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Related Manuals for Conrad-Johnson 16LS
Summary of Contents for Conrad-Johnson 16LS
- Page 2 Premier 16LS. Note that this unit is phase inverting. See the section entitled “Getting The Most From Your Premier 16LS” for details on correct hookup in your system. In closing, we’d like to welcome you to the family of conrad-johnson owners.
- Page 3 United States for the lesser period of three years from the date of purchase by the original purchaser, or five years from the date of shipment to the authorized conrad-johnson dealer. During the warranty period, conrad-johnson will repair defective units without charge for labor or parts (with the exception of v acuum tubes and batteries).
- Page 4 Service Department conrad-johnson design, inc. 2733 Merrilee Drive Fairfax, VA 22031 The conrad-johnson service department can also be reached by e -mail at custserv@conradjohnson.com, by phone at 703-698-8581, or by fax at 703-560-5360 Service If your conrad-johnson audio component requires service, repack it using the original box and packing material and ship to the Service Department address above.
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Page 5: Installation
Installation The first step in preparing your Premier 16LS preamplifier for use is to install the vacuum-tubes. To do this, remove the tube guard by releasing the two captive screws attaching the guard to the chassis. The Premier 16LS uses six type 6922 tubes. After checking the pin orientation, insert one tube in each tube socket. - Page 6 Electromagnetic Interference (EMI) Considerable care has been taken in the design of the Premier 16LS to minimize it’s susceptibility to radio frequency interference and other forms of EMI. Choice of materials, physical layout, grounding practice, and power supply design have all been specified with a view to reducing the impact of electromagnetic fields on the performance of this unit.
- Page 7 OUTPUT: Connect to the input of y our amplifier (or crossover in a bi- amplified system). We recommend the use of an amplifier with an input impedance of 20k ohms or higher. Since the Premier 16LS inverts phase, it may be necessary to invert the speaker leads to maintain correct absolute phase.
- Page 8 When first connected to ac mains, or after an interruption of power, the Premier 16LS will turn on in a default mode (after auto-muting), with the level set at 20, and the CD input selected. In subsequent sessions, as long as the ac mains has not suffered a power outage, the unit will turn on at the last used volume setting and input.
- Page 9 Remote Control All operations of the Premier 16LS can be controlled by the handheld wireless remote unit. MUTE: Pressing the mute button will cause the main outputs to mute and the level display to be zero.
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Page 10: Vacuum Tube Replacement
Vacuum Tube Replacement The Premier 16LS circuit employs six vacuum tubes (V1 - V6), all 6922s. The 6922 offers low noise, low microphonics, and gain well suited to use in a zero-feedback line-stage. The brands of tubes we supply have been... - Page 11 This will be the case if the number of phase inversions is even (or zero). The Premier 16LS is phase inverting. If your system has an odd number of inversions, (for example, if the Premier 16LS is the only phase inverting unit in the chain) then you must add one phase inversion.
- Page 12 The warm up period can be expected to last about fifteen minutes. Questions: If you have questions about the installation or function of your Premier 16LS do not hesitate to call Customer Service at (703) 698- 8581. Premier 16LS Owner’s Manual...
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Page 13: Specifications
Net Weight: 25 lbs total. Fuses The Premier 16LS has two power transformers (one for the tube circuitry, one for the control circuits), each of which is protected by a fuse. A failure of either of these fuses is a symptom of a more serious problem, and a competent service technician should be consulted.
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