U s e r ’ s G u i d e
P R X 5 1 2 M
P R X 5 1 5
P R X 5 3 5
P R X 5 2 5
P R X 5 1 8 S
2
CONTENTS
Important Safety Instructions | 4 |
Precautions | 5 |
The PRX500 Series Power Amplifier | 8 - 9 |
Introduction To The PRX500 Series | 10 |
System Specifications | 11 - 15 |
System Setup | 16 - 19 |
Setting Input Sensitivity | 20 |
Setting The Gain | 21 |
Application Examples | 22 - 25 |
Reference | 26 |
Cables and Connectors | 27 |
Troubleshooting | 28 - 29 |
Contact Information | 30 |
Warranty Information | 31 |
3
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.Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
9.Do not defeat the safety purpose of the polarized or
10.Protect the power cord from being walked on or pinched, particularly at plugs, convenience receptacles, and the point where they exit from the apparatus.
11.Only use attachments/accessories specified by the manufacturer.
12. Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from
13.Unplug this apparatus during lightning storms or when unused for long periods of time.
14.Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.
15.If Service Instruction in Owner's Manual: "CAUTION - THESE SERVICING INSTRUCTIONS ARE FOR USE BY QUALIFIED SERVICE PERSONNEL ONLY. TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT PERFORM ANY SERVICING OTHER THAN THAT CONTAINED IN THE OPERATING INSTRUCTIONS UNLESS YOU ARE QUALIFIED TO DO SO."
16.To completely disconnect this apparatus from the ac mains, disconnect the power supply cord plug from the ac receptacle.
17.“WARNING – TO REDUCE THE RISK OF FIRE OR ELECTRIC – SHOCK, DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOISTURE.”
18.Do not expose this equipment to dripping or dripping or splashing and ensure that no objects filled with liquids, such as vases, are placed on the equipment.
19.The mains plug of the power supply cord shall remain readily operable.
Care And Cleaning
PRX500 series systems may be cleaned with a dry cloth. Do not get moisture into any of the openings in the system. Ensure that the system is unplugged from the AC outlet before cleaning. In the event the DuraFlex finish is damaged a touch up kit can be obtained from JBL Professional (part number
THIS APPARATUS CONTAINS POTENTIALLY LETHAL VOLTAGES. TO PREVENT ELECTRIC SHOCK OR HAZARD, DO NOT REMOVE CHASSIS, INPUT MODULE OR AC INPUT COVERS. NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
4
PRECAUTIONS
The PRX500 series speakers covered by this manual are not intended for fixed installation and 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 speakers out of extended or intense direct sunlight. The driver suspension will
prematurely dry out and finished surfaces may be degraded by
on a slippery surface such as polished wood or linoleum, the speaker may move due to its acoustical energy output. Precautions should be taken to assure that the speaker does not fall off a stage or table on
which it is placed.
Stand Mounting Safety Precautions
Some PRX500 series models include a 36 mm receptacle cup to allow mounting on tripod stands or on a pole over subwoofers. When using stands or poles, be sure to observe the following precautions:
•Check the stand or pole specification to be certain the device is designed to support the weight of the speaker. Observe all safety precautions specified by the manufacturer.
•Always verify that the stand (or subwoofer/pole) is placed on a flat, level and stable surface and be sure to fully extend the legs of tripod type stands. Position the stand so that the legs do not present a trip hazard.
•Route cables so that performers, production crew, and audience will not trip and topple the speakers over.
•Inspect the stand (or pole and associated hardware)before each use and do not use equipment with worn, damaged or missing parts.
•Do not attempt to place more than one PRX500 series speaker on a stand or pole.
•Always be cautious in windy, outdoor conditions. It may be necessary to place additional weight (i.e. sandbags) on the base of the stand to improve stability. Avoid attaching banners or similar items to any part of a speaker system. Such attachments could act as a sail and topple the system.
•Unless you are confident that you can handle the weight of the speaker, ask another person to help you get it onto the tripod stand or pole.
Hearing Damage, Prolonged Exposure To Excessive SPL
PRX500 series loudspeakers are easily capable of generating sound pressure levels (SPL) sufficient to cause permanent hearing damage to performers, production crew and audience members. Caution should be taken to avoid prolonged exposure to SPL in excess of 90 dB.
5
WATCH FOR THESE SYMBOLS!
