Home Theater Forum and Systems banner


  1. First reflection points for HT, and Music

    Home Theater Design and Construction
    I just found this article that explains what I have always believed was true... A music room and a HT both need first reflection treatments. It is a good read for anyone that wants to know more about room treatments. There are quite a few books out there too, if you would like to read up on the...
  2. My ceiling first reflection point is behind my head

    Home Audio Acoustics
    Went w/ the mirror found all my first reflection points for my L/R Mains. Since my ceiling is a cathedral my reflection point sits behind my head. I use the computer chair for my music listening and it sits where it shows. I'll start hanging my panels this week.
  3. Looking to make THIN first reflection point panels!

    Home Audio Acoustics
    I just spent some time marking out reflection points for my two rows of seating and I have 6 different points I need to cover. I also want to make this room look very nice and I think having panels hanging 4 inches off the surface of the wall is going to look weird and in one place, around a...
  4. Soundproofing,acoustics,reflection,deflection...AARRRRRGH

    Home Theater Design and Construction
    Ola my friends, Happy holidays. I am, as many of you know by now due to the frequency of my postings, finishing my basement which will include my very first home theater (hooray!). While perusing the internet, I have come across several HT enhancement products for everything from acoustics...
  5. Gain, reflection, specularity confusing topics (part 2)

    DIY Screens
    The question is: How much light do i get back in the end? Ok, let's start with the theory....according to wbassett: ''gain is the ratio of brightness of your projection screen material to a white standard such as barium sulfate or magnesium carbonate. These materials are used by the industry...
  6. First reflection points

    Home Audio Acoustics
    I plan to use OC 703 2". I have heard it is good to have it 3-4" from the wall. That's too far in my room. I could put about 1.5" between the panel and wall. Is that even worth it? Also, with these considerations, would it be a notable improvement to use OC 705? Also, I am going to treat...
  7. Treatment for side walls / reflection points

    Home Audio Acoustics
    I am trying to determine how wide my trim needs to be on the side walls - is there a standard / suggested thickness for 703 on side walls to treat reflection points? If so, does it adhere right to the wall or should a gap be left between the wall and the 703? Thanks! Joe
  8. First reflection points

    Home Audio Acoustics
    hey Guys, I’m just beginning my theater design. I plan to start a planning thread soon. :) I have a few tweaks to make to this design but I want to make sure I’m figuring out the first reflection points correctly. I did a mirror image of the speakers and drew lines to the seating...
  9. So Close! CRT Coolant mistake

    Philips / Magnavox
    Hey guys, I just spent the day changing the CRT coolants on a magnavox 51MP392H that we got a garage sale about a week ago. I was real siked when we got it until i figured out i could not fix the yellow cataract color that dominated most of the screen. After a little research, i found i needed...
  10. My post reflection from "The Show" Newport...

    Home Audio Speakers
    With all the crazy $50K speakers and off the wall 1K cables i thought I'd share my thoughts of all the speakers I listened to at this huge event. First, after listening to a set of Sierra 1's at my new close friend Curtis home I had a auditory visual and the standard was presented. I want to...
  11. reflection point above LP 2'x2' or 2'x4' size panel?

    Home Audio Acoustics
    If I need to place a panel above the listening position,which is just for a small single position,would it be acceptable to use just a 24"x24"x4" panel or go with a full size 24"x48"x4 panel. I'm also wanting to re-due my front 3 ceiling reflection points with three 24"x24"x4" square panels.I...
  12. first reflection concerns

    Home Theater Design and Construction
    I'm trying to figure out how big of a screen I can fit in my HT. How far from the side wall should I keep the front speakers to avoid first reflection issues. Acoustic panels can be used to assist in this area. The speakers are Sig 8's.
  13. Secondary Reflection Points

    Home Audio Acoustics
    It is relatively easy to either calculate or mirror-eyeball first reflection points. I can't seem to find much on how to determine secondary reflection points. Or if I should even try in a 11.5' x 15.75' room? Any resources out there on this? Thanks.
  14. DIY Diffusor, treatment of first reflection

    Home Audio Acoustics
    I have for some time been working on a usable and efficient treatment of some nasty first reflection in my listening room. Absorption was a no go, as it made the sound muffled and the stereo image smaller. I have by now come to find that diffusors are the way to go in many applications, as it...
  15. First reflection point location...

    Home Audio Acoustics
    Okay; Just trying to confirm this... To locate the first reflection point for the acoustic panels, sit in the primary seat, and have some one slide a mirror along the wall until you see the speaker. That is the first reflection point for the primary seat. Correct? I did that and the...
  16. 1st reflections questions

    Home Audio Acoustics
    My right front speaker's 1st refection point(can't hang panel there:rolleyesno:) is at the hallway opening.I have a double blackout curtain covering the hallway to keep light out.With a 4" thick panel at the left sides 1st reflection point will the right side act as an absorber or will the...
  17. Do I use reflection, defussion, or absorbtion in the rear of the room?

    Home Audio Acoustics
    Here is what I have so far... Room is 18 feet Deep by 17 feet wide about 7.75 feet high I have 8 panels of 2" 703 fiberglass panels and I plan on mounting them 2 left and right of the screen, 2 on the right wall front.( I have a double door that hits the middle of the room, 2 on the left front...
  18. first reflection panel thickness

    Home Audio Acoustics
    For FR (ceiling, side walls, back wall) is 2" OC 703 panel 2'x4' good enough? For WAF I may need to use 2" instead of 4". Is there a noticeable difference in SQ between using 2" and 4" panels?
  19. first reflection points:right and wrong ways?

    Home Audio Acoustics
    Hi all I hope I can explain my question clearly, it would help if I was good at using paint or something, but I'll try a verbal description first. Room treatment, yes I'll get to it one day, but as I have to renovate the room yet, no point doing it fully just now. First reflection points, I...
  20. Help with first reflection "mirror trick"

    Home Audio Acoustics
    Hi All, I am setting up my acoustic panels tomorrow and was wondering about the mirror test. My room is an odd shape and curious if the mirror should be held flat against the wall or 90 degrees to the wall. It may not matter but I had to ask. If I lay it flat on the wall along one wall I won't...