Introduction
The VOX MV50-CR is a highly revolutionary, ultra-compact hybrid guitar amplifier head designed to deliver the monstrous, touch-sensitive growl of a traditional high-gain tube amplifier in a palm-sized chassis. Voiced specifically to replicate the aggressive, mid-heavy crunch of classic British high-gain stacks, this 540-gram micro-amplifier fits comfortably on any modern recording desk or travel pedalboard, offering modern guitarists and desktop creators plug-and-play vacuum tube performance.
Main Features
The defining strength of the VOX MV50-CR lies in its all-analog preamp circuitry and state-of-the-art Nutube technology. At the absolute heart of the preamp is a Korg Nutube 6P1 double-triode vacuum tube, which successfully captures the genuine organic warmth, natural compression, and touch-sensitive sag of traditional large glass tubes at a fraction of their size and power draw.
To deliver serious stage volume, the preamp is paired with a highly efficient, custom-designed Class D power amplifier, capable of pushing a full 50 watts of RMS power into a 4-ohm cabinet. The front panel features a classic, analog needle VU meter that monitors output levels in real time, alongside three straightforward controls: Gain, Tone, and Volume.
To ensure complete setup flexibility, the rear panel features an EQ switch with "Flat" and "Deep" voicings—where "Flat" is optimized for standard large cabinets, and "Deep" boosts low-end frequencies when pairing the head with compact 1×8-inch cabinets. It also features a physical three-way attenuator switch, allowing you to scale the output power to 10% or 1% for quiet, saturated bedroom practices.
Usage Scenarios
- Studio: Capture screaming, high-gain British rock leads directly into your DAW, utilizing the headphone/line jack's high-quality speaker cabinet simulation.
- Live performance: Transport an entire 50-watt tube rig to gig venues in your coat pocket or gig bag, running the head directly into any standard cabinet on stage.
- Practice: Work on high-gain tapping and heavy riffs at midnight without disturbing neighbors, utilizing the three-way power attenuator or headphone output.
- Recording: Track responsive, touch-sensitive overdriven rhythms, using your guitar's physical volume knob to clean up the analog tube gain.
- Education: Instruct students on historical high-gain British amplification, demonstrating how cabinet sizes affect low-end resonance using the Flat/Deep EQ switch.
Features
- Ultra-compact, featherlight hybrid amplifier head weighs only 540 grams for extreme transport portability.
- Preamp section features Korg's innovative Nutube 6P1 true vacuum tube for organic tube warmth and sag.
- All-analog preamp design using discrete components preserves natural guitar playing dynamics.
- High-efficiency Class D power amplifier delivers up to 50 watts of output power to drive external cabinets.
- Voiced specifically to emulate the aggressive mid-range and rich overdrive of classic British high-gain stacks.
- Classic illuminated analog needle VU meter monitors physical output levels in real time.
- Rear EQ switch with Flat and Deep settings optimizes the output for large stacks or micro-cabinets.
- Onboard power attenuator switch allows you to scale the wattage to 100%, 10%, or 1% for silent practice.
- Headphone and Line output jack features high-quality speaker cabinet simulation for direct-to-DAW tracking.
- Sturdy metal construction with an elegant mirrored front faceplate provides a premium desktop appearance.
Technical Specs
- Amplifier Type: Hybrid (Nutube Preamp with Class D Power Amp)
- Preamp Vacuum Tube: Korg Nutube 6P1
- Number of Channels: 1
- Output Power: 50 Watts RMS at 4 Ohms, 25 Watts RMS at 8 Ohms, 12.5 Watts RMS at 16 Ohms
- Front Panel Controls: Gain, Tone, Volume, Analog VU Meter
- Rear Panel Controls: EQ Switch (Flat / Deep), Eco Switch (Auto Power Off On / Off), Standby Switch, Attenuator Switch (Full / 10% / 1%)
- Inputs: 1 x 1/4-inch Standard Monaural Instrument Input Jack
- Outputs: 1 x 1/4-inch Standard Speaker Output Jack, 1 x 1/4-inch Stereo Headphone / Line-Out Jack (with speaker cabinet simulation)
- Power Requirements: DC 19V AC Power Adapter (included)
- Current Consumption: 3.43A
- Dimensions: 135 mm (W) x 100 mm (D) x 75 mm (H)
- Weight: 540 grams (approx. 1.19 lbs)
CK Music Staff Recommendation
The CK Music team recommends the VOX MV50-CR (VOX MV50 Rock) for recording guitarists, traveling performers, and bedroom hobbyists who want the genuine touch response of a real tube head but refuse to carry heavy gear. Most micro-amplifiers rely entirely on fully digital solid-state chips that sound harsh and lack physical touch sensitivity. The VOX MV50-CR completely changes this. By running a real Korg Nutube vacuum tube in its preamp, it delivers the rich harmonic sag, dynamic cleanup, and organic compression of a true high-gain British stack. Combined with its smart cabinet-simulated output and adjustable power attenuator, it is an exceptionally compact, professional-grade direct-recording and live gigging companion.