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General| Total Harmonic Distortion | 0.03% |
|---|---|
| Speaker Impedance | 4 or 8 Ohms |
| Rated Power Band | 20Hz to 20kHz |
| Headphone Output | Yes |
| Subwoofer Output | No |
| Type | Hybrid Integrated Amplifier |
| Signal to Noise Ratio | 93dB |
| Input Impedance | 20k ohms |
| Weight | 28 lbs (12.7 kg) |
| Phono Input | 1 |
| Power Output per Channel | 100 Watts into 8 Ohms 160 Watts into 4 Ohms |
Expresses gratitude and prompts recording of serial number and purchase date.
Provides contact details for technical assistance and customer service.
Instructions for removing and saving the warning sheet during unpacking.
Steps to remove protective covers for vacuum tubes.
Details on various connection types and their configurations for the MA252.
Overview of the MA252's design and sonic philosophy.
Highlights of the MA252's technical capabilities and audio enhancements.
Visual representations of the MA252's physical dimensions from multiple angles.
Instructions for proper ventilation and placement for optimal operation.
Details on power input, speaker outputs, and fuse holder.
Description of balanced, unbalanced, phono, ground, and data ports.
Linking components for automatic power control and remote operation.
Connecting audio sources and grounding the turntable.
Step-by-step guide for connecting speakers using bare wire or spade lugs.
Instructions for connecting speakers using banana plugs.
How to select sources, control volume, and mute audio using the remote.
Using trim, select/trim, and directional buttons for audio adjustments.
Explanation of the front panel's input control, display, headphone jack, and status LED.
Guide to entering and navigating the MA252's setup menu for customization.
Overview of default configurations and how to check the firmware version.
Customizing input names and enabling/disabling sources.
Procedure to enable or disable specific input sources.
Customizing input names for easier identification.
Detailed steps for renaming inputs via remote control.
Setting up the Data Port for controlling source components.
Activating alternative remote codes to avoid interference.
Options to disable the IR sensor and manage the auto-off power mode.
Steps to restore all adjustable settings to factory defaults.
Process for turning the unit on/off and the tube warmup sequence.
How to choose inputs and adjust the listening volume.
Overview and adjustment of trim settings like balance.
Adjusting input trim levels and tone controls (bass/treble).
Specific steps for adjusting bass and treble frequencies.
Fine-tuning treble and configuring the front panel display.
Using trim mode, muting audio, and connecting headphones.
Understanding the Power Guard circuitry's LED illumination.
How protection circuits activate during overheating or impedance mismatches.
Steps to reset the unit's microprocessors if controls fail.
Detailed technical data on power, distortion, and frequency response.
Information on power requirements, dimensions, weight, and shipping.
A list of all packing materials and their part numbers.
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