return {
    {
        gain = 0,
        name = 'preamp',
    },
    {
        gain = -3.38983,
        name = 'eq',
        Q = 1.5,
        frequency = 105,
    },
    {
        gain = -4.02439,
        name = 'eq',
        Q = 1.0085594744935,
        frequency = 450,
    },
    {
        gain = -2.99435,
        name = 'eq',
        Q = 1.1573638301192,
        frequency = 2803.6763776542,
    },
}