Up for sale is an absolute powerhouse of a studio centerpiece—the Great River MixMaster 20! If you’ve been looking to pull your mix out of the box and give it that unmistakable depth, head-room, and analog magic, this unit is pretty much as good as it gets in a compact 3U rack.

Great River is legendary for their gear, and the MixMaster 20 combines a 20-channel summing mixer, 4 incredible transformer-coupled mic/line preamps, and a full control room monitoring section (talkback, multi-monitor switching, cue mixes) all into one box. It packs 16 custom transformers inside, giving your tracks that punchy, glued-together console sound without taking up an entire room.

Condition & Functionality:

• Condition: Very Good. It has been used with care in a smoke-free, climate-controlled studio environment.
• Cosmetics: Shows only light, normal rack wear around the mounting holes. Faceplate, knobs, buttons, and VU meters look clean and sharp.
• Operation: 100% fully functional. All inputs, outputs, pots, switches, and meters work smoothly and sound fantastic.

What’s Included:

• Great River MixMaster 20 Unit
• Original Power Supply & Cable

Shipping & Packing:

It will be packed with extra care (plenty of bubble wrap, heavy-duty box) and shipped prompt with tracking and full insurance. Local pickup is also welcome if you’re nearby!

Feel free to shoot me a message if you have any questions. Grab it before someone else claims your new studio upgrade!