return {
    {
        gain = 0,
        name = 'preamp',
    },
    {
        gain = 1.968134,
        name = 'eq',
        Q = 0.5,
        frequency = 800,
    },
    {
        gain = 2.019218,
        name = 'eq',
        Q = 0.5,
        frequency = 100,
    },
    {
        gain = 0,
        name = 'eq',
        Q = 0.5,
        frequency = 50,
    },
    {
        gain = 0.002471249,
        name = 'eq',
        Q = 0.5,
        frequency = 8000,
    },
}