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  1. #1

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    Default Cheap, REALLY cheap, subwoofer mod

    In an effort to tighten up the bass in my Bic F12 sub I was researching on the net and found this thing called a "Subdude" on Amazon. Basically, it's a foam rubber mat that your sub sits on that decouples the sub from the floor, the theory that less floor resonance would equal tighter bass. Problem is I didn't want to spend 60 bucks on foam rubber to find out.

    I picked up some of these from Lowes and put them under all four feet of my sub:

    Name:  074523029183lg.jpg
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    http://www.lowes.com/pd_67023-255-42...ter&facetInfo=

    ...and lo and behold, tighter bass! It's amazing what these do to clean up the sub frequencies. This is a quick, $2 mod that needs to be heard to be believed. The bottom end of my HT is really cleaned up with these things. I had to play around with the sub volume a bit--it needed to be turned up to compensate for the lack of floor resonance--but the difference is impressive. What really grabbed me is how well my bass shakers integrate with the new sub mod. Before, the shakers seems to be fighting with the sub, almost like a sub-bass crosstalk issue. That's gone and now the sub and shakers seem to work in concert.

    If anyone tries this or has already tried it I'd be interested to hear their thoughts.
    _______________________________________
    TV: 52" LED Sharp Aquos Quattron
    Fronts: Polk SDA-2A --- Front Heights: Polk RC65i --- Rears: Polk RC85i --- Sub: BIC America F12
    Tactile Transducers: Aura Pro Bass Shakers powered by Pyle Pro 2x25 Amplifier
    AVR: Marantz SR5004 --- Harman Kardon HK3490 --- Roku 2XS --- Magnavox BDP

  2. #2

    Member Sales Rating: (11)

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    Toronto, ON, Canada
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    Default

    I have cone-shaped spikes (with small matching discs) under my subs. Spikes decouple subs from the floor, so the bass really tightens up.

  3. #3
    Audiophile
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    Default

    Congrats!
    Jake

    Quote Originally Posted by Erik Tracy View Post
    What difference does it make? None if you can't tell a difference.

  4. #4

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    Default

    How do spikes decouple a sub from the floor? The job of a spike is to couple a speaker or sub to the floor to tighten up the bass. When has this changed?
    Lg 55LW5600 TV
    Onkyo PR-SC 5508
    Polk Sda Srs 2.3 Fronts
    Polk cs 400i Center
    Polk F/X500i Rears
    Sunfire Grand Cinema
    Behringer iNUKE NU6000DSP
    Pair of CraigSUB SS-18.1

  5. #5

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    Default

    Quote Originally Posted by ROHfan View Post
    In an effort to tighten up the bass in my Bic F12 sub I was researching on the net and found this thing called a "Subdude" on Amazon. Basically, it's a foam rubber mat that your sub sits on that decouples the sub from the floor, the theory that less floor resonance would equal tighter bass. Problem is I didn't want to spend 60 bucks on foam rubber to find out.

    I picked up some of these from Lowes and put them under all four feet of my sub:

    Attachment 81098

    http://www.lowes.com/pd_67023-255-42...ter&facetInfo=

    ...and lo and behold, tighter bass! It's amazing what these do to clean up the sub frequencies. This is a quick, $2 mod that needs to be heard to be believed. The bottom end of my HT is really cleaned up with these things. I had to play around with the sub volume a bit--it needed to be turned up to compensate for the lack of floor resonance--but the difference is impressive. What really grabbed me is how well my bass shakers integrate with the new sub mod. Before, the shakers seems to be fighting with the sub, almost like a sub-bass crosstalk issue. That's gone and now the sub and shakers seem to work in concert.

    If anyone tries this or has already tried it I'd be interested to hear their thoughts.
    Does the sub dance across the floor now?

    Main HT/2 ch:
    Pioneer KRP-500M, SC-07, BDP-05FD, Emotiva XPA-5 x 2, XPA-1 x 2,
    Polk Audio LSi25, RTi12 x 2, LSi15 x 4, LSiC x 2, PSW1000 x 4,

    MB HT/ 2 ch:
    LG 47LM5800, Pioneer VSX-9040TXH, BDP-23FD, Sony BDP-S790, Emotiva XPA-2, XPA-5,
    Polk Audio LSi25, LSi15, CSi5, LSiFX, PSW505 x 4

    Listening Room 2 ch:
    Emotiva RSP-2, RPA-1, ERC-2, Pro-Ject RM5.1, Focal Chorus 814V, DSW600
    Adcom GCD 750, GFP 750, GFA 5802, Polk LSi9, DSW600

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