IMPORTANT SAFETY INSTRUCTIONS!

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2 IMPORTANT SAFETY INSTRUCTIONS! Please read the following very carefully before operating this unit Read ALL instructions carefully before using this unit. Keep these instructions for future reference. Heed all warnings and follow all instructions. Do not use this unit near water, in the rain, or where there is moisture. If this warning is ignored a serious electrical shock or death may occur. Do not attempt to service this unit. No user serviceable parts inside. Refer servicing to qualified, ISP approved service personnel. Servicing is required when the unit 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 unit, the unit has been exposed to rain or moisture, does not operate normally, or has been dropped. Do not block any ventilation openings on the unit. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus that produces heat. Do not defeat the grounding pin on the power plug. A grounding-type plug has two blades and a third grounding prong. If the provided plug does not fit into your outlet, please consult an electrician for replacement of the outlet, which may be obsolete. Take care to avoid Care should be taken to avoid spilling any foreign objects or liquid into this unit. Avoid expose of this equipment to dripping or splashing and ensure that no objects filled with liquids, such as vases, are placed on the equipment. Only use accessories or attachments that are specified by the manufacturer. Use only with the castor attachment, stand, connecting bracket, or table specified by the manufacturer, or sold as an accessory with the unit. When a castor attachment is used, use caution when moving the cart/apparatus combination to avoid injury from tipping over. To completely disconnect this unit from the AC Mains, disconnect the power supply cord plug from the AC receptacle. This active speaker system has an internal power amplifier module located on the side and a vent located on the back of the speaker for cooling of the internal amplifier. Care should be taken to avoid placing this active speaker in a location where the vent does not allow proper cooling of the internal amplifier. Avoid placing this system close to other heat sources. Do not block the rear vent with any other object. Make certain there is proper ventilation when is use. Do not drive the HIGH DEFINITION LINE 3112 into excessive heavy distortion for an extended period of time to avoid premature speaker failure. Failure to follow these instructions may void the warranty.

3 THIS UNIT CONTAINS POTENTIALLY LETHAL VOLTAGES. TO PREVENT ELECTRIC SHOCK OR HAZARD, DO NOT REMOVE THE POWER AMPLIFIER MODULE, INPUT PANEL OR AC INPUT PANEL. NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED ISP TECHNOLOGIES SERVICE PERSONNEL. The lightning bolt triangle is used to alert the user to the risk of electric shock. The exclamation point triangle is used to alert the user to important operating or maintenance instructions. Caution: Exposure to extremely high noise levels can cause permanent hearing loss. The HIGH DEFINITION LINE 3112 system is capable of producing in excess of 138db SPL at 1 meter. Continued exposure to noise levels in excess of 90db may cause permanent hearing loss. Below is a chart of the OSHA (Occupational Safety & Health Administration) regulations for Occupational Noise Exposure. Please note: OSHA requires hearing protection for any work environment when the sound levels exceed those shown in Table G-16 when measured on the A scale of a standard sound level meter at slow response.

4 INTRODUCTION Thank you for purchasing ISP Technologies HIGH DEFINITION LINE HDL3112 speaker system. The HDL 3112 is a high output three-way active speaker system designed to deliver HI-FI sound quality for medium and high SPL sound reinforcement applications. The HDL 3112 is a single element line array cabinet available in two maximum vertical coverage angles, either 8 degree or 15 degree, with adjustable splay angles. The driver complement is one 12-inch high efficiency neodymium woofer, one 3-inch voice coil neodymium midrange compression driver, and three 1.75-inch polyester diaphragm neodymium high frequency compression drivers. The HDL 3112 has three separate power amplifiers capable of producing upwards of 800 watts of RMS power, and an internal active analog crossover. The internal amplifiers are based on ISP Technologies patented D-CAT (Dynamic Current Amplifier Technology) amplifier. The D-CAT technology is capable of delivering high output current providing an improvement in transient response and a noticeable improvement in PUNCH. The D-CAT amplifiers provide improved reliability by including short circuit and over temperature protection. The built-in crossover is aligned so that a single box provides nominally flat response from 100 Hz to 17 KHz, when a signal is input to the full-range XLR input, and the rear panel switch is set to the Full Range position. An external high-pass filter is needed at 70 Hz or higher. This may be supplied by driving the box with the high-pass output from an ISP powered subwoofer, or an external processor. When using multiple boxes, an external processor or equalizer must be used to provide an array EQ function, which rolls off the lower frequencies and boosts the high frequencies. The amount of this spectral tilt is dependent upon the number of boxes used and the splay angles between them. Higher splay angles create more high frequency divergence, which requires more HF boost. For improved performance and controllability, an external processor can be used to provide a 3-way crossover for the box, feeding each band separately via the rear-panel ethercon connector. The rear panel switch must be set to the 'Three-way' input position, which also disables the level control knob. Feeding signal to the box this way allows the use of digital alignment delay on the woofer, which slightly improves the horizontal response. ISP can supply the purchaser with recommended processor settings for both the Full Range and 3-way uses. In the 3-way input use, there is still significant internal high-pass filtering occurring so that accidental swapping of signal lines at the ethercon fan-out should not damage the HF or MF drivers. LineCalc112 Software, which is an Excel spreadsheet, is available to aid in aiming the boxes and predicting SPL levels in a venue. The HDL 3112 cabinet is made of high quality 13 ply Baltic birch plywood with a durable spray on black splatter polyurea finish for long life. SUSPENDING LOUDSPEAKERS Important Notice!!! The information in this section has been gathered from engineering data and is for informational purposes only. None of the information in this section should be used without first obtaining competent advice with respect to applicability to a given

