Mill River Music brings you a used Sunn Alpha Four 4-channel Mixer! Straight out of the 1970s, we learned this mixer works great after testing it in house!
The Sunn Alpha Series came in 4, 6 and 8 channel models, this being the 4! Each channel takes a 1/4" input, and has controls for "Volume," "Bass" and "Treble" EQ control, and "Reverb;" there are "Master Reverb" and "Master Volume" knobs to dial in the sound as well, and a red "Condition Indicator" that shows you when your signal is clipping! The back panel has your output jacks, which should be at most 2 cabinet speakers rated at 4 Ohms total; the back also has an "Effects Line Out," "Reverb" footswitch (to toggle the effect on and off), and "Accessory To and From" jacks. This mixer is functional and ready to go, despite how its aged since being made and use. Come by the shop to give this mixer a try!
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Ships carefully packed and insured for full value. International buyers are welcome — please contact us for a shipping quote before purchasing.
About Mill River Music
Mill River Music is an independent, human-powered music shop located in downtown Northampton, MA, run by a team of players, enthusiasts, and certified repair technicians. Every piece of used gear we sell is personally inspected, tested, and set up before it ships — we don't list it until we'd be happy to play it ourselves.
As Martin and Taylor certified techs, we hold our guitar work to a high standard, and we're committed to full transparency about the condition of everything we sell. No surprises.
When you buy from Mill River, you're supporting an independent local business that genuinely cares — about gear, about players, and about doing things right. We're here every step of the way. Reach out anytime.