The Rane AC23 Active Crossover can be configured as a stereo 2- or 3-way, or a mono 4- or 5-way. It employs 4thorder Linkwitz-Riley filter alignments to minimize phase difficulties in the critical crossover region. The AC 23 uses ¼" TRS connectors with balanced/unbalanced Inputs and unbalanced Outputs.
This is a Used unit.
It has been tested, cleaned, and reboxed.
Operation manual included.
30 Day Warrenty.

The Rane RE 27 Realtime Equalizer is a single-channel, one-third octave equalizer and a single channel one-third octave realtime analyzer. Housed in a two rack-space unit, the RE 27 features long throw slide controls on each filter band ensuring good resolution over its boost/cut range of +12dB to -15dB.

The built-in realtime analyzer provides a visual indication of the amplitude characteristics of each one-third octave band and is designed to be used to flatten the response of a sound system with great ease.
A Flat-response microphone and pink noise generator are included to make the tasks as simple as possible.
This is a Used unit.
It has been tested, cleaned, and reboxed.
Operation manual included.
30 Day Warrenty.

Sabine FBX2020-Plus Dual Feedback Exterminator
Dual-channel, 20-bit digital filtering device that gives you automatic real-time feedback control and increases the clarity and volume of your system. The FBX2020-Plus automatically senses feedback in a sound system and determines its pitch. It then places one of 12 constant "Q" micro-filters on the resonating frequency and eliminates the feedback in typically less than one second.
Special features of the FBX2020-Plus:
The FBX2020-Plus is a dual-channel unit with an improved algorithm that allows it to better distinguish the difference between feedback and music.
It has improved 20-bit digital resolution, providing superior dynamic range and signal-to-noise ratio.
The FBX2020-Plus has 12 feedback filters per channel, giving the unit more feedback elimination power for the toughest venues.
The FBX2020-Plus's ClipGuard® adaptive clip level control, with TURBO set-up mode, increases the effective dynamic range by more than 10dB and makes set-up faster and easier.
The FBX2020-Plus now includes a Dynamic Filter Reset option.
The FBX2020-Plus incorporates an internal power supply.
Standard FBX features such as lockable fixed filters and switchable 1/10- and 1/5-octave constant "Q" filters are also included.
This is a Used unit.
It has been tested, cleaned, and reboxed.
Operation manual included.
30 Day Warrenty.