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General| Power Output | 300 Watts |
|---|---|
| Controls | Volume, Bass, Mid, Treble, Presence |
| Tubes | 3 x 12AX7 |
| Impedance | 4 Ohms |
| Speaker Configuration | Head only (no speakers included) |
Details vacuum tube design, steel chassis, 300W power, dual channels, line out, footswitch, effects loop, and compressor.
Covers fire/shock hazards, servicing, ventilation, and grounding requirements.
Connect speaker enclosures to jacks and set the speaker impedance switch.
Connect footswitch and tuner to the amplifier's rear jacks.
Use effects loop SEND and RETURN jacks for external signal processing.
Use line out jacks for feeding signal to external power amps or mixers.
Set tone controls, volumes, and input levels for optimal performance.
Instructions on activating and adjusting the compressor and graphic EQ.
Using channel select and handling potential distortion issues.
Details INPUT, -6dB PAD, CH 1 VOLUME, CH 1 LED, CH 2 GAIN, CH 2 VOLUME.
Explains CH SELECT, CH 1/2 MIX LED, and CH 1/2 MIX knob.
Details LOW, HIGH, LOW BOOST, HIGH BOOST, MID NOTCH, GRAPHIC ON/OFF.
Explains the LINE OUT push button and its effect on signal output.
Details the 10-band graphic EQ and EQ Trim slider.
Explains LOW COMP, COMP ON/OFF, HIGH COMP, COMP LED, COMP EQ BAL, COMP GAIN TRIM.
Covers INPUT LEVEL LED, TUNER ONLY, MASTER VOLUME, POWER LED, STANDBY.
Details the power switch, line cord, and fuse for the amplifier.
SEND and RETURN jacks for connecting external processing devices.
Jack for chaining multiple 300T amplifiers together.
Connects the remote footswitch for controlling functions.
Switches for CH SELECT, GRAPHIC EQ, and COMP functions.
Transformer balanced line out and unbalanced tuner out jacks.
Switch to match speaker load impedance for proper operation.
Connections for main and additional speaker enclosures.
P. TUBE TROUBLE LEDs indicate tube failure or status.
Controls for setting output tube bias and balance.
Test points for measuring output tube bias and balance.
Step-by-step guide to adjusting bias and balance.
Guidance on tube life, replacement order, and types.
Steps to check if the amp is set up but not functioning.
Instructions for cleaning and maintaining the amplifier's exterior.
Details type, part number, and power requirements (voltage, wattage).
Input impedance, sensitivity, and tone control ranges.
Specifications for graphic equalizer, mid notch, low/high boost, crossover.
Input impedance, power output, sensitivity, and speaker compliment.
Physical dimensions and weight of the Sunn 300T amplifier.
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