QSC Audio 6.0 II manual

1 TD-000108-00 rev .A *TD-000108-00* PowerLight Series PowerLight 6.0 II User Manual TM[...]

2 © Copyright 2002, QSC Audio Products, Inc. QSC® is a registered trademark of QSC Audio Products, Inc. “QSC” and the QSC logo are registered with the U.S. Patent and T rademark Office Combo is a registered trademark of Neutrik Inc., Lakewood, NJ . Speakon™ is a registered trademark of Neutrik Inc., Lakewood, NJ IMPORT ANT SAFETY INSTRUCTIO[...]

3 INTRODUCTION Overview ...........................................................................................4 Illustrations.............................................................................5 UNP ACKING Unpacking and Inspection..................................................................................6 What is Included......[...]

4 INTRODUCTION- General Overview Thank you and congratulations on your purchase of the QSC PowerLight 6.0 II professional power amplifier . This product represents the state-of- the-art in power amplification systems for professional touring, permanent installations, and other SR (sound reinforcement) applications requiring high levels of sustained[...]

5 INTRODUCTION- Illustrations FRONT P ANEL 1- Power switch 4- Gain controls 2- Power , Standby , and Protect LEDs 5- Signal, -20 dB, -10 dB, and Clip LEDs 3- Cooling air exhaust vents REAR P ANEL 1- Cooling air inlet vents 2- Domestic (North America) fixed AC power cord entry 2A- Export IEC-style detachable power cord entry 3- Mode switch (Bridge/S[...]

6 The PL6.0 II is highly durable and is carefully packaged. We recommend you inspect the unit carefully after removing it from the packaging, as occasionally there may be damage due to some unfortunate incident during shipment. Report any damage to the shipping carrier . We recommend saving the carton and packing material. It is always a good idea [...]

7 SETUP- Rack Mounting Supporting the Rear of the Amplifier For mobile and touring use, it is extremely important to support the rear of the amplifier . The chassis and rack can be damaged if the amplifier is not properly supported. Unless the amplifier is being installed in its final, fixed location, QSC strongly recommends supporting the rear of [...]

8 SETUP- Cooling Requirements The PL6.0 II has four rear -mounted variable- speed fans. Fan speed is determined by the temperature of the amplifier’ s internal heatsink assembly . Cooling air is drawn into the rear of the amplifier by the fans and exhausts through the front panel. The temperature of the air exiting the front vents is a good indic[...]

9 SETUP- AC Power Requirements AC Power Before connecting the amplifier to the AC mains, check the serial number plate to verify operating voltage. The PL6.0 II is available in 120 or 240 V olt models. Make sure the AC mains voltage is the same as specified on the serial number plate. 120 V olt models have the AC cordset hard- wired to the chassis.[...]

10 SETUP- Operating Mode Selection Stereo Mode Operating Mode Selection The operating Mode selection switch determines how the inputs are routed to the two amplifier channels and how the outputs are connected to the speakers. The Mode selection switch is located on the rear panel, left bottom corner . It is a three-position slide-switch. The switch[...]

11 Parallel Mode Bridge Mode In Parallel Mode, the channel 1 and channel 2 input connectors are connected in parallel. Applying an input signal to either input will drive both channels. Make sure only one input signal is applied to the ampli- fier when operating in Parallel mode. Each channel still has independent gain control, clip limiting, and o[...]

12 Audio Input Connections CONNECTIONS- Inputs Input connections to the PL6.0 II can be made with XLR, TRS (1/4-inch), or terminal-block connectors. The XLR/TRS connectors are “combo” style; they accept either XLR or TRS type inputs. The terminal block connectors are three-pin “Euro-” (or “Phoenix-”) type. The accessory packet shipped w[...]

13 XLR CONNECTIONS- Inputs: XLR, TRS (1/4-inch), and T erminal-block Pinouts TRS (1/4-inch) T erminal-block Connectors phone plug (tip-sleeve) shield jumper from “–” to shield shield Balanced Unbalanced pin 2 pins 1 and 3 Jumper pin 2 pin 1 pin 3[...]

14 The DataPort is a QSC-specific connection used for interfacing amplifiers, amplifier monitor - ing devices and signal processors. It is typically used in larger -sized installations where amplifiers may be located far away from system operators. The DataPort interconnects provide audio inputs to the amplifiers and amplifier operating data (tempe[...]

15 CONNECTIONS- DataPort (QSControl users only) Use only QSC Audio DataPort Cables for DataPort connections available from QSC’ s T echnical Services Group.. If amplifier Power Status is to be con- trolled with remote network applications (QSControl), be sure to leave the amplifier’ s AC power switch in the ON position. Place amplifier in ST AN[...]

