Known as bi-amping, bassists have been dragging two amps to gigs for years, to harness the respective features of both; adding harmonics and overdrive to their core bass tone to achieve incredible effects. The Orange OB1-300 Bass Head is the answer to the issue of carrying two lots of amps, providing all you want in one 300-watt, class A/B rack mountable unit.
The Orange OB1300 Bass Head achieves this bi-amp style set-up by splitting your instrument’s signal into two paths. One path is taken by the lower frequencies, which is left clean, to provide untainted clarity and warmth. The other path is taken by the upper frequencies, which can then be passed through two stages of distortion for increased harmonic content, controllable by the Gain control and Blend. The Blend control adjusts the mix to the satisfactory amount of cleanliness or dirtiness, and this can then be engaged via either the on-board controls or alternatively, by footswitch.
Although simple to control, the combination of the Gain and Blend controls actually offers up a massive range of tonality extending between subtle level boosts, extra girth, a fattening of chorus parts, or all-out filth! Whatever you dial in, however, you always retain that low end definition.
Full Scope EQ
Coming in after the Gain and Blend effects kick in, the Orange OB1-300 Bass Head’s three-band EQ offer full control over tonal dynamics, with +/-15dB of boost or cut to bass and middle frequencies and +/- 20dB to the trebles.
The Orange OB1-300 Bass Head is totally analogue and manages to retain an exceptional level of expressiveness and musicality even when being pushed to the limits. You also have good connectivity options with a balanced DI with ground lift and line level outputs. The whole unit fits in a 19-inch (2U) case, and although rack mountable amps are new to Orange the same rugged construction is evident, with its powder coated steel chassis and Orange’s usual ‘pics only’ control icons.
Manufacturer Orange Model OB1-300 Weight 9.5Kg Output Power 300 Watt, Class A/B Front Panel Instrument Input with Active/Passive Switch, Gain, Blend, Bass, Middle, Treble, Volume, Footswitch Input, Mains Switch Rear Panel Speaker Outputs (Speakon), 1/4″ Line Output, Balanced Output with Ground Lift Switch Dimensions 48.2 × 26.5 X 10cm (18.97 X 10.43 X 3.93″)
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