2/21/2012

QSC GX3 Stereo Power Amplifier Review

QSC GX3 Stereo Power Amplifier
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(More customer reviews)
I started looking around for a performance power amp that was in between crown and Behringer. Now while I consider Crown the holy grail of power amps, I didn't feel like spending the cash for the Harley-Davidson of power amps. So when looking, I actually took a look at parts express and their most popular power amps. To me, the majority of the people that visit that site have their head screwed on straight and care about quality products. While a lot of the reviews showed promise for Behringer, my cousin and I currently employ a tube based preamp in my studio, and while it worked flawlessly in the beginning, all the pot's on my preamp are now fuzzy and buzzy. His preamp sucked from day one, buzzing at 60Hz, requiring post process filtering which saps the nuances out of the recording. To sum up my opposition to Behringer, I didn't feel like getting a product that worked well for a year or two, though I just bought a Behringer 8-channel mixer to go with it ($60 and not regretting it yet, but we'll see)
Hooking it up to my 6.5" jbl studio s26-ii's, I was blown away by its punch and clarity. Mind you, its normally being driven by an 80W/ch Onkyo (0.08%THD). The speakers had more dynamic to the sound, and it was absolutely fantastic. I had done this while I awaited the arrival of my MTX PA speakers.
I bought a pair of MTX TP2400 to go along with it. They are definitely not the greatest speaker out there, but they put out the high SPL sound I was looking for in a live performance. The amplifier drives them pretty well, though I cant help but be slightly disappointed with the result. I am confident that the amp is not the culprit though due to how well it has driven my other smaller studio speakers.
I think these cheap PA speakers really show the beauty of the amp though, Its speaker/clipping protection made the music stay at uninterrupted high levels. The other great thing is the 6 year transferable warranty. While I don't really care too much about warranties, Behringer's abysmal 1 year warranty pushed me over to QSC. That's pretty much saying what I think about my current products, they know its too risky to warranty a product longer than a year.
I hope you find this info useful, because these guys deserve every sale they get.

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The QSC GX3 amplifier is ideal for professional entertainers who require maximum performance and portability on a limited budget. QSC designers, headed by Pat Quilter, have optimized output and appearance while reducing raw material cost and weight. It's all here - dramatic styling, easy hookup and adjustments, excellent audio quality and QSC reliability. QSC GX3 Features Power levels matched to the most popular speakers used by entertainers Optimized for maximum real-world headroom into 4 Ohm and 8 Ohm speaker systems Inputs: XLR, 1/4-inch TRS and phono input connectors for compatibility with any source Outputs: Speakon combo accepts, 1/4-inch (TS) plugs or Speakon 2-pole and 4-pole plugs (connects 2 poles only). Binding posts support all other speaker wiring systems. Minimum depth chassis (10.1 inches/257 mm) fits in compact, inexpensive effects racks Lightweight - less than 26 lbs (12.5 kg) Detented gain controls for precise settingand matching of sensitivity GuardRail automatically protects the amplifier and loudspeakers from damage due to temperature rise or overdrive without shutting down the show Front panel LEDs monitor Power, Signaland Clipping Subwoofer/Satellite crossover built-inGX Entertainer GX amplifiers deliver just the right amount of power to the most popular speakers used by entertainers. Most loudspeaker manufacturers recommend an amplifier with power output equal to the speaker's Program (Music) Power rating or two times (2 x) the Continuous (RMS) Power rating. The GX3 is ideal for speakers in the 300 watt (Program) range.The GX3 supplies maximum possible power to 4 ohm and 8 ohm loads. Technical Notes The GX3 uses the latest evolution of the QSC Grounded Collector output system, for optimum cooling of the critical power transistors. A true

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