C A U T I O N | ! | WARNING - TO REDUCE THE | |
RISK OF ELECTRIC SHOCK | |||
RISK OF FIRE OR ELECTRIC SHOCK, | |||
DO NOT OPEN | DO NOT EXPOSE THIS EQUIPMENT | ||
| TO RAIN OR MOISTURE. |
RISQUE DE CHOC ELECTRIQUE
NE PAS OUVRIR
The lightning flash with arrowhead symbol within an equilateral triangle, is intended to alert the user to the presence of uninsulated." "Dangerous Voltage" within the products enclosure that may be of sufficient magnitude to consitute a risk of electric shock to persons.
The exclamation point within an
6
PRX500 Series speakers Declaration of Conformity
Safety And EMC Compliance Specifications
EN
EN
EN 55022:2003 Limits and Methods of Measurement of Radio Disturbance Characteristics of ITE: Radiated, Class B Limits; Conducted, Class A
EN
EN
EN
EN
EN
EN
UL 6500 2nd Edition 1999 Audio/Video and Musical Instruments Apparatus for Household, Commercial, and Similar General Use
CSA Compliance Notice
CSA Certification Applies to Amplifier Module Only
CSA Certified to operate only at 120V~ in Canada
FCC Compliance Notice
This device complies with part 15 of the FCC rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
CAUTION: Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.
NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. However there is no guarantee that the interference will not occur in a particular installation. If this equipment does cause harmful interference to radio and television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to collect the interference by one or more of the following measures.
•Reorient or relocate the receiving antenna.
•Increase the separation between the equipment and reliever.
•Connect the equipment into an outlet on a circuit different from that to which the reliever is connected.
•Consult the dealer or an experienced radio / TV technician for help.
7
The PRX500 Series power amplifier
AC Power Requirements
Standard PRX500 series speaker systems are equipped with a
A robust AC supply is necessary for maximum performance. If the supply is too weak the bass performance may be affected and if it sags (drops) too much the system may
CAUTION
In compliance with safety agency criteria and proper system operation, it is critical that the system installer observe all electrical safety practices at all times and provide proper earth grounding for all AC Power connections.
Powering Up
The main power switch is located on the input panel on the back of the enclosure. Always ensure that the speaker system is the last thing you power up, and the first thing to turn off when operating your complete PA system. If speaker systems are daisy chained together always turn off the last system in the chain first. Power “on” is indicated by the illumination of the logo on the front of the enclosure.
Changing Voltage
Your PRX500 series speaker will typically be set at the factory to accommodate the power mains voltage in your area. Before you set up your PRX500 series speaker for the first time it is a good idea to verify that the setting of the selector is appropriate for the power in your area. In the event that you do need to change the voltage:
•Make sure that the speaker is powered off and the AC is disconnected from the speaker.
•Directly above the male IEC connector on the speaker is a voltage selector. Just slide the switch to the appropriate setting.
•Set the voltage selector switch to the 115V for
•After having reconfirmed that the correct voltage is selected, reconnect the AC (IEC connector) and power the unit up.
DO NOT UNDER ANY CIRCUMSTANCES OPERATE THE UNIT WITH THE WRONG VOLTAGE SELECTED. DOING SO MAY RESULT IN SERIOUS DAMAGE TO YOUR SPEAKER SYSTEM WHICH WILL NOT BE COVERED BY WARRANTY.
CLASS 2 WIRING
Output Wiring
Class 2 output wiring.
8
Operating Temperature
The design of the Crown amplifier is such that it is very energy efficient and as a result does not get really hot. In the rare event that it does get too hot it will automatically shut down to protect itself. When its temperature has returned to within its operating range it will turn back on. A Condition under which this may occur is when the system is operated in very high ambient temperatures and the heat sink on the rear of the enclosure is in direct sunlight. Always ensure adequate cooling and appropriate shade.
9
Introduction to the PRX500 series
PRX512M | PRX518S | PRX515 | PRX525 | PRX535 |
Thank you for choosing the JBL PRX500 series
In addition to the high performance light weight Crown amplifier, PRX500 series utilizes the latest in JBL transducer technology. New 400 watt neodymium Differential Drive® transducers not only provide high sound pressure levels with minimum distortion and power compression, but they are also incredibly light. Combined together in highly engineered enclosures, PRX500 series speaker systems deliver the highest performance to weight ratio in the class – portable PA that’s actually portable.
