Yup...in fact, I have used (and plan to after the studio upgrading here is finished later this summer) a pair of tube bandpass filters in the analog side of my mixchain which I set up to roll off everything from 10 Hz down and from about 15 kHz up. The filtering eliminates potential low-end losses due to detrimental subsonics and/or DC, as well as countering the 'brittle' sonic issues that result from excessive high-frequency aliasing, particularly in the octave immediately prior to the Nyquist frequency. Plus, this puts 11 active 12AX7A stages per channel into the mixchain to add some extra euphonic even harmonic emphasis, thereby warming things up a tad and deepening the presence of the higher-mids and highs.