VRX_Powered_UsersGuid#C77E6.
VRX_Powered_UsersGuid#C77E6.
VRX_Powered_UsersGuid#C77E6.qxp 9/21/07 5:05 PM Page 3 CONTENTS Section 1. Safety Instructions JBL DrivePack® Declaration of Conformity 4 6 Section 2. Before You Begin 7 Section 3. Introduction to The VRX932LAP 8 Section 4. Introduction to The VRX918SP 10 Section 5. JBL DrivePack® Technology 12 VRX932LAP Input Panel 15 VRX918SP Input Panel 17 Amplitude Shading 19 Section 6. Deploying The System 21 Section 7. Suspension Safety Warnings! 23 Section 8.
VRX_Powered_UsersGuid#C77E6.qxp 9/21/07 5:05 PM Page 4 SECTION 1. SAFETY INSTRUCTIONS IMPORTANT SAFETY INSTRUCTIONS 1. Read these instructions. 2. Keep these instructions. 3. Heed all warnings. 4. Follow all instructions. 5. Do not use this apparatus near water. 6. Clean only with dry cloth. 7. Do not block any ventilation openings. Install in accordance with the manufacturer's instructions. 8.
VRX_Powered_UsersGuid#C77E6.qxp 9/21/07 5:05 PM Page 5 THIS APPARATUS CONTAINS POTENTIALLY LETHAL VOLTAGES. TO PREVENT ELECTRIC SHOCK OR HAZARD, DO NOT REMOVE DRIVEPACK CHASSIS, INPUT MODULE OR AC INPUT COVERS. NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. WATCH FOR THESE SYMBOLS The lightning bolt triangle is used to alert the user to the risk of electric shock.
VRX_Powered_UsersGuid#C77E6.
VRX_Powered_UsersGuid#C77E6.qxp 9/21/07 5:05 PM Page 7 SECTION 2 : BEFORE YOU BEGIN The VRX Series loudspeakers covered by this manual are not intended for fixed installation in outdoor or high moisture environments. Moisture can damage the speaker cone and surround and cause corrosion of electrical contacts and metal parts. Avoid exposing the speakers to direct moisture. Keep loudspeakers out of extended or intense direct sunlight.
VRX_Powered_UsersGuid#C77E6.qxp 9/21/07 5:05 PM Page 9 VRX932LAP - 12", POWERED TWO-WAY, LINE-ARRAY LOUDSPEAKER SYSTEM Frequency Range (-10 dB): 57 Hz - 20 kHz Frequency Response (±3 dB): 75 Hz - 20 kHz Coverage Pattern: 100º x 15º nominal Maximum Peak Output, SPL1 136 dB SPL at 1m LF Driver: 1 x JBL 2262FF 305 mm (12 in) dual voice coil Differential Drive® woofer with neodymium-magnet HF Driver: 3 x JBL 2408J, 34 mm (1.
VRX_Powered_UsersGuid#C77E6.
VRX_Powered_UsersGuid#C77E6.qxp 9/21/07 5:05 PM Page 12 SECTION 5 : JBL DRIVEPACK® TECHNOLOGY INTRODUCTION TO THE JBL DRIVEPACK® DPC-2 INTEGRATED AUDIO SYSTEM JBL DrivePack equipped loudspeakers are a family of fully integrated audio systems, coupling industry-leading loudspeaker technology to a combination of comprehensive digital signal processing and advanced amplifier technology, perfectly matched to the enclosures to deliver superb audio quality and powerful performance.
VRX_Powered_UsersGuid#C77E6.qxp 9/21/07 5:05 PM Page 13 AC POWER REQUIREMENTS JBL DrivePack DPC-2 systems are equipped with a DPC-2 multi-channel Dual-Bridged Technology™ power amplifier and loudspeaker specific DSP electronics. The system requires appropriate AC power.
VRX_Powered_UsersGuid#C77E6.qxp 9/21/07 5:05 PM Page 14 DPC-2 AC POWER RATINGS Description Quiescent Power Draw 1/8th Power, Pink Noise (UL/CSA) 1/3rd Power, Pink Noise Maximum Power Draw Inrush Current AC Power Module Connectors: 115VAC 230VAC 30W 30W 85W, 1.5A rms 85W, 1.5A rms 2A 1A 1440W 1440W Inrush current limiting via PTC soft-start 12A Max, 100-120VAC/220-240VAC, 50-60 Hz. Class 1 Wiring Inlet Connector Rating 5A 3A Outlet Connector Rating 7A 9A 16 AWG (1.
VRX932LAP INPUT PANEL The VRX932LAP input panel features analog audio inputs and sophisticated onboard digital signal processing technology. Precision Bandpass limiting, pre-equalization filters and automatic self-protection functions ensure maximum performance. JBL engineers have calibrated the DSP speaker management and limiter parameters to ensure smooth phase response and transfer function. CONTROLS 1.& 2.
