+ Reply to Thread
Page 8 of 28 FirstFirst ... 67891018 ... LastLast
Results 106 to 120 of 408

Thread: JBL Synthesis - Room Design and Treatment

  1. #106
    Senior Member
    Join Date
    Feb 2004
    Location
    SoCal, USA
    Posts
    8,887
    Quote Originally Posted by jblsound View Post
    Diffusers go on the back walls, where needed, absorbtion panels go at the first relective point, if needed.
    The front wall will be completely "dead" as will most of the first third of the room.
    In.

  2. #107
    Member
    Join Date
    Feb 2008
    Location
    Norway
    Posts
    74
    Quote Originally Posted by Titanium Dome View Post
    Thanks. It's all a bit daunting, really, and whatever you pay for the gear is only the beginning of your spending.

    AudiogoN maybe? This was an authorized dealer transaction. I didn't do it through ebay.

    Tell me about that
    In about a months time my HTroom is up and running, the cost ?? do not even want to think about it, I will post a pic or three when it is done however

    Ok, I did just see a simular setup on Ebay and asked the seller if he would split it up, I needed the Sdec for my system, but after a couple of runs on Ebay it was sold through the shop of the owner, the seller was a really nice guy by the way.

  3. #108
    Member 80sKid's Avatar
    Join Date
    Feb 2008
    Location
    Connecticut, USA
    Posts
    84
    Quote Originally Posted by Titanium Dome View Post
    Thanks. Their prices are good.
    My JBLs in my media room: S310II L&R, S38II center, two B&W ASW600 subs, Polk M3 x4 surrounds. JBL Harmony in Kitchen.

  4. #109
    JBL 4645
    Guest
    Quote Originally Posted by jblsound View Post
    Diffusers go on the back walls, where needed, absorbtion panels go at the first relective point, if needed.
    Well I said I had to dig that manual out the mind canít hold onto every little detail.

    A common bookcase with books placed in a random fashion helps so I read. Thou Iíd prefer something more fancy looking. Diffusers arenít all that hard to build are they not?

  5. #110
    Senior Member jblsound's Avatar
    Join Date
    Jan 2008
    Location
    2500 m above sea level
    Posts
    460
    Quote Originally Posted by Titanium Dome View Post
    The front wall will be completely "dead" as will most of the first third of the room.
    That brings to mind my first house in the '70s. I had a combination of a large tapestry and 1/2" thick brown cork panels covering the entire wall behind the speakers. It did deaden the room a bit. I haven't done it since.
    Been thinking of getting a couple of those recycled demin panels to go behind the front speakers.
    Living in the Land of the Sun

  6. #111
    JBL 4645
    Guest
    Quote Originally Posted by jblsound View Post
    That brings to mind my first house in the '70s. I had a combination of a large tapestry and 1/2" thick brown cork panels covering the entire wall behind the speakers. It did deaden the room a bit. I haven't done it since.
    Been thinking of getting a couple of those recycled demin panels to go behind the front speakers.
    Hmmm, wouldn’t cork also deaden the sound and be slightly reflective at the same time?

    Doesn’t cost much does it unless you hang out at pubs and nick all the cork mats on each visit.

    More update pictures Dome keep us updated on the developments of the project.

  7. #112
    Member 80sKid's Avatar
    Join Date
    Feb 2008
    Location
    Connecticut, USA
    Posts
    84
    Cork would only absorb the highest of frequencies. While it's better than nothing, it really wouldn't give the kind of sound control that most rooms need. Plus, the aesthetic of cork everywhere is certainly not for everyone.

    Using bookcases as diffusers is what I have done in my own den/media room. The back wall sections that are not dominated by a fireplace are filled with bookcases that have videotapes, CD, DVDs and yes books, of varying sizes. Works great.
    My JBLs in my media room: S310II L&R, S38II center, two B&W ASW600 subs, Polk M3 x4 surrounds. JBL Harmony in Kitchen.

  8. #113
    JBL 4645
    Guest
    Iíll look into cork as well as other types of affordable materials cheers.

