Must try MOD - Foam inside the stamped steel baskets - YES!

167891012»

Comments

  • Posts: 4,551
    edited November 2024
    odcics2 wrote: »
    The magnet and surrounding area is much larger than the outer basket with the 4 holes. Foam helps, but there is a lot or room for improvement left on the table.
    mq9pa1l9mhuo.jpeg

    I got my question answered regarding whether or not CSD would be a way to measure this and it turns out it just might be. Unfortunately CLIO isn't in my budget in the near future:

    uar1s0qjtwuk.jpg

    https://www.parts-express.com/Audiomatica-CLIO-Pocket-Version-2-Personal-Acoustic-Measurement-System-390-900?quantity=1
    George / NJ

    Polk 7B main speakers, std. mods+ (1979, orig owner)
    Martin Logan Dynamo sub w/6ft 14awg Power Cord
    Onkyo A-8017 integrated
    Logitech Squeezebox Touch Streamer w/EDO applet
    iFi nano iDSD DAC
    iPurifier3
    iDefender w/ iPower PS
    Custom Steve Wilson 1m UPOCC Interconnect
    iFi Mercury 0.5m OFHC continuous cast copper USB cable
    Custom Ribbon Speaker Cables, 5ft long, 4N Copper, 14awg, ultra low inductance
    Custom Vibration Isolation Speaker Stands and Sub Platform
  • Posts: 1,992
    gp4jesus wrote: »
    Interesting…

    One of the higher-end tire manufacturers, attempting to attenuate ~200hz road noise using a similar execution of foam on the interior
    While shopping for tires (daughter’s Corolla) I saw this thinking “I MUST post this for George et al:”
    “… 9dB - that is how much our ContiSilent™ can reduce the sound of road noise inside your car. An inner tyre absorber, made of polyurethane foam, is attached to the inner surface of the tyre tread, to cushion the road.” Different material and frequency range target but answers Hansvelton’s question. As I said elsewhere: Foaming my LC*Rs’ mids significantly reduced their upper midrange “bark.”
    *accomplished after original comment and Rob’s Plug mod

    Buon Felice Natale and “Joyous listening!”

    Samsung 60" UN60ES6100 LED, Outlaw Audio 976 Pre/Pro, Samsung BDP, Amazon Firestick, Phillips CD Changer

    Canare 14 ga - LCR tweeters inside*; Ctr Ch outside
    BJC 10 ga - LCR mids “Foamed & Plugged**”, inside* & out
    8 ga Powerline: LR woofers, inside* & out
    *soldered **Rob the Man (Xschop)

    LR: Tri-amped RTi A7 w/Rotels*. Woofers - 980BX; Tweets & Mids - RB981*
    Ctr Ch: Rotel RB981* -> Bi-amped CSi A6
    Surrounds: Rotel 981* -> AR 12 ga -> RTi A3
    *all connected w/Premiere ICs
    5 Subs: Sunfire True SW Signature -> LFE & Ctr Ch; 4 Audio Pro Evidence @ the “Corners”

    Power Conditioning & Distribution:
    4 dedicated 20A feeds; APC H15; 5 Furman Miniport 20s
  • For some reason your post reminded me of Ellen Barkin 🤣

    https://www.youtube.com/watch?v=WXzsVDl08A4
    George / NJ

    Polk 7B main speakers, std. mods+ (1979, orig owner)
    Martin Logan Dynamo sub w/6ft 14awg Power Cord
    Onkyo A-8017 integrated
    Logitech Squeezebox Touch Streamer w/EDO applet
    iFi nano iDSD DAC
    iPurifier3
    iDefender w/ iPower PS
    Custom Steve Wilson 1m UPOCC Interconnect
    iFi Mercury 0.5m OFHC continuous cast copper USB cable
    Custom Ribbon Speaker Cables, 5ft long, 4N Copper, 14awg, ultra low inductance
    Custom Vibration Isolation Speaker Stands and Sub Platform
  • Posts: 4,551
    edited December 2024
    But seriously, pretty different application and much thicker so absorbs lower frequencies and vibrations like you get inside a tire, but cool just the same.

    wewy22o47tx2.jpg

    Reminds me a little of my Tannus Armor inserts on my mountain bike tires. Quieter but mainly for flat prevention. Used to get a couple every year and haven't had one in the last 10 years. It was always thorns believe it or not!

    d62ai5987ad8.jpg

    George / NJ

    Polk 7B main speakers, std. mods+ (1979, orig owner)
    Martin Logan Dynamo sub w/6ft 14awg Power Cord
    Onkyo A-8017 integrated
    Logitech Squeezebox Touch Streamer w/EDO applet
    iFi nano iDSD DAC
    iPurifier3
    iDefender w/ iPower PS
    Custom Steve Wilson 1m UPOCC Interconnect
    iFi Mercury 0.5m OFHC continuous cast copper USB cable
    Custom Ribbon Speaker Cables, 5ft long, 4N Copper, 14awg, ultra low inductance
    Custom Vibration Isolation Speaker Stands and Sub Platform

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