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QSC PL340 PL3 Series Power Amp 800W @ 8 ohms

By QSC
Item #64866
(1 Review)
Price:
USD$1,597.00 Request Price Match

THE POWERLIGHT 3 SERIES

The PowerLight® 3 Series is designed for the most demanding live audio users, whether in touring rigs or fixed installations. The most requested features of the PowerLight 2 series have been upgraded to deliver "the ultimate analog amplifier", while the QSC Dataport ensures full compatibility with advanced digital processing and QSControl. Three models range in power from 1250 watts to 4000 watts per channel at two ohms, all in two-rack space chassis that are only 15.6" (40 cm) deep and 22 lbs (10 kg).

In addition to higher power, the PowerLight 3 Series offers higher input voltage, selectable sensitivity, and easily adjusted rear panel switches with color coded LED indicators. For those users who simply want a high performance amplifier to go with their existing processor or console, the PowerLight 3 Series is an ideal choice, offering high power, excellent value, and zero signal latency. When complete integration of amplifier control, monitoring and DSP is desired, the PowerLight 3 Series is fully compatible with the QSControl BASIS networked audio platform, with its comprehensive drag and drop DSP functionality. Simpler DSP requirements can be met with the DSP-4 processing module.

For lower power applications, the PL325 and PL340 offer the same feature set, matched to upgraded versions of QSC's most advanced linear amplifier platform. Recent advances in power supply capacitors further improve power and low impedance performance, while continuing to offer the best available audio performance. As a result, designers have the choice of running a single type of amplifier throughout their rig, or matching amplifier performance to specific transducer types.

In keeping with normal QSC design standards, back-to-front airflow provides up to twice as much long-term average power as most competitors, without dumping hot air into the rack. All PowerLight 3 models are built in the same chassis size, with common back panel layouts to facilitate easy racking and hookup.

FEATURES

• Linear Class H output circuit doubles standard Class B efficiency to reduce AC current consumption and cooling requirements
• PowerLight switchmode power supply for highest efficiency and improved audio performance
• Flow-thru air path and solid aluminum heat sinks for maximum cooling
• DataPort supports remote computer control and/or external DSP-4 modules
• Detented gain controls with 1 dB steps for precise calibration
• Removable knobs with lock-out security plate to prevent unauthorized tampering
• User defeatable clip limiters and selectable low-frequency filter per channel (3 Hz, 30 Hz, or 50 Hz)
• Three selectable input gains (26 dB, 32 dB, or 1.2 V)
• Front and rear panel LEDs indicate status of switch settings at a glance
• Parallel Dataport, XLR/M and XLR/F connectors for simple loop-through connectivity
• Neutrik Speakon® and "Touch Proof" binding post outputs
• Neutrik Powercon® power cable remains secure on the road (early PL380 units will have hardwired power cables until UL approval of 30A Powercon is complete)
• 3 year warranty, plus optional 3 year extended service contract

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Class D or H power?
kelly on Feb 22, 2011
BEST ANSWER: Linear Class H output circuit doubles standard Class B efficiency to reduce AC current consumption and cooling requirements.
QSC PL340 Reviews
4.0 / 5.0
1 Review
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not just for bands...........
Pros: Good Power,2db of headroom,Durable,Clean Sound
Cons: Difficult To Set Up,Cooling fan

I bought this because I am getting sick of these extremely expensive audiophile power amps!! I have used such beasts as Krell, B&K, Pass Labs(great stuff) and my best ones I have used were the Classe monoblocks! As far as this QSC pl340--I must say I am inpressed at the overall clarity and tone, the bass is VERY tight and has a good low end to it, the midrange is a bit open, but not harsh to the ear, it does NBOT fatigue at all! The highs are very sweet and roll off quite nice, considering this is a pro power amp. This is a 2 channel amp, and I havent shut it off in about 1 month now, Im doing my burn in to the amp. I must say there is a slight difference to it after the first 96 hour run,..I am using my NAD cd player w/ a B&K pro-10mc pre-amp in balanced hooks. The sound did mamage to warm up a little after the first 96 hour run, it is very pleasing to my ears, I have several speakers run on these, I use Energy rc-70s', MArtin Logan, and 2 pairs of older Cerwin Vega D-9's quite the jump from Martin Logann to Cerwin vegas, but then again I like loud music as well as a good sounding speaker. The Energy speakers are rated at only 250 watts, and I know I was pushing them to the limit w/ this amp, as I have never heard these speakers thump and just sound so open and effortless during playback of Megadeth and The Who,..as well as some old Cream and Iron Butterfly. This is a good combo,!! SO if your wondering aboiuyt the specs, I feel they are a bit off on certain things, the damping factor might be higher than stated , as the little 6 inch woofers on the Energy's were really not moving that much, and I had on some re-mastered dance stufffor my wife one evening, and she actualy said turn it down. I think if your curious, to give these a try, as if your gonna spend 20,000 on a pair of Accuphase 8000 mono blocks, or a pair od 16,000 Bryston 1000 watt mono blocks, then these amps will fit quite nice, as they have 1250 into 4 ohm, w/ 2db of headroom, 1.8 I think. they have a 3 year warranty and I bought an additional 3 years for [$], so a 6 year warranty!! Only thing is the fan in it, its not that loud, as the music drowns out the noise, and NO , there is no hum or feedback from the fan, the amp is absolutely silent while on idle, no hum, NOTHING from the speakers,......take that Parasound!! all in all this is a fantastic POWER amp, turn it up and sit back, and let this little guy do your music justice
November 28, 2008
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