Comments about Technical Pro EQ-S5150 - Professional Equalizer with Digital Spectrum (Silver):

I purchased this equalizer to give my audio system (Yamaha receiver with JBL speakers) that sound feeling I used to have in older systems. The very first thing I did after taking this unit out of the box was to move the slides, they feel weak, and the plastic cover of each slide can easily fall off. I hooked it up and turned it on and it did not get any better. The display is way too loaded and bright, and not blue as pictured, there is a "scan" button that is just to have slides led lights "scanning"... you got to be kidding!. It has other two buttons "High VFD" and "Low VFD" which I haven't figured out what they are for. The unit looks good as long as it's kept turned off and you do not look at it so close, LOL!. Regarding performance, it just does what any other equalizer does, I haven't used it much yet but I noticed some sound distortion in certain songs, the decibels controls are imprecise: no effective and suddenly too sensitive.
The unit produces heat, quite more than what I would expect from a passive EQ.
If I have to use one single word to qualify this unit, it might be "cheap". My 9 years old son enjoyed this "Designed in USA, engineered in Japan, made in China" thing, he said it was so cool while playing with the slides lights and the scan button. This is a toy for kids, not for serious audio enthusiasts. I call this EQ "the shame" of my home audio setup.
Add some bucks and look for something better built and from a recognized manufacturer.