Free Shipping on All Orders 1-866-764-1801

Vist our Online Store
+ Reply to Thread
Results 1 to 16 of 16
  1. #1

    Member Sales Rating: (0)

    Join Date
    Jul 2011
    Location
    SW Ohio
    Posts
    2,012

    Default Down Firing vs. Front Firing Subs

    Does either design have an advantage over the other?
    "My wife likes my rig......HAHAHAHAHAHAHAHAH!"


    B&W CDM 1NT; B&W CDM CNT; Infinity us 1; Velodyne DEQ-8 x2; Pio Elite VSX-23; Sony SCD-CE595 SACD, Denon DP11-F TT[/COLOR]

  2. #2

    Member Sales Rating: (27)

    Join Date
    Mar 2003
    Location
    NC
    Posts
    20,951

    Default

    Some argue down firing subwoofers will be a tad louder as gravity is on its side...

    On the flip side some will argue that down firing subwoofers are not as accurate as front firing...

    But otherwise no... no real advantage
    www.Vr3Mods.com ///// www.Version3Audio.com

    "No, that's silly talk. Dude, you can't possibly be this audio dumb so quit the act." - Doro

  3. #3

    Member Sales Rating: (0)

    Join Date
    Jul 2011
    Location
    SW Ohio
    Posts
    2,012

    Default

    Quote Originally Posted by VR3 View Post
    Some argue down firing subwoofers will be a tad louder as gravity is on its side...

    On the flip side some will argue that down firing subwoofers are not as accurate as front firing...

    But otherwise no... no real advantage
    Thanks, didn't really think so either. My sub is down firing, sitting on carpet.
    "My wife likes my rig......HAHAHAHAHAHAHAHAH!"


    B&W CDM 1NT; B&W CDM CNT; Infinity us 1; Velodyne DEQ-8 x2; Pio Elite VSX-23; Sony SCD-CE595 SACD, Denon DP11-F TT[/COLOR]

  4. #4

    Member Sales Rating: (27)

    Join Date
    Mar 2003
    Location
    NC
    Posts
    20,951

    Default

    It would benefit you if it does not have a plate at the bottom to put a tile or concrete slab beneath it
    www.Vr3Mods.com ///// www.Version3Audio.com

    "No, that's silly talk. Dude, you can't possibly be this audio dumb so quit the act." - Doro

  5. #5

    Member Sales Rating: (16)

    Join Date
    Nov 2007
    Posts
    3,891

    Default

    I may be completely wrong, but it just seems to me that since a down firing sub's dispersion pattern is circular, a portion of the radiated energy will go 'away' from the listening area to hit the front wall and reflect 'back' - as opposed to a front firing sub where all of the radiated energy goes directly towards the listening area.

    H9: If you don't trust what you are hearing, then maybe you need to be less invested in a hobby which all the pleasure comes from listening to music.

  6. #6

    Member Sales Rating: (0)

    Join Date
    Jul 2011
    Location
    SW Ohio
    Posts
    2,012

    Default

    Quote Originally Posted by VR3 View Post
    It would benefit you if it does not have a plate at the bottom to put a tile or concrete slab beneath it
    Good! I had started a thread about that very question, but had no response, thanks.
    "My wife likes my rig......HAHAHAHAHAHAHAHAH!"


    B&W CDM 1NT; B&W CDM CNT; Infinity us 1; Velodyne DEQ-8 x2; Pio Elite VSX-23; Sony SCD-CE595 SACD, Denon DP11-F TT[/COLOR]

  7. #7

    Member Sales Rating: (31)

    Join Date
    Feb 2007
    Location
    Long Island
    Posts
    14,729

    Default

    Quote Originally Posted by Erik Tracy View Post
    I may be completely wrong, but it just seems to me that since a down firing sub's dispersion pattern is circular, a portion of the radiated energy will go 'away' from the listening area to hit the front wall and reflect 'back' - as opposed to a front firing sub where all of the radiated energy goes directly towards the listening area.
    Due to the size of bass sound waves, any monopole(non-open baffle/dipole) sub will have a circular pattern.
    "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

  8. #8

    Member Sales Rating: (16)

    Join Date
    Nov 2007
    Posts
    3,891

    Default

    Quote Originally Posted by Face View Post
    Due to the size of bass sound waves, any monopole(non-open baffle/dipole) sub will have a circular pattern.
    Wouldn't the directionality have an effect on how much is forward (front firing) vs reflected (down firing)?

    H9: If you don't trust what you are hearing, then maybe you need to be less invested in a hobby which all the pleasure comes from listening to music.

