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Manual V1.0 

OB1-300 

&

 

OB1-500 MANUAL 

INTRODUCTION 

THANK YOU FOR CHOOSING 
ORANGE 

Ever since the founding of the company in 1968, 

Orange

 has been a pioneering force in the guitar amplification 

industry. Today, with a team of the world’s finest amplifier engineers, Orange continues to push back the 

boundaries of conventional amplifier design. 

Our commitment to craftsmanship and quality control has allowed our amplifiers to stand the test of time, giving 

their owners as much pleasure now, as the day they were bought. To maintain this level of excellence, each 

Orange amplifier is put through many 

rigorous

 test procedures before leaving the factory. 

This manual contains 

valuable technical and safety information

. Please take the time to read this manual as 

the information may enhance the sound and performance of your amplifier. We are confident that you will be 

delighted with your new purchase and that it will provide you with many years of enjoyment. You are now a 

member of the 

Legendary British Guitar Amplifier Owners Club

 

In the interests of product improvement, the contents of this manual may be subject to 
change without notice. Ensure you are viewing the latest version at 
www.orangeamps.com 

SAFETY 

IMPORTANT SAFETY 
INFORMATION 

1) Read these instructions. 

2) Keep these instructions. 

3) Heed all warnings. 

4) Follow all instructions. 

5) Do not use this apparatus near water. 

6) Clean only with dry cloth. 

7) Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions. 

8) Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including 

amplifiers) that produce heat. 

9) Do not defeat the safety purpose of the polarised or grounding-type plug. A polarised plug has two blades 

with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide 

blade or the third prong are provided for your safety. If the provided plug does not fit into your outlet, consult an 

Summary of Contents for OB1-300

Page 1: ...purchase and that it will provide you with many years of enjoyment You are now a member of the Legendary British Guitar Amplifier Owners Club In the interests of product improvement the contents of th...

Page 2: ...un shielded two conductor cable for speaker use at all times during operation The exclamation point within an equilateral triangle and WARNING are intended to alert the user to the presence of importa...

Page 3: ...n one of the following configurations 1 x 8 Ohm cabinet Use either speaker output rear panel 2 x 8 Ohm cabinets Use both speaker outputs rear panel 1 x 4 Ohm cabinet Use either speaker output rear pan...

Page 4: ...Power LED will illuminate when the mains switch is set to ON Set the Volume control to zero minimum before switching on power to the amplifier...

Page 5: ...able to connect the footswitch Volume Adjusts the overall output volume level Treble Active and post Blend Adjusts the high end frequencies Increasing the Treble control produces brighter tones Higher...

Page 6: ...gs will add extra volume so you may adjust the master Volume to compensate if necessary With the Gain set to minimum the Blend control will have the least effect on the overall sound Gain Controls the...

Page 7: ...ty shielded instrument cable to connect your instrument to the Input jack socket Use the Active Passive switch to select the input level for active or passive pickups REAR PANEL FEATURES 1 2 3 4 5 6 1...

Page 8: ...lp cool the amplifier 4 Speaker Outputs Make sure the correct speaker load and power handling is connected at all times Refer to Before Using Your Amplifier Total minimum impedance 4 Ohms 5 Voltage Se...

Page 9: ...of any Orange product is subject to its being used for its intended purpose in suitable conditions As the manufacturer we reserve the right to refuse to warranty any Orange product which has been misu...

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