later take them down one at the time and install the gyprock on their back and then lift them back up in position." You have a sheathed upper ceiling,,we have to assume a floor space above that with a coupled leaf.

Thanks so much Glenn ! Much appreciated (especially coming from you man !) I'll definitely follow your advise on the back sloping wall. Thank you for your reply Brien. Unfortunately I have to admit I'm having trouble understanding your statement - sorry :oops: Could you please elaborate on that if you get the chance. Grazie Ciao Simo

Hello Yesterday I finished and raised in position the first wall of the Live room (my back hurts !!!). Pics to come ! Now I'm a bit undecided on how to do the second wall (the one with the window). Here are the 3 options I'm considering: Option 1: Option 2: Option 3: At the moment I'm more inclined towards option 2, as it seems to waste less floor space (a slight difference - I know - BUT every inch (or centimeter) counts, right? :lol: ) and to give me a greater gap between the inner and outer windows. …BUT…. What do you think?? If you could give me your opinion that would be great, as it will help me decide which way to go ! Many Thanks as usual Ciao Simo

Looking really good Simo. Hang in there.

Thanks a lot Charlie ! I think I settled with this: Ciao Simo

Nice! Good layout. Should work great! - Stuart -

Thanks a lot Stuart ! your approval is very much appreciated :D It's still a loooong way to go….BUT knowing that at least I'm heading to the right direction DOES make me feel better

agreed. looks good.

Grazie Glenn…. well... I guess I better get cracking then :)

simo wrote:

Unfortunately I have to admit I'm having trouble understanding your statement - sorry :oops: Could you please elaborate on that if you get the chance. Grazie

You have a roof with rafters with insulation and then you have sheetrock on these rafters (a coupled wall assembly in effect)' Then you are framing an interior ceiling which you will hang more sheetrock on. It would have, if it were possible, better to add the mass directly to the rafters (top side of rafters and possibly mass it up like you would do if this were an overhead floor) and then frame the interior ceiling with sheetrock on the interior side of the newly framed ceiling, in the attempt to make a fully decoupled mass/spring/mass system. What you have will be effective enough. But if I had it to do again...:)

Hi everyone Hope you are all well and had a great start of the year ! I haven't been posting on the forum in a while but I have never stopped following it religiously and enjoying all the great builds posted ! Here's an update of my build. Comments, suggestions, head ups are as ever very welcome ! After the framing of the CR I concentrated on the LR construction: First some planning with the walls sole plates to check that all made sense … Then my daughter stepped in with some precise measurements and art to embellish my gyprock …and who said that I don't get any help ! :-) Framing of first wall (the one opposite side of the splayed one between CR and LR) two layers of gyprock …going up (really heavy) and the first one's up… Framing of the second wall done and tested that all fit as it should I had to split this wall in two parts as it was too wide (wider than my available floor space) to have it on the floor all in one piece and then raise it up like the other ones Left and right parts of the wall I then bolted and screwed the two parts together and started the splayed wall ... to be continued ...

Splayed wall: I had to split this wall in two parts as well (bolted and screwed together), again for lack of floor space. One smaller part is from the edge of the door to the right (inside out construction as usual) and one bigger part is from the door all the way to the left. This part is the only wall in the building which has plasterboard layers on the inside of the room as it will be a reflective surface (rocks, bricks or similar). I loosely filled in the gap between this wall and the CR wall with fluffy insulation and then placed the rockwool between the studs Then I attached two layers of plasterboard, at the present just up to the window. This is enough for the moment to close that side of the wall where a angled wall with hangers inside will be attached later. For now I prefer to leave the rest of it open and accessible to run electrics and audio cables (well away from each other of course) Then is the turn of the smaller wall opposite side of the window and near the WC: Framing of the wall that's around the WC The stud wall of the WC is already inside that small space…it was a real pain to work confined into that very tiny space…so I'm really glad I'm done with that!) Gap between the WC wall and the LR wall Loosely filled in with soft insulation and then filled the cavity between studs with rockwool I attached the usual 2 layers of gyprock on top (no pics) and then tiles will finish it off :-) ... to be continued (again) :-)...

... Next I built the splayed walls that are attached to perimetric ones that will house hangers and slat resonators. The one on the window was the most challenging one where lots of cuts where required… ... end of part III... :-)

…aaaaand this is where i am at: Well, sorry for the numerous pics… :oops: Until next time Be well !! ciao simo

Nice work on the framing! Looking pretty good. - Stuart -

Thanks a lot Stuart. Your compliment is very much appreciated!

Hi Simo! Agreed with Stuart! Looking really good! I can't wait your next update :D -Janne

Hi Janne, Thank you very much, very kind of you! I can't wait for my next update as well man! How's the costruction of your cloud going? I'm sure it will help taiming that poking frequency. Best of luck with it ! Ciao Simo

Thanks Simo :D The construction has started and I hope that I can finnish it next week. It might help, but if that frequency pike is a room mode causing by side walls then it might be useless about that problem... Anyway, I'm sure it's going to look pretty good :D -Janne