EMB Professional Sound System EB631EQ Graphic Equalizer

Lo eh usado poco pero funciona perfecto se ve de construcción solida de buena calidad.

Once the 115V transformer was changed for one working from 240V it is fine. However, a straight 240V: 12V: 12V does not work and required some extra turns to be hand wound to achieve the open circuit voltage of 18V: 18V. A straight 240V: 18V: 18V winding gives too high an open circuit voltage. Once this bifilar winding of about 46 turns was added to the 12V: 12V to make 18V: 18V open circuit everything works well. The unit provides excellent performance at a good price. The morale is to make sure you have a unit for a working voltage of 240V. The units are available with alternative input voltages.

Best deal out there on equalizers, works great, sounds great, if you own a 10 band EQ ditch it and get this you won't be sorry. Only one thing I wish they put the on-off button on the front not the back, but as the owners manual states, when not in use it uses such a small amount of power that it can be left on at all times.

I just got this and installed it. Can't give a review yet. Maybe put one on later, but so far, works fine.

When i received this unit (bot it "new"), it was VERY OBVIOUS that it was not new and pristine; the box had been opened and retaped, as clear as day. THEN, when i connected it to my sound system (and i am an electrical/recording engineer), the LED's were DEAD. NO LIGHTS WHATSOEVER. On top of that, there was soooo much HISS it sounded like a pissed off cat. You must be joking i said. So i isolated this unit by itself, and man o man the hiss level was over the top ridiculous. The seller accepted the return but IS NOT COMMUNICATING on my refund. OVERALL THIS HAS BEEN ONE OF THE WORST EXPERIENCES I HAVE EVER HAD IN TEN YEARS THROUGH AMAZON. And i buy at least 10 grand of stuff a year. I DO NOT RECOMMEND THIS PRODUCT OR THIS VENDOR. If there was a "zero" star rating, this would be it. Sincerely and honestly Dave H.