Dual mono amps and SDA SRS 2.3TL

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  • pitdogg2
    pitdogg2 Posts: 24,927
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    xschop wrote: »
    pitdogg2 wrote: »
    FWIW our electrical genius here determined that the dreadnought is better standing up and not laying on its side.
    Once again FWIW.

    I thought DK originated the mod?

    As I said, DK is the genius.
  • Gardenstater
    Gardenstater Posts: 4,281
    edited February 2
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    70hemicuda wrote: »
    Phone rings in both.

    I think to shield out GHz frequencies like in a cellphone, you would need a conductive sealing gasket because at those small wavelengths, any little crack will prevent shielding.

    "Prevent Gaps in Enclosures
    Gaps in the enclosure should be avoided at all costs; however, this is critical at frequencies beyond 5 kHz. Small holes in the enclosure can cause severe problems at high frequencies, especially those between 100 MHz and 40 GHz. There should be more focus on shielding holes and gaps at higher frequencies. Gaskets that are malleable and pliable are ideal for this application. The gasket should maintain continuous electrical contact with the enclosure with modest tensile stress while providing good conductivity.
    As a general rule, the greater the frequency, the more critical it is to keep your shield free of holes or gaps. The use of soft and flexible gaskets might be beneficial in some instances. The distance between the fasteners and the structure's stiffness determines how stiff your gasket should be. Instead of avoiding gaps, a stiff gasket might cause doors, lids, or panels to deflect and leave holes in the sealant. The enclosure no longer shields higher frequencies.
    Tolerances determine gasket thickness and material selection in the enclosure or panel fabrication process. To begin, the conductive layer located on the exterior of the gasket must have the same galvanic range as the materials that are used in the building of the enclosure. Galvanic corrosion impairs electrical conduction and shielding efficacy."

    https://www.yg-enclosure.com/article/what-is-emi-shielding-and-what-enclosure-should-you-use.html

    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
  • Schurkey
    Schurkey Posts: 2,100
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    Won't matter with two big plastic speaker-terminal connections.
  • Gardenstater
    Gardenstater Posts: 4,281
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    Schurkey wrote: »
    Won't matter with two big plastic speaker-terminal connections.

    I was assuming diecast aluminum or pot metal but I bet you are correct after looking more closely.
    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
  • pitdogg2
    pitdogg2 Posts: 24,927
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    He's correct they're plastic.