5 circumstance. None of the information presented herein is intended as a representation of warranty on the part of ISP Technologies. Anyone making use of this information assumes all liability arising from such use. All information presented in this manual is based upon materials and practices that are most common to The United States of America and may not directly apply to other countries because of differing material dimensions, specs, and/or local regulations. Users in outside countries should consult with appropriate engineering and regulatory authorities for specific guidelines. Correct use of all flyware is required for secure system suspension. Careful calculations should always be performed to ensure that all components are used within their working load limits before the cabinet suspended. Never exceed the maximum load ratings. Before hanging any speaker system, always inspect all components for cracks, deformations, corrosion, missing, loose or damaged parts that could reduce strength and safety of the cabinet. Do not suspend the cabinet until the proper corrective action has been taken. ATTACHMENT TO STRUCTURES A licensed professional engineer must approve the placement and method of attachment to the structure prior to the installation of any overhead object. The following performance standards should be provided to the professional engineer for design purposes; Uniform building code as applicable, Municipal Building code as applicable and Seismic Code as applicable. INSPECTION and MAINTENANCE Suspension systems are comprised of mechanical devices and, as such, they require regular inspection and routine maintenance to insure proper function ability. Any suspended ISP Technologies loudspeaker must be inspected for fatigue at least once per year. The inspection shall include a visual survey of all corners and load bearing surfaces for signs of cracking, water damage, de-lamination, or any other condition that may decrease the strength of the loudspeaker enclosure. Flyware that is provided with or for any ISP Technologies loudspeakers must be inspected for fatigue at least annually. The inspection shall include a visual survey of the material for signs of corrosion, bending, or any other condition that may decrease the strength of the fastener. ISP Technologies is not responsible for the application of its products for any purpose or the misuse of this information for any purpose. ISP is also not responsible for the abuse of its products caused by avoiding compliance with inspection and maintenance procedures.

6 REAR PANEL CONNECTION DIAGRAM The HDL 3112 rear connection panel provides both a single ETHERCON input connector, which includes all 3 input signals via a shielded CAT-5 connector and a single XLR Full Range input. The XLR Full Range input is processed internally to provide the correct crossover points for the HDL3112. A Full Range Level adjustment is provided to adjust the level of each individual HDL3112, note: this level control only works for the Full Range input. For even more accurate time alignment of the system, an external processer can be used to provide both the crossover points of the system and additional system equalization. Outputs signals are available for both ETHERCON 3-band signals if using the ETHERCON input or XLR Full Range output if the XLR input connector is used. Both the ETHERCON 3-Band input and the XLR Full Range input connectors include a ground float circuit to help avoid ground loops as a result of multiple cabinets connected in a system. A 3-Band meter is provided to indicate when a signal is present in each of the 3-Bands and when the input signal is at the point of clipping in each band. The input signal LED will light 21dB below the clip point and will indicate a remaining headroom of 21dB in that specific band. An external DSP Processor is required to provide the correct crossover and system equalization for the HDL 3112 system. The diagram to the right shows the 3-WAY ETHERCON Schematic for the input of the HDL 3112 Line Array cabinet. The HDL 3112 requires the use of shielded CAT-5 cable in order to provide a ground connection for the input circuit. An ETHERCON input breakout cable is available from ISP Technologies allowing for separate XLR input connections for each of the 3-Band input signals Low, Mid and High. If you make a custom input cable you must follow the connection diagram shown to ensure that the proper input signal is applied to the correct band of the HDL 3112.

