Become A Bass Head With The Orange OB1-500 Bass HeadThe 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.OB1-500 shares the same layout and 2U rack dimensions as the less powerful OB1-300, coupled to a full fat 500 Watt output section to move some serious air.'BI-AMP' INSPIRED DESIGNThe OB1 splits the input instrument signal into two separate paths. One side amplifies the clean signal, with all the clarity you would expect from Orange. The other adds stages of gain to the upper harmonics only, controllable via the amp's Gain knob. These two elements are combined using the amplifier's Blend control which adjusts the mix between clean and dirty. The Blend control can then be remotely engaged or defeated using the optional footswitch.The Gain and Blend's range allows for almost anything, from a subtle level boost to cut through the mix, added girth and presence at moderate settings to fatten up chorus passages, to fully saturated savagery at the extremes. However you dial it, the OB1 always maintains the critical low end definition, right the way up to the most offensive settings! Rack mountable (2u) 'bi-amp' inspired bass head with footswitchable gain & blend controls Active 3 band eq Balanced di & line level outputs SPECIFICATIONS 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 ohm: 1 x 8 ohm, 2 x 8 ohm, 1 x 4 ohm Output power: 500 watts, class a/b Finish options: white powder coated steel chassis (2u 19--" rack mountable) Manufacturer: Orange AmplificationModel: OB1-500SKU: I363176-0-WHXDWe are Chuck Levin's Washington Music CenterSince 1958, Chuck Levin’s Washington Music Center has been the trusted destination for musicians and audio professionals across Maryland, Virginia, and Washington, D.C. Family-owned and operated, our legendary music store delivers Everything in Music®—from instruments and recording gear to pro audio, rentals, and repair services.Our team of musicians and industry experts lives and breathes gear, helping you build the perfect setup for your next performance, studio session, or installation. As an authorized dealer for top brands, we also offer our award-winning CHUCKSCLUSIVE line—exclusive, limited-edition instruments and collaborations recognized with the NAMM Top 100 Dealer Innovation Award for redefining what a music retail experience can be.Chuck Levin’s isn’t just a store—it’s a community built by players, engineers, and creators who share a lifelong passion for sound. Stop by our legendary Wheaton, MD showroom or contact us anytime for expert advice, product questions, or the best possible deal on your next piece of gear.