All PRX500 systems are built road tough; covered with JBL’s DuraFlex™, one of the most durable finishes ever created for a speaker and protected by
Single Box On A Pole Coverage
The PRX512M features a dual angle pole socket this provides flexibility in aiming the speaker. As a guide line, the speaker should be positioned so that the audience cannot see the top or bottom panels of the speaker. The PRX515 and PRX535 also feature a pole mount of the ‘single’ socket variety. When using stands or poles, be sure to observe the precautions as stated in the “Precautions” section of the manual.
10
SYSTEM SPECIFICATIONS
PRX512M
System Type: | Self powered 12", |
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Frequency Range | 46Hz - 20kHz (EQ in main position) |
| 60Hz - 20kHz (EQ in monitor position) |
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Frequency Response (±3 dB): | 76Hz - 20kHz (EQ in main position) |
| 90Hz - 20kHz (EQ in monitor position) |
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Coverage Pattern: | 70º x 70º nominal |
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Directivity Index (DI): | 10.2 dB |
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Directivity Factor (Q): | 10.8 |
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Crossover Modes: | DSP controlled 48dB filter slope |
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Crossover Frequency: | 1.6kHz |
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System Power Rating: | 500 W continuous, 1000W peak |
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LF Power amp: | |
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HF Power amp: | |
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Distortion: | Less than 0.1% at rated power |
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Maximum Peak Output: | 133dB SPL1 |
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Signal indicators: | Overload: Red LED indicates input overload condition |
| Signal: Green LED indicates signal present |
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Input sensitivity: | Mic position: |
| Line position: +28 dBu to +10 dBu |
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Input Impedance: | 64 K Ohms (balanced), 32 K Ohms (unbalanced) |
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EQ: | Presets for use in Main and Monitor position |
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LF Driver: | 1 x JBL 262F 380 mm (12 in) Differential Drive® woofer |
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HF Driver: | 1 x JBL 2408H 37.5 mm (1.5 in) annular polymer diaphragm, |
| neodymium compression driver |
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Enclosure: | Trapezoidal, 18 mm, plywood |
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Suspension / Mounting: | Dual 36mm pole socket |
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Transport: | Integrated handle with backing cup |
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Finish: | Anthracite DuraFlex™ finish |
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Grille: | Powder coated, Anthracite, 18 gauge perforated steel |
| with acoustical transparent black foam backing. |
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Input Connectors: | Balanced XLR / 1/4 inch combo jack with XLR loop through, |
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Dimensions (H x W x D): | 650 mm x 380 mm x 350 mm |
| (25.5 in x 15 in x 14 in) |
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Net Weight: | 18 kg (40 lb.) |
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1Maximum Peak output measured with IEC pink noise at 1 meter in front of speaker baffle under free space conditions. Measurement instrument set to peak hold. Speaker muted and released at full power, recording maximum peak level.
11
PRX515
System Type: | Self powered 15", |
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Frequency Range | 45Hz - 20kHz (EQ in flat position) |
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Frequency Response (±3 dB): | 52Hz - 20kHz (EQ in flat position) |
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Coverage Pattern: | 70º x 70º nominal |
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Directivity Index (DI): | 10.3 dB |
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Directivity Factor (Q): | 10.8 |
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Crossover Modes: | DSP controlled 48dB filter slope |
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Crossover Frequency: | 1.6kHz |
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System Power Rating: | 500 W continuous, 1000W peak |
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LF Power amp: | |
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HF Power amp: | |
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Distortion: | Less than 0.1% at rated power |
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Maximum Peak Output: | 133dB SPL1 |
Signal indicators: | Overload: Red LED indicates input overload condition |
| Signal: Green LED indicates signal presents |
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Input sensitivity: | Mic position: |
| Line position: +28 dBu to +10 dBu |
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Input Impedance: | 64 K Ohms (balanced), 32 K Ohms (unbalanced) |
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EQ: | Presets for Main and Monitor position |
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LF Driver: | 1 x JBL 265F 380 mm (15 in) Differential Drive® woofer |
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HF Driver: | 1 x JBL 2408H 37.5 mm (1.5 in) annular polymer diaphragm, |
| neodymium compression driver |
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Enclosure: | Trapezoidal, 18 mm, plywood with polypropylene end caps |
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Suspension / Mounting: | Dual 36mm pole socket |
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Transport: | 2 x |
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Finish: | Anthracite DuraFlex™ finish |
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Grille: | Powder coated, Anthracite, 18 gauge perforated steel |
| with acoustical transparent black foam backing. |
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Input Connectors: | Balanced XLR / 1/4 inch combo jack with XLR loop through, |
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Dimensions (H x W x D): | 815 mm x 440 mm x 465 mm |
| (32 in x 17.25 in x 18.25 in) |
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Net Weight: | 26 kg (57 lb.) |
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1Maximum Peak output measured with IEC pink noise at 1 meter in front of speaker baffle under free space conditions. Measurement instrument set to peak hold. Speaker muted and released at full power, recording maximum peak level.