  9. #9

    Member Sales Rating: (27)

    Join Date
    Mar 2003
    Location
    NC
    Posts
    20,951

    Default

    Bass is non-directional by default if I remember correctly... its such a large wave
    www.Vr3Mods.com ///// www.Version3Audio.com

    "No, that's silly talk. Dude, you can't possibly be this audio dumb so quit the act." - Doro

  10. #10

    Member Sales Rating: (16)

    Join Date
    Nov 2007
    Posts
    3,891

    Default

    Quote Originally Posted by VR3 View Post
    Bass is non-directional by default if I remember correctly... its such a large wave
    It's non-directional as far as ability to localize source, but for energy dissapation and 'accuracy' wouldn't it still be dependent on 'design'? Meaning a downward firing sub still dissipates/radiates signal content and energy equally in all downward directions (and so 1/2 or a portion thereof NOT in the direction of the listening space)?

    H9: If you don't trust what you are hearing, then maybe you need to be less invested in a hobby which all the pleasure comes from listening to music.

  11. #11

    Member Sales Rating: (31)

    Join Date
    Feb 2007
    Location
    Long Island
    Posts
    14,729

    Default

    With a standard ported/sealed sub, nope. It's polar response is still a circle.

    When dealing with dipole, ripole, and open baffle subs things change, their polar response is shaped like an 8.
    "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

  12. #12

    Member Sales Rating: (31)

    Join Date
    Feb 2007
    Location
    Long Island
    Posts
    14,729

    Default

    The only other considerations with a downfiring sub is the reduced amount of x-max(travel) available and not all sub drivers are suitable for downfiring: http://www.parts-express.com/resourc...nt-up-down.cfm
    "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

  13. #13

    Member Sales Rating: (16)

    Join Date
    Nov 2007
    Posts
    3,891

    Default

    Fascinating!


    Really...thanks.

    H9: If you don't trust what you are hearing, then maybe you need to be less invested in a hobby which all the pleasure comes from listening to music.

  14. #14

    Member Sales Rating: (6)

    Join Date
    Sep 2003
    Location
    Arizona
    Posts
    16,218

    Default

    That is interesting, learn sumthin new everyday.

    Source: Squeezebox Touch/CIA Power Supply
    DAC: Benchmark DAC/PRE
    Linestage: Placette RVC Passive
    Power Amp: Parasound HCA-1500A
    Speakers: Harbeth Compact 7ES-3 Monitor
    Subwoofer: SVS PB12-NSD

  15. #15

    Member Sales Rating: (0)

    Join Date
    Aug 2011
    Location
    Upstate S.C.
    Posts
    602

    Default

    good link. I've never thought about it that way before but it makes perfect sense. basically you would look for a driver with a higher Fs (at least to a point). Low Fs driver generally have either a heavier moving mass or a looser suspension or both. Those qualities would contribute to greater sag from the diaphragm / suspension. Unless the driver had an adjustable suspension to compensate, similar to the old CV Strokers. But that then would also change the Fs and other attributes of the driver.

    On another note; if one was worried about the radiation pattern of the front wave and its directionality. A down-firing sub could then be slot loaded similar to what VMPS has used for their passives in many designs. This would leave only one side open to point whichever direction you desired.

  16. #16

    Member Sales Rating: (6)

    Join Date
    Sep 2003
    Location
    Arizona
    Posts
    16,218

    Default

    It's not the method so much, as it is about the end result.

    Source: Squeezebox Touch/CIA Power Supply
    DAC: Benchmark DAC/PRE
    Linestage: Placette RVC Passive
    Power Amp: Parasound HCA-1500A
    Speakers: Harbeth Compact 7ES-3 Monitor
    Subwoofer: SVS PB12-NSD

Thread Information

Users Browsing this Thread

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

     

Similar Threads

  1. Down firing versus front firing
    By Karzai in forum Speakers
    Replies: 13
    Last Post: 11-01-2009, 10:30 AM
  2. 2 subs, one front firing, one bottom...
    By camtah in forum Subwoofer Hookup & Bass Management
    Replies: 14
    Last Post: 10-23-2005, 12:50 PM
  3. Front Firing vrs Down Firing Subs
    By PPuleo in forum Subwoofer Hookup & Bass Management
    Replies: 15
    Last Post: 04-07-2004, 11:29 AM
  4. Subwoofers-Front Firing vs Down Firing
    By ohrbrcko in forum 2 Channel Audio
    Replies: 3
    Last Post: 10-04-2003, 03:17 PM
  5. Front Firing vs. Downward Firing Subs
    By hamzahsh in forum Subwoofer Hookup & Bass Management
    Replies: 1
    Last Post: 08-31-2003, 06:51 AM

Posting Permissions

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