The X Series H1 incorporates the newly developed filter core (core-L4) to boost the performance. Of course, the HyperDriveTM technology is included as well.


HyperDrive technology reduces noise to levels far below any of its predecessors. Additionally, this newest innovation by Chang improves sound stage, dynamics contrast, inner details, 3-dimensionality, high frequency extension, and video reproduction. All in all, Chang’s HyperDrive technology stretches the performance of the Lightspeed Powerline Filter to an unprecedented level.

X-Series H1

  • Digital Outlets – Level one filtration (Core-L4))
    Amplifier Outlets – Level two filtration (Core-L4) 
    Analog Outlets – Level four filtration (Core-L4)
    TV/Phono Outlets Filtration  – Level four filtration (Core-L4)


    HyperDrive(TM) technology (Core-H1)

    RoHS (Restriction of Hazardous Substances) Compliant
    Maximum Power – 2500 W @ 125 VAC
    Power Consumption – 3 W @ 125 VAC ; unit does not sleep
    Power 20 high current-low noise power cord
    Surge Protection Capacity - 560 J / 40 000 A
    Maximum Continuous Current - 20 A
    Operating temp: : -40 ~ 85 °C (-40 ~ 185 °F)
    Level 2 power factor correction
    Dimensions = L x D x H 
    483 x 235 x 135 mm (19 x 9.25 x 5.3 in.)
    Net weight: 7.8 kg (17.1 lbs)



Michael Chang, engineer and stereophile, designed the Lightspeed Powerline Filters after being disappointed with the powerline filters available on the market. Mr. Chang's design eliminates AC contamination without the use of lag/noise inducing transformers or coils. In 1991, Michael and his sister Stella founded Chang Audio Corporation.


A small staff of technicians hand assembles and tests each unit from quality parts before it is shipped out. The combination of this care in craftsmanship, with the effectiveness of filtration and the units' low cost, has won Chang Lightspeed Powerline Filters acclaim and buyers worldwide.