The ADL 700 channel strip combines a single-channel version of the award-winning ADL 600 Class A tube preamplifier with one 12AT7 and two 6922 vacuum tubes; a fully variable, FET compressor; and a four-band semi-parametric equalizer. This high-end, 2U rack-mount unit provides separate, balanced XLR mic, balanced XLR line, and TS instrument inputs with Source Select and a balanced XLR output and includes phantom power, a -20 dB pad, and polarity reverse