EQ...not in the way you're thinking, I promise!

therealjeepguy
therealjeepguy Posts: 62
edited May 2010 in Speakers
Something I was thinking of earlier today. If one were to order a pair of acoustic suspension speakers and/or sub that was built at elevation, and shipped to a location at or near sea level, would the difference in air pressure affect its performance? I mean, would I have to loosen the driver and break the seal in order to "equalize" the pressure? Certainly I can't be the only person to have thought of this...am I right? Any thoughts?
If you don't drive a Jeep, then please stay on the pavement.
Post edited by therealjeepguy on
· Share on FacebookShare on Twitter

Comments

  • Polkersince85
    Polkersince85 Posts: 2,883
    edited May 2010
    They are not sealed airtight. There is some leakage. Lay off the mushroom tea.

    .
    >
    >
    >This message has been scanned by the NSA and found to be free of harmful intent.<
    · Share on FacebookShare on Twitter
  • joeparaski
    joeparaski Posts: 1,865
    edited May 2010
    therealjeepguy wrote: »
    Something I was thinking of earlier today. If one were to order a pair of acoustic suspension speakers and/or sub that was built at elevation, and shipped to a location at or near sea level, would the difference in air pressure affect its performance? I mean, would I have to loosen the driver and break the seal in order to "equalize" the pressure? Certainly I can't be the only person to have thought of this...am I right? Any thoughts?

    Yeah, I think you're the only person that thought of this. You must be a pilot. Best that you do a "weight and balance" on your speakers.

    Joe
    Amplifiers: 1-SAE Mark IV, 4-SAE 2400, 1-SAE 2500, 2-SAE 2600, 1-Buttkicker BKA 1000N w/2-tactile transducers. Sources: Sony BDP CX7000es, Sony CX300/CX400/CX450/CX455, SAE 8000 tuner, Akai 4000D R2R, Technics 1100A TT, Epson 8500UB with Carada 100". Speakers:Polk SDA SRS, 3.1TL, FXi5, FXi3, 2-SVS 20-29, Yamaha, SVS center sub. Power:2-Monster HTS3500, Furman M-8D & RR16 Plus. 2-SAE 4000 X-overs, SAE 5000a noise reduction, MSB Link DAC III, MSB Powerbase, Behringer 2496, Monarchy DIP 24/96.
    · Share on FacebookShare on Twitter
  • therealjeepguy
    therealjeepguy Posts: 62
    edited May 2010
    Roger, Roger, what's your vector, Victor? This is Delta N17634 on approach to runway two three left comin' in on heading three six zero north at one eight niner...tower, please advise. Oh, and stewardess, I'd like another cup of mushroom tea. Thank you. N one, seven, six, three four out.
    If you don't drive a Jeep, then please stay on the pavement.
    · Share on FacebookShare on Twitter
  • comfortablycurt
    comfortablycurt Posts: 6,745
    edited May 2010
    therealjeepguy wrote: »
    Something I was thinking of earlier today. If one were to order a pair of acoustic suspension speakers and/or sub that was built at elevation, and shipped to a location at or near sea level, would the difference in air pressure affect its performance? I mean, would I have to loosen the driver and break the seal in order to "equalize" the pressure? Certainly I can't be the only person to have thought of this...am I right? Any thoughts?


    In order for this to be a concern, speakers would have to be absolutely air tight...and no speaker that I've ever heard of is absolutely air tight. They need to be able to draw air into the cabinet in order for the drivers to move.

    Even sealed subs aren't actually completely air tight...that just means that they aren't ported.
    The nirvana inducer-
    APC H10 Power Conditioner
    Marantz UD5005 universal player
    Parasound Halo P5 preamp
    Parasound HCA-1200II power amp
    PolkAudio LSi9's/PolkAudio SDA 2A's/PolkAudio Monitor 7A's
    Audioquest Speaker Cables and IC's
    · Share on FacebookShare on Twitter
  • hearingimpared
    hearingimpared Posts: 21,136
    edited May 2010
    Polkersince85 wrote: »
    They are not sealed airtight. There is some leakage. Lay off the mushroom tea.

