return {
    {
        gain = 0,
        name = 'preamp',
    },
    {
        gain = -5,
        name = 'eq',
        Q = 0.7,
        frequency = 170,
    },
    {
        gain = -3,
        name = 'eq',
        Q = 1,
        frequency = 2200,
    },
    {
        gain = -5.356236,
        name = 'eq',
        Q = 0.5,
        frequency = 3000,
    },
    {
        gain = -4.810985,
        name = 'eq',
        Q = 1,
        frequency = 5700,
    },
    {
        gain = 3.8,
        name = 'eq',
        Q = 2,
        frequency = 6900,
    },
    {
        gain = 10,
        name = 'eq',
        Q = 3,
        frequency = 10600,
    },
    {
        gain = -10,
        name = 'eq',
        Q = 7,
        frequency = 13350,
    },
}