Related Manuals for Navison audio SE-MKII
Summary of Contents for Navison audio SE-MKII
- Page 1 Navisonaudio T h e n a t u r a l s o u n d SE-MKII STEREO PREAMPLIFIER OWNER’S OPERATING MANUAL...
- Page 3 In closing, we'd like to welcome you to the family of Navison audio owners. We want you to enjoy your Navison audio product to the fullest. To this end, our staff stands ready to answer any questions you may have about the function and application of your SE-MKII, and to provide any needed service both during, and after the warranty period.
- Page 4 Units which have been modified, altered, or improperly repaired by anyone not specifically authorized by Navison audio design, Inc. c) Units not purchased from an authorized Navison audio dealer in the United States for use in the United States.
- Page 5 • 1-877-NAV-IZON or (628-4966) Service If your Navison audio component requires service, repack it using the original box and packing material and ship to the Service Department address above. Boxes and packing materials can be obtained from our service department for a nominal charge, if you no longer have yours.
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Page 6: Installation
Vertical installation is not recommended. All SE-MKII sold in the United States are configured for operation on a 60Hz ac power line producing between 100 and 120 volts. Export versions of the SE-MKII will have the correct operating voltage and frequency clearly marked on the back panel of the unit, near the ac power cord. -
Page 7: Electromagnetic Interference
Electromagnetic Interference Considerable care has been taken in the design of the SE-MKII 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 8 Connect to the input of your 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 SE-MKII inverts phase, it may be necessary to invert the speaker leads to maintain correct absolute phase. See the section on "Getting the most out of your SE-MKII"...
- Page 9 All control functions are disabled during the auto-muting cycle. The muting relay also grounds the outputs immediately at turn-off or in the event of any power line interruption. When the SE-MKII is turned off (by pressing the power switch again), the standby led (located in the display window) will be illuminated.
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Page 10: Remote Control
Remote Control All operations of the SE-MKII 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. Pressing it again will restore the last level setting. -
Page 11: Vacuum Tube Replacement
Vacuum Tube Replacement The SE-MKII circuit employs eight vacuum tubes (V1 – V8), all 6H1-EB tubes. The 6H1-EB offers low noise, low microphonics. The brands of tubes we supply have been chosen by first selecting those brands which are known to be most reliable, then by extensive auditioning of these acceptable brands with the final choices being made solely on the basis of sonic performance. -
Page 12: Absolute Phase
The SE-MKII is phase inverting. If your system has an odd number of inversions, (for example, if the SE-MKII is the only phase inverting unit in the chain) then you must add one phase inversion. This is conveniently done by reversing the positive and negative connections to your speakers (be sure to reverse both channels). - Page 13 Performance Tip Warm up the SE-MKII before listening: The sonic performance of the SE-MKII improves noticeably as the unit warms up. The midrange becomes more lucid, the highs smoother, and the soundstage expands. The warm up period can be expected to last about fifteen minutes.
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Page 14: Specifications
Specifications are subject to change without notice FUSES The SE-MKII 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. - Page 16 Thank you for selecting the NAVISON AUDIO products for your audio system. www.navisonaudio.com...