16 CONNECTIONS- Power Supply Control (Standby/Enable) Remotely Controlling the Amplifier’ s Power Status Power Supply Control 2-pin connector is located between the DataPort and CH2’ s Speakon. Using the Rear Panel Power Supply Control Connector Included with the PL6.0 II is a 2-pin terminal block connector for the Power Supply Control. Using t[...]

17 CONNECTIONS- Outputs: Binding Posts Connecting the Outputs to the Speakers Use either the binding post or the Speakon™ output connections. Binding posts are covered on this page, Speakons on the following page. Note that the PL6.0 II does not support Bridge mode output from the Speakons (see page 11). There are two basic speaker connection con[...]

18 CONNECTIONS- Outputs: Speakon™ pinout Speakon Outputs The Speakon outputs are for use in Stereo and Parallel operating modes. Minimum speaker impedance when using Speakon connection is 4-ohms. 2-ohm load-connection to Speakon is not recommended; output power of this amplifier exceeds Speakon capability at 2-ohms. The Speakons are wired Pin 1+ [...]

19 USE- AC Power Switch and LED Indicators LED Indicators for Power Status On the left side of the front panel is the Power switch. The switch is labeled ON, above it and to the right. T o turn the power on: Press in on the upper portion of the rocker switch. The amplifier will go through its power -up cycle; the red-colored Protect LEDs will illum[...]

20 USE- Signal Level LED Indicators LED indicators. USE- Gain Controls Gain Controls A Gain control adjustment is provided for each channel. The voltage gain of the amplifier (in dB) is marked around each control. Rotating the control clockwise increases the gain of the amplifier . Rotating the control counter - clockwise reduces the gain of the am[...]

21 USE- Clip Limiters Clip Limiters The PL6.0 II has separate clip limiters for each channel which respond only to actual amplifier clipping. Amplifier clipping generates internal error signals which cause the Clip Limiter to quickly reduce gain and minimize the overdrive. T o preserve as much of the program dynamics as possible, limiting occurs on[...]

22 TROUBLESHOOTING The amplifier “cuts-out” when I really crank it up (intermittent operation)- • Make sure the AC power source is rated for the required current! Use only 10-gauge heavy-duty extension cords. • If the AC power source is “sagging” (or drooping) under heavy load, the circuit is overloaded or has other fundamental problems[...]

23 TROUBLESHOOTING I am trying to use QSC’ s DSP-3 or DSP-4 signal processor , but it doesn’ t power up when the amp is turned on. What’ s wrong?- • Nothing. The PL6.0 II does not supply the required power to the DSP-3 or DSP-4 module. • An accessory AC adaptor (wall wart) will be required for the DSP-3 or DSP-4. Contact QSC T echnical Se[...]

24 SPECIFICA TIONS- PowerLight 6.0 II Electrical Data Note: Specifications are subject to change without notice. Output Circuit Type quasi-complementary MOSFET output with multi-step high efficiency circuit Output Power in watts 20 Hz to 20 kHz 8 ohms per channel 1150 at 0.1% THD 4 ohms per channel 2050 at 0.1% THD 2 ohms per channel 3250 at 0.1% T[...]

25 APPENDIX- DataPort Pinout The DataPort connection is QSC-specific. Informa- tion is subject to change. SPECIFICA TIONS- PowerLight 6.0 II Electrical Data QSControl Control and Monitor Parameters on/standby, channel gain, mute, polarity, input level, output level, heat sink temperature, output load sense, clip detect, protect detect, operating Mo[...]

26 What is PowerWave? PowerW ave is QSC's patented power supply technology that not only makes power amplifiers more compact, but also better sounding. Y ou don’ t have to settle for conventional "lead sled" designs with hum, sagging supplies, and backbreakin g weight. PowerWave is a win-win solution, giving you heavyweight audio p[...]

27 Disclaimer QSC Audio Products, Inc. is not liable for any damage to speakers, or any other equipment that is caused by negligence or improper installation and/or use of this amplifier product. Product Warranty QSC Audio Products, Inc. (“QSC”) guarantees its products to be free from defective material and / or workmanship for a period o f thr[...]

28 QSC Audio Products, Inc. 1675 MacArthur Boulevard Costa Mesa, California 92626 USA “QSC” and the QSC logo are registered with the U.S. Patent and T rademark Office. ©2002 QSC Audio Products, Inc.[...]