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Digital data of a world-renowned Japanese-made machine is now available for download.

[Summary] Ovaltone's recommended effects explained! What are their features and reputation? [Reviews and sound demos]

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This high-quality pedal, featuring an analog circuit, is becoming increasingly popular with professional users.

A handmade effects pedal brand from Japan

Ovaltone

In this article, we will explain the strengths and appeal of each brand, as well as a selection of attractive effect pedals that you should definitely check out!

The lineup is quite diverse, focusing on distortion pedals, so be sure to find one that suits your taste!

table of contents

\ Going to meet Sound House's sister /

An older sister I often see

Please use Sound House again next time.

What is Ovaltone? | "Practical Hi-Fi" refined by Japanese handmade craftsmanship

Origins and development philosophy

  • Made in Japan by hand
    Unlike large-scale mass production, we have a small but elite team that handles everything from design to prototyping, evaluation, and improvement. Our lineup is constantly updated with the common language of "bandwidth design that is useful in the field."
  • Player-driven prototyping
    The company's policy is to repeatedly test the product with studio and live guitarists from the prototype stage.The product is not only designed to sound good on its own, but also to prioritize clarity and separation when mixed with a band.
  • The model axis is clear
    FOUNTAIN = OD that leaves nuance
    OD-FIVE = Modern high-gain "amp-like" style
    GD type = wide range distortion
    TM4086 = Fender-style sparkle
    WARM/PRIME = Utility to prepare the foundation

Sound creation philosophy and circuit strengths

  • Audible peaks in the midrange
    The mids are raised without being too loud, the lows are tight, and the tops are left just enough. Its distinctive feature is that it stands out in the mix without hurting the ears.
  • Picking tracking ability
    The attack is fast and the decay is natural. The curve is adjusted so that the sound reflects your playing style and dynamics without being overly compressed.
  • Headroom design (examination of boost and power supply operation)
    Some models use internal boosting to ensure headroom. The range is wide at low gain, preventing chords from becoming muddy. Even when you step on the pedal for solos, the sound remains thick and sustained.
  • Affinity with the real amplifier
    The low frequencies don't swell too much when boosted, the tone is set to actual values, and the S/N and gain structure are consistent in both series and parallel configurations. As a result, its strength is that it doesn't suddenly become difficult to use when combined with 4CM or external pedals.
  • Maintainability and individual stability
    The precision of component selection and assembly ensures stable operation even in the face of temperature changes and power supply conditions, leading to praise for its high reproducibility even when touring.

Summary of Ovaltone's recommended effects

FOUNTAIN HS-model

Product Features
  • Hard Clipping Added
    Based on the FOUNTAIN 2025 ver., an additional level of hard clipping has been added to enhance the edge of the attack and the stickiness of the low range.
  • Versatile Control
    In addition to the Volume/Tone/Gain/Pre Gain knobs, it also features a CLIP switch to increase distortion in the pre-gain section and a FAT switch to thicken the sound quality.
  • High presence
    Provides a powerful drive sound that enhances solo playing without relying on amp compression
  • Signature Model
    A signature model supervised by guitarist Hidehisa Sasaki, designed with meticulous attention to detail

The FOUNTAIN HS is a high-gain drive pedal based on the regular FOUNTAIN, adding another level of distortion.

It has an edgy tone and a thick low end, while also allowing for extensive sound shaping with a wide range of controls. It has enough presence to make solos stand out on its own, and is optimized for lead playing.

Positive reviews
  • The solos are clear and the lead playing stands out.
  • Versatile controls allow for a wide range of tones
  • The casing is sturdy and luxurious, so you can use it with confidence.
Negative reviews
  • It is expensive and hard to obtain
  • There are many switches and knobs, so it takes time to get used to operating them.
Ovaltone
39,600 JPY(TAX+) (As of 2026:05, March 16, 13 | Rakuten Market research)

FOUNTAIN 2025 ver.

Product Features
  • A variety of switches
    Newly equipped with a PRE GAIN knob, FAT switch, and CLIP switch, allowing for fine-tuning of the sound quality
  • Wide range of dynamics
    All-around design that covers everything from clean to crunch and overdrive
  • 30V boost circuit
    Internally boosted to 30V for high headroom and clarity
  • High-frequency clarity
    Strong top end and well-balanced output from crystal clean to sweet overdrive

The FOUNTAIN 2025 ver. is a completely improved version of the original FOUNTAIN. It features a variety of switches and an increased output voltage of 30V, improving transparency and headroom.

This single unit can produce a wide range of tones, from natural crunch to sweet overdrive.

