I have an AT4033a/SM, with the -10dB attenuator switch. I am recording vocals, and I don't understand if I should be using the pad switch or not. The manual says this for Maximum Input Sound Level: 145 dB SPL, 1 kHz at 1% T.H.D. 155 dB SPL, with 10 dB pad (nominal) So I suppose vocals aren't really going to go 155dB SPL (?), so I would NOT engage the -10dB pad? is this correct? Or can vocal plosives get up there, and I 'should' use the -10dB pad?