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Related Manuals for Johnson Acoustic 50R
Summary of Contents for Johnson Acoustic 50R
- Page 1 INSTRUCTION MANUAL Acoustic 50R MODEL: Vintage Series Acoustic Amplifi er...
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Page 2: Panel Functions
INTRODUCTION Thank you for choosing this Johnson amplifier. Please read this manual carefully and completely before operating your new amplifier. PANEL FUNCTIONS � � � � � � � � � �� �� �� �� �� ����� ���� ������ �����... - Page 3 NOTCH FILTER CONTROL Use this control to eliminate instrument feedback. If there is no feedback, leave the control at the ‘Zero” position (fully counter-clockwise.) If you do encounter feedback, rotate the control clockwise until the feedback is gone. NOTCH FILTER IN/OUT BUTTON This button engages and disengages the Notch Filter.
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Page 4: Suggested Settings
SUGGESTED SETTINGS Keyboard/Piano/Organ Acoustic Bass Acoustic Guitar Acoustic Rock Guitar Keyboard/Piano In In *PreShape In/Out Button... -
Page 5: Technical Specifications
TECHNICAL SPECIFICATIONS POWER SUPPLY 110/115VAC/50Hz~60Hz POWER OUTPUT: 35 watts RMS @ 8 ohms LOAD IMPEDANCE: 8 ohms INTERNAL SPEAKER: 8” Woofer & 2” Tweeter INPUT: 1/4” Mono Jack LINE OUT: 1/4” Mono Jack FOOTSWITCH: 1/4” Mono Jack DIMENSIONS: 16 1/2”(W) x 16”(H) x 91/ 4”(D) WEIGHT (approx.): 25.5 lbs. - Page 6 PRECAUTIONS POWER SOURCES This product should be operated only from the type of power source indicated on the marking label. If you are not sure of the type of power supply to your home, consult your product dealer or local power company. INSERTION WARNING Never place objects of any kind into this product as they may touch dangerous voltage points or short-out parts that...
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Page 7: Safety Precautions
SAFETY PRECAUTIONS WARNING CAUTION: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS AMPLIFIER TO RAIN OR MOISTURE. DANGEROUSLY HIGH VOLTAGE IS PRESENT INSIDE THE ENCLOSURE. DO NOT OPEN THE CABINET. REFER SERVICING TO QUALIFIED PERSONNEL ONLY. This symbol warns the user of danger- ous voltage levels localized within the enclosure. - Page 8 WARRANTY INFORMATION This amplifier is warranted, to the original Purchaser, to be free from defects in material and workmanship for a period of five (5) years from the original retail purchase. This warranty is valid in North America only. The manufacturer shall, at its option, either repair or replace the defective product if the product is returned to the original place of purchase.