Here’s a Roland SN-700 Noise & Hum Eliminator in good condition.
It powers up and appears to function as it should but it has NOT been completely tested for full functionality.
There are some marks on the top but nothing out of the ordinary.
The SN-700 is a powerfully effective tool for live PA productions and studio recording. Since noise canceling divides the audible spectrum into seven bands and reduces noise in the way most suitable for each band, noise can be effectively eliminated with minimal adverse impact on the program material.