12
PRX525
System Type: | Self powered dual 15", |
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Frequency Range | 40Hz - 20kHz (EQ in flat position) |
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Frequency Response (±3 dB): | 52Hz - 20kHz (EQ in flat position) |
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Coverage Pattern: | 70º x 70º nominal |
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Directivity Index (DI): | 10.3 dB |
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Directivity Factor (Q): | 10.8 |
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Crossover Modes: | DSP controlled 48dB filter slope |
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Crossover Frequency: | 1.6kHz |
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System Power Rating | 650 W continuous, 1300W peak |
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LF Power amp: | |
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LF2 Power amp: | |
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HF Power amp: | |
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Distortion: | Less than 0.1% at rated power |
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Maximum Peak Output: | 135dB SPL1 |
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Signal indicators: | Overload: Red LED indicates input overload condition |
| Signal: Green LED indicates signal presents |
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Input sensitivity: | Mic position: |
| Line position: +28 dBu to +10 dBu |
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Input Impedance: | 64 K Ohms (balanced), 32 K Ohms (unbalanced) |
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EQ: | Presets for Flat or Boost |
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LF Driver: | 2 x JBL 265F 380 mm (15 in) Differential Drive® woofer |
HF Driver: | 1 x JBL 2408H 37.5 mm (1.5 in) annular polymer diaphragm, |
| neodymium compression driver |
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Enclosure: | Trapezoidal, 18 mm, plywood with polypropylene end caps |
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Transport: | 2 x |
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Finish: | Anthracite DuraFlex™ finish |
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Grille: | Powder coated, Anthracite, 18 gauge perforated steel |
| with acoustical transparent black foam backing |
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Input Connectors: | Balanced XLR / 1/4 inch combo jack with XLR loop through, |
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Dimensions (H x W x D): | 1300 mm x 440 mm x 465mm |
| (51 in x 17.25 in x 18.25 in) |
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Net Weight: | 38 kg (84 lb.) |
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1Maximum Peak output measured with IEC pink noise at 1 meter in front of speaker baffle under free space conditions. Measurement instrument set to peak hold. Speaker muted and released at full power, recording maximum peak level.
13
PRX535
System Type: | Self powered 15", |
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Frequency Range | 39Hz - 20kHz (EQ in flat position) |
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Frequency Response (±3 dB): | 46Hz - 20kHz (EQ in flat position) |
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Coverage Pattern: | 90º x 50º nominal |
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Directivity Index (DI): | 10.6 dB |
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Directivity Factor (Q): | 11.4 |
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Crossover Modes: | DSP controlled 24dB filter slope |
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Crossover Frequency: | 430 Hz, 2.6kHz |
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System Power Rating: | 650 W continuous, 1300W peak |
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LF Power amp: | |
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MF Power amp: | |
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HF Power amp: | |
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Distortion: | Less than 0.1% at rated power |
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Maximum Peak Output: | 134dB SPL peak1 |
Signal indicators: | Overload: Red LED indicates input overload condition |
| Signal: Green LED indicates signal presents |
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Input sensitivity: | Mic position: |
| Line position: +28 dBu to +10 dBu |
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Input Impedance: | 64 K Ohms (balanced), 32 K Ohms (unbalanced) |
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EQ: | Presets for Flat or Boost |
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LF Driver: | 1 x JBL 265F, 380 mm (15 in) Differential Drive® woofer |
MF Driver: | 1 x JBL 195H, 165 mm (6.5 in) woofer |
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HF Driver: | 1 x JBL 2414H 25 mm (1.0 in) annular polymer diaphragm, |
| neodymium HF compression driver |
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Enclosure: | Trapezoidal, 18 mm, plywood with polypropylene end caps |
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Suspension / Mounting: | 36 mm pole socket |
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Transport: | 2 x |
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Finish: | Anthracite DuraFlex™ finish |
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Grille: | Powder coated, Anthracite, 18 gauge perforated steel |
| with acoustical transparent black foam backing. |
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Input Connectors: | Balanced XLR / 1/4 inch combo jack with XLR loop through, |
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Dimensions (H x W x D): | 1070 mm x 440 mm x 465 mm |
| (42 in x 17.25 in x 18.25 in) |
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Net Weight: | 33.5 kg (74 lb.) |
| |
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1Maximum Peak output measured with IEC pink noise at 1 meter in front of speaker baffle under free space conditions. Measurement instrument set to peak hold. Speaker muted and released at full power, recording maximum peak level.
