Creek obh 10 owners manual

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In the pack there is a separate mains adaptor, suitable for connecting to the mains voltage supply in the country of use. The socket at the end of the fixed cable should be firmly inserted into the connector on the OBH-10 rear panel marked DC inlet. Remember, do not overload the mains wall socket with too many plugs or adaptors. If in doubt, please contact your supplying dealer or a qualified electrician. The OBH-10 draws less than 2 Watts of power from the mains under all conditions so it can safely be left switched on without increasing your electricity bill significantly. INPUT AND OUTPUT CONNECTION The input and output connections are Phono (RCA) or Cinch type. These connections are suitable only for regular unbalanced signals (where the signal wire is normally shielded by an outer braid which is at ground potential). It can be connected to an integrated amplifier in the tape loop or between tape output and tape input (activated by selecting Tape monitor). It can also be fitted in the signal path between a pre- amplifier output and power amplifier input. The integrated amplifier or pre-amplifier's own volume control should then be pre-set to maximum to allow the OBH-10 to take full control of the volume. Alternatively, if the level is too high, set the amplifier's volume control to the maximum level you require and then only make level adjustments through the OBH-10's volume control. This will ensure a smoother range of adjustment. It is also possible to fit the OBH-10 between a source component, say a CD player output, and the amplifier's input, thereby remotely controlling only the source compo- nent's volume. VOLUME LEVEL The volume control, situated on the right hand side of the front panel, is used to alter the relative level of the sound output from the amplifier. It is important to realise that the volume control only acts to reduce, or attenuate, the incoming signal to the power amplifier stage. The maximum power of the amplifier is available only if the level of signal available from the line level equipment is sufficient to drive it to clipping; this will be different from one make to another. The volume control is therefore also used to balance the level from one piece of equipment to another. If it is found necessary to have the volume control set to a position which is considered to be high, before the desired level of volume is obtained, it does not necessarily mean that the amplifier is having to work hard or "flat-out". Consult your dealer if you feel you need more advice. Always have the volume control set at minimum (counter-clockwise ) when switching your amplifier on and off, to avoid thumps or sudden loud noises. LOCATING THE OBH-10 The OBH-10 does not need mains power to manually operate the volume. It does, however, need to be powered from its adaptor to operate the volume and mute func- tions via remote control. The OBH-10 will work best if placed on a suitable table or Hi-Fi equipment cabinet. Should it be necessary to place the OBH-10 on the top of other audio or video equipment, be careful to avoid obstruction of any ventilation slots that could cause overheating, or internal mains transformers that could induce hum pick-up. Do not obstruct the vision of the IR sensor on the front panel. OPERATING THE OBH-10 The OBH-10 has the ability to change the volume setting manually by moving the con- trol knob on the front of the unit or by pressing the appropriate buttons at the bottom of the Creek amplifier remote control handset. By pointing the remote handset at the OBH-10 and pressing the volume up or down buttons, the motorised potentiometer will move the control knob and flash the status indicator LED. Pressing the MUTE button on the handset will cause a relay to cut the signal from the OBH-10 and change the LED status indicator to red. To unmute press the mute button again or the volume up button (volume down will not unmute the signal). To unmute the OBH-10 without the handset, remove the power for 10 secs. You will notice that the remote handset has several other buttons relating to input selection. These buttons are redundant with the OBH-10. They are reserved for oper- ation with other Creek R.C. amplifier products. CAUTION Your OBH-10 amplifier is designed to give you years of reliable use. However, it is necessary to take care of your possession, so never overheat it or use a different power supply adaptor, unless it is one recommended by Creek Audio Ltd. The OBH-10 is designed to comply with the latest European EMC requirements. However, it should be noted that it is not possible to guarantee faultless operation of the equipment if it is used close to the source of high powered radio transmissions, such as can be found in mobile telephones or CB radio etc. Care should also be taken to place it away from the source of mains interference caused by mains trans- formers in other equipment. Electrical switching noises periodically conducted down the mains supply from domestic or industrial heating systems can sometimes be ampli- fied and present themselves as a click or thump through a hi-fi system. If you suspect that a fault has developed, do not remove the cover plate; there are no user serviceable parts inside. If you are unfortunate enough to need service work to be carried out on the OBH-10, it should be returned to your dealer for his expert help in the original packing material, if possible.