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Vox VX50KB 50-watt Keyboard Amp

3-channel, 50W Keyboard Amp with Nutube Circuitry, Coaxial Speaker, and Bass-reflex Cabinet
$299.99

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Flexible, Affordable, Compact Keyboard Amp

The Vox VX50 KB is a 50-watt keyboard amplifier with Nutube circuitry that delivers tube-like sound in a cool-running, highly-portable package. From the sparkling high range of a piano to the low-end punch of a synth bass, the VX50 KB's single coaxial speaker delivers impressive full-range sound in a compact bass-reflex cabinet. And equipped with three channels, the VX50 KB can handle your most complex setups. Sweetwater's advice? If you're looking for a flexible, affordable, and compact keyboard amp, give the Vox VX50 KB an audition.

Vox VX50 KB Keyboard Amp Features:

  • Nutube circuitry delivers tube-like sound in a cool-running, highly-portable package
  • 50-watt amplifier and coaxial speaker
  • Specially-optimized bass-reflex cabinet helps reproduce rich low-frequency content
  • 3-channel input handles complex connection requirements
  • Includes power supply

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Warranty Info

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Tech Specs

  • Speaker Size: 1 x 8"
  • Total Power: 50W
  • Number of Channels: 3
  • EQ: 3-band EQ
  • Inputs: 2 x 1/4" (keyboard in), 1 x 1/4" (line/mic), 1 x 1/8" TRS (aux in)
  • Outputs: 1 x 1/4" (line out), 1 x 1/8" (headphones)
  • Height: 12.32"
  • Width: 13.94"
  • Depth: 8.19"
  • Weight: 9.04 lbs.
  • Manufacturer Part Number: VX50KB

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Customer Reviews

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Rated 5/5

Lunchbox Amp.

When I got to the gig my band mates said, "Did you bring your lunchbox with you?" Then we started to play. Their jaws dropped. My Hammond clone screamed. My horns were bright and punchy. Piano was clear and had a presence. Strings were full and warm. Consensus after the first set? Amazing the tone and volume that comes out of an amp this small and light.
Our second set is louder and harder. I sent the line out from the Vox to my Mackie Thump12 for more volume and low end. Same great tone just louder. The Nutube pre amp adds an analog warmth to everything you put through it. Is it a little hissy? Valid complaint but it sure doesn't bother me. I'm getting too old to carry the heavy stuff. I love this amp!
Music background: Pro keyboards 50+ years.
Rated 5/5

Meets my needs peefectly

At 71 years, one of my major needs as a transporting musician is size and weight of equipment, in addition to sound. This Vox is just right. I usually use it for my Casio CST 1, to boost its sound in a larger room. It's sound is surprising for it sized and is great for a fast throw in the car when us old guys go for an unplugged jam session.
Music background: Keyboard
Rated 5/5

Nice product for the budget

I use this for multiple keyboards in a worship hall and I am so glad I purchased it because it'sa great amp.
Sound quality is great, the three inputs are really beneficial because we have different brand keyboards and we are able to balance the sound output really well.
Rated 5/5

VOX VX50KB (aka: "The Lunch Box Amp"

Impressed! Produces a warm sound that has good clarity. I'm using this amp for my synthesizers in a small room. I especially like the small footprint of this amp. It is very light weight and easy to move around. Price point of product won't break the bank either. The case of this amp is made out of plastic (the plastic is heavy duty and of good quality). This could give the false impression of being a cheap piece of junk, but it is anything but. The black and white color (cosmetic) combo gives me that retro 60's vibe. I believe VOX is now a part of the KORG family. Overall, a "tight" little amp with good sound quality.
Rated 5/5

Sounds like Innovation.

I wanted this to get an idea as to the audio quality, and performance of the Korg Nutube Integrated circuit Aplifier inside performed. Wow. My keyboards have A Tube amp output right on the tracks. Streaming music of vintage albums and recordings on it is pleasing. Maybe best Keyboard Amp in A long time.
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