Comes with power supply.

I used this on a lot of recordings and it's great! Just looking to move on from it.

The MX300 from Lexicon is dual-mono/stereo reverb/delay processor, that delivers the classic Lexicon sound in a professional package, and at an attractive price.

The MX300 provides classic Lexicon reverbs and delays, plus dbx compression and de-essing, along with five different routing combinations. Editing patches is intuitive and simple, thanks to a Page/Select wheel, three top-level parameter controls plus Exit, Tempo and Bypass selectors, and a large front-panel.

The unit is perfect for band PAs, churches and clubs, as well as in the studio. Because the built-in dbx compression and de-essing can be used in tandem with reverb, the MX300 is a great tool for taming problem vocalists. The processor was designed to withstand dust, moisture, shock, power surges and all the other rigors of live sound use.

• Stereo/dual-mono reverb/delay processor with USB connectivity, S/PDIF digital input/output
• Sixteen legendary Lexicon reverbsProvides delay and modulation effects, dbx compression and de-essing
• Five effect-routing options
• Hardware can be controlled and patches saved, via the Windows VST and Mac Audio Units plug-in software and USB port
• Includes MX-Edit Editor/Librarian software
• Easily editable at the unit using the large front-panel LCD display and intuitive controls
• MIDI input and output