http://www.amptweaker.com/page/TightDrive-Pro-Overdrive-by-Amptweaker-91.aspx
Dual Lit Boost controls via Boost footswitch
3 Band EQ, w/ Smooth Edge sw. and PlexEQ sw.
3 effects loops....Universal, Boost with Pre/Post switches, and the SideTrak loop that works when the pedal is OFF! Patch in clean effects
Gain, Tight & Volume Controls
High Gain switch for overdrive tones, off for cleaner transparent boost tones
Noise Gate switch, with internal adjustment, tracks gain
Mid switch with PlexEQ setting
Mid Boost switch tweaks Boost to punch through
Internal Fat switches for warmer Rhythm and/or Boost tones
Can be used as a preamp, or into the front of your amp
LED lit knobs when using a power supply
Battery disconnect switch with red indicator
Runs on 9V-18V batteries or supplies–like 'variacing' your amp up and down, or similar to 50W versus 100W tone
Current: 18mA with 1 or 2-9V batteries, 22mA with 9V adapter, 24mA with 18V adapter(adapters add knob LEDs....internal switch disconnects 1-9V battery clip