Page 1 of 2 12 LastLast
Results 1 to 10 of 13

Thread: Now for a Technical Question

  1. #1
    Join Date
    Mar 2005
    Location
    Massachusetts
    Posts
    120

    Default Now for a Technical Question

    If I were to buy the 340's and wall mount them using a heavy duty adjustable wall mount (so they won't be flush to the wall; something similar to what Ascend sells for the 170, but these hold about 45 pounds, and use a "clamping" method to secure the spaeker), and cut the crossover at 80hz via my receiver, would the distance to the wall matter with regard to the rear port since bass won't really be an issue? I saw in another thread that Dave said there should be about 12" behind a 340, but with my current mounts, there's only about 6".

    Thanks Again

    And this will be the determining factor as to whether I get the 170's or 340's. Although I'd love to be able to mount and really crank up some 340's, I don't want to sacrifice the quality of sound for size.

    ...almost there...(stay on target), almost there (stay on target)...

  2. #2
    Join Date
    Jan 2004
    Location
    Charter Oak, Iowa
    Posts
    579

    Default

    6" would be a less than ideal but with my tin ear I'm not sure I could tell much diff between 6" or 12". DaveF has always recomended we give the 340's more breathing room.

    Randy

  3. #3
    Join Date
    Mar 2005
    Location
    Massachusetts
    Posts
    120

    Default

    I realize that more space is better, but if you're not pumping that much air with low frequencies, will the six inches make that much of a difference? What I'm trying to achieve with my mains and center is good clean mids and highs that I can really crank, and let my subs manage the lows.

  4. #4
    Join Date
    Dec 2003
    Location
    Little Rock, AR
    Posts
    134

    Default

    When helping me decide how I could mount my 340 rears the setup davef recommended provided 3.5-4" between port and wall. Given that I'd say 6" is A-OK.

  5. #5
    Join Date
    Aug 2003
    Location
    Manhattan Beach, California
    Posts
    7,052

    Default

    I think it also matters if it is parallel to the wall or angled.
    -curtis

  6. #6
    Join Date
    Mar 2005
    Location
    Massachusetts
    Posts
    120

    Default

    There is a slight downward and inward angle towards the listening position. I would say 10-12 degrees from paralell and 7-10 from perpendicular.

  7. #7
    Join Date
    Mar 2005
    Location
    Massachusetts
    Posts
    120

    Default

    Hey Clutch, I think I read the thread you're referring to, and wasn't Dave saying that it would be okay to do that with a 340c positioned horizontally?

  8. #8
    Join Date
    Aug 2003
    Location
    Manhattan Beach, California
    Posts
    7,052

    Default

    Quote Originally Posted by bri1270
    There is a slight downward and inward angle towards the listening position. I would say 10-12 degrees from paralell and 7-10 from perpendicular.
    Its been a while since I had geometry....but that doesn't read right. Then again...I never liked word problems.
    -curtis

  9. #9
    Join Date
    Mar 2004
    Location
    SouthWest of Cleveland
    Posts
    1,927

    Default ...Perpendicular....Parallel?

    I just tried to lay that out on AutoCAD......and my computor shut down!
    Ed

    * Sierra-2EX's W/V2 crossover upgrade
    * (2) Rythmik F12's
    * Parasound Halo P6
    * Audio by Van Alstine DVA-M225 Monoblock Amps
    * MiniDSP 2x4HD For Sub calibration
    *World's Best Cables Canare 4S11 speaker cables

  10. #10
    Join Date
    Jul 2004
    Location
    Birmingham, Alabama
    Posts
    462

    Default

    I think you'd be fine with 6.
    - EVH III

Posting Permissions

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