7 The rear panel of the HDL 3112 also has the AC power connections allowing connection to AC power with a Neutrik PowerCon inlet connector. Under the Power input is a Neutrik PowerCon outlet connector, which allows connection to one additional cabinet. It is not recommended to connect more than one additional cabinet to this PowerCon outlet to reduce the possibility of overloading a single AC power circuit and also to avoid excessive current required from a single AC PowerCon inlet. This panel also includes a panel mount AC protection fuse. KNOW THE RULES OF SAFE RIGGING The system is designed to facilitate the suspension of the HDL 3112 by a qualified person familiar with rigging hardware and industry practices. Improper installation may result in damage, injury, or death! The HDL 3112 can only be rigged using the ISP Technologies HDL 3112 lightweight ARRAY FRAME shown to the right. The HDL 3112 ARRAY FRAME can be used for both flying applications and for ground stack setups. When flown, only use 5/8 shackles to attach to the steel links on the frame.

8 In a flown configuration the cabinet angles are set by sliding the link from the top cabinet down into the slot of the rear hinge on the next cabinet and inserting the quick release pin in the proper hole selection for the desired splay angle. In a ground stack configuration, simply select the desired splay angle and pin the link into the proper hole. You then insert the additional quick release pin into the ground stack hole in order to obtain the desired splay angle. THERMAL CONDITIONS The ISP HIGH DEFINITION LINE 3112 Series is capable of producing in excess of 800 watts at full power. This generates heat that must be dissipated in order to maintain reliability and insure the amplifier components stay within their operating temperature specs. To accomplish this, the amplifier is mounted on a heatsink that is internal to the cabinet. Airflow is drawn in from the front and is forced through a port on the rear near the internal heatsink. In addition, the amplifiers are thermally protected internally via a thermal switch, which will attenuate the signal 40dB if the heatsink temperature exceeds a safe operating temperature. When the temperature drops below a critical point, full signal will be restored. This also protects the system if the internal fan should fail. Tests have shown under extreme conditions that cycling will occur approx. (40 sec. ON, 20 sec. OFF) It should also be noted that a separate internal thermal breaker also protects the power transformer. If the power transformer temperature reaches a critical point, the transformer internal thermal breaker will open. If this condition occurs, simply reduce the signal level of the system. This will only occur if the HIGH DEFINITION LINE 3112 is continually pushed into excessive heavy distortion.

9 SPECIFICATIONS (per box) Configuration: LF Drivers: MF Drivers: 3-way 1 x 12 inch, very high sensitivity, neo magnet, reflex loaded. 1 x 3 inch compression, neo magnet, horn loaded HF Drivers: 3 x 1.75 inch compression, neo magnet, horn loaded, poly diaphragms Coverage: Splay Angles: Frequency Resp: Construction: Dimensions: Weight: Amplifier: Power Required: Crossover: Rigging: HDL : 8V x 110H HDL : 15V x 110H HDL : 1 to 8 degrees in 1 steps HDL : 10 to 15 degrees in 1 steps 68 Hz (4 boxes) to 17 KHz Baltic Birch Plywood W x 14.1 H x 20.6 D 85 lbs. 800 W RMS, 3 channels, high current D-CAT, fan cooled 5 Amps x 120 VAC Outboard digital processor required which is capable of 3-way crossover (4-way with subs) 16 7:1 Safety Factor, Aluminum Alloy NOTE: This Product may be covered under one or more of the following patents or patents pending: 7,532,730; 7,035,413; 6,944,305; 6,931,134; 6,831,514; 6,091,013.

10 WARRANTY AND SERVICE The Internal Circuitry is fully guaranteed to be free of defects under normal use and service for a period of three years from the date of purchase. The Speakers and Cabinet that are used in this product are fully guaranteed to be free of defects under normal use and service for a period of three years. Any damage resulting from the misuse or the failure to follow the precautions and instructions will void the warranty. In the event that the unit needs to be repaired, please return the unit to ISP Technologies directly. Simply repack the unit, send a copy of the original receipt, a note stating the problem, and send it to: ISP Technologies, LLC 5479 Perry Drive Suite B Waterford, MI Attn: Repair Dept. All shipping charges must be fully prepaid. ISP will not be responsible for any damages incurred in shipping of any unit. Any claim will need to be settled with the shipping company. The warranty will be voided if the serial number has been tampered with in anyway. The warranty card must also be filled out and returned in order to activate the warranty. Should you have any questions for the repair department prior to returning the product please call (248) NOTE: If it is determined that the power amp module has failed, it is possible for an ISP certified service center to remove the module from the cabinet by removing the mounting screws and disconnecting the speaker terminals and the transformer. The module may be sent back to ISP separately. Please contact ISP for technical support to help determine if the amplifier module may be defective. ISP TECHNOLOGIES, LLC 5479 Perry Drive Suite B Waterford, MI FAX: