User manual KLEIN-HUMMEL O110

[. . . ] Even in an unplugged state, a fully charged capacitor in the unit can zap the unsuspecting. · Loudspeaker output jacks labeled with the IEC 417/5036 emblem (Fig. A, right) may be carrying dangerously high voltages. If your unit has this emblem, ensure that any connections to be made between these jacks and the speakers themselves are made before powering up the unit, and are done so only with manufacturer-approved interconnecting cables. [. . . ] · If you bring this product from a cold environment into a warm one (such as from a vehicle into a studio), it is quite possible that condensation will form inside the cabinet. Please allow the unit sufficient time for acclimatisation to room temperature (minimum thirty minutes) before connecting and powering up. · To avoid accidents, do not use any accessory equipment with this product which is not approved by the manufacturer, particularly mounting accessories. Do not place this unit on any unstable platform, cart, stand or table. Should the unit fall, it can cause bodily injury to persons, or can be damaged itself. · To protect this product from lightning damage during a thunderstorm or from power surges during an extended absence, disconnect the power cable from the wall outlet. Page 2 Active Studio Monitor O 110 Active Studio Monitor KLEIN + HUMMEL O 110 Installation - Operation Figure 1: Front view of the O 110 Figure 2: Rear panel of the O 110 Table of Contents: Safety Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Table of Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1. Installation and Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1. 1 Operating Conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1. 2 Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1. 3 Connection to Mains Current. . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1. 4 POWER Switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1. 5 Level / Room Compensation / Ground Lift. . . . . . . . 4 1. 5. 1 Input Level Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1. 5. 2 Equalization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1. 5. 3 Ground Lift. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1. 6 Mains Power Fuse. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1. 7 Display Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1. 7. 1 Overload Protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1. 8 Care of the Cabinet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2. Diagrams. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3. Warranty Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 4. Technical Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Active Studio Monitor O 110 Page 3 1. Installation and Operation It is absolutely essential that you read and observe the Safety Instructions on page 2 before connecting or using this device. 1. 3 Connection to Mains Current The amplifier electronics within the O 110 are set up for an AC line voltage of 230 volts, 50 or 60 cycles per second. For export, special versions with other AC voltages are also available. If it becomes necessary to use a different mainscable plug, pay attention to proper grounding when wiring a replacement plug. 1. 1 Operating Conditions The K+H model O 110 active studio monitor is intended for use over a range of ambient temperatures from +10° C to +40° C (+50° F to +104° F). During transpor t or storage, temperatures from -25° C to +70° C (-13° F to 158° F) are permissible. 1. 4 POWER Switch When you switch power on, there is a 7 second delay before the amplified signal is sent to the loudspeakers. This delay avoids the loud popping sounds that otherwise are generated by prior devices in the signal chain as they are switched on. You will find this arrangement particularly useful if your studio uses a master switch to power up all the equipment at once. When power on the O 110 is turned off, on the other hand, or if there is a general power failure in the area, the signal flow to the speaker is immediately stopped, preventing any loud pops. 1. 2 Installation The loudspeaker chassis used in the O 110 are magnetically shielded, allowing these loudspeakers to be mounted side by side with a video or computer monitor without adversely affecting the screen. One of the finer features of the O 110 active studio monitor is its unusually uniform off - axis directivity, which results in a very wide "sweet spot". Preferred placement of the cabinet is in the upright position, for the dispersion in the verical plane was intentionally kept narrower than in the horizontal. In certain cases, for example if there are hard, reflective surfaces both to the left and right of the loudspeakers, it would make sense to operate the loudspeakers on their side. The reduced horizontal directivity in this position would then be helpful in minimizing any phase cancellation caused by comb - filter effects. When considering placement, please take into consideration the possibilities offered by both of the room compensation switches described in section 1. 5. 2. [. . . ] If you should ever need warranty service, put the unit in its original packing material and carton together with a detailed description of the problem, and ship it (freight prepaid) to our distributor or directly to: KLEIN + HUMMEL GmbH Customer service Zeppelinstrasse 12 73760 Ostfildern / Germany K+H warrants, that the product is free from any defects in both material and manufacturing and that it meets the specifications. A warranty case can only be acknowledged under condition that the complaint is filed to our distributor or to us in writing within 8 days after delivery or detection of the fault. Not covered under this warranty are damages due to inexpert packing and shipment, wear and tear, improper handling, installation, operation and maintenance. The limitation period for warranty claims is described in the terms and conditions of K+H GmbH. [. . . ]