14
PRX518S
| System Type: | Self powered 18", |
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| Frequency Range | 37Hz - 140Hz |
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| Frequency Response (±3 dB): | 52Hz – 110Hz |
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| Crossover Modes: | DSP controlled 48dB filter slope |
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| Crossover Frequency: | 110Hz |
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| System Power Rating: | 500 W continuous, 1000W peak |
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| LF Power amp: |
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| Distortion: | Less than 0.1% at rated power |
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| Maximum SPL: | 129dB SPL peak1 |
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| Signal indicators: | Overload: Red LED indicates input overload condition |
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| Signal: Green LED indicates signal presents |
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| Input sensitivity: |
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| Input Impedance: | 34K Ohms (balanced), 18K Ohms (unbalanced) |
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| Polarity: | 0° or 180° phase shift |
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| LF Driver: | 1 x JBL 2044E 460 mm (18 in) woofer |
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| Enclosure: | Rectangular, 18 mm, plywood |
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| Suspension / Mounting: | 36mm pole socket on top |
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| Transport: | 2 x |
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| Finish: | Anthracite DuraFlex™ finish |
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| Grille: | Powder coated, Anthracite, 18 gauge perforated steel |
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| with acoustical transparent black foam backing. |
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| Input Connectors: | Balanced XLR 1/4 inch combo jack with XLR loop through. (stereo) |
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| Dimensions (H x W x D): | 725 mm x 535 mm x 610 mm |
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| (28.5 in x 21 in x 24 in) |
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| Net Weight: | 36 kg (79 lb.) |
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1Maximum Peak output measured with IEC pink noise at 1 meter in front of speaker baffle under free space conditions. Measurement instrument set to peak hold. Speaker muted and released at full power, recording maximum peak level.
15
SYSTEM SET UP - FULL RANGE MODELS
PRX500 Amplifier Input Configuration for
PRX512M, PRX515, PRX525 And PRX535
1 2 3 4 5
EQ INPUT
BOOST MIC 
B d
0 1
-
FLAT LINE
LEVEL
+4 dB 
PRX515
OVERLOAD
SIGNAL
l POWER
6
9
10
Features
|
| LINE SELECT |
IN |
| 7 |
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| JBL PROFESSIONAL |
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| Northridge, CA. USA | AC LINE INPUT |
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| 100V~ |
| Equipped with Differential Drive® | 50/60 Hz 5A 600W |
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| |
| Transducer Technology U.S. PATENT 5,748,760 |
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| Other U.S. and foreign patents pending | 8 |
| CSA Certification applies to | |
| Amplifier Module Only |
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| CSA Certificated to operate at 120V~ in Canada |
|
OUT
N 1 0 8
Designed, Engineered and Assembled in U.S.A.
T5AL250V
1 - EQ BOOST / FLAT: When set in the “FLAT” position, frequency response is linear and unaltered.When “Boost” is selected, internal equalization is applied to enhance low frequency and high frequency response. “FLAT” will provide greater accuracy of reproduced music, higher speech intelligibility and maximum overall level. “BOOST” is particularly useful at lower levels to enhance prerecorded music. The feature provides flexibility without the need to use an external equalizer. The chart
(at right) shows the effect of the “BOOST” setting.
MAIN/MONITOR (PRX512M ONLY): On the PRX512M: Switching between “MAIN” and “MONITOR” optimizes the system for use as either a main
16
2 - INPUT MIC / LINE: Allows the selection of different input sensitivities to permit the connection of many different sources, with or without the use of a mixer or external microphone preamplifier. See “Setting Input Sensitivity” on page 18.
