Inter-m CU-920H Operation Manual

All of the co-workers here at Inter-M are dedicated to providing excellent products with inherently good value, and we are delighted you have purchased one of our products. We sincerely trust this product will provide years of satisfactory service, but if anything is not to your complete satisfaction, we will endeavor to make things right. Welcome to Inter-M, and thank you for becoming part of our worldwide extended family! RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK. DO NOT REMOVE COVER (OR BACK). NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. WARNING To prevent fire or shock hazard, do not expose the unit to rain or moisture. *WARNING FOR YOUR PROTECTION PLEASE READ THE FOLLOWING-WATER AND MOISTURE: Unit should not be used near water(e.g. near a bathtub, washbowl, kitchen sink, laundry tub, in a wet basement, or near a swimming pool, etc). Care should be taken so than objects do not fall and liquids are not spilled into the enclosure through openings. *Do not install this equipment in a confined space such as a book case or similar unit. *This apparatus shall not be exposed to dripping or splashing and no objects filled with liquids, such vases, shall be placed on the apparatus. *This apparatus shall be connected to a mains socket outlet with a protective earthing connection. *It has heed to be easy to disconnect the device. To disconnect the device from power, separate AC input cable from inlet or unplug the AC Cord. CAUTION *These servicing instructions are for use by qualified service personnel only. To reduce the risk of electric shock, do not perform any servicing oth- er than that contained in the operating instructions unless you are qualified to do so. NOTE *This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. 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. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense. This symbol is intended to alert the user to the pres- ence of uninsulated “dangerous voltage” within the product’s enclosure that may be of sufficient magni- tude to constitute a risk of electric shock to persons. This symbol is intended to alert the user to the pres- ence of important operation and maintenance (servic- ing) instructions in the literature accompanying the appliance. Caution: To prevent electric shock do not use this (polarized) plug with an extension cord, receptacle or other outlet unless the blades can be fully inserted to prevent blade exposure. Attentions: Pour prévenir les chocs électriques ne pas utiliser cette fiche polarisée avec un prolongateur, une prise de courant on une autre sortie de courant, sauf si les lames peuvent étre insérées à fond sans en laisser aucune partie à décou- vert.

Features............................................................................................................................................3 Setup and Operation.....................................................................................................................3 Connecting your Speaker System................................................................................................4 Polar Pattern Diagram ..................................................................................................................6 Frequency Response ......................................................................................................................7 Matching Transformer ...................................................................................................................7 Specifications ..................................................................................................................................8 Service Procedures......................................................................................................................................9 Schematic.......................................................................................................................................9 Parts List .........................................................................................................................................9 Variations and Options .................................................................................................................9 Warranty .........................................................................................................................................9

few minutes to read this brief manual and familiarize yourself with the important information regarding product features, setup and operation. As with most electronic devices, we strongly recommend you retain the original packaging. In the unlikely event the product must be returned for servicing, the original packaging (or reasonable equivalent) is required. Installation Environment Never place this product in an environment which could alter its performance or reduce its service life. Such environments usually include high levels of heat, dust, moisture, and vibration. 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 grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet. 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 appa- ratus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over. 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. S3125A S3125A

These column speakers are designed for outdoor use. - DURABILITY Aluminum alloy construction and anti-rust coating for long life and durability. - HIGH EFFICIENCY FOR P.A Full range speaker unit and matching transformer are incorporated for high efficiency of P.A. - EASY INSTALLATION Installs easily with included bracket. - 2 WAY SYSTEM To assure absolute long-term reliability these model are used by tweeter of high quality. Setup and Operation Setup and Operation After unpacking your CU-920H/940H Outdoor Column Speaker, attach the speaker to a wall or other secure surface with the supplied mounting bracket. The illustration below shows the preferred method of securing the speaker. WARNING: under no circumstances should any loudspeaker be mounted or suspended in a public place unless the mounting method has been approved and certified by a qualified engineer. Failure to properly secure the system can result in damage to the unit or personal injury. Bracket B Wall Bolt Nut Screw HILTI Nail Bracket A SPEAKER

