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General| Type | Stereo Tube Power Amplifier |
|---|---|
| Power Output | 50 Watts per channel |
| Channels | 2 |
| Rackmountable | Yes |
| Tubes | 4 x 12AX7 |
| Inputs | 2x 1/4" |
| Outputs | 2x Speaker Output |
| Impedance | 4, 8 Ohm |
| Dimensions | 19" |
Rear panel jacks for Channel A and B line-level signals from preamps or racks.
One 8-ohm and two 4-ohm speaker outputs per channel for connecting cabinets.
Controls AC power and tube warmup for extended tube life and surge prevention.
Individual channel controls for adjusting input signal sensitivity.
Provides a 15-watt mode for tube distortion at moderate output levels.
Boosts upper mid-range frequencies to help cut through loud mixes.
Details the MESA STR-420 6L6 GC power tubes, lifespan, and replacement.
Bias is permanently set and requires no adjustment after tube replacement.
Describes the 12AX7A driver tubes and recommends genuine MESA replacements.
Protected by a 3 amp Slo-Blo fuse; specifies replacement type.
Minimizes hum and buzz from ground loops in rack installations.
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