For years bassists have been combining guitar and bass amps to remarkable effect, adding harmonics and layers of overdrive from a guitar amp to their core bass tone in pursuit of the ultimate live sound. This ‘bi-amp’ trend got us thinking… Why drag two amps to the show when you could take just one? The result is the OB1 Series of class A/B rack mountable bass heads which take care of this and much more besides.

The key to the OB1’s unique sound is our footswitchable Blend circuit which adds a veneer of controllable gain and increased harmonic content to the upper registers of the input signal. The lower frequencies and clean signal are left alone, staying warm and clear just as they would be in a ‘bi-amped’ setup. Depending on where the Gain and Blend controls are set, the possibilities are limitless. Punch in the Blend control to achieve anything from a transparent clean boost, to all-out filthy grind, and everywhere in between.

Other specifications include:

Rack mountable (2U) ‘bi-amp’ inspired bass head with footswitchable Gain & Blend controls, active 3 band EQ, balanced DI & line level outputs
Front Panel (Right to Left):    Instrument Input with Active/Passive Switch, Gain, Blend, Bass, Middle, Treble, Volume, Footswitch Input, Mains Switch
Rear Panel (Right to Left):    Speaker Outputs (Speakon), 1/4″ Line Output, Balanced Output with Ground Lift Switch
Speaker Output Options:    Minimum 4 Ohms: 1 x 8 Ohm, 2 x 8 Ohm, 1 x 4 Ohm
Output Power:    300 Watts, Class A/B
Finish Options:    White powder coated steel chassis (19″ 2U Rack mountable)
Unboxed Dimensions (W x H x D):    48.2 × 26.5 x 10cm (18.97 x 10.43 x 3.93″)
Unboxed Weight:    9.5kg (21lb)

For more information about the Orange OB1-300, please contact us.

Year Condition Case
Call Brand New None


Eddie's Guitars
Brett, Nathan, Matt, Pancho
(314) 781-7500
St. Louis, MO
5:22 AM

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