Manual V1.0

OR15 Manual

Panel Features

Volume

Adjusts the output volume level. At higher settings, the output stage will begin to breakup into natural overdrive. Experiment further with the Output switch to achieve the desired output level and response.

Note: with the Gain set to zero, no sound will be heard.

Treble

Adjusts the high-end frequencies. Turning clockwise produces brighter tones.

Middle

Adjusts the mid-range response . Turning clockwise produces ‘fatter’ tones. With higher Gain settings, turn the Middle control fully anti-clockwise for a ‘scooped’ modern tone.

Bass

Adjusts the low-end frequencies. Turning clockwise produces deeper tones.

Gain

Adjusts the Gain level. With 4 stages of gain available a wide range of tones are achievable, from mild overdrive through to very heavy distortion at higher settings. Lower Gain settings will produce cleaner tones and may require an increase in Volume to compensate.

Power

The jewel light will illuminate when the mains switch is set to ON. The Output switch should be set to STANDBY prior to performance. Refer to ‘Before Using Your Amplifier’.

Output

Selects between 15 Watts (full power), Standby and 7 Watts (half power) modes.

7 Watts produces a different response and greater levels of output valve distortion/breakup at lower volume levels.

Input

Use a quality shielded instrument cable to connect your instrument to the Input jack socket.

Speaker Outputs

Refer to ‘Before Using Your Amplifier‘ for full speaker cabinet options. If you are unsure, please contact your Orange dealer.

Return & Send

Effects Loop (Series)

Use the Send jack to connect to the input of external effects processors/pedals. Connect the output of external effects to the Return jack on the amplifier. Time based effects (e.g. delays and reverbs) are often best placed in the Effects Loop, whereas overdrive pedals, filters and wahs etc. are usually best placed between the guitar and the amp’s Input. Experiment with placement to achieve the desired sound.

HT Fuse

This fuse will blow in the event of output valve failure. Replace this fuse only with the exact type and rating as printed on the chassis.

Mains Input and Mains Fuse

Refer to ‘Before Using Your Amplifier‘. Connect the supplied IEC cable to the AC Mains Input. Ensure the Power switch is set to OFF before connecting the IEC cable. The mains fuse is located in the pull-out tray underneath the AC Mains Input. If the mains fuse blows, replace only with the exact rating for your region . If the mains fuse continues to blow contact your Orange dealer.

Voltage Selector Switch (side panel)

IMPORTANT!

Refer to ‘Before Using Your Amplifier‘.

Fuses & Valves

Fuses:

Mains fuse (230V): T500mA
Mains fuse (100/120V):T1A

HT fuse: F250mA

Valves:

Preamp and phase inverter: 3 x ECC83/12AX7
Effects loop: 1 x ECC81/12AX7
Poweramp: 2 x EL84