Orange OB1-500 500-watt Class A/B Rackmountable Bass Head

Bi-amped Bass Sounds with a Single Amp

This article was Written By

Our Product Research Team

Get to know them!

Add a massive sound to your bass rig with the Orange OB1-500 bass amplifier head. Orange took the popular bi-amp system, using both bass and guitar amps for a wide range of tone and cool overdrive tones, and shoehorned it into a single 2U, rackmountable unit. The OB1-500 sports a 3-band Baxandall EQ so you can dial in the perfect low-end tone. Gain and blend controls let you add overdrive to your sound and mix it with your original signal. Create a monstrous wall of bass tone with the Orange OB1-500 bass amplifier head.

Related Videos: OB1-500 500-watt Class A/B Rackmountable Bass Head

• Bi-amped flexibility in a single channel amp
• Create the perfect mix of clean and dirty
• Ready for stage and studio

Bass players have been using bass amps and guitar amps together to create huge sounds for years. The bass amp keeps the lows fat and clean while the guitar amp adds grit and extra harmonic content to the top of the signal. The bi-amp rig is cool, but can be a pain to haul and set up at the gig. The Orange OB1-500 gives you all the sound and flexibility of this rig in a single unit. The all-analog signal path of the OB1-500 starts by sending your bass signal down two separate paths. One goes to a powerful 3-band Baxandall EQ for detailed tone sculpting and the other goes to a blendable gain circuit.

The Orange OB1-500's gain circuit adds up to two distortion stages to only the upper harmonics of your sound. A built-in blend control lets you combine the gain and clean signals together to create a huge sound. No matter how much of the gain signal you add in, the low end will remain fat, bold, and undistorted. The Orange OB1-500 bass amplifier head is a bass player's dream come true.

This rackmountable bass amplifier head is ready for both stage and studio. The OB1-500 boasts a line-out and a balanced DI out - a favorite among Sweetwater's bass players - for hooking up to mixers, recorders, and more. A front panel active/passive switch lets you use your favorite bass without any issue. The flexibility of the Orange OB1-500 ensures that you can use it at any gig, rehearsal, or studio date.

• A single channel bass head that acts like a bi-amped rig
• Clean side of the amp has a 3-band Baxandall EQ with powerful tone-sculpting ability
• Gain control only affects the upper harmonics of your sound keeping the bottom end fat and full
• Dial in everything from subtle warmth to full on overdrive and distortion
• All-analog signal path with Class A/B power amp that delivers big tone
• Footswitchable blend and gain controls mix your clean and dirty sound together
• Controls include volume, bass, middle, treble, gain, blend, and active/passive switch
• Blend and gain are footswitchable
• Balanced DI out for feeding your signal to a mixer or PA
• 19" rack width and 2U tall