This is a quality Japan made vintage EQ. This is a 2 channel, stereo, 10 element graphic equalizer with tape monitor. Vector Research was an LA based company that used the same Japanese electronics factories that NAD did,.. and this explains the black color and similar design of this unit. In superb condition. It has low miles. It is fully functional, and great sounding. I did an internal cleaning service on this using Deoxit electronic contact spray. All lights, buttons, and faders work perfectly, without any unwanted noise. This has a cool LED output meter. This has not been modified in any way. It is a fully stock original unit with original Japanese components within.