VRX_Powered_UsersGuid#C77E6.qxp 9/21/07 5:05 PM Page 16 CONNECTORS 9. Audio In F-XLR Active 20K Ohm Balanced, 10K Ohm Unbalanced. Pin 2 Hot (Positive voltage produces outward cone motion of L.F. Transducers). 10. Audio Out M-XLR Passive Audio Pass-through. Pin 2 Hot (Positive voltage produces outward cone motion of L.F. Transducers). 11. AC LINE INPUT Blue Neutrik PowerCon® NAC3MPA A-type airtight twist-lock chassis connector for AC power inlet.
The VRX918SP input panel features analog audio inputs and sophisticated onboard digital signal processing technology. Precision Bandpass limiting and automatic self-protection functions ensure maximum performance. CONTROLS 1. AUDIO OUT Two-position push-button DSP preset selection switch, enables an 80Hz Hi-Pass filter (graph 1) or direct loop through (graph 2) to the audio output.
VRX_Powered_UsersGuid#C77E6.qxp 9/21/07 5:05 PM Page 18 INDICATORS 6. PEAK Red LED, detects excessive input signal. The LED illuminates when overload at any point is detected. 7. SIG Green LED, detects input signal, illuminates above the threshold set at -70 dBu. 8. POWER Blue LED - located near voltage select switch, illuminates when AC power is applied and unit is ready for operation. CONNECTORS 9. Audio In F-XLR Active 20K Ohm Balanced, 10K Ohm Unbalanced.
VRX_Powered_UsersGuid#C77E6.qxp 9/21/07 5:05 PM Page 19 AMPLITUDE SHADING AMPLITUDE SHADING Amplitude shading is a technique that allows the coverage pattern of a loudspeaker array to be shaped by adjusting the relative acoustic output of some of the devices in the array. Most often, array shading involves only the mid and high-frequency sections of the array.
VRX_Powered_UsersGuid#C77E6.qxp 9/21/07 5:05 PM Page 20 ARRAY CONFIGURATION SELECTOR (ACS) Below is an example of applying the ACS in a three-speaker array. In this particular configuration, the ACS on the top speaker is set at +3 dB, the middle speaker at 0 dB, and the bottom speaker -3 dB.
VRX_Powered_UsersGuid#C77E6.qxp 9/21/07 5:05 PM Page 21 SECTION 6: DEPLOYING THE SYSTEM The VRX932LAP/VRX918SP are flexible speaker systems that can be deployed in ground-supported or suspended applications. The following information will help you set up your VRX932LAP/VRX918SP system safely and effectively.
DUAL VRX932LAP Unlike most conventional speakers, the VRX932LAP is designed so that a pair of speakers may be safely mounted onto a pole or tripod stand. For most applications, the forward socket of the dual angle pole socket will be used. This will tilt the lower of the two speakers at a 15° down-angle (providing coverage of the near listeners) while the upper speaker will face straight out (covering the more distant areas).
VRX_Powered_UsersGuid#C77E6.qxp 9/21/07 5:05 PM Page 23 SECTION 7: SUSPENSION SAFETY WARNINGS! Correct use of all rigging hardware is required for secure system suspension. Careful calculations should always be performed to ensure that all components are used within their Maximum Load Limit before the array is suspended. Never exceed the maximum recommended load ratings. Prior to suspending the system, an expert, trained and experienced in flying speaker systems should be consulted.
VRX_Powered_UsersGuid#C77E6.qxp 9/21/07 5:05 PM Page 24 MAXIMUM ARRAY SIZE There are three variations of the VRX array frame. The VRX-AF supersedes the VRX932LA-AF. The VRX-SMAF is solely intended for use with the VRX928LA and VRX915S. Before suspending a VRX array, determine which version of the array frame you have and consult the table below to determine the maximum number of speakers that may be safely suspended. The subwoofers must always be at the top of the array.
GROUND-STACKED, UPWARD FIRING ARRAYS Applications such as covering stadium bleachers from the playing field may be addressed by installing the array frames to the bottom of the array. Up to four VRX932LAP loudspeakers may be locked together and ground stacked using the VRX array frame kit, as shown. WARNING: Do not ground stack more than four VRX932LAP loudspeakers in one array.
VRX_Powered_UsersGuid#C77E6.qxp 9/21/07 5:05 PM Page 26 SECTION 8 : INTRODUCTION TO THE VRX-AF The VRX-AF is an array frame designed to be used for suspension of the VRX932LAPand VRX918SP loudspeaker systems.
VRX_Powered_UsersGuid#C77E6.qxp 9/21/07 5:05 PM Page 27 JBL WARRANTY AND INFORMATION The JBL Warranty on professional loudspeaker products (except for enclosures) remains in effect for five years from the date of the first consumer purchase. JBL amplifiers are warranted for three years from the date of original purchase. Enclosures and all other JBL products are warranted for two years from the date of original purchase.
VRX_Powered_UsersGuid#C77E6.qxp Part Number: 364536-001 9/21/07 5:05 PM 09/2007 Page 28 JBL Professional 8500 Balboa Blvd.