    .
    therealjeepguy wrote: »
    Roger, Roger, what's your vector, Victor? This is Delta N17634 on approach to runway two three left comin' in on heading three six zero north at one eight niner...tower, please advise. Oh, and stewardess, I'd like another cup of mushroom tea. Thank you. N one, seven, six, three four out.

    ROTFLMAO!!!:eek::D
    · Share on FacebookShare on Twitter
  • therealjeepguy
    therealjeepguy Posts: 62
    edited May 2010
    hearingimpared wrote: »
    ROTFLMAO!!!:eek::D

    Glad you liked! :)
    If you don't drive a Jeep, then please stay on the pavement.
    · Share on FacebookShare on Twitter
  • BeefJerky
    BeefJerky Posts: 1,320
    edited May 2010
    therealjeepguy wrote: »
    Roger, Roger, what's your vector, Victor? This is Delta N17634 on approach to runway two three left comin' in on heading three six zero north at one eight niner...tower, please advise. Oh, and stewardess, I'd like another cup of mushroom tea. Thank you. N one, seven, six, three four out.

    Funny, yes. However, at the risk of sounding anal, a pilot would not be saying "N one, seven, six, three four out." Instead, they would say "november, one, seven, six, three four out."
    · Share on FacebookShare on Twitter
  • therealjeepguy
    therealjeepguy Posts: 62
    edited May 2010
    BeefJerky wrote: »
    Funny, yes. However, at the risk of sounding anal, a pilot would not be saying "N one, seven, six, three four out." Instead, they would say "november, one, seven, six, three four out."

    Then that would be the first clue that I'm not a pilot...but I play one on the Polk forum. :cool:
    If you don't drive a Jeep, then please stay on the pavement.
    · Share on FacebookShare on Twitter
  • BeefJerky
    BeefJerky Posts: 1,320
    edited May 2010
    Mind you, I've only been aware of things like this since my friend became a pilot. Prior to such events, I never would've known the difference.
    · Share on FacebookShare on Twitter
  • mdaudioguy
    mdaudioguy Posts: 5,165
    edited May 2010
    What if...

    you're on to something???
    A perfectly airtight sub enclosure (with a valve for altitude adjustments)!! Perhaps it would be amazing! :)
    · Share on FacebookShare on Twitter
  • therealjeepguy
    therealjeepguy Posts: 62
    edited May 2010
    mdaudioguy wrote: »
    What if...

    you're on to something???
    A perfectly airtight sub enclosure (with a valve for altitude adjustments)!! Perhaps it would be amazing! :)

    Yeah, yeah!!! And you could increase or decrease the pressure to custom tailor the type of sound and/or response to your desire!! Let's get a patent going, shall we? :D
    If you don't drive a Jeep, then please stay on the pavement.
    · Share on FacebookShare on Twitter
  • Face
    Face Posts: 14,340
    edited May 2010
    I log barometric pressure and dew point while demoing gear. ;)
    "He who fights with monsters should look to it that he himself does not become a monster. And when you gaze long into an abyss the abyss also gazes into you." Friedrich Nietzsche
    · Share on FacebookShare on Twitter
  • decal
    decal Posts: 3,205
    edited May 2010
    Not to mention, it would have to be cryogenically treated to bring out the best sound!!!!
    If you can't hear a difference, don't waste your money.
    · Share on FacebookShare on Twitter
  • hearingimpared
    hearingimpared Posts: 21,136
    edited May 2010
    decal wrote: »
    Not to mention, it would have to be cryogenically treated to bring out the best sound!!!!

    My ZYX cartridge is cryogenically treated.
    · Share on FacebookShare on Twitter
  • mdaudioguy
    mdaudioguy Posts: 5,165
    edited May 2010
    therealjeepguy wrote: »
    Yeah, yeah!!! And you could increase or decrease the pressure to custom tailor the type of sound and/or response to your desire!! Let's get a patent going, shall we? :D

    Perhaps we could sell plane rides to the edge of the atmosphere, at which point we'd seal the cabinet... Ultimate tweak!
    http://www.flymigsokol.com/video/fly_to_edge_of_space :)
    · Share on FacebookShare on Twitter