Positive reviews
  • Highly versatile, it can handle everything from clean to drive sounds with just one unit
  • Even when distorted, the sound remains clear and maintains the original nuances
  • The PRE GAIN and FAT controls allow you to flexibly change the distortion texture.
Negative reviews
  • The amount of distortion is sufficient, but it may not be enough for those who want hard distortion.
  • It's expensive, and opinions are divided on its cost-effectiveness.
Ovaltone
34,980 JPY(TAX+) (As of 2026:05, March 16, 13 | Rakuten Market research)

OD-FIVE 2 eXplosion

Product Features
  • Dual Channel
    Two independent drive circuits, channel switching possible with a toggle switch
  • Multi EQ Knob
    Each channel is equipped with Level/Middle/Edge/Gain knobs, allowing for versatile sound creation
  • Gain range switching
    The range switch on each channel allows you to select the distortion level in two steps.
  • Bright Switch
    Bright switch on the side adjusts the amount of high frequencies to suit an amp-like sound quality

The OD-FIVE 2 eXplosion is a two-channel drive pedal that aims to replicate the Custom Audio OD-100 sound.

Each channel is equipped with a 4-band EQ and gain range switch, allowing for rich sound creation that suits a wide range of genres.It provides clear, well-balanced modern distortion like an amplifier.

Positive reviews
  • Amp-like smooth distortion makes phrases clear without being buried.
  • I like the fact that you can combine two circuits to create a wide variety of sounds.
  • The range switch allows you to easily change the distortion range, which is convenient.
Negative reviews
  • There are many functions and knobs, so it can be difficult to set up the first time you use it.
  • It is expensive, large, and heavy, making it difficult to try out easily.
Ovaltone
39,800 JPY(TAX+) (As of 2026:05 on March 14, 13 | According to Amazon)

OD-FIVE 2 eXplosion Custom for Pro

Product Features
  • 3-mode gain
    Each channel has three gain ranges: Low, Mid, and High, allowing for a wide range of distortion.
  • Stage specifications
    A professional model that has been repeatedly improved with live performance in mind. Featuring a powerful sound.
  • ease of use
    Designed to improve practical operability while maintaining the same feel as the base model

Custom for Pro is a limited edition model of the OD-FIVE 2 eXplosion that has been further tuned for professional use.

Three gain stages have been added to each channel, providing a wider range of sound pressure and response. This practical and easy-to-use pedal is perfect for everything from main drive in live performances to more subtle support sounds.

Positive reviews
  • Even at full gain, the sound doesn't get crushed, resulting in a clear, thick drive sound.
  • The controls are streamlined, allowing you to quickly reach the sound you need.
  • Well-balanced distortion from low to high frequencies makes it difficult to get lost in band sounds.
Negative reviews
  • Because it is a custom product, it is difficult to obtain and tends to command a premium price.
  • Due to its size and weight, it requires ample space to step on.
Ovaltone
49,500 JPY(TAX+) (As of 2025:12 on March 26, 18 | According to Yahoo Shopping)

GD-013 Version 2.0

Product Features
  • 3 distortion modes
    Equipped with three modes: DIST/VIN/OD, it supports a wide range of sounds from crunch to high gain.
  • 3-stage FAT switch
    The FAT switch allows you to choose from three levels of mid-range thickness, adding presence to the sound.
  • Inheritance of the origin
    Inheriting the well-balanced frequency response and fast attack of the original GD-013
  • Enhance expressiveness
    Version 2.0 increases the drive amount and maximum FAT effect, delivering a powerful sound.

The GD-013 Version 2.0 is an overdrive/distortion pedal that inherits the classic distortion texture while increasing its power. Three switchable modes cover everything from classic rock to modern high gain.

The FAT switch thickens the sound, adding depth to the sound and giving it presence that stands out even in an ensemble.

Positive reviews
  • A wide range of modes to suit a wide range of genres
  • Activating the FAT switch makes the sound much thicker and more present.
  • The upgraded version allows for deeper distortion than the previous version.
Negative reviews
  • If you increase the distortion, noise may become noticeable.
  • There are many knobs, so it takes time to get used to the detailed settings.
Ovaltone
29,800 JPY(TAX+) (As of 2026:05 on March 16, 13 | According to Amazon)

GD-XIII

Product Features
  • next generation circuit
    Equipped with the newly developed GD-XIII circuit, it delivers a new sound that is different from the series.
  • Wide Gain Range
    Covers a wide range of distortion from low gain to high gain, expanding the scope of sound creation
  • Game music compatible
    Under the supervision of a guitarist involved in game and anime music, we pursue a wide range of expressive sounds.
  • Series succession
    Inheriting the stable frequency balance and high-fidelity distortion characteristic of the GD-013 series

The GD-XIII is the third generation drive pedal in the GD-013 series. It features a completely new circuit design, achieving a sound image never before seen.

It responds well from low to high frequencies and has a unique sound developed through game music. It is a next-generation drive that can handle a wide range of sounds, from clean tones to heavy leads.

