All user reviews for the QSC RMX 4050HD

The RMX 4050 HD is a high powered amp with 4000 watts and filters on it. It comes with clip indicators and clip limiters giving you the most possible power that you could ask for. This is one of the most expensive amps that I have used from QSC costing over 1500 bucks. You can rack this unit and it will take up 3 rack spaces, it also weighs about 70 pounds which makes it a little more difficult to tote around with you over some of the lighter QSC models. But if you are looking for power this is it, it will provide more than enough power for your set up even if you are in a large space.
It also has a cooling system built into it because with this much power and using it for long periods of time it will get warm and even hot pretty quick. The cooling system is automatic and you don’t even have to worry about it, it will stay cool. This amp I also very quiet outside of hearing the fan kicking on, you will not hearing any humming or hissing coming from this amp.
On the RMX 4050 HD it gives you the options to select your low frequency filters, you can pick from 30 HZ or 50 HZ, and you can monitor your show or performance right on the front of the unit with the clip LED lights.
This unit has everything you need for your show, I recommend getting this if you have the 1500 dollars to spend on an amp. You will get your money worth with the first use once you hear how much power it will give you and how big your sound will be. I have used this amp many times for larger shows, and it is by far one of the best larger amps I have ever used.