The Studio Channel is great for studio and live use. Its Class A preamp features a high-output 12AX7 tube and Gain and Tube Drive controls. The full-featured, VCA-based compressor includes Auto Attack/Release. The EQ can be pre- or post-compressor and has a fully parametric mid band and semi-parametric high and low bands that can be shelving or peak. Features include: · High-voltage Class A 12AX7 vacuum-tube mic/instrument preamplifier · Gain, Tube Drive, HP filter, -20 dB pad, phantom power, polarity reverse · Variable VCA compressor with Auto Attack/Release and Soft/Hard Knee · 3-band EQ with parametric mid and semi-parametric, shelving/peak low and high bands · Instrument, line, and mic inputs