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Big Jeff Online Inc is a family based business and is able to give one on one time with our customers

Phase Technology® began as United Speaker Systems® in 1955 and has stayed on the leading edge of speaker design and engineering since that time. Today, PhaseTech ensures our products consistently earn critical acclaim from home theater and audiophile enthusiasts worldwide.
19 products
  • Rockustics ONESUB 8" Grey Landscape 4 Ohm 350W Subwoofer Home Outdoor Audio

    Regular price
    $999.00
    Sale price
    $999.00
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  • Rockustics ONESUB 8" Sandstone Landscape Subwoofer 4 Ohm 350W Home Audio

    Regular price
    $999.00
    Sale price
    $999.00
    Add to cart
  • Rockustics DUBSUB Grey 8" DVC Outdoor Subwoofer 350W 4Ohm Home Audio

    Regular price
    $1,199.00
    Sale price
    $1,199.00
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  • Rockustics DUBSUB 8" DVC Subwoofer 350W 4Ohm Sandstone Outdoor Home Audio

    Regular price
    $1,199.00
    Sale price
    $1,199.00
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  • Rockustics XT-SURROUND STONE Grey 8" Outdoor 100W 4 Ohm Speaker w/ Transformer

    Regular price
    $817.00
    Sale price
    $817.00
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  • Rockustics Sandstone PowerRock 8" High Power Outdoor Speaker Real Rock 250W

    Regular price
    $940.00
    Sale price
    $940.00
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  • Rockustics MG4 4"100W 8 Ohms Landscape Brown Speaker Outdoor Home Audio

    Regular price
    $175.00
    Sale price
    $175.00
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  • Rockustics XT-SURROUND STONE 8-S 8" Outdoor Speaker w/ Transformer 100W 4 Ohm

    Regular price
    $817.00
    Sale price
    $817.00
    Add to cart
  • Rockustics Grey PowerRock 8" High Power Outdoor Speaker Real Rock 250W

    Regular price
    $940.00
    Sale price
    $940.00
    Add to cart
  • Rockustics Coconutz 5.25" 2-way Outdoor Hanging Speaker 150W 4Ohm Home Audio

    Regular price
    $220.00
    Sale price
    $220.00
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  • Rockustics SUBSCAPE 12 Outdoor In-Ground 600W 10" Subwoofer Home Audio

    Regular price
    $834.00
    Sale price
    $834.00
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  • Rockustics SUBSCAPE 10 Outdoor In-Ground Band Pass 10" Subwoofer Home Audio 500W

    Regular price
    $667.00
    Sale price
    $667.00
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  • Rockustics SUBSCAPE 8 Outdoor 300W In-Ground Band Pass 8" Subwoofer Home Audio

    Regular price
    $550.00
    Sale price
    $550.00
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  • Rockustics 6.25" 2-Way Outdoor 200W Speaker Weatherproof Home Audio

    Regular price
    $259.00
    Sale price
    $259.00
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  • Rockustics 4.5" 2-Way Outdoor Landscape Speaker Weatherproof Home Audio 100W

    Regular price
    $192.00
    Sale price
    $192.00
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  • 5.25" Real Rock Coax Outdoor Speaker Weatherproof Patio Garden Grey Home Audio

    Regular price
    $246.50
    Sale price
    $246.50
    Add to cart
  • 6.5" Real Rock Coax Outdoor Speaker Weatherproof Patio Garden Sand Home Audio

    Regular price
    $309.40
    Sale price
    $309.40
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  • 5.25" Real Rock Coax Outdoor Speaker Weatherproof Patio Garden Sand Home Audio

    Regular price
    $246.50
    Sale price
    $246.50
    Add to cart
  • 100W Underground Outdoor Speaker 5" Patio Subwoofer Weatherproof Tweeter

    Regular price
    $551.65
    Sale price
    $551.65
    Add to cart