Regarded as one of the premiere bass amplifier companies for decades, Ampeg has released numerous classics. Though the SVT and Fliptop amps tend to be the most well known, the V4B has won a special spot in the hearts of minds of Ampeg aficionados world wide. With less available power than the SVT, bassists love being able to get that classic growl without ear-splitting volume levels.

At first glance, the V4B appears to be a relatively simple amp with only the major controls, but Ampeg's signature rocker switches deliver a wide array of tonal capabilities. These amps are often chosen for their versatility while maintaining the classic Ampeg sound.  Recorded through one of Ampeg's legendary 8x10 cabs, these profiles deliver superior low-end thump while maintaining their articulation.


If subtle compression and silky tones are your thing, check out the "Smooth" profile. With a light roll off on the high end, you'll notice the mids cut through, carried by the tight lows for a classic ear pleasing sound.


Looking for that smooth Ampeg growl to let your Kemper shine? Look no further! Load in the "Balanced" profile and you'll find a workable and responsive sound suitable for any style.


Harnessing the power of the 8x10 cabinet, our "Thump" Profile brings every bit of low end a V4B can provide while retaining clarity in the higher registers. Low notes are thunderous, bringing unparalleled body and depth to any gig.


Browse over to the "Punchy" profile which pushes you over the edge of speaker break up and tube saturation. This one is perfect for the bass player that needs more presence in a slightly more aggressive situation. 


While some look for precision and clean headroom in their bass tone, others take to a much more... unconventional approach. This is where our "Drive" profile comes in. We've opened up the V4 to "eleven" to get as much of that classic growl as possible. The result is an aggressive, yet tasteful Kemper profile sure to satisfy your alternative side.


The "Ratty" profile delivers a Lo-Fi, almost fuzzy sound perfect for the loudest styles of music.  Notes sustain for days and the low end fills out in a huge way.  Get a taste of grungy garage rock in your Kemper today.

With a tasteful mid range cut and plenty of low-end rumble, we chased the softer, fuller aspects of the instruments range. You'll find your bass notes filling the room while the higher range sits nicely in the mix of a band.  

Maybe midrage is more your thing? Dialing up the "Mids" profile delivers a robust, mid-forward tone that is sure to fill out the low end while maintaining it's presence in the mix.

On the contrary, the "Hollow" profile takes a modern punchy bass tone and dials back the midrange.  Tonally this lets the low end breathe and the high end pop. "Hollow" is a favorite for slap, or other agressive playing styles.


Break out your dancing shoes for this one! The "Defined" profile was crafted around the funkadelic nostalgia of the 70's disco scene. The profile emphasizes the spank and pop for those more prominant lead lines while maintaining clarity to sing on its own.