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General| Brand | Mark Levinson |
|---|---|
| Model | N28 |
| Category | Amplifier |
| Language | English |
Describes CAUTION and WARNING statements regarding electrical hazards.
Explains the meaning of the lightning flash and exclamation point symbols.
Lists 14 essential safety instructions for operating the preamplifier.
Selects one of the seven audio inputs for the preamplifier.
Manages tape outputs and selects between program source or tape monitor.
Selects between Tape 1 and Tape 2 inputs when Record Selector is in MONITOR position.
Adjusts the volume at the main outputs of the preamplifier.
Details the various input connectors on the rear panel.
Details the various output connectors on the rear panel.
Instructions for unpacking the preamplifier and keeping packing materials.
Advice on positioning the unit for optimal performance and minimizing hum.
Specifies clearance needed for heat dissipation.
Instructions to verify the correct AC operating voltage setting on the PLS-228.
Advises consulting a dealer for changing the unit's AC operating voltage.
Notes on powering the unit from a 15-ampere AC mains line.
Details RCA and XLR connectors and recommends specific interconnect cables.
How to adjust line amplifier gain using internal switches in 6dB steps.
Adjustable gain settings for high-gain and low-gain phono options.
Details internal switches for adjusting cartridge loading impedance for phono options.
Explains accommodating different load resistances via optional terminals.
Illustrates connecting load components to optional terminals.
Adjusting input capacitance for optimal cartridge performance.
Step-by-step guide to opening the unit and adjusting switches.
Instructions for connecting the DC cable and AC power cord.
Diagram showing correct AC power cord connections.
Steps for powering up the preamplifier and associated equipment.
Recommendation for keeping the unit powered on at all times.
Recommended methods for cleaning the unit's cabinet.
Lists power consumption, mains voltage, dimensions, and weight.
Details gain, input impedance, and output recommendations for the phono section.
Details gain, input impedance, and output recommendations for the line section.
Provides contact details for Madrigal Audio Laboratories.
Diagram showing the top view dimensions of the Nº28 preamplifier.
Diagram showing the side view dimensions of the Nº28 preamplifier.
Diagram showing the top view dimensions of the PLS-228 power supply.
Diagram showing the side view dimensions of the PLS-228 power supply.
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