3 - LEVEL: Sound level adjustment. With the input in the “MIC” position the level can be adjusted over a large range. In the “LINE” position most typical applications will require that the level control is set at 12 o’clock. (More details are outlined in “Setting the Input Sensitivity” and “Setting the Gain”).
6 - POWER SWITCH: Turns the power on. The illuminated logo in the front of the speaker serves also as a power “on” indicator.
7- LINE SELECT: Allows the user selection for different local voltage ratings.
8- AC LINE INPUT: Standard IEC AC mains input connector.
Indicators
4- SIGNAL: Signal indicator. The green LED illuminates when a signal is present.
5- LIMIT: Protection indicator. The red LED illuminates when the system overload protection is active.
Connectors
9- XLR: Female balanced XLR and 1/4 inch phone jack combo balanced input connector.
10
chained to another speaker.
17
SYSTEM SET UP - SUBWOOFER
PRX500 Amplifier Input Configuration for
PRX518S Subwoofer Model:
1 | 2 | 3 | 4 | 5 |
XOVER | POLARITY |
| PRX518S | ||
IN | 0 | OVERLOAD | |||
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| LEVEL |
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| SIGNAL |
| l POWER |
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OUT | 180 |
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| 6 |
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9 |
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| LINE SELECT |
| IN |
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| 7 | |
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| JBL PROFESSIONAL | |||
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| Northridge, CA. USA |
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| AC LINE INPUT |
| LEFT | RIGHT | CSA Certification applies to | 100V~ | |
| 50/60 Hz 5A 600W | ||||
| Amplifier Module Only | ||||
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| CSA Certificated to operate |
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| at 120V~ in Canada |
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10 |
| OUT |
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| 8 |
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| N 1 0 8 |
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| Designed, Engineered and Assembled in U.S.A. | T5AL250V | ||
11 12
Features
1 - XOVER IN / OUT: Pressing this button engages a
2 - POLARITY INVERT: Allows you to set the polarity of the subwoofer to either 0° (no change) or 180° (inverse polarity). The correct polarity setting will produce the best blend between the subwoofer and the fullrange speaker and the strongest perceived bass response at the listening position. This is especially useful when the subwoofer is placed at a different distance from the listening position than the fullrange speakers. If the bass response seems weak, try inverting the polarity.
18
3 - LEVEL: Sound level adjustment. The 12 o’clock position is a good starting point for most usages. Once the
6- POWER SWITCH: Turns the power on. Power “on” status is indicated with the illumination of the logo on the grille.
7- LINE SELECT: Allows the user selection for different local voltage ratings.
8- AC LINE INPUT: Standard IEC AC mains input connector.
Indicators
4- SIGNAL: Signal indicator. The green LED illuminates when a signal is present at the input connector.
5- OVERLOAD: The red LED illuminates when the system overload protection is active. If the input signal is too
strong or the “LEVEL” control set too high, the red LED will illuminate constantly. Illumination of the “OVERLOAD” LED can be avoided by reducing the input level or turning down the “LEVEL” control to the point at which the red LED occasionally flickers.
Connectors
9 & 11 - XLR: 1/4 inch phone jack balanced input connector. (see Reference section page 26 for information).
10 & 12 - XLR: Male balanced output connector. This connector provides a
Note 3: A single subwoofer can be used with a stereo source. The integral differential circuits sums the low frequency information from the left and right channel to a mono signal, ready for reproduction by the subwoofer.
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SETTING THE INPUT SENSITIVITY
PRX500 series systems have been designed to allow the connection of a variety of sources. This provides a great deal of versatility, especially with the PRX512M and PRX515, as a microphone or instrument can be connected directly to the input. Low levels output from consumer products like MP3 and CD players, can also be accommodated.
There are two user selectable gain or input sensitivity ranges: Mic and Line. For the majority of applications, the system will be receiving a signal from a mixer, equalizer of other professional grade product. In this case “Line” should be selected and the “LEVEL” adjusted to the 12 o’clock position indicated by the +4 dB region. The “LEVEL”control can then be trimmed to optimize the performance of the system (see Setting The Gain).
LINE
When a microphone, instrument or other consumer product is connected to the system, first ensure that the “LEVEL” control is at its minimum,
MIC
WARNING: SELECTING THE “MIC” POSITION WITH THE LEVEL CONTROL IN ANY POSITION OTHER THAN THE “OFF” POSITION MAY RESULT IN EXTREMELY HIGH SPLs.
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