Hafler Iris Preamp Owners Manual

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It is a good habit to turn down BOTH remote and main panel volume controls upon system shut-down. This will avoid possible sudden and unexpected changes in volume when system is re-activated. TABLE OF CONTENTS Introduction .................................................................Page 1 installation .................................................................. Page 2 Operation .................................................................... Page 5 IRIS Block Diagram .................................................... Page 7 Using the IRIS Remote System Introduction ............................................................... Page 10 Operation ................................................................. Page 14 Specifications ........................................................... Page 16 Warranty ................................................................... Page 18 INTRODUCTION Your IRIS preamplifier combines superb, all-discrete, J-FET amplification stages with unique control methods allowing unprecedented flexibility and convenience. In this manual, beyond telling you how to use IRIS, we will try to convey the spirit and method of how this unusual combination was achieved. The J-FET devices share many technical and sonic charac- teristics with the best of vacuum triodes. They also allow things vacuum tubes don't easily allow, such as high speed and very low noise.

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INSTALLATION The gloss black insert on the face-plate of your new HaflerEquipment has been packaged with a removable protective coating. Please peel off this protective coating following in- stallation. When cleaning the face-plate, we advise a soft cotton cloth with a non-abrasive cleaner that is safe for lexan and painted surfaces. DO NOT use paper towels or any coarse material to clean the face-plate as these materials may scratch the insert. IRIS is shipped with styled end caps on its front panel. Rack- mounting ears are available from the factory for standard 19- wide racks. In locating IRIS, keep these factors in mind: 1) All preamplifiers with high-gain moving-coil phono circuitry can be susceptible to pickup of hum from strong external magnetic fields. Such fields are usually strongest from power amplifiers, but can also come from other equipment. When stacking or racking your equipment, you may have to do so as to minimize this potential problem. 2) The IR (infrared) eye for the IRIS remote system is behind the dark red screen above the Record 1 switch. The IRIS remote system combines a powerful transmitter and very sensitive receiver, resulting in highly reliable communication under conditions where many remotes will not work. However, best operation usually results if the preamplifier is located AT or ABOVE the height at which you will typically use the transmitter. 3) It is also desirable that the IR eye not have to look directly at extremely bright light sources, particularly those of fluores- cent nature. Such conditions can impede communication reli- ability. 2