  9. #114
    Senior Member
    Join Date
    Feb 2007
    Location
    Christchurch, NZ
    Posts
    1,384
    I think everyone is thinking too hard about listening room acoustics. My current room, which is now close to finished, has fibreglass installed in all of the walls, drywall and carpet. The ceiling and the floor are not paralell and the walls are not paralell. The main goal of this room is not to stop reflections as such, but to make sure there are no standing waves. As for reflections, well the room is dead. Apart from the construction of the walls, the rest of the house is exactly the same, the room treatments cost a whopping $400. $240US, 130GBP!!!! It was a bit of a punt but it has far exceeded my expectations.

    Allan.

    p.s. as for cork, dont go there.

  10. #115
    JBL 4645
    Guest
    Spot on £130 thatís what I call affordable.


    Fibreglass Iím kinder allergic to it unless itís a user-friendly type due to my skin conduction.

    I was fascinated with the treatment in the VUE at London nice soft spongy like fabric as pictured in the VUE pictures I took last year of one two THX screens fully rigged with JBL.

    It was layered with white fabric over the front Iím guessing its one of two types behind fibre or other






  11. #116
    Senior Member
    Join Date
    Feb 2007
    Location
    Christchurch, NZ
    Posts
    1,384
    Quote Originally Posted by JBL 4645 View Post
    Spot on £130 thatís what I call affordable.
    I thought you would like that! I did have to glue the carpet on myself though.

    Also got the other sub finished a couple of weeks ago. Now I have 4 x 2235's. mm mm mm mm mm.

    Allan.

  12. #117
    JBL 4645
    Guest
    Quote Originally Posted by Allanvh5150 View Post
    I thought you would like that! I did have to glue the carpet on myself though.

    Also got the other sub finished a couple of weeks ago. Now I have 4 x 2235's. mm mm mm mm mm.

    Allan.
    Four should eliminate the standing wave/null issues.


    I bet that glue was sticky messy issue getting attached to walls.

  13. #118
    Senior Member
    Join Date
    Feb 2007
    Location
    Christchurch, NZ
    Posts
    1,384
    Hi Ash,

    I can definately say there are no nulls in my room. One sub is under the plasma as you have seen and the other is about 1.5 metres behing the listening position. 1000watts per cab and tuned to 27Hz. Serious overkill but one can never have too much.

    Allan.

  14. #119
    JBL 4645
    Guest
    Quote Originally Posted by Allanvh5150 View Post
    Hi Ash,

    I can definately say there are no nulls in my room. One sub is under the plasma as you have seen and the other is about 1.5 metres behing the listening position. 1000watts per cab and tuned to 27Hz. Serious overkill but one can never have too much.

    Allan.
    Oh, I humbly agree one can not have too much.

    Al, have you ran frequency sweep with free software like REW at the sweet spot to clarify this?

  15. #120
    Senior Member jblsound's Avatar
    Join Date
    Jan 2008
    Location
    2500 m above sea level
    Posts
    460
    Quote Originally Posted by 80sKid View Post
    Cork would only absorb the highest of frequencies. While it's better than nothing, it really wouldn't give the kind of sound control that most rooms need. Plus, the aesthetic of cork everywhere is certainly not for everyone.

    Using bookcases as diffusers is what I have done in my own den/media room. The back wall sections that are not dominated by a fireplace are filled with bookcases that have videotapes, CD, DVDs and yes books, of varying sizes. Works great.
    I never said using cork was the best way to go, just remembering having used it 35 years ago, as TiDome mentioned that the entire front of his room would be dead.

    In fact, those cork panels, like the two vertical rows of gold vein mirror tiles, on that same wall, are just two of many products available in the '70s never to be seen again. Looking back, the '70s were a bit strange.

    As for my current room, I've only got corner diy bass traps. Been thinking of getting 2 or 4 recycled demin wall panels, with two going right behind the main speakers, and first reflection points on the sides. But I'm not convinced they will change the sound that much, to warrant the cost, as those speakers are five feet from the side walls and 4.5 ft out from the back wall.
    Living in the Land of the Sun

+ Reply to Thread

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts