Qsc 3 Series Users Manual
3 Series to the manual ed79d6b8-636a-f8e4-cdef-336f02d5c445
2015-02-05
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PowerLight™ 3 Series 2500 to 8000 watt, lightweight, 2RU amplifiers for use in the most demanding concert and live-sound reinforcement applications. WideLine-8 shown Power, flexibility, pristine audio quality and legendary QSC reliability — the ultimate concert amplifiers. Perfect for portable live sound and installed sound applications, including outdoor events, stadiums and arenas, casinos, nightclubs, restaurants, hotels, houses of worship, corporate campuses and convention centers. The concert stage is the ultimate test of professional audio technology. Concert audio performance has to be impec- Ultimate Audio Performance cable. Reliability, unshakable. Efficiency, unbeatable. Factory support, unstoppable. For One world class power supply, decades, QSC has set the standards in every two output technologies. one of these mission critical dimensions. Over four decades of R&D, we’ve learned to take innovative leaps one at a time. Top grossing concert performers are the Since PowerLight™ remains the world’s most demanding clients in the world. most efficient supply, we developed new There’s no room for compromise among output stages. the professionals who provide the technical foundation that allows those artists to PL340 & PL325: express their creativity. Time after time, tour Ultimate Class H Technology after tour, show after show, these industry We design for the total show: load-in to leaders stake their reputations — and their load-out and everything in between. That’s businesses — on QSC technology, without why the 2-tier linear PL340 and PL325 not second chances or retakes. Night after only have ruler-flat response into 8 ohm night, venue upon venue across the globe, loads, but similar transparency and detail QSC professional audio systems do exactly into 2 ohms. what Pat Quilter and his team of engineers designed them to do – deliver. PL380: Ultimate Class D Technology Class D amplifier design offers ultimate power conversion efficiency and entails greater complexity than linear topologies. It is also harder to master since it has more signal-conversion stages, each a source of errors that must be corrected. The PL380 more than doubles the output power Output filtering is another key to ultimate compromising signal alignment in multi-way and thermal capacity of our previous 2RU audio performance. Proprietary winding sound systems. designs, but it looks and sounds “linear,” techniques pack more copper on a smaller whether on the bench or driving speakers. coil, for better efficiency and lower distortion. Rigorous testing and precise alignment of feedback networks produce stable closed- Flexible System Architecture Choices: they’re what the PowerLight 3 Ultimate Real-World Headroom loop response. Series is all about. Upgrade analog racks and monitor them on stage. Go all the way to If you’ve been up on the riser ringing out fully networked digital signal distribution and The modulator converts analog input sig- drum monitors, or out at FOH aligning the processing with remote system manage- nals into varying on-off ratios – the PL380 subs with the mains, you know that head- ment. Combine elements of both approach- amplifier’s responds in under 5 nanosec- room is not measured by instantaneous es. It’s your decision, as it should be. onds. A crystal controlled, synchronized peak power ratings. It’s the ability of the power supply and Class D clocks prevent entire amplifier, from power supply to output interference between power stages. devices, to produce high voltages and cur- Ultimate Ruggedness rents for extended periods of time. Power- The real art of amplifier design is deliver- Our new Class D switching section uses a Light 3 Series amplifiers go head-to-head ing ultimate power output while protecting single pair of industrial strength devices that with products claiming much higher output. the entire system. Like all QSC designs, PowerLight 3 Series amplifiers had to pass easily handle kilowatts of energy without extra complexity. Our painstakingly refined Ultimate System Compatibility every one of our electrical and mechanical stress tests – so tough, we’ve never found PCB design controls high frequency currents to prevent internal interference. A Zero Signal Latency another amplifier brand that has survived proprietary dynamic current limiter monitors Of course the PowerLight 3 Series has the full test cycle. power stress in the output devices, deliver- DSP options. But none of them impose a ing the maximum power possible within latency penalty inside the amplifier. There’s safe operating limits. no other way to ensure compatibility with other amplifiers; no other way to avoid The PowerLight 3 Series includes the Class D PL380 as well as two Class H models. All share a common control, connector and indicator layout for neat and simplified integration into equipment racks. PL380: Ultimate Class D Performance and World-Proven PowerLight Technology Whatever you expect from switchmode amplifiers, you’ll get more from Pat Quilter’s ultimate Class D amplifier. More audio quality. More high-end transparency. More efficiency. Maximum Energy, Minimal Footprint The PL380 more than doubles the power of previous 2RU PowerLight amplifiers, yet draws only modest amounts of AC power. Even at full power, the PL380 converts up to 85% of input power into speakermoving, air-moving and audience-exciting output. That means half the losses and half the heat of competitive Class D amplifiers. This amplifier actually recycles “back EMF” energy from the loudspeakers. Real World Headroom and other extreme applications. This system Audition the PL380 head-to-head with any is simple and reliable, with far more safety high power Class D amplifier on the planet. margin than normal audio devices. We believe the PL380 has the highest overall efficiency, from AC plug to speaker Massive Where It Counts terminal, of any amplifier available. Peak The PL380 amplifier’s immense electrical output can reach 185V, and long-term aver- power is carried on a four-layer PCB with age power is about twice that of “typical” 3 ounce copper. Pat Quilter and his team high power Class D designs. The PL380 patiently refined grounding and shielding won’t lose efficiency when driving reactive to keep switching noise out of the sensitive loads. That’s important in the real world of audio circuitry. concert sound. Unrivalled Audio Performance From the ultra-fast modulator (its response time is measured in nanoseconds) to the high performance output filters, the PL380 PL380 output device (left) compared with has been designed to sound neutral, typical output devices. accurate and linear. Full-range distortion is exceptionally low, and free from “zerocrossing” distortion. Simply Efficient Amplifier Topology Each channel uses a pair of large-die FETs in a package normally used for motor drives To prevent unauthorized adjustment of input attenuation settings, a security lockout plate is included with every PowerLight 3 amplifier. PL340 & PL325: World-Proven PowerLight Technology and Ultimate Class H Performance Choose Your Technology Maybe you don’t need the PL380 amplifier’s 8 kW output. Perhaps you prefer the sound of linear output amplifiers for your highfrequency drivers. The PowerLight 3 Power Amplification System offers you two exceptional choices — the PL325 and PL340. Both amplifiers update QSC’s well-tested Powerlight 2 platform, a unique Class H technology that eliminates audible artifacts caused by switching between tiers. Their highly refined linear circuitry delivers the cleanest output signal available in a professional power amplifier. Our latest PowerLight supply has larger capacitors and more robust semiconductors for even higher peak power and energy storage. As always, PowerLight is designed for the places you work, tolerating surges and dips gracefully. Smooth System Integration Global Regulatory Compliance The PowerLight 3 Series is designed as a If your business is concert sound, you complete system for high-power concert never know how far the next gig will take amplification, not just a group of products. you — or what kind of regulations you’ll find That’s why all PowerLight 3 amplifiers share when you get there. PowerLight 3 Series a common control, connector and indicator amplifiers carry both UL and CE approvals, layout: it simplifies building and/or reconfig- and meet world recognized FCC Class A uring your racks, and keeps your wiring neat EMI limits for the PL380 and Class B for the and clean. PL325 and PL340. You may want to use other amplifiers alongside the PowerLight 3 Series. That’s why all three of these amplifiers have both PL3 Series Watts per channel Model 8Ω 4Ω 2Ω PL325 500 850 1250 Reliable Protection PL340 800 1250 2000 We take thermal overload as seriously as PL380 1500 2500 4000* you do. PowerLight 3 Series fans speed up EIA 1 kHz 1% THD. *Burst mode testing required due to AC service current limitations switchable input sensitivity and zero latency. if heat sinks rise above 55° C. Increased air flow is usually enough even during high level operation. Limiting begins above 80° C. Temperatures above 85° C only occur with fan or vent blockage: the amplifier will mute to prevent significant internal damage. Featuring a flexible architecture that provides users the choice of comprehensive, networked remote control, monitoring and DSP or the cost saving of a simple, straightforward analog input configuration. Rear Panels With All The Right Choices Optional Clip Limiting tor that can handle 25 A continuous. That’s Clip Limiter On/Off for each channel with almost twice the long-term power capacity Yellow LEDs. Designed as a backstop, this of some other amplifiers, and you’ll need to Flexible Input Connectors limiter converts hard clipping to a softer configure your AC distribution accordingly if Both Euroblock and parallel male / female form of peak clamping. Normal program you plan on using all of it. XLR input connectors let you choose the best dynamics are unaltered. way to simplify your analog signal wiring. Selectable High Pass Filters A DataPort HD15 connector is your inter- Engage 33 Hz or 50 Hz high pass infrasonic face to QSControl.net™ for remote control, filters to protect woofers and preserve monitoring and audio signal routing via an headroom – or bypass them. Ethernet network. For the first time, analog DataPort audio signals are directly paral- A Choice of Output Connectors leled with the XLR inputs to give you even The PowerLight 3 Series gives you a choice more signal-patching choices. of output wiring as well: both Neutrik Choose Your Line Level are included on all three amplifiers. The Three Position Sensitivity Switch with channel 1 Speakon carries both output color coded LEDs: 26 dB (Orange), 32 dB channels for direct connection to bi-ampli- (Green), or 1.2 V (Yellow). The switch set- fied loudspeakers. Speakon® and “Touch Proof” binding posts ting is visible on QSControl.net. Choose Your Operating Voltage Versatile Input Routing PowerLight supplies are factory optimized Stereo / Bridge / Parallel Input Routing for 120 VAC or 240 VAC operation. The Switch with front and rear panel LEDs plus PL380 amplifier’s 120 VAC cord is designed QSControl.net display. for continuous full power operation, with 12/3 wiring and a 30 A Twist-Loc connec- Road-Rugged Construction and Comprehensive Internal Protection The PowerLight 3 Series incorporates all the lessons we’ve learned on thousands of shows around the world to make sure that your amplifier racks will be as reliable as you are. Rugged Construction QSC design and construction have been tested and refined for decades. A single large circuit board carries all core power circuitry and the solid aluminum heat sinks with ducted fan flow. Breakaway boards for inputs, displays, line filters etc. are connected by vibration-resistant, flexible ribbon cables and wiring. The Art of Reliable Design will reduce gain to keep average current High Frequency Protection Protecting the entire amplifier without manageable. If the input signal is so ex- Most switchmode amplifiers mute when compromising performance is the essence treme, or the load impedance so low, that attempting to reach full power at 20 kHz, of professional audio design. limiting cannot prevent excessive long-term especially into low-impedance loads. The currents, the amplifier channel will mute PL380 amplifier’s internal limiting will bring periodically to reduce average stress. power down to a “mere” 1000 watts in this PowerLight 3 Series amplifiers are protected against thermal overload, prolonged instance. This limiter can be observed on the over-current output, excessive AC current AC Current Protection bench, but real world compression drivers draw and excessive high-frequency output. At peak output, the PL380 amplifier’s are unlikely to require these power levels. To give you maximum headroom without PowerLight supply can draw up to 100 A burnout, breaker tripping or other “show- at 120 V. To protect internal fuses, distro DC Fault Protection stoppers,” the system uses long time con- breakers, and power supply components, In the event of a DC fault, the PL380 stants. Do you need “last resort” clip limiting the system limiting will cut long term cur- amplifier’s PowerLight supply shuts down with a very fast time constant that won’t af- rents to 30 A. AC protection does not occur instantly to protect your drivers. You may fect program dynamics? PowerLight 3 Series on normal program material, even when need additional protection for compression amplifiers give you that choice as well. the amplifier is driven into frequent clipping. drivers or other loads that can’t absorb all Over-Current Protection All PowerLight 3 Series amplifiers have Patent-pending circuitry in the PL380 mea- relay-bypassed inrush limiting to keep turn- Choose your technology, choose your sures actual losses in each output FET and on surges from exceeding normal operating system architecture. No matter what instantaneously clamps peak current to safe current loads. your choice, PowerLight 3 amplifiers will the energy stored in the PL380 supply. values. If over-currents persist, the limiter bring ultimate performance, reliability and design integrity. Flexible System Architecture Analog System Compatibility With ample power and excellent cost, weight and rack space SC28 (or other analog I/O processor) per watt, the PowerLight 3 Series is your best choice. Zero-latency throughput in the amplifier racks using QSC’s PowerLight 3 Series Amplifiers SC28 System Controller or your Analog Audio favorite DSP unit means your meticulous system alignment won’t be compromised. Total Audio Networking Functionality PowerLight 3 amplifiers are BASIS 922uz compatible with BASIS processors and the QSControl.net network forming a comprePowerLight 3 Series Amplifiers hensive system incorporating extensive DSP, digital audio Digital Audio transport plus amplifier monitoring, management and control. Ethernet Switch Additional Amplifiers QSControl.net Software Additional Loudspeakers SPECIFICATIONS PL325 PL340 PL380 Stereo Mode (both channels driven) 8 Ω / EIA 1 kHz / 1% THD 4 Ω / EIA 1 kHz / 1% THD 2 Ω / EIA 1 kHz / 1% THD 500 W 850 W 1250 W 800 W 1250 W 2000 W 1500 W 2500 W 4000 W* Bridge Mono Mode 8 Ω / EIA 1 kHz / 1% THD 4 Ω / EIA 1 kHz / 1% THD 1700 W 2500 W 2600 W 4000 W 5000 W 8000 W* Typical Distortion (20 Hz - 3 kHz, 3dB below clip, or 20 Hz 5 kHz, 10 dB below clip, or 20 Hz - 20 kHz, 20 dB below clip) 8Ω 4Ω 2Ω 0.002 - 0.01% 0.005 - 0.01% 0.02% 0.002 - 0.01% 0.005 - 0.01% 0.02% 0.01 - 0.03% 0.03 - 0.06% 0.1% Maximum Distortion (20 Hz - 20 kHz, 1 dB below rated power) 4-8Ω 0.05% 0.05% 0.2% Frequency Response (8 Ω) 20 Hz - 20 kHz, +/-0.2 dB 20 Hz - 20 kHz, +/-0.2 dB 20 Hz - 20 kHz, +/-0.2 dB Noise (20 Hz - 20 kHz, 32 dB Gain) -106 dB -105 dB -104 dB Dynamic Headroom (4 Ω) 2 dB 2 dB 2 dB Damping Factor (8 Ω) 500 500 200 Output Circuitry Class H (2-tier) Class H (2-tier) Class D Input Sensitivity (26 dB Setting) (32 dB Setting) 3.28 V 1.60 V 3.92 V 1.96 V 5.27 V 2.67 V Input Gain (1.2 V Setting) 34.5 dB 36.4 dB 39.1 dB Input Impedance (Ω) >10k, balanced or unbalanced >10k, balanced or unbalanced >10k, balanced or unbalanced Maximum Input Level (1.2 V Setting) (32 dB Setting) (26 dB Setting) 11 V (+23 dB) 14.6 V (+25.5 dB) 25 V (+30 dB) 11 V (+23 dB) 18 V (+27.4 dB) 25 V (+30 dB) 10 V (+22 dB) 22 V (+29 dB) 25 V (+30 dB) Controls and LEDs - Front Panel Common: AC Power Switch, Power (Blue), Br Mono (Yellow), Par (Orange) Each Channel: Signal -35 dB, -20 dB (Green), -10 dB (Orange), Clip/Prot (Red), Gain Control, 21 detents, 1 dB steps Controls and LEDs - Rear Panel Common: Input Mode: Parallel (Orange), Stereo (Green), Br Mono (Yellow) Sensitivity: 26 dB (Orange), 32 dB (Green), 1.2 V (Yellow) Each Channel: LF Filter: Off, 30 Hz (Yellow), 50 Hz (Orange) Clip Limit: Off, On (Yellow) Input Connectors Common: HD-15 DataPort (inputs wired in parallel with XLR) Each Channel: Male XLR, Female XLR, 3-pin terminal block connector Output Connectors Each Channel: 5-way Binding Posts, Neutrik Speakon®, (Both Ch 1 and Ch 2 amp outlets available on Ch1 Speakon®) Amplifier and Load Protection Short circuit, open circuit, thermal, RF protection. On/off muting, DC fault shutdown, active inrush limiting AC Power** / Cordset 120 V 50/60 Hz 230 V 50 Hz 8.5 A / NEMA-15 7.5 A / Euro 16 A Dimensions (HWD) Height: 3.5" (8.9 cm) 2 RU / Width: 19" (48.3 cm) / Depth: 15.63" (39.7 cm) from front mounting rails Weight - Net / Shipping 22 lb (10 kg) / 31.5 lb (14.3 kg) 12 A / NEMA-15 7 A / Euro 16 A 22 lb (10 kg) / 31.5 lb (14.3 kg) 18 A / 30 A Twist-Loc 11 A / Euro 16 A 24 lb (11 kg) / 33.5 lb (15.2 kg) U. S. Patent no. 5767744 and patents pending * Burst mode testing required due to AC service current limitations ** Representative of current draw with typical music program material with occasional clipping All specifications are subject to change without notice. www.qscaudio.com Phone: 1-800-854-4079 or 714-957-7100, Outside the U.S. 714-754-6175 / Fax: 714-754-6174 1675 MacArthur Boulevard, Costa Mesa, CA 92626 090407 ©2007 QSC Audio Products, Inc. QSC, the QSC logo, PowerLight, QSControl.net and BASIS are registered trademarks of QSC Audio Products Inc. in the U.S. Patent and Trademark office and other countries. Speakon is a registered trademark of Neutrik. All other trademarks are the property of their respective owners.
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