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General| Series | Express |
|---|---|
| Type | Tube Amplifier |
| Channels | 2 |
| Preamp Tubes | 5x12AX7 |
| Reverb | Yes |
| EQ | 5-band graphic EQ |
| Footswitch | Reverb, EQ |
| Controls | Gain, Treble, Mid, Bass, Reverb, Master |
| Speaker | 1 x 12" |
| Inputs | 1 x 1/4" Instrument |
| Wattage | 25W (Express 5:25), 50W (Express 5:50) |
Essential safety guidelines for operating the amplifier, including water, heat, and ventilation warnings.
Welcome and overview of the MESA Express amplifier's design and sonic capabilities.
Detailed description of the four distinct sound modes available across the two channels.
Explanation of the Gain and Treble controls for adjusting sound characteristics.
Explanation of the Mid, Bass, and Reverb controls for shaping tone.
Description of master volume and EQ contour features.
Description of standby and power switching functions for amplifier operation.
Details on connecting external switchers and using the series effects loop for processing.
Information on Duo-Class power switching for different wattage and operating class modes.
Guidance on connecting speaker cabinets to the amplifier's output jacks.
Pre-configured amplifier settings for various tonal styles and playing techniques.
Blank templates for users to record and save their custom amplifier settings.
Guide to identifying and resolving common issues related to pre-amp and power tubes.
Explanation of amplifier bias and MESA's approach to fixed bias circuits.
Instructions on correctly matching speaker impedance and wiring methods (series, parallel).
Diagrams and explanations for combining speakers in series and parallel configurations.
Explains the fundamental principles of vacuum tube operation and their elements.
Diagrams showing tube functions and placement for specific Express amplifier models.
Labeled diagrams identifying all controls, jacks, and switches on the amplifier's panels.
Labeled diagrams identifying all controls, jacks, and switches on the amplifier's panels.
Space for user notes and miscellaneous information.
Manufacturer's contact information and address for support and inquiries.
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