Positive reviews
  • I like the unique sound created by the new circuit.
  • A wide gain range allows you to freely create sounds from clean to heavy.
  • Even when used with a band sound, the low frequencies are clearly produced and the sound is thick.
Negative reviews
  • Because it is not well known, there is little information available and it is difficult to try it out.
  • If you're looking for strong distortion, you may find it lacking compared to other models.
Ovaltone
49,500 JPY(TAX+) (As of 2026:05, March 16, 13 | Rakuten Market research)

TM4086+

Product Features
  • Discrete Drive
    Equipped with a unique sparkling edge and crushing crunch drive
  • Built-in booster
    Built-in booster function that adds a thick, sustained sound simply by turning it on
  • Wide Range Control
    Gain/Tone/Bass/Treble knobs allow for a wide range of sound creation
  • Amp-like characteristics
    Bright and clean distortion reminiscent of Fender amps

The TM4086+ is an overdrive/booster inspired by the 90s Fender amps. It combines a bright and clear drive sound with a built-in booster for increased sound pressure.

Independent tone controls allow you to fine-tune the high and low frequencies, creating a natural, saturating sound like that of an amplifier.

Positive reviews
  • Natural crunch sound similar to that of an amplifier
  • The built-in booster expands the sound dramatically when boosted, giving it presence even when used solo.
  • The tone control is effective and allows for great freedom in sound creation.
Negative reviews
  • The high gain mode is not as strong as other models, so it's not enough for metal music.
  • The effect of the FAT switch is difficult to understand
Ovaltone
35,200 JPY(TAX+) (As of 2026:05, March 16, 13 | Rakuten Market research)

Second half of the video

WARM GEAR 2

Product Features
  • Master Volume
    Instead of the previous two-stage volume control, a new master volume knob has been added that allows for stepless volume adjustment.
  • FILTER switch
    A switch to weaken the high-pass filter has been added to the side of the housing, allowing for softer sound creation.
  • Warm Tone
    It has a warm tone in the bass, but when you turn up the knob it also emphasizes the mids and treble, giving it a punchy character.
  • 高い汎用性
    It has a modern and clear boost sound that suits a variety of guitars and amplifiers.


WARM GEAR 2 is the second generation model of the popular booster, adding a master volume and FILTER switch for more flexible sound adjustment.

It produces a warm and clear boost sound, and by turning the knobs you can increase the volume and EQ simultaneously for a powerful boost. It's ideal for increasing the sound pressure while still taking advantage of the characteristics of the amp.

Positive reviews
  • The tone is warm and straightforward, and you can boost the guitar sound while preserving it.
  • It's convenient that you can change the high-frequency output by turning the filter on/off.
  • The volume has a wide range of adjustment, making it easy to use different sounds within a song.
Negative reviews
  • Slight increase in internal noise at full boost
Ovaltone
18,920 JPY(TAX+) (As of 2025:04, March 19, 18 | Rakuten Market research)

Earlier models

PRIME GEAR DELUXE

Product Features
  • Multifunctional Buffer
    Equipped with a variety of functions, including a two-system input selector, buffered tuner output, mute switch, and signal branching (junction box).
  • 19dB clean boost
    Built-in flat boost of approximately 19dB, significantly increasing volume while maintaining low frequencies
  • Curved Impedance
    The natural buffer section, which has revised the elements and circuitry used, adopts CURVED characteristics that reduce impedance in the high range.
  • Board reorganization support
    Versatile design that can be used when changing the layout of your effects board, such as using a tuner out or both inputs

PRIME GEAR DELUXE is the fourth generation model in our high-quality buffer series. In addition to the buffer, it also features multiple input switching, tuner out, mute, clean boost, and signal splitting functions.

The internal circuitry has been improved to deliver a transparent sound with minimal impact on tone, making this a reliable utility pedal suitable for a wide range of uses.

Positive reviews
  • A versatile function that is useful when rearranging your pedal board
  • I like the transparent buffer sound quality and the ample clean boost.
  • The tuner output buffer quality is good, so connecting a separate tuner doesn't degrade the sound quality, which is convenient.
Negative reviews
  • The wiring for switching between multiple inputs and outputs is complicated, and first-time users may find it difficult to set up.
  • The price is a little high, so it's hard for people who don't need it to afford it.
Ovaltone
25,300 JPY(TAX+) (As of 2024:06 on March 18, 15 | According to Yahoo Shopping)

Summary | Create a strong foundation and a central role with Ovaltone.

Ovaltone is a handmade product made in Japan that combines "sounds good on its own" with "sounds great with a band." The FOUNTAIN series is a high-quality drive that emphasizes nuance, the OD-FIVE and GD series have a wide range of protection up to modern, the TM4086+ is a bright crunch, and the WARM/PRIME are essential for laying the foundation.

First, stabilize the base, choose one distortion that will be the main focus, and then add accents as needed. This is a brand that is hard to miss even if you don't have a set purpose.

Please try out one pedal that you like first.

\ Going to meet Sound House's sister /

An older sister I often see

Please use Sound House again next time.


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