Connecting your Speaker System Always switch off the power to the amplifier before connecting speakers. Choosing the Correct Speaker Cable It is important to choose cabling designated for audio use and good quality connectors. Using guitar cable or zip cord(designed for lamps and other electrical use) or poor quality connectors will degrade your loud- speakers' audio performance. For distributed loudspeaker systems, we recommend stranded twisted pair speaker cable with and overall vinyl jacket (plenum rated when installed in required installations). Always use the appropriate gauge of speaker cable. For cable runs of less than 25 feet (7.5 meters), 18- gauge cable is adequate. For longer cables, we suggest 16-gauge stranded cable. Speaker Connection Procedures After removing approximately 10mm (1/4-inch) of insulation from the ends of the speaker cables, twist the strands tightly and when twist together with the distribution cable(s), using an appropriate cable connector. Make certain the wires do not protrude form the cable connector and touch any metal on the speaker chas- sis, or any other adjacent metal. Connect speaker wires to the appropriate terminals for your mode of operation, as shown in the illustration below. Maintaining Proper Polarity It is very important to wire your speakers consistently in order to maintain proper polarity. All quality cables are manufactured with clear markings to identify the different conductors - normally by color-coding, print- ed markings, or textured ribbing on the cable's jacket material. Failing to do so will cause your speakers to operate out of phase, resulting in significantly reduced low-frequency output from your system. Choosing the Correct Amplification When selecting an amplifier for use with your distributed speaker system, it is important to choose an amplifier that has sufficient power output. Choosing an amplifier that does not have adequate rated power may result in pushing the amp beyond its limits, producing distortion or “ clipping” of the signal. This can irritate the listener and may cause damage to the speaker. Choosing an amplifier that is over-powered can result in over-driving the speaker system. COM 250Ω 500Ω CU-940H COM 500Ω 1KΩ CU-920H

It is important to consider the overall speaker load (impedance) when connecting distributed speaker sys- tems to an amplifier. Some distributed loudspeakers are marked in load impedance; others show the wattage taps. Whatever the, case, it is easy to compute the total impedance (or wattage load) that is possi- ble for a given amplifier.

Polar Pattern Diagram 500Hz 1000Hz 2000Hz 4000Hz -35 -30 -25 -20 -15 -10 -5 0 5 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250 260 270 280 290 300 310 320 330 340 350 - CU-920H 500Hz 1000Hz 2000Hz 4000Hz -35 -30 -25 -20 -15 -10 -5 0 5 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250 260 270 280 290 300 310 320 330 340 350 - CU-940H

COLUMN SPEAKERS 7 CU-920H/940H Frequency Response Frequency Response Matching Transformer Matching Transformer cuMYRPh cuMYRPh cuMYTPh cuMYTPh 50 60 200 Hz 2k 20k 70 80 90 dB 100 50 60 200 20 Hz 2k 20k 70 80 90 dB 100 - CU-920H - CU-940H

SPL(1W/1m) 90dB 93dB Casing Aluminum Operating temperature -10。C ~ +40。C Weight (SET) 2.35kg/5.18lb 3.35kg/7.39lb Dimensions (SET) 104(W)X400(H)X86(D)mm/ 104(W)X580(H)X86(D)mm/ 4.1(W)X15.8(H)X3.4(D)in 4.1(W)X22.9(H)X3.4(D)in * Specifications and design are subject to change without notice. Specifications Specifications

provided in the troubleshooting portion of this manual may help with this process. Once it is certain that the problem is related to the product contact your warranty provider as described in the warranty section of this manual. Schematic A Schematic is available by contacting your warranty provider. Parts List A Parts List is available by contacting your warranty provider. Variations and Options Variations and Options Variations Products supplied through legitimate sources are compatible with local AC power requirements. Options No optional items are available for this product. Warranty Warranty Warranty terms and conditions vary by country and may not be the same for all products. Terms and conditions of warranty for a given product may be determined first by locating the appropriate country which the product was purchased in, then by locating the product type. To obtain specific warranty information and available service locations contact Inter-M directly or the authorized Inter-M Distributor for your specific country or region.