Manualshelf

User Manual

ManualsBrandsOrange ManualsBassOB1-500 Bass Head - 500W RACK MOUNTED CLASS A / B BASS HEAD
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OB1 SERIES USER MANUAL
V1.0
INPUT
Use a quality shielded instrument cable to connect your instrument to the Input jack
socket. The Active/Passive switch selects the correct input level for basses with active or
passive pickups.
GAIN
Controls the level of gain added to the upper harmonics. The Gain control works in
tandem with the Blend control for a variety of sounds. Higher Gain settings produce
dirtier tones, whilst lower Gain settings combined with a higher Blend setting can be
used for a ‘clean’ boost to cut through the mix.
BLEND
Controls the amount of upper harmonics and gain blended with the clean signal. The
character of the blended signal is defined by how the Gain control is set. Higher
Blend settings will add extra volume, so you may adjust the Volume to compensate if
necessary. With the Gain set to minimum, the Blend control will have the least effect on
the overall sound.
BASS
Adjusts the low-end frequencies with +/-15dB of boost or cut. Increasing
the Bass control produces deeper tones. The EQ controls are located after the Blend
control for fine control over your overall sound.
MIDDLE
Adjusts the mid-range frequencies with +/- 15dB of boost or cut. The EQ controls are
located after the Blend control for fine control over your overall sound.
TREBLE
Adjusts the high-end frequencies with +/-20dB of boost or cut. Higher Gain and Blend
settings will also add high-end frequencies and harmonics. Reduce the Treble to
compensate if desired.
VOLUME
Adjusts the overall volume level.
FOOT
SWITCH
Connect a latching footswitch (e.g. Orange FS-1) to this jack socket to remotely
engage/defeat the Gain and Blend controls. Use a standard instrument/tip-sleeve
(mono) cable to connect the footswitch.
POWER
Switches mains power to the amplifier on/off. Connect the supplied IEC/Mains cable to
the AC Mains inlet (rear). The 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.
FRONT PANEL FEATURES
THE OB1-300 & OB1-500 SHARE THE SAME FRONT & REAR PANEL FEATURES