ORANGE OB1-500 Bass Amplifier Head

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.

OB1-500 is the 500 Watt version, 2U rack dimensions

The sound is in your head. You've played countless instruments in search of the ultimate soul mate. Now you need an amp that will speak your sound to the audience. Thatʼs where the SVT-3PRO comes in. Thereʼs a reason this amp is a best seller—it delivers the goods! With up to 450 watts and the sweet sound of tubes, the SVT-3PRO is the top choice of rockers and funkmeisters around the globe.  
Itʼs all about tone. The SVT-3PROʼs Frequency control allows you to select the center frequency for the Midrange control, giving you a choice of five distinct "voices” for the Midrange. The center frequencies are 220Hz, 450Hz, 800Hz, 1.6kHz and 3kHz. And if thatʼs not enough, you can use the 9-Band Graphic EQ to custom tailor your sound even more. Or use the EQ to set up a footswitchable "second channel” for your show-stopping bass solo.

The SVT-3PRO is designed for the player who wants SVT tone and performance (with a few modern enhancements) in a convenient rackmount design. Robert Trujillo (Metallica) and Les Claypool (Primus) are just a couple of the world-class artists that depend on the SVT-3PRO to get the job done, day in and day out.

Ampegʼs Portaflex PF-350 delivers legendary Ampeg tone in an ultra-compact design that pushes out a hefty 350W. Tools like a built-in limiter, FX loop and direct out provide flexibility for the gigging bassist. Pair it with our PF Series flip-top cabinets for the vintage styling and portability of Ampegʼs iconic Portaflex originals.

The PF-800 delivers the superior performance of Ampegʼs Portaflex Series bass heads in an ultra-compact 800-watt design perfect for power-hungry bassists that demand uncompromising tone. Plug into a pair of Portaflex bass enclosures for a vintage-styled rig that is extremely powerful, portable and undeniably Ampeg.

Ampegʼs Portaflex PF-500 bass head delivers a staggering 500W of power in an ultra-compact design providing pure Ampeg tone in an extremely portable package. Precise tone controls and gig-friendly input/output options provide ultimate flexibility. Pair it with our PF Series flip-top cabinets for the vintage styling and portability of Ampegʼs iconic Portaflex originals.