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QSC RMX 850 Power Amp  

Product #481563

45 day price guarantee, 45 day return policy, 100% secure shopping


Item Note:

This product has been discontinued but may be available as a Open Box item.

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Clean, dynamic power and reliability pros depend on.

The QSC RMX 850 Power Amp combines their rugged high-output designs with the latest circuit technology to deliver unmatched performance at a breakthrough price. The RMX amps require only 2 rackspaces and feature 1/4" TRS, XLR, and barrier strip balance inputs; binding post and Neutrik Speakon outputs; front-mounted gain controls for easy access; independent and defeatable clip limiters; selectable low-frequency filters (30Hz or 50Hz) that protect speakers and increase headroom; signal and clip LED indicators; independent DC and thermal overload protection on each channel; variable-speed fan. The RMX850 delivers per channel: 200W @ 8 ohms, 300W @ 4 ohms, 430W @ 2 ohms. Bridge mono: 600W @ 8 ohms, 830W @ 4 ohms. 3-year warranty.

  • Unmatched performance at a breakthrough price
  • Requires 2 rackspaces
  • 1/4" TRS, XLR, and barrier strip balanced inputs
  • Binding post and Neutrik Speakon outputs
  • Front-mounted gain controls for easy access
  • Independent and defeatable clip limiters
  • Selectable low-frequency filters (30Hz or 50Hz)
  • Signal and clip LED indicators
  • Independent DC and thermal overload protection
  • Variable speed fan
  • Stereo: 200W @ 8 ohms
  • Stereo: 300W @ 4 ohms
  • Stereo: 430W @ 2 ohms
  • 3-year warranty

The best thing you can do for your power rack. Order today!

review resources


by PowerReviews
QSCRMX 850 Power Amp

(based on 4 reviews)

Ratings Distribution

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  • 1 Stars



Reviewed by 4 customers

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(2 of 2 customers found this review helpful)


Own it, Use it


from Oakwood, GA

Comments about QSC RMX 850 Power Amp:

I have a QSC RMX 850 amps in my amp rack currently and am pleased with it! I have had it in use since July of 2008 it is being used to power the mids of a triamped system and does a great job. I will at some point move this to the Highs when I can afford a QSC RMX 2450. I recommend this amp to anyone looking for a quality amp to power a small full range system, monitors or the high / mid on biamped or triamped system. GREAT products QSC!

(26 of 47 customers found this review helpful)


High perfomance and reliabilty for midrange dollars


from Hartford, MI

Comments about QSC RMX 850 Power Amp:

I have always been involved w/ every aspect of my bands, but recently, decided to invest in owning my own PA. I bought a QSC rmx series amp to drive the mains against everything I've been told (Buy Crown or stay @ home) I've been running the QSC for about a year now and it has performed beautifully. Ample power for my 700w per side 2x15 mains running in true stereo. I can push them right on the razors edge for hours and the amp never gets hot or distorts sound. Loud as heck!!! I will be buying another to power my 18's soon. Currently I am using my guitar players JBL power amp but I know the QSC will out perform and outlast the JBL. Don't get me wrong I am a home audio/video installer in my day job and my company is a licensed dealer of Harman/kardon - JBL equip. and that is the parent company of crown, I love that stuff if money is no problem. However QSC is hands down the best bang for the buck when it comes to pro line amplification.

(23 of 46 customers found this review helpful)


Great investment! Great investment! Great investment!


from NC

Comments about QSC RMX 850 Power Amp:

Just purchased this unit. Initially I was going to purchase a Behringer 2500 because of the price and wattage. However, I'm glad I went with the QSC. Less power but better investment. Quality sound. It does what the features says it would do. Had my first gig and it worked great. I was pushing a Behringer 18 inch sub and it made it sound better than it would with another unit. Can't beat the warranty. I plan to purchase another one soon. QSC will be the only amp I'll ever buy! Trust me and go with the better investment.

(64 of 112 customers found this review helpful)




from brooklyn

Comments about QSC RMX 850 Power Amp:

I had this amp for 4 years now and it never fails me. Some people might think because is 800 watts is not worth it, but it is! I have 2 Peaveys pr15and they sound great and loud. This amp will never shut down on you.

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