The Electro Harmonix Battalion is a flexible bass preamp and DI that delivers powerful tone-shaping capabilities in a rugged pedalboard-friendly package. The EHX Battalion Bass Preamp and DI is packed with a four-band equalizer, a fully-featured MOSFET distortion section with three signal path options, a compressor, a noise gate, and a comprehensive I and O. An all-in-one tone tank for your bass guitar. Features It has a four-band EQ tailored specifically for bass guitar. This includes controls for Bass (below 200Hz), Lo Mid (boost and cut at 280Hz Mid (boost and cut at 750Hz), and Treble (boost and cut above 2kHz). The Battalion’s distortion section delivers an awesome array of distorted bass sounds. The distortion section features Level, Blend, Drive, and Tone controls plus a dedicated footswitch. Three signal flow modes yield unique tonal variations. Pre-EQ, distortion comes before EQ. Post EQ, distortion comes after EQ and Dry EQ, only the dry signal mixed in with the Blend control is affected by the EQ. Compressor with a dedicated push button, amount control, and LED adds thump and sustain to your bass sound. Noise Gate with adjustable threshold control eliminates noise and hum while preserving your attack and original tone. Flexible I and O allow the Battalion to fit perfectly in any bass rig or application. The 1/4 input jack includes a switchable 10dB pad.