Equalizer

<svg
    xmlns="http://www.w3.org/2000/svg"
    width="682.667"
    height="682.667"
    viewBox="0 0 682.667 682.667"
>
    <defs>
        <clipPath id="a" clipPathUnits="userSpaceOnUse">
            <path d="M0 512h512V0H0Z" />
        </clipPath>
        <clipPath id="b" clipPathUnits="userSpaceOnUse">
            <path d="M0 512h512V0H0Z" />
        </clipPath>
        <clipPath id="c" clipPathUnits="userSpaceOnUse">
            <path d="M0 512h512V0H0Z" />
        </clipPath>
    </defs>
    <g clip-path="url(#a)" transform="matrix(1.33333 0 0 -1.33333 0 682.667)">
        <path
            d="M83.857 15H15v68.857h68.857zM83.857 152.714H15v68.857h68.857zM83.857 290.429H15v68.857h68.857zM221.571 15h-68.857v68.857h68.857z"
            fill="none"
            stroke="#000"
            stroke-width="30"
            stroke-linecap="butt"
            stroke-linejoin="miter"
            stroke-miterlimit="10"
            stroke-dasharray="none"
            stroke-opacity="1"
        />
    </g>
    <path
        d="M221.571 152.714h-68.857v68.857h68.857z"
        transform="matrix(1.33333 0 0 -1.33333 0 682.667)"
        fill="none"
        stroke="#000"
        stroke-width="30"
        stroke-linecap="butt"
        stroke-linejoin="miter"
        stroke-miterlimit="10"
        stroke-dasharray="none"
        stroke-opacity="1"
    />
    <g clip-path="url(#b)" transform="matrix(1.33333 0 0 -1.33333 0 682.667)">
        <path
            d="M359.286 15h-68.857v68.857h68.857z"
            fill="none"
            stroke="#000"
            stroke-width="30"
            stroke-linecap="butt"
            stroke-linejoin="miter"
            stroke-miterlimit="10"
            stroke-dasharray="none"
            stroke-opacity="1"
        />
    </g>
    <path
        d="M359.286 152.714h-68.857v68.857h68.857zM359.286 290.429h-68.857v68.857h68.857z"
        transform="matrix(1.33333 0 0 -1.33333 0 682.667)"
        fill="none"
        stroke="#000"
        stroke-width="30"
        stroke-linecap="butt"
        stroke-linejoin="miter"
        stroke-miterlimit="10"
        stroke-dasharray="none"
        stroke-opacity="1"
    />
    <g clip-path="url(#c)" transform="matrix(1.33333 0 0 -1.33333 0 682.667)">
        <path
            d="M359.286 428.143h-68.857V497h68.857zM497 15h-68.857v68.857H497ZM497 152.714h-68.857v68.857H497ZM497 290.429h-68.857v68.857H497Z"
            fill="none"
            stroke="#000"
            stroke-width="30"
            stroke-linecap="butt"
            stroke-linejoin="miter"
            stroke-miterlimit="10"
            stroke-dasharray="none"
            stroke-opacity="1"
        />
    </g>
</svg>