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QSC RMX850 Power Amplifier (430 Watts)

Independent, defeatable clip limiters reduce distortion without sacrificing peak performance. 2 rack spaces tall.

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"QSC amp is a sound value" submitted November 24, 2006

By a customer from hotmail.com
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Musical Background: Producer
Music Style: Electronic
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Sound: I've used Peavey and Crown amps in the past to push our sound system (6 loudspeakers w/4 10" and 3 horns on each & 1 Peavey monster subwoofer) and have had good experiences. At the recommendation of a colleague I went with QSC this time around and am very impressed with the quality of sound. I think it is at least equal to my Crown, better than my Peavey. Feature: This amp has all the features I need. Peavey amps tend to have better features - cooling system is better in my opinion -- but the QSC has all the options I need with bridging, inputs, outputs, clip, etc. Ease of Use: Most good amps generally plug and play... this is no different. Quality: Constructed well, sound quality is good, and more amps per channel than Peavey amp, equal to Crown. Value: Between sound quality, amps per channel, construction, and features, QSC is the best value on the market. Manufacturer Support: Haven't had to deal with them. The Wow Factor: No regrets - I will purchase QSC next time I'm in the market with my experience so far. Overall: I'm very hapy with the product. Overall I rate it as high as I can.
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"Reliable power amplifier with good, clean sound." submitted December 23, 2011

By a customer from peoplepc.com
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Ease of Use
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Musical Background: 45+ years. Primary instrument is bass guitar, but also like drums & keys. Currently writing/composing/producing my own music.
Music Style: Combination of jazz, rock, new age, environmental, movie underscore
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Sound: Currently using it in a home studio. Frequency response is good and it produces a nice, clean sound to my studio monitor speakers. Feature: Most useful: connectivity; front exhausting cooling fans; configuration capabilities. Nice having a front-mounted power switch. Ease of Use: Using it is as easy as it comes. Turn it on and it works - reliably. The only learning curve would be in the initial configuration as regards determining the type of cables/connectors and the appropriate dipswitch settngs for the particular application. Quality: Built like a tank. A bit on the heavy side, but I would expect it to last many years. Value: Yes. It's a quality amplifier from a quality company. Manufacturer Support: Have installed many of these amplifiers when working for a video systems integrator and haven't really had any problems that required calling the service department. The Wow Factor: Was using lesser cost alternatives until I could afford to upgrade. There has been a noticeable improvement in the quality of the sound since incorporating it into my home studio. Overall: Always have had good success with many different QSC products. I would expect it to keep working for a long time and should it need replacing for whatever reason, I would buy from them again. For my particular application, the only negatives I have found are a) the weight, although this could also be considered a positive from the standpoint of reliability; and b) the fans are a bit noisy if mounted directly in the mixing space.
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"great quality and reliability for a fair price"

By a customer from aol.com
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Music Style: 50's-60's-70's show band
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Sound: always great- very seldom have to adjust the eq. Feature: turn it on and forget about it! Quality: we play 150 one night jobs a year-never had a problem-have the same units for backup (8 total amps) only use them on monitors. They stay loaded in our truck all year round and are subjected to extreme heat and cold. Value: yes Manufacturer Support: no problems The Wow Factor: practical and affordable Overall: untill it wears out! meets all our requirements.
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QSC RMX 850 Power Amp Customer Review submitted October 9, 2007

By a customer from gmail.com
Overall
Sound
Features
Ease of Use
Quality
Value
Manufacturer Support
The Wow Factor
Musical Background: Active Musician
Music Style: Techno, Metal
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Sound: Overall sound quality is there, but the fan can be noisy. Keep this in mind if you plan to use this in a sound sensitive environment. Feature: Infinite options using the dip switch setup on the rear. Bridging, crossover points, etc are all documented well on the case for on the fly adjustments without a manual. Speakon is a great feature, with the exception of channel two Speakon only will drive channel two on the amp. Ease of Use: See above. Out of the box it will function the same as any 2 channel power amp. Further adjustment can be made on the rear. Quality: Extremely well built. Interior is very solid, with the torroidal transformer mounted directly to the chassis with each stage on either side. Wiring is clean and braided and PCB quality is on par with much more expensive amplifiers. Value: For the price, you won't find many amplifiers of this caliber. You really do get a lot for your dollar. Manufacturer Support: I needed help repairing a unit after it fell quite some distance. An enginner researched which components I needed. QSC is one of very few who will sell replacement parts and assemblies, as well as including engineering drawings and schematics in the support section of their website. The Wow Factor: They look like a utilitarian power amp. Nothing really special. The rack ears are dual layer. The back portion is part of the chassis, while the front portion unbolts. This makes bring the unit back to decent cosmetic condition a snap. Beware tho, if you bend the ears beyond use, you'll have to replace the entire chassis as they are a part of the chassis. Overall: I would buy another. I'd like to see QSC put out a smaller 1U unit in the 100-150 watt range, and with passive cooling, (no noise in the studio.)
7 of 8 people (87.5%) found this review helpful. Did you?
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