EHV-R4 aka "4/4 EHV"

EHV-R4 aka "4/4 EHV"

Regular price ¥39,200 Sale

*The EHV-R series has many special internal parts and requires more precise assembly than normal, so delivery times will be longer than for the regular EVR series.

*Delivery of sold-out items from October 18, 2025 is scheduled for early February 2026.

*Delivery of the small lot to be released on January 17, 2026 is scheduled for early March 2026.

*The first batch will be hand-painted with Swirl, just like the other models. This will end once sold out. The standard finish batch is scheduled to be released in spring 2026.

EHV Concept = Extra High Voltage Concept

In 2013, while working on the release of the Leqtique - 9/9, I was busy researching an element called a MOSFET. I've used MOSFETs extensively in the designs I've been involved in, including the D-MOSFETs in the "9/9" and "10/10", as well as the Leqtique EVR - RFD, Phantom EVR - Bleu OD, Cliffs, and more.

As MOSFETs are utilized in all areas of our lives, an increasing number of devices are now capable of operating at high voltages of several hundred volts. In fact, the D-MOSFET used in "9/9" is a semiconductor that can actually be operated at an operating voltage of nearly 1000V. We were aware of this fact back in 2013, but at the time it was impossible to consistently supply 200-300V, the same voltage as an amp head, within the narrow interior of a compact effects pedal. So we focused on finding the sweet spot where we could use D-MOSFETs to output a tube-like sound at 9V, and that's how we completed the Leqtique - "9/9."

(Internally boosted up to 281.9V @ EHV-R9

Now, 12 years later, numerous chips and methods for generating ultra-high voltages have been developed, and effects pedals incorporating vacuum tubes using voltages exceeding 100V are now appearing on the market. At Leqtique EVR, we use these ultra-high voltages to drive various MOSFETs, FETs, high-voltage op-amps, or next-generation high-voltage devices rather than vacuum tubes. Rather than emulating tube sound with analog elements, we aim to operate new-generation analog elements using the exact same methodology as the preamp section of an amp head, creating response, dynamics, envelope, and distortion textures that are on the level of pedals never before seen.

The obvious benefits are that the vacuum tubes' inherent vulnerability to physical factors such as heat and shock is eliminated, and because many next-generation devices are extremely small compared to vacuum tubes, it will now be possible to incorporate multi-stage amplification circuits using vacuum tubes, such as the pre-amplifier section of a high-gain amplifier, into a compact effects pedal format at the same high voltage level and place it at your feet, something that was previously impossible.

(Triodes & MOSFETs)

The EHV-R4 "4/4 EHV" is the first model to incorporate this EHV concept. Driving three MOSFETs at a high voltage of 200-300V, it delivers a tubey, lustrous rock sound that's quite different from previous emulations. While its gain range is strictly "4/4," it doesn't deliver extreme metal sounds, producing a mid-gain sound that's intuitively pleasing, similar to the amp heads that many people first hear. Think of it as a direct extraction of the preamp section of a medium-gain boutique amp head, or as a pedal-like medium-gain OD/DS with a new level of response and dynamics. As its name suggests, it can be used as a small foot-mounted amp to generate main distortion, or, in the latter case, by combining it with an actual amp head or other effects, it can be used as an additional HOT Channel or to add stunning, three-dimensional distortion to an already established tone palette.

We've been particular about placing it at your feet, and so it's been designed so that it can be used electrically and with the same feel as a regular effect pedal. Feel free to combine any effect pedal before or after it. There's no need to think of it as a "preamp." The "4/4 EHV" has amp-like volume, gain, and tone, but it also has a small Low-Cut control as an "effect pedal" essence, which provides a more pronounced change than the controls on a regular amplifier, and the operation feels the same as other Leqtique (EVR) effect pedals. Feel free to fine-tune it to suit the equipment before and after it or your guitar.

(2025 Leqtique EVR - "Miniamp" & "4/4 EHV"

If the simultaneously released "Miniamp" is like a rich combo amp quietly placed in a jazz club, the "4/4 EHV" outputs a robust rock sound that anyone would hear in a rehearsal studio, with a powerful, three-dimensional output that goes beyond the realm of effects. It's not an emulated sound that attempts to capture the contours of a tube sound, but rather an actual, ultra-high-voltage drive, resulting in a highly responsive and dynamic sound. Turning down the guitar volume produces a clean sound with only the distortion removed. These amp characteristics are realized right at your feet.

 

Control: (Left to Right) Volume, Low-Cut(mini), Tone, Gain

Operation Voltage: 9V 500mA Adapter/Power Supply (internal voltage boosted to 200-300V)

- The required adapter/power supply is a standard 9V 500(mA).

- It cannot be powered by batteries and does not have a battery holder inside.

Shun Nokina

About the "EVR" concept

Since 2019, I have been based in Europe and have been involved in the design of several pedals, but the Leqtique pedal line has essentially been on hiatus without releasing any new products. However, by temporarily moving my base to Iceland in 2024, I was able to gain some wonderful inspiration, and have continued to design all of them as an updated package called "EVR."

"EVR" is the Icelandic word for Europe. The letters strongly evoke the idea that the pedals embody the inspiration and experiences gained over many years of traveling and living in various parts of Europe. The Leqtique pedals originally embodied a strong desire for Europe, with their vibrant paintwork and dark sound, but now they are more clearly embodied as a more real-world experience.

Leqtique pedals, which have not received an update in 15 years, have been completely redesigned from the ground up, including the housing, all components, and concept. For example, the housing, which was previously a one-piece machined aluminum body, has been redesigned from a standard "box" design with a wide tolerance range, but has been completely redesigned specifically for the Leqtique EVR pedal. By rethinking the advantages of a one-piece design, the previously aluminum-only construction has been divided and integrated into three sections: a functional aluminum base case, a non-magnetic stainless steel cosmetic layer, and individually machined parts. This paradoxically addresses the design diversity and consistency of a machined housing while addressing the limitations of material choices. As a result, most of the case, which was previously painted with acrylic paint, has been replaced with anodized aluminum, achieving unprecedented durability. The stainless steel top layer significantly improves the pedal's overall rigidity, and from a cosmetic perspective, the shine of the stainless steel adds a deep, three-dimensional feel to hand-painted pedals. In addition, for ideas that are difficult to produce even with a multi-axis CNC machine, the solution is to create individual parts and then integrate them. In particular, the internal parts, which the team calls the "slider," are deliberately produced in a different color from the pedal concept, and the Gavitt cross wires that have been used since the brand's early days are individually shielded, elevating Leqtique's characteristically neat wiring from two-dimensional to three-dimensional.

Meanwhile, the power section is undoubtedly the most important aspect of a pedal's core design. I'd been using battery snaps from Keystone, a leading brand, for many years, but the highest-quality version was discontinued, and this was the area I was most concerned about... However, when rebuilding everything from scratch with the EVR concept, I wanted to mount the battery itself as a section, rather than using snaps, which could break over time. This ideal was realized in this pedal. Keystone's "Model 91" has not changed much in materials or design from the vintage type, but in terms of firmly holding a 9V square battery and outputting a strong power signal, combined with the separately designed VPTP circuit board, it has evolved to a far higher level than the original Leqtique pedal format.

The majority of these updates are related to the "interior of the pedal," and while the aforementioned high-quality components are often ignored while playing and enjoying the pedal, the question "why?" was one of the driving themes behind this update package. My answer is that the poor accessibility from the back cover was a major factor, so I spent a considerable amount of time thinking about and designing the back cover and fixing mechanism. Ultimately, I evolved the traditional four-point Phillips head screw system into a fixing mechanism with two small carbon fiber-reinforced polyamide knobs manufactured in the UK. These small knobs have enough torque to tighten or loosen with your thumb, but for those with limited access to the interior, the slits are sized to fit coins or picks, so you can tighten them further.

This is the easiest design to open and close the inside of the pedal to date. This is my final answer, coming from someone who has been obsessed with the inside of the pedal. Future new Leqtique pedals and updates to previous models will include many internal trimmers, etc., so I believe this update will undoubtedly have great significance. It also sends a strong message: "Try opening the inside of the pedal from time to time. You will undoubtedly love this pedal even more." Each of the custom parts and secret parts collected from all over the world has its own story... (See blog for details later)