GemTune GS01 Hi-Fi Tube Amplifier with VU Meter Review

Guitarists and other professional musicians would agree how helpful guitar amplifiers are. Not only do they make the sound clearer and more powerful, but they also help bring out the smooth and natural tones.

GemTune GS01 Hi-Fi Tube Amplifier with VU Meter Review

Amplifiers work significantly by increasing or amplifying the power of a signal and as a result produces a loud sound. Most amplifiers have added features such as having sound effects.

There are several kinds of guitar amps available in today’s musical generation. The tube amp which was first to own the patent, then there’s the solid-state amp that tried to make a revolution against tube amps. Other amplifiers include magnetic amps and power amps.

However, the talk about which amp to use has been, and continuously, intriguing to amateurs and pros. Purists, or guitarists who are hooked on the retro sound of electric guitars, prefer and justify the use of tube amps. While some new guitar pros choose solid-state amps because unlike the expensive and bulky tube amps, they are more portable and low-cost.

Tube amps, according to the opinion of many, though old, still remain the best compared to solid-state amps. They produce the sound of what electric guitars should. Most tube amps are expensive, but this does not concern most of the purists.

If you are in search for a tube amp, why not consider the GemTune GS01 Hi-Fi Tube amp? It boasts several unique features and awesome qualities. Read on as we talk more about this amplifier.


When looking for an amplifier, it is necessary to check for the following qualities:


  • The GemTune GS01 has a post-modern look—a clean metal frame with wood panels.
  • The tube amp has five exposed valves.
  • Intuitive and clean controls on the front of the amp.
  • Weighs 22.5 lbs. (approx. 10 kg.) with the following dimensions: 16.3” x 15.8” x 9.2.”
  • Small rectangular box structure.
  • Outputs and inputs are aligned at the back.


  • The GemTune GS01 has controls for volume and tone.
  • The GemTune GS01 is an 8-watt tube amp.
  • The frequency response of this amp is 20 Hz – 20 kHz.
  • The output impedance is 4 ohms or 8 ohms.
  • The input impedance is 100 kΩ (kilo-ohm).



  • This hi-fi tube amp is pricey but is worth the money spent compared to other brands with limited specs.


  • Modern metal finish with retro wood panels makes the tube amp versatile in any events.
  • Valves are exposed, you will see the beautiful lighting of the tubes while playing.
  • Easy to access controls for volume and tune.
  • This amp has low wattage and voltage requirement, thus playing using this amp excessively would not give you any trouble with the electricity bill.
  • The tube amp is small—ideal for storage or small-spaced studios.
  • It has three essential tubes—5A4R, EL34, and 6N9P—that can handle high power and fidelity. These tubes can also maintain balance in tone and saturation.
  • This tube amp is comparatively low-priced which makes the product a great buy considering the unique features it has.


  • The valves and the transformers are bluntly exposed. The components usually run hot and having them exposed somewhat raises the chance to a physical burn.
  • Also, having the tubes externally unprotected means they are more prone to breakage due to accidental bumps, smashes, or hits.
  • Just like any other tube amps, this product requires maintenance and occasional replacement of parts that can cost you from small cost to extremely high prices.
  • The tube amp is quite heavy for its size.
  • The package does not include an instruction manual, thus assembly of the valves is a challenge. Not to mention, you would not know where a tube should go in what spot.
  • The amp does not have a handle support.


The GemTune GS01 is a great hi-fi tube amplifier. It boasts of several amazing features worth buying, and of course, worth bragging. The overall look is also great—the metal frame shows modernity while the wood panels show a hint of nostalgia.

Additionally, this tube amp is flexible for any genres be it blues, jazz, or rock. Thanks to the vacuum tubes, balancing the tone is a breeze with just a few tweaks. The controls are neatly placed and very handy.

Some drawbacks include having the sensitive parts exposed and being hefty despite the diminutive size. The product also does not have an instruction manual. You can search the instructions online given by non-profit individuals.

Possible Alternatives

The Marantz PM6005 Hi-Fi Integrated Amp is a great alternative to the GemTune GS01 Hi-Fi Tube Amplifier with VU Meter.

With a price slightly higher than GemTune, the Marantz PM6005 has digital inputs and integrated controls for better, smoother sound quality. It has four audio inputs including fiber optic and phono inputs. It also has coaxial digital audio input for compatibility with digital audio sources of all kinds.

The Marantz PM6005 flaunts HDAM technology that provides an array frequency response, dynamic range, and low distortion. The connectors are gold-plated which provides a better signal transfer. This integrated amp can be controlled remotely.

Connect multiple speakers with this amp as it has A/B speaker which allows the user to connect two pairs of loudspeakers and choose either one or both of the speakers for listening. This amp also has high-current transistors that can manage increased power output.


The GemTune GS01 truly is a fantastic amplifier. The qualities are great from the structure, operability, and the cost. Though it’s obvious it has some flaws and downsides, most of them are negligible. I would highly recommend this product for guitar enthusiasts.

If you are concerned about the price, you can look for other budget tube amps available in the market, garage sales, or surplus shops. Remember, tube amps require much care and replacement of parts. Make sure to keep a budget for maintenance to keep your tube amp longer and sound good.


1 thought on “GemTune GS01 Hi-Fi Tube Amplifier with VU Meter Review”

  1. I am thinking about getting a tube amp. I am looking for a 2 channel amp that cam be used with my emotive pre amp. I would like to stay around $700.00. I am using a pair of klipsch rf35 tower speakers with it. Any suggestions?

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