Little Labs IBP Phase Alignment Tool - Used  From Little Labs

The IBP and IBP Junior easily eliminate the undesirable hollow sound when combining out-of-phase and partially out-of-phase audio signals. Designed as a phase problem solving device, the IBP Analong Phase Alignment Tool has quickly become popular among audio engineers as not only a “fix it” tool but as a controlling audio phase creative, tonal color tool.

• Allows mics to be placed where they sound best individually.
• No compromising mic place do to phase problems when using IBP technology.
• Rack mountable, 4 units fit in a 1U space.
• Real time all analog phase sweep between 0° and 180º

IBP (Includes the above features plus all the following:)

• Internal super quality active direct box.
• Internal “re-amplier” to convert pro-level to guitar level (w/ or w/o phase adjust).
• Buffered instrument level output for driving long guitar cables.
• Splitting between two instrument amps with transformer isolation + phase sweep.