Excellent working unit has new battery installed, factory reset, IEC power cable and rack mount bolts & washers.

The Sabine Power-Q (ADF-4000) is a digital audio processor that combines multiple sound-shaping and room-analysis tools into a single 2U rack-mount unit. The Power-Q effectively does away with racks of gear by providing the following extensive and highly useable and necessary features in one box:

• Up to 12-band Parametric Equalizer, with Hi & Lo Pass Filters;
• 31-band Graphic Equalizer, with adjustable filter widths;
• Up to 12-band FBX-Feedback Exterminator, with adjustable sensitivity;
• Real Time Analyzer, full-featured & filter based, with reference mic input;
• Compressor/Limiter, full featured;
• Noise Gate/Expander, full feature;
• Digital Delay for speaker alignment
• 99 different stored sound settings

Key Audio Features

• Equalization: Up to 12-band parametric EQ with high/low pass filters, plus a 31-band graphic EQ with adjustable filter widths.
• Feedback Control: Up to 12-band FBX feedback exterminator with adjustable sensitivity.
• Analysis: Built-in filter-based real-time analyzer (RTA) with a reference microphone input for automated room equalization. Similar to DBX Driverack.
• Dynamics & Delay: Full-featured compressor/limiter, noise gate/expander, and a digital delay for speaker time-alignment.
• System Management: ClipGuard adaptive clip level control and programmable memory presets.

This single 2U unit is easy to use, very user intuitive, and replaces many (& expensive) separate rack mount pieces. It also minimalizes overall gear weight while providing highly detailed sound